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CZECHOSLOVAKIA

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~ WEATHER and CLIMATE

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The basic unit of the NIS is the General Survey, which provides comprehensivebut concise coverage of the basic characteristics of the area and includes the followingtopics Significance of the Area, Military Geography, Transportation and Telecom.munications, Sociological, Political, Economic, Scientific, and Armed Forces.

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The entire content of this document is National Intelli-gence, and is subject to the special controls established for

the safeguarding of such intelligence. In particular, Na-tional Intelligence may not be shown to or discussed withrepresentatives of any foreign government or international

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The information presented under "Comments on PrincipalSources" requires special handling and is not releasable toforeign nationals under any circumstances.

0JNCLASSI:FIED

. ,.,.ql I I-

%1y;

TABLE OF CONTENTS

This Section 23 supersedes the one dated Decern-"[ bet'1950, copias of which should be destroyed.

PageA. General weather and climatic conditions .............................. 1

1, In trod u ction ............... ............. ....................... 12. Climatic controls ................. .................... 2

a. G eneral circulation.... ........................................ 2b. Migratory pressure systems and fronts ..................... 3

(1) Extratropical cyclones ............................... 3(2 ) A nticyclones ............................................. 3(3 ) F ro n ts . ... .... ...... ... ... .... .. . ... .... . .. . ... . .. . .. .. 3

c. A ir m osses .. ... ..... . .................. ... ......... .... 5d. Topographic influences ... .................................... 5

3. Special phenom ena ... ....... ............ ...... ............... 5a, Local winds ..................................... 5b. Floods ..... ............. ........................ 6

1, W eather and military operations ................. ......... ........ 6

1. Air operations ........................................ .. 6a. Cloudiness ..... ..................................b. Thunderstorms and turbulence ............. 8c. Upper-air winds ................................... 10d. Upper-air temperatures and aircraft icing ..................... 10

2. Air-ground operations ................... .............. 13a. Low cloudiness and ceilings .................... ....... ...... 13b. V isibility ....... . : ............ ........... ......... 15c, Combined ceiling and visibility ............................... 16d, Surface winds ......................... ......... 16e. Stability and low-level temperature inversions ................ 18

', 3, Ground surface operations ................... 18a. Temperature ............................. 18b, Relative humidity .................. 21c. Precipitation . ........... ........... . ........ 22d. Overall effect of weather on clothing, storage, and shelter .. .... 24

(1) Clothing ......................... ......... 24(2 ) Storage .. ...... .......... . . . . ........... 24(3) Shelter .... ... .... ......... ................ 24

C. Meteorological facilities and organization .... . .......... 24

1. History and organization .............. .. 242, Weather observing and forecasting facilities .... 2... .53, Weather communications .................. . ...... 274. Training and proficiency of personnel ... .. . ............... 29

5 I). Climatic data tables ........................ .. 29

14CLiASSIFED E. Co,,men om n principal sources 85........... ....z&

FIGURESPage

Fig. I Sea-level pressure and surface airflow (maps) ................ 2Fig. 2 Tracks of cyclonic storms (maps) ................. ........... 4Fig. 3 Mean annual cloudiness (map) ...................... . ... 6Fig. 4 M ean cloudiness (map) .................... ............ . . 8Fig. 5 Days with specified total cloud cover (map) ................ 9Fig. 6 Mean annual number of thunderstorms (map) ................. 10Fig. 7 Upper-air wind roses, Prague/Ruzyn6 (chart) ................... 11Fig. 8 Upper-air wind roses, Budapest/L6rino, Hungary (chart) ........ 12Fig. 9 Upper-air temperature and pressure, Prague/Ruzyn6 (chart) ...... 13Fig. 10 Frequency of specified ceilings (map) .......................... 14Fig, 11 Frequency of visibility <2% miles (map) ...................... 15Fig. 12 Frequency of specified ceiling and visibility combinations (map)... 17Fig. 13 Mean daily temperature, January (map) ....................... 19Fig. 14 Mean daily temperature, July (map) .......... ........ 19Fig. 15 Tem peratures (m ap,) ....................................... 20Fig. 16 Date of first frost in autumn (map) ................ .... 21Fig. 17 Date of last frost in spring (map) ............................. 22Fig. 18 M ean relative humidity (map) ................. .............. 23Fig. 19 Mean annual precipitation (map) .............................. 24Fig, 20 M ean precipitation (map) .................. . .............Fig, 21 Days with precipitation 50.004 inch (map) .................. 26Fig, 22 Annual number of days with precipitation 0,4 inch (map) -.. 27Fig. 23 Annual number of days with snowfall 50.04 inch (map) ......... 27Fig, 24 Annual number of days with snow cover (map) ................ 28Fig, 2.5 Date of first snow cover (map) ................................ 28Fig. 26 Date of last snow cover (map) .......................... 20Fig, 27 M ean cloudiness (table) ...................................... 30Fig. 28 Mean cloudiness at specified hours (table) ...................... 31Fig, 29 Number of clear days (table) ...... ..... ............ 33Fig. 30 Number of days with total cover !2-elghths (table) ............ 34Fig. 31 Number of cloudy days (table) .......................... ..... 36Fig. 32 Number of days with total cloud cover 6-eighths (table) ..... 37Fig, 33 Days with total cloud cover 0.2-eighths and visibility 2%

m iles (tab le ) ... ... ....... .... .. .............. ........... 39Fig, 34 Days with thunderstorms (table) 41Fig. 35 Frequency of ceiling <656 feet (table) ................... 42Fig. 36 Frequency of ceiling <1,9e8 feet (table) .... ....... 44Fig. 37 Days with low cloud amount 5.ioighths (table) ................ 40Fig. 38 Days with low cloud amount z6-eighths (table) .............. 47Fig. 39 Frequency of visibility <% mile (table) ..................... 49Fig. 40 Frequency of visibility <2% miles (table) ........... .... 50Fig. 41 Frequency of visibility <6 miles (table) ................ 5... 2. 52Fig. 42 D ays with fog (table) .. .. ..... ........................ 53Fig, 43 Days with haze and/ur smoke (table) ........................ 54Fig. 44 Ceiling and visibility combinations (table) ................ 56Fig, 45 Days with surface wind speed F228 knots (table) .............. 59Fig. 46 Days with surface wind speed Z17 knots and no precipitation (table) 61Fig. 47 Days with surface wind speed 4 to 10 knots, temperature >32*F.

but <90*F,, and no precipitation (table) .................... 62Fig. 48 Days with ceiling P984 feet, visibility 2% miles, and surface

wind speed 210 knots (table) .............................. 64Fig. 49 Mean daily maximum temperature (table) 6............ 6Fig. 50 Mean daily minimum temperature (table) ........... ..... 67Fig. 51 Absolute maximum temperature (table) 6.............. 68

ONCLASSIFED

PageFig. 52 Absolute minimum temperature (table) ........................ 69Fig. 53 Days with maximum temperature !32 0 F. (table) ............ 70Fig. 54 Days with minimum temperature 320 F, (table) ............. 71Fig, 55 Mean relative humidity (table) ................. 72Fig, 56 Mean precipitation (table) ............ .... ... .. 74Fig, 57 Greatest and least precipitation (table) ...... ............. 75Fig. 58 Maximum 24.hour precipitation (table) ........................ 77Fig. 59 Days with precipitation 0.004 inch (table) .................... 78Fig, 60 Days with precipitation !0.4 inch (table) .................. 79Fig, 61 Days with snowfall (table) ............ .............. 80Fig, 62 Dates of first and last snowfall (table) ........................ 81Fig, 63 Days with snow cover (table) ......... ...................... 82Fig. 64 Dates of beginning and end of snow cover (tablel ................ 83Fig. 65 Absolute maximum depth of sr, Av (tabie) ................. .84Fig. 66 Surface wind roses (maps) ............... follows 85Fig. 67 Station locations (map) ............. ................ do

4t

This Section wat prepared for the NIS by the De-/ense Intelligence Agency,

JNCLASIFIED

ii.I OUNCLA SF8

Weather and Climate

A., General weather and climatic conditions Lops. Visibility is better in summer than in winter and

1. Introduction is much better in the lowlands than in the mountains,In winter, visibility is at times impaired in industrial.-

Czechoslovakia has a temperate climate, with both areas because temperature inversions confine industrialmaritime and continental characteristics. Winters are smoke or other pollution to the lowest levels. Fog oc-..11fairly cold, cloudy, and humid, with frequent light rain curs rather frequently in winter at many locations, es-or snow. Summers are considerably less cloudy and pecially at high elevations. It is most frequent in the less humid, and precipitation is frequent but somewhat late night or early morning but may last throughout the,:heavier. Summer temperatures are moderate, with day, In summer, visibilities improve considerably, ex.warm to hot afternoons and cool nights. This climate t at some mountain locations where they are pooris the result principally of the relatively moist air reach- through most of the year.ing Czechoslovakia in the prevailing westerly flow from Czechoslovakia Is a complex area of hills and moun-the North Atlantic Ocean and of the migratory pressure tains, interspersed with flat to rolling plains and basins,systems traversing or passing near the country. Occa- The most rugged sections are in the east, encompassingsionally there is an invasion of continental air from the the hills and mountains of the Carpathian Mountain arej,'.east, particularly in winter, and short periods of severely with secondary, less rugged highlands around the pe-.cold weather may result. The varied topography also riphery of western Czechoslovakia, The most extensivestrongly affects the climate, plains are located in the west-central and southern parts,

Temperatures are moderate during summer; in gen. of the country, with minor flat to rolling basins, valleys,'eral, mean daily maximums are in the 60's and 70',; and smaller plains scattered throughout. Elevations('F,) and the highest recorded maximums are in the range from about 300 feet in the southeast to about'90's, Winters are fairly cold, with mean daily minimums 8,700 feet in the rugged eastern part of the Area. Formostly in the upper teens and 20's, although most loca- discussion purposes, Czechoslovakia has been dividedtions have reported temperatures colder than -20*F. into three regions (Fiovn, 67): 1) Western Hills andMean annual precipitation varies from about 20 to 40 Plains, 2) Eastern Lowlands, and 3) Eastern Mountains,.inches at most locations, but amounts range to about The areal variations of climatic elements within thei65 inches In the higher mountains, Precipitation occurs country are primarily those brought about by the In-on an almost equal number of days in all months, with fluences of topography, Therefore, these regionalsome variation from place to place. However, the larg- boundaries necessarily coincide with the major topoest amounts fall in summer, usually as afternoon showers, graphic features,with most places averaging 2 to 4 inches per month, The Western Hills and Plains Region consists ofWinter precipitation may persist all day or longer, uu- complex of hills and plains, bordered on the north, wes,ally as light rain or snow, and most locations average and south by a discontinuous chain of high hills an.I to 2 inches per month. In the higher mountains, the mountains, with only a few peaks rising above 4,amount of precipitation is considerably greater in all feet, The low-lying sections generally have less prmonths, and it falls mostly as snow during the colder ctpitation than the surrounding mountains, with mostmonths. Thundestorms occur on 3 to 8 days per month the region averaging 20 to 30 inches annually. Largat most places in May through August but are rare In amounts, ranging up to 50 inches, occur at the highOctober through March. Relative humidity is high in elevations. Snow is common throughout the region bthe early morning, ranging generally from 75% to 95%, is most frequent in the higher mountains, Afternoowith the highest humidities occurring most often in mid- are comfortably warm during summer at the lower elautumn through winter, Afternoon humidities are some- vations, but are cool in the mountains, Although wwhat lower, ranging from about 50% to 90%, with the ters are fairly cold, mean daily minimums are abolowest values occurring moit often in mldspring through 200F, except in the motintains, Cloudiness is extensi.,ummer. In general, cloudiness is extensive, averaging and is slightly greater in parts of this region than in tI

about 60% to 90% in wir.ter and 40% to 75% In sum- rest of the cmuntry.mer. Low ceilings in the low-lying areas are quite fre- The Eastern Lowlands Region consists primarilyquent in winter but seldom occur in summer. In the flat to rolling plains and low hills. This region generamountains, however, low ceilings are frequent through- has less precipitation than the mountainous sectionsout the year, and clouds often obscure the mountain the other regions; mean precipitation is between 20

UNCLASIP"M

30 inches annually. Snow is less frequent and does not (June through August), and autumn (Septemberremain on the ground as long as in the mountains, through November).Temperatures are similar to those in the low-lying sec. ctions of the Western Hills and Plains Region. Cloudi- . Climatic controlsness is extensive, but is tiomewhat less than in the other The primary factors determining the climate of Czech-regions, particularly in summer. oslovakia are the semipermanent pressure systems that

The Eastern Mountains Region comprises primarily produce the large-scale atmospheric airflow patterns, the

the mountains Prd hills of the Carpathian Mountains, migratory pressure systems and fronts, the various air

some of which are highly dissected and rugged and masses traversing the Area, and the mountainous ter-

have very steep slopes. These mountains are also pene- rain within and adjacent to the Area.

: trated by numerous river valleys and are bordered by a. GVNERAL CIRCULATION - Surface pressure under-low, dissected hills. Several ranges exceed 3,000 feet, goes marked seasonal variations over the Asian landmasswith peaks above 5,000 feet. The highest peaks, located to the east of Czechoslovakia and the Atlantic Ocean toin the north, range from about 8,500 to 8,700 feet. The the west, thereby developing separate large-scale semi-differences in climate between the mountains and low- permanent pressure systems. These systems-the Si-lands of the Area are largely the result of elevation, berian high, the Icelandic low, and the Azores high-Therefore, much of this region has generally more are largely responsible for the general eoculation overabundant and more frequent precipitation, cooler tem- the Area, Finuss 1 shows the mean sea-level pressureperatures, more cloudiness, and a greater frequency of distribution and general surface airflow patterns for thethunderstorms than the rest of the country. Mean an- months of January and July.nual precipitation ranges between about 25 and 65 The Siberian high begins forming in September, when

Inches, Snow is more frequent, heavier, and remains cold outbreaks of air from the polar regions stagnateon the ground longer than in the lowlands, The higher over central and eastern U,S,S.R. The high is firmly es-mountain peaks are snow covered the year round. Tern- tablished by the end of October and reaches its mai-peratures are seldom very high in summer, and winters mum intensity in December or January, Although theare somewhat colder than in the lowlands of the other mean position of the western ridge of this high extendsregions. Cloudiness is extensive throughout the year, over eastern Europe, at ti,nes it recedes eastward, al-with cloud decks at times below the mountain peaks, lowing warmer air from the west to dominate all of

The standard Northern Hemisphere seasons are used Europe. Conversely, the ridge occasionally extendsthroughout this Section: winter (December through west of its mean position, bringing in extremely coldFebruary), spring (March through May), summev air from Asia. It sometimes breaks off as a separate

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FIG(-tURYF 1. MEAN HIEA-LXVICI, Pa'm'ssuI1 (MILAZIAUS) AND (OKNKAUZIJ SUnlFAMI AIFLOW, JAN-

VARY AND JULY

2-

ONCLASSIED

cell and can dominate most of the European continent, em Europe and the U.S.S.R, Aloft, the circulation'Ihe coldest temperatures of the year are usually a re- around the low tends to bring from the south relativelysuilt of the westward extension, The Siberian high is warm, moist air, which is lifted over the westward-mov-replaced during summer by the Asiatic low, which has ing polar air, with resultant widespread cloudiness andlittle effect on the climate of Czechoslovakia. precipitation, Cyclogenesis will usually continue in the

The Icelandic low, most intense in winter when It is vicinity of northern Italy or the Adriatic Sea as longcentered just west of Iceland, strongly affects the cli- as the cold air is moving into the Mediterranean. Suchmate, The circulation around the low brings cold marl- situations frequently last foK several days, with the low-time air into Europe, producing extensive cloudiness pressure centers normally moving eastward or south-and precipitation for prolonged periods of time during eastward. However, they occasionally move to thethe colder months. During summer, the low is weak northeast, with a consequent increase in the cloudinessand west of its winter position and generally does not and the intensity of precipitation over Czechoslovakia,affect eastern Europe. Mediterranean lows occur generally in autumn through

The Azores high is strongest in summer, when it has spring, but are most intense during the winter months.a pronounced eastward ridge that completely dominates They are uncommon during summer.most ot . .. - and results In a weak westerly flow of At times throughout the year, small waves form on amaritime ah he Area, This ridge of high pres. stationary frout in western Europe and move eastwardsure tends to . , most of the migratory lows and along the front, They do not normally become major.associated frontal s).,ems moving into Europe, mainly lows but cause a lowering of ceiling and visibility inbecause these systems are relatively weak at this time the immediate locale,of year. During winter, the eastern extension of the (2) Anticyclones - Throughout the year, mi-Azores high is farther south, over Spain, but on occasion gratory highs move into eastern Europe from the welt,.it extends eastward and northeastward, bringing milder but they are generally of short duration except duringweather to Czechoslovakia, the summer months, Primarily during the colder

h. M5O1~ATanY 'olussunz, Ss5TaM5 AhND FBohNr months, more intense highs from the east or northeast(1) Extrotro cal y MMoes -A F Ou M 2 depiete will move into Europe and on rare occasions may per-.

the principal tracks of cyclonic storms for January, April, sist for several days or weeks, Generally clear, coldJuly, and October, Extratropical cyclones that infr- weather often accompanies these highs, but when over-once this Area are of two general classes, the Atlantic running of' warmer moist air from the North Atlantic.'lows and the Mediterranean lows, or Meditvrranean occurs, extensive cloudiness and pre-

Atlantic lows moving across northern Europe Are most cipitation usually reoult.

frequent in autumn through spring, Fronts extending (3) Frotit - The movement of fronts intosouthward from these lows sweep across western Europe, Czechoslovakia and the associated weather are controlledofrequently bringing low clouds and precipitation during not oniy by the location and strength of the Siberian

fhrpaentl bringionlcld thd prptlations deur high in winter and the Azores high in summer but also,rotheir ssage. Occan, toe Atatows parito by the Alps and the mountains in and around Czeeho-from their normnal track and move southeastward into slvka rnsfeunl oe inweten duropcentral Europe, or a low-pressure cell may develop off slovakia, Fronts frequently move into western Europe

in all seasons of the year but are most Ines urnthe Atlantic coast of Spain or France and move east-'i* J ward or northeastward across Europe. These lows of- cloudiness and precipitation. t he przone widespof fronta

ten extend to great heights, and the center of low pres. cethdins s ual arro u t r nt,sure may cross directly over Czechoslovakia, causing a weather in summer is usually narrow but turbulent, witperiod of extremely changeable weather, Summer rapid elearing behind the front.storms are fewer and less intense than those of the other During the colder months, many of the fronts sweep".seasons. lng across western Europe become stationary in east.,

The Mediterranean Sea area has a relatively high ern Europe or go aloft over the much colder Siberianfrequency of eyclogenesis (the formation or ntensia- high. The Alps, the mountains in and around Czeoho.

tion of low-pressure systems), Some lows enter this re- slovakla, and the Siberian high are all instrumentalgion from the Atlantic and intensify, but others originate retarding or diverting the normal eastward movement

of these fronts. However, the cold air behind the",here, The air over the Mediterranean Sea is kept quite fronts often flows through the valleys and large gaps inwarm by the relatively warm surface of the water, At mountains and spreads over the low plains, The frontstimes in the colder months, cold air flows southward out in or near Czechoslovakia are often interrelated wiof Europe and comes in contact with this warmer air, the fronts associated with the Mediterranean lowdeveloping a low-pressure cell over the Gulf of Genoa, Much of the time, weather inaps of Europe shownorthern Italy, or the Adriatic Sea, This low-pressure aggregation of complex frontal systems, especially dcell, in conjunction with the Siberian high to the north. lug spring and autumn,east, is an important contributing factor to thle climate During the warmer months, frontal systems movinof Czechoslovakia, At the surface, the circulation into western Europe are much less intense and genaround the high brings cold air into the Area fron east- ally become weak, stationary, and eventually dissipa

UNC[ASSIFM, ,, t,, . ,L... ., [I

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SE~COND)ARY TRACK ...

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LIFMhI. I .PRN I A l ItC N O CY L IC S R

near the Area. The Azores high, which extends well is cooler than the landmass over which it passes, after-into Europe, is an effective barrier to most frontal sys- noon showers and thunderstorms are fairly frequent.tems, However, on occasion a strong front moves Another air mass that may influence Czechoslovakia oc-through from the north or northwest and results in easionally during the summor months is tropical con-cloudiness and precipitation patterns similar to those of tinental air from the east; it brings hot, dry, and almostthe cooler months. cloudless weather,

c. Anm MASSES - Czechoslovakia lies on the border d. ToPocInAlJiIC INFI,UENCES - Czechoslovakia, situ-between zones controlled by several different air masses ated in the Sudeten and Carpathian Mountains of cen-and as a result is affected by each of them, In many tral Europe, is bordered on almost all sides by moun-cases the origin of an air mass may be difficult to de- tain ranges, several of which extend far within itstermine because much mixing and modification has borders, These mountains strongly affect the climate oftaken place before it reaches the country. the Area,

During the winter months, both moist air from the In winter, the effects of the mountain systems of cen-

Atlantic Ocean and the Mediterranean Sea and dry air tral and southern Europe become very important, as the

from eastern Europe and the US,S,R, affect the Area, colder air masses are normally shallow and must move

However, the most frequent air mass over western around such obstacles. In controlling to some extent

Europe is polar maritime air that originates in the the course that these cold air masses follow, the moun-

North Atlantic, During the approach of winter, when tan ranges also control somewhat the development of

the ground is still warm and much heat is still being the low-pressure systems in the Mediterranean, This

received from the sun, these moist air masses are rap. channeling effect is first noticeable when the cold al,

idly modified in crossing Europe, By the time they masses move to the northern side of the Alps. Part of

reach Czechoslovakia, they are not very different from the cold air will move southward through the valley of

the air which they replace, and any adverse weather the Rh6ne river or through the gap between the west-

associated with their movement is primarily that occur- ern end of the Alps and the eastern end of the Spanish

ring In the frontal zone between the two air masses. Pyrenees, thereby setting up the conditions necessarySuch periods of adverse weather are normally of short for the development of low pressure.

duration, As winter draws near and the insolation from As spring approaches and the insolation from the sun

the sun lessens, the polar maritime air masses are not increases, the ground gradually warms, Hence, the air

so greatly modified in passing over the land, and they masses moving in from the west are more greatly modi-

remain cold and fairly shallow, giving prolonged periods fled in crossing Europe, During.the summer months,of cloudiness and precipitation. Over eastern Europe, most of Europe is under the induence of the Azores

the most frequent air mass in winter is polar continental high, and the resulting flow of moist air is generally

air, which originates in the Siberian high. At times, a deeper and less stable than in winter, Therefore, the

Mediterranean low-pressure cell in conjunction with the effect of the mountain ranges on the broad-scale fea-Siberian high causes an influx of polar continental air tures is at a minimum, although terrain still affects local

from the east, so that a cold, fairly dry air mass is domi- weather significantly,nant over western Europe for a short period. In this Considerable differences in the climate often exist

air mass, when it is of sufficient depth, cloudiness is between mountain tops and adjoining lowlands and

slight, even along the slopes of mountains, but there is also hetween the windward and leeward sides of thefrequent fog, smoke, and haze. However, because the mountains, In general, air which moves up the wind-

cold air is relatively shallow, cloudiness and precipita- ward side of the mountain range cools, sometimes form-

tion are usually widespread, when there is overrunning ing clouds, and if the air contains enough moisture and

of warmer moist air from the south or west. Czecho- is lifted sufficiently, precipitation results, On the lee

slovakia, because of its central European location, is side, however, air moves downslope, dries out, and be-often affected in winter by a combination of these two comes warmer, The mountains also give rise to moun-

air masses, the polar continental air to the east and the tan and valley breezes and other special types of winds,

polar maritime air to the west. The configuration of the land surface also largely con.

One other air mass that affects Czechoslovakia, in trols the wind directions In mountainous sections.

autumn, winter, and spring, is tropical maritime air. 3. Special phenomenaThis air is brought over the Area by the circulation a, LOCAL WINDS - Because of the mountains thataround the Mediterranean lows, Most often it over- are in and around Czechoslovakia, various types of lo-runs colder air, but on occasion this air mass will be cally produced winds may occur, such as the foehn,found on the surface and results in vety mild tem. the fall wind, and the jet-effert wind.peratures. 'rho foehn Is a dry, warm, gusty wind that occurs

In general, the air masses of summer are unstable, when an air stream is forced over a mountain range,Most of the cloudiness is the result of convective ac- Through adiabatic compression of the air as it descendstivity. The most frequent air mass over the Area Is the lee slopes, the air becomes warmer and dryer be-modified polar maritime air brought in by the extension fore reaching the valley below. The foehn may be veryof the Azores high over Europe, Because this air mass effective dining winter in removing snow cover. In

1 .....i '1 i- rq.... I1'1 5

Czechoslovakia, the foehn occurs throughout the year During these high water periods, floods are common butbut is more vigorous and attains its greatest speeds are most severe in the plains. In the eastern half ofduring the colder six months of the ye, - Czechoslovakia, rivers periodically inundate the adjacent

A fall wind, known locally as a potake, occurs when sections, particularly along the Morava and Oder andvery cold air spills down the mountain slopes into the their tributaries. In the west, streams and rivers regu-valleys and, although warmed in its descent, remains larly overflow their banks in low-lying places, but thecolder than the surrounding air after it has reached the extent and duration of the flooding is generally muchvalley floor. The polake occurs most frequently in less than that in the east, Heavy thunderstorms or rain-spring, with secondary maximums at the beginning of showers may occasionally cause flash floods locally inautumn and in winter, and is usually associated with summer, but these are usually short lived,cold polar air. It has a tendency to persist, sometimesfor several days, and blows generally from the north- B. Weather and military operationseast, Strong wind speeds and gustiness are common; This Subsection is concerned with the effects of thea wind of 135 knots has been recorded in the Vysok6 meteorological elements upon military operations, whichTatry, the highest mountain range in Czechoslovakia, are here divided into three basic groups: air, air-ground,

Because of the rugged topography, parts of Czecho- and ground surface. Under each group are discussedslovakia are subjected to jet-effect winds, which are the weather elements primarily relevant to the operationscaused by the channeling of air through narrow moun- in that group. However, weather elements which aretain passes or canyons, resulting in increased wind considered most applicable to one basic group may alsospeeds, There are several such passes or canyons in the affect operations in others, In such oases, referenceArea, but the main one, known as the Moravian Gate, is should be made to the appropriate Subsection, Thesituated between the Sudeten and Carpathian Moun- meteorological information contained herein is organizedtains. During the colder months, air masses moving to highlight conditions that may be significant factors inthrough the gate tend to increase in speed, especially planning, Discussion of the effects of weather onat the narrowest part, resulting in strong northeasterly specific operations is not attempted, because the weatheror southwesterly winds, Wind speeds in excess of 55 factor in an operation is subject to change with theknots have been recorded, This funneling effect is also changing requirements of the operation itself,evident in the Moravian Gate during the summer, whenair masses moving from the west are channeled through 1. Air operationsthe gate and produce strong southwesterly winds, a, CLOUDINESS - FiOuim 3 depicts the mean annual

b, FLooDs -- Melting ice and snow cause high cloudiness in Czechoslovakia, and FIcuaE 27 shows meanwater to occur on most streams in March and April, monthly and annual 'lotndiness for a number of stations,and on the Danube in June; it lasts for 4 or 5 weeks. The data in both figures are based on observations at

-- 14 16i 18 20j

• '" " ' ' : • "' ""/" " " ' "LEGEND

' ;" "": ,::.tPERCENT.> 0

l'u~ung 3, MKiAN ANNUA CI (1OUOINE88 (%/)

U, -,3 I ... I

0700, 1400, and 2100 LST. Cloudiness is rather exten- associated with these systems are not influenced bysive over the Area; it averages about .55% to 75% an- diurnal changes to any great extent, although the bases.nually, with least cloudiness generally occurring in the of low clouds tend to be lowest at night. During the i,Eastern Lowlands, The cloudiest sections are the higher warni months of the year, cloudiness is mostly of tho'!elevations in the Western Hills and Plains, Except in convective type which builds up during the afternoon,the higher mountains, November, December, and Jann- often producing showers and in some cases thunder.ary are the cloudiest months; cloud cover averages about storms. By sundown, most cumulus and cumulonimbus70% to 90% in the Western Hills and Plains, 70% to clouds either dissipate or spread out into a layer of high80% in the Eastern Lowlands, and 60o to 80% in the stratocumulus or low altocumulus, Stratus clouds occurEastern Mountains, During this time, eastward moving primarily in the late night or early morning hours,fronts often result in rather prolonged periods of exten- The frequency of clear and cloudy conditions is also.sive cloudiness over parts of Czechoslovakia, and Medi- a good indicator of the cloud distribution over Czecho,terranean lows sometimes cause periods of several days slovakia and may be useful in planning various types,when clouds blanket the entire country, In the higher of air operations, Fiouna 29 shows the mean number"mountains, cloudiness is frequent, even when frontod of clear days (mean cloud cover less than 2-eighths), and.:systems are absent, and maximum cloudiness may occur Flaumum 30 gives the number of days with similar con-

: iat any time during the year, June through September is ditions at specified hours, FiOuin 31 presents the mean'the period of least cloudiness at most locations, with number of cloudy days (mean cloud cover greater than'amounts usually diminishing in the latter months, Dur- 6-eighths), and the frequency of cloudy conditions At.Ing this period mean cloudiness is about 40% to 60% in specified hours Is given in Fiouim 32, FiounH 5 is a,the Eastern Lowlands and about 45% to 75% in the graphic presentation of the frequency of days with spe-iWestern Hills and Plains and Eastern Mountains Regions. cified cloud amounts at 1300 LST. Clear days are notCloudiness is frequent during summer afternoons but Is frequent in Czechoslovakia, Considering the meanmostly of the convective type, and many of the mornings cloud cover for the entire day, 5 or less clear days perand the late evenings and nights may be comparatively month is the general rule throughout the Area exceptIfree of cloud, After September, cloudiness generally be- during August and September, when many stations re-comes more widespread, and by November the amount of port 6 to 9 clear days per month. In general, there';cloudiness has increased considorably. This rapid is a tendency for clear conditions to be most frequentchange from September to November is brought out in after midnight and least frequent around midday, with'Fium.; 4, which depicts mean cloudiness at 1300 LST, the largest diurnal variations in the warmer months.

The diurnal variaition in cloud amounts is not large Fixc~ur 30 shows clear conditions to be most frequdntover Czechoslovakia, as shown in Fiura 28, which gives at 0100 LST in spring through inidautumn, when theymean cloudiness at 4 hours of the day. The largest occur on about 10 to 20 days per month at most places..variations occur in April through September or October, l)uring the rest of the year, clear conditions at 0100,when most locations experince about 15% to 25% more LST usually occur on less than 10 days per month.'cloudiness during the daytime, particularly during the Clear skies are least frequent in the afternoon, withafternoon, than at night. Diurnal variations are usually generally little variation throughout the year. Although;smallest in November through January, when days aver- there are a few exceptions, clear skies at about 1300,age about 5% to 10% more cloudiness than nights. LST occur on less than 10 days in most months, the bestDuring this period, cloudiness is generally greatest in time of the year usually being late summer to mid.;

S' the carly morning, shortly after sunrise, autumn.During the colder months of the year, migratory lows Cloudy days occur most often in November through:

and frontal systems most strongly influence the cloud January, when skies may frequently he cloudy bothpatterns over the Area. Often associated with these night and day for fairly long periods. Considering the,lows and frontal systems are multilayers of altostratus, mean cloud cover for the entire day, most locations aver*!which thicken and lower as the center of the low ap- age about 15 to 20 cloudy days per month during thii,proaches. Precipitation falling out of these middle period. Cloudy days are least frequent, less than 10,clouds tends to saturate the air below, causing stratus per month at many places, in May through Septembr.'clouds to forrm, In the vicinity of fronts and low con- As shown in F icuutE 32, diurnal variations of cloudy con,ters, ninbostratus is common, and towering cumulus ditions are very small in the colder months, when cloud%may be imhedded in the oth(,r clouds. Cloud amounts ness Is extensive, For example, in November through

Itiuary most locations observe cloudy skies on abouNonr. Air operatios tire defined ws those oplerithtinm tiking 20 to 25 days per month at all of the specified hourslplace prmmiirily above the Iiictiomal inhlue ne of thesunrface ttrrahii on tntmospherlc circuhltion. Th1e moteoro- Diurnal variations are considerable during the warmelogical elemtents diseussed in this subsectit are these nonths because of the widespread cumulus activity towhich are (f primary inportmmce t) such operatitns tit the- afternoon and its dissipation after dark. Consehigh-level visial bomibing, radar bombieg, terial pho.-tograpihy, most types of aerial revoii1114s.smlCO, L1uld quently, cloudy skies aire observed least often near 010,lighter support and itterception, LST. occurring ge.ncrally on 10 to 15 days per month"

PftouvwFZYNI P*ISLAV P00. Le LOMNICK* T

00 w 0 o

6060 60 60 60

40 40- 40. 40 40

20o, 20 20 20

0~iu 0 i~VAUINCM(%)A 33 S.(u auirL&to~uFui~2i

and ~ ~ ~ ~ ~ JMAJAO mostJJ$ oftenJSO nea 1300J IST Acurn on1 o'5 vsbSiycdtnsar be do O n dy

(lays1 P1mnh e otha us lcsCetan yps fai oertin, uc a vsta bmb ~ ''wNt~t8oHs N TJf101,'CI -Th7rr

lag nd isua orphoograhicrecnnaisane, rquie sormsarerar In ctoer trouh Mrchbutwhea obntono erycla ke adaeut si- te d cu hy r salyascae wtTrna

facevisbiliy fr bet rsult, V~uiw33 ivesthemea

numurof ay wih lou cvereqalto r costhn sstms.li Ma trogh ugstthndestrmsar f

di0on i00 most 100mln tngt iolutl er00 ~ .h. 1 .m.~.O to emaonntinmLSi ndpig hog odu60n hnI cur wn' sf tiidsto n Te(b usedtostutti

theda i thofgtnt this p1rio and atcurllnhours5 tluin a2 viiity thundertiorm ay. ob hred oen csnumher of daysdayile r mdout he. er hs aoal lu n ler month tith othundestom per tblrfr

8 etiitpso i prtos ic svsilbtu - 1.T UDISONSAD -un u.ct - T udr

PtAUI/AUZYNI PIMIAY PMOO AC OMIC$li

20 -30 30 3-30

20 20 20. 20 201

0 to 10 0o 10

0 MM )A0 0 0# JAO0FAJ 5NPA J0PAJAO JFMAMJIASON ) JIMANJJA.ON PAI5OJMMJIN

~312

Iic~~~~~t'a ~ ~ ~ ~ : 4.MA UIII )'lV WS P~tt0)'tI .11W 0Y0A 10 SV ~tabuar I&It slt, Founs 30and35.

* n uuis: 4.Tunestrm omtme ccr tnih. ~ aaonhilad n h Itnstyad etia

hut~~~~~~~~~~~~~~~~~~~~1 in;nrlte'ocrms fe neryo ia-vlpieto iudrtrsArentaaial3l

S tesion. I'hudertors ocurrog fte midigh ar evr, te tps f thndestom coudsproabl re4otlkl nteEsen onanwt h oet 0(X etvr)fe admyetn uhhge

frequency~~~~~~~~~~~~~~O Jrud14r~1 h Ae hn ie.hili rbbea oh h ufc n lfThroghot .' th moe sver stomsThudertorm ar usall

(lestrm ae os te(I~ntinth t~tntiil~)5se~oS, inictin f evretubuene n lodsan o i

espeialy i th Easers Momtans, nd eas frquet (1ateto evee tubulncein heirimmdiae vc22

in. the southwstern sectionsof the Eastern Lliands 21 CLOwD r tCOinVu ulsadERnloinuscand atmany hlLI~sin theWesten I hils3an Pliito1ICL&U are nomalyvsbe n icatcnuulyThe aount f actvity t anyoiw lcale dnd toUQ A naigt them,

large ~ ~ ~ ~ ~ ~ ~ ~ ~ MRV mesr nwehrtelcl sepoe oo o idwihmv oN teslps f

%hltrc fro 30-c prviigwns3als0r rqunl conan yvoetd

20g 02

NXEN

* 'Al

S 'V

i01nout &. MEAN ANNUAL t4UMUIIk OF T1IUNDIMS0T"M'

dirafts, and aircraft engaged in very low-lov~l operations time. Speed% in excess of 150 knots tire rare, occurring

should use etreme caution tIn mountainouis terrain. primarily it autun and winter between 30,000 and

Strong winds blowing across it mountain barrier may 45,00W feet.

* distort the, airflow for several thousand feet above and in d. UPPER-AnI TIOMI'EIIATURES AND AIflOP.AT ICING0

the lee of the miountain and tit times produce severe The inean monthly upper-air temperture, pressure, and

* turbulence, Therefore, the lot! side of the monotiiq tropopause height for Prixgue/ Ruzyn6 are shown it

a particularly dangerous area for aircraft, Light to 'icunE 9 and tire representative of all of Czevhoslovakia.

moderate turbulence is found tin the free air tit low levels Thejj 81asonail variation in the invan height of the con.

throughout the year. In smumer, it result,% from surf ace stant-prossurv levels is rather small in the lower purt of

heating, and at other times it may be, caused by strong the troposphere but Increases with Increasing .Jtitude,

low-level winds. sixch t the jet-effect wind. Clear-air becomning about 500 feot at 700 millibars, 1,600 feet at

turbulence, resulting from strong winds near the tropo- 300 illibars, and 2,000 feet or more at 150 millibars

paulse, may also be present tit times. and above. The greatest seasonal temperature variation

c. Ui-mw-iia wImi) - Thel tipper-air wind pattern is near the suirface, with about 20 centigrade (Celsius)

over Czechoslovakia is re~presened by the wind rosws degrees between the hottest and coldest months. This

it Viouixti 7 and 8. Throughouit the year, westerly variationi decreases with height to about 10 degrees at

winds prevail ait nearly all altitu'des4 between abou(At 5,000 30,0M0 feet and about 5 degrees or less at 45,000) feet

and 55,0(X) feet, althuugh there is consitlerable variation and above. At altitudes below abouit 20,000 to 25,000

within the wvest q1uadrant tit most levels. Tin general, feet, temnperatures are suibjeet to considerable deviation

winds aire wiomewhat stronger tin winter than tin Nitinincr. fromn the mean. At higher altitudes they aire somewhat

Wind spoeds greater than 150 knots aire infrequent below ioe tbe

10,00) feet, occurring about 5% to 10% of the, time dur- mr tbe

ing the winter and less thani 5% of the time duiring the Thu mnean height of the tropopauise varies fromn about

remainde(h.r of the year, Above 10,MX) feet, speeds inl- MAX) feet it, January and February to about 39,000

crease wvith height and arte sti,0ngest genlerally between, feet ill uly. 'The meanl height of the freezing level

30,0M) and 40,00 feevt sxtrcioely strong winds tire not varies from near the stirface in lDevember through Feb.

frequent tit anly level. Wind speeds of 75 kjluts. or ruary to about 12,(X) foot iii July and August, Because

greater are! mo~st liely tin iumnti mnd witer between of the greatly contrasting air masses that affect Czecho.

.30,000 and 40,000 feet, ocurring nbotit 10%/ to 15% slovakia, however, day-to-day variations of several thou-

of the( time. speeds ill exvess of 10M knots occuir only sand feet ill the actual height of the freezing level may

M0/ or leis o~f the timie exceilt between 30,000 and our in autuimn, witer, and spring. At times, the over-

315,000X feet tin winter, whenl they occur about 5%v of the running of warm air over cold air during the colder

1(0

UPPER AIR WIND ROSES

PRAGUE/RUZYNt

ELEVATIONI DEC JAN FER MAR-APH-MAY JUN JUL AUG SEP-OCT.NOV

53,300

36.80 ins 216 -

196 600 667 so5

/Am

30.200

23,100

1026 1041 14 13

l1bfi 1232 1355

1562 1405

4.800 0 0 92 W7

1183 1501 1679 1506

WINE) SP~EED SCALE NUMBER or OBSERVATIONS PERCENTAUE FREQ~UENCY SCALIINIIICAIE3 BELOW EACH ROSE M 7 7 7

10 0 10 20 10 40 W0 60

VNicuI5 7, uppici-Azf WIND lRoSESt, PAAGUE/JRUZYNJ

UPPER AIR WIND ROSES

BUDAPEST/L(RINC, HUNGARY

I It VATION Ot C IAN I 111 MAR API MAY JUN .1111 AUG SEP-OCT NOVllb~l)

53.400

549 zo1

3B.800 -

76816 876 83U

30.209D 0R

RV7 918 l10(96

884 95b 99' lll0

1O.400 * I 01

921103 1132' 106

13.900 of 0

1028 1210 1301 1160

4.800 0

1 1 A 14 1 3 1 .0 13 6 2

WIND SPEED SCALL NUMBEIR O OHSLrIVAtII)N5 PERCENTAOC EtRQULNCY SCALE

10 0 10 20 30 40 o 60

'CALM I9110 112121110 49 107%1 11KNOTS9 1 1 I1'iI ~

IiEti(6 S. 0111IF.11-AIII WIND) Hl08H8, FIVIIAIOCT/1.61INC, HUNIAIV

12

.PRAGUE RUZYN~ 2. Air-ground operations60.PA° \U Z.t a. Low cLOuDNrss AND CmiLt'NS - In most mill-

" u tary operations that involve the use of aircraft at rela-\I O MIR / tively low levels the height of the base of the clouds

above the terrain is very important, especially in the"* -_........_____mountainous sections, Fiuim 10 depicts the fro..

I quencies of ceilings less than 656 feet and less thanI o 1,968 feet in the early afternoon, while Fcuny 35 and10 _. ._ 36 give tabular data for 4 hours of the day.

I Ceilings are less than 656 feet much more often in

_0 200 -, the higher mountains than at the lower elevations. throughout the year, Most locations at the lower eleva-

, -....,<:;xw .. . . ,, tions experience low ceilings most often in late autumn.r., .'"' through early spring, when the 6-hourly observations

CS. I.0 C show frequencies of 10% to 25%, Low ceilings are... observed least often in late spring through early autumn,!ao,. . -- occurring less than 5% of the time except near sun-

* . .. -. rise, when they occur as often as 10% to 15%o of the._ - - ./ .o'.. time at some places, Throughout the yeor, low ceilings

2 .... are generally most frequent near sunrise and least

S" frequent in the afternoon or early evening at the lower1, . - elevations, In the mountains, ceilings are often low inUP .all seasons. At the higher elevations the frequencies of

ceilings below 658 feet range from about 40% to 80%,depending on the season, the time of day, and the

'. ,..-.. height of the station. In general, however, low ceilings/ occur more frequently in the cold months than in the-- warm months, and the maximum occurrence Is in the-. .... \ .1. afternoon. The major exception to this general pattern

U UNO SUR 6E ELEVATION27 FEET\ is in the most rugged parts of the Eastern Mountains.... , Ilere, this seasonal trend is reversed, particularly in theJAN FEO MAR APH MAY JUN JUL. AUG SEP OCT NOV DEC JAN afternoon, when low ceilings are observed about 25%

of the time in winter and 65% to 85% of the time inFicus's 9. MZAN MOnITLY UPPK.AIR Th54I'KINATURIV, AND P, 1 snummor.

sUns ,'r Palclua/Huzvsi Ceilings below 1,988 feet follow a pattern very similar

months may produce more than one freezing level, if to that of low ceilings but are considerably more fre.te on(itit in the lowlands. The lower elevations have.the overrunning air is warner than 0 C. ceilings below 1,96I8 feet most often in late autumn

One of the chief effects of upper-air temperature Oil through early spring, when such ceilings are reportedair operations is that, under certain synoptic conditions, on 20% to 60% of the observations, and least often inicing on aircraft might become a hazard, In general, late spring through early autumn, when they are re-temperatures between OC. and -20'C. tire normally ported on less than 25% of the observations. However,regarded as the most critical. Because air that is colder the 6-hourly observations at some of the lower eleva-than -20'C. usually contains very little moisture, only tions in the northwestern part of the Western Hills andlight rime ice will he encountered. In winter, when Plains Region show frequencies of as much as 85% instratus-type clouds predominate and rime ice is the usual the colder months and 50% in the warmer months,type of ice encountered, icing conditions are not often Throughout the Area, diurnal variations are not pro-dangerous to aircraft unless sustained flight ir madethrough the clouds. However, at those times whon Ncmn Air.ground operations Are defined am those operationsMediterranean lows are active, dangerous icing condi- tatking place within the friction layer above the earth'stions may occur over the whole country, This s caused surfsc or those primarily Influenced by the meteoro.

legicml conditions existing within that layer. The me-by the increased moisture brought in from the south, teorologiwa eletient dLcussed in this Subsection are thosewith thicker cloud layers and the possibility of cumulo- which are of prnary inportanwe to much ofwrationsnimbus clouds being inimlded In the stratus layers, es- is parachute drops, chemical and biological warfare,

tactical s pport, low-level rownnalmance, and air rescue.pecially fi spring, In summer, towering cumulus and 'rle success or failure of many of these operations may

cumulonimbus clouds contain dangerous icing condi- also del.end to a large degree upon the behavior of

tions, but these clouds can he seen and usually avoided etleddients ove the fritoh layer or near the oudae.A detailed diseusion of iuch eleniats neay he found in

unless associated with frontal systems, Subectili B, I sid B, 3,

i _ i m ... ,. . . . . ...... .

NAOuIPmufNt PbSYSLAV PPADV. SLIAe LOI4NICKI ITl0t00 100

20 20- 20. 20

IPMAMjfAS( JiMAMJJASON JPMAMJJA$OND JPMAJJ SON1

14 IH,: ' - .: ..- , . ..... .........

N , 40 |.,It

44

t! 1

IIIS

iKI So 6VICI WlO/ IANY 0A0ISIAVANiVARKA OSYNAVA KOSII100 10D 100 PMM 0

60 6 0 06

40 40 40, 40 t40

';t 1 W 0 2

IPMAMIJASOND J MMAMJIAN A JAMJAON MAMJAONI

FRlIE u0, I0'IC) IMKNTA' ItUt. r1(Q NCY OF RVK('IPI) (P1I INPI AT 1300 LST. (For htbitlar datate Fimim( .35 autt I10,

notinued tat the lower ,letvations, but in general, eilings Fict;uwi 37 shows in titbular form the mean numberthis low r, most fr(qumt oter sunrise and leatst frt- of days with low cloud cover equal to or less that. 2-qtent in the afternoon or etirly evening. The higher eighths tt 4 hours of the dty. Low cloud cover isinomilthis over tile Area have ceilings below , 968 feet definetd ts the lowest eloud layer reported, excludingaboot 25/o to &WOo of the1 tim1e, the frequency varying cirriform clouds, Skies with 2-eighths cloud cover orwith the M.'llsOtl, time of (ily, id levation., Il gelnerl, less, considering only the cloudiness tt the lower levels,these ceilings occnrlmost often during the coldehr months may be favornble for many types of air-ground opera-and lst ofittl hi the walrme, r monltis dtlritg till hours tions, Generally, conditions tire most often favorableof the itay, (,'xcpt the awfteroon, when this stasoial in the Eastern Lowlands and least often favorable intrend is revvirsed. Afternoon is ustially the timi' of the Western lills and P'lins, Clear skies tt low levelsmaxhnmun o'utrrvn'v at these higher elevattions, ar' most frequent in late spring through early atttmn,14,-

.~. .i

occurring on about 15 to 25 days per month except in 0700 LST and 1300 LST, low visihblities aire commonthe afternoons, when they occur less frequently, Clear Many sections of the country, Visibility is mnure oftskies are less frequent in late autumrn and winter, restricted in the mountainous sections than in the lowusnially occurring on less than 15 days per month during lad, n oriIvibityiportfom butiall hours. D~iurnally, clear conditions occur most often lautumn thougheal singit d is o est from ao ii,'

near midnight at inost locations and least often in the aumntrghelysigadisbtfom !,.aft ernoon. Dato concerning 6-eighths or mnore low midspring through early autumn. Diurnally, visibilicloudiness aire presented in lr1euiwE 38. These dIata may is wost nlear sunrise and best in the afternoon anbe useful in planning certain types of air-ground early evening, except at some higher mountain locatiooperations, where the worst conditions occur in the afternoon dur

b. VlIaxLrrv - As shown by FicunE 11, which the warmer months. FIGuMP.8 39 through 41 showdepicts the frequency of visibility less ,than 2 miles at tabular form the frequency of visibility less than %

MAUI0~ PAMMSAV PIU WMd LoW#4CIl 111

~~116060t 60

40 40 40 40 4

10 20 t

1 PMAMJ JA$ONOI JPMA AOND JPMAMJIAIONDJ 07PMAMJ JA1ONOj J PMAAJ JAIONOJ

4)

II

49 4PAJAOb PAM1)Nj JNM AOD PAJACND JMMJ.O

* _ _ _ __ _ _ _ __ _ _ _ _

Fm m~i iiPt ( ~N A(k IImKUIN( CVvisonmm <2 MII(MA 8IiI(IallI II()UNM* I

tohularSIO REtt ON'.un 4

less than 2 miles, and less than 6 miles at 4 hours of in the morning, Industrial sections normally have morethe day. dense fog than sections not as polluted, because the

In the Western Hills and Plains, most of the lower smoke particles act as nuclei for the formation of fog.elevations record visibilities below % mile generally Fog is appreciably more frequent in winter than inless than 5% of the time during the warmer months, summer at most places and more frequent in theand as much as 20% to 25% at some locations during mountainous sections than in the lowlands. Many loca-the colder months. At the higher elevations, visibilities tions experience dense fog (visibility less than % mile)less than % mile are reported on about 30% to 500 on about 5 to 10 days per month in midautumn throughof the observations during summer and about 55% to early spring and 1 to 3 days in summer, However,80% of the observations during winter. In the Eastern fog is considerably more frequent at a few places,Lowlands, low visibilities are rare in summer and occur particularly at some higher elevations, where it occurs,less than about 15% of the time in late autumn and on about 10 to 25 days per month throughout the year.winter, the period when visibilities are poorest, In the Precipitation, especially in the form of snow, can alsoEastern Mountains, low visibilities occur much more be expected to reduce visibility to less than % mile.frequently at high elevations than they do at low eleva. c. COMBINED CEILINO AND vismmmry -, Althoughtions, primarily because many mountains are often ceiling and visibility have their individual effects onshrouded by clouds. At the lower elevations, low visi- military operations, for many purposes it may bebilities follow much the same pattern as they do in the advantageous to have data showing -the simultaneousEastern Lowlands except that they occur considerably occurrence of various ceilings and visibilities, This typemore often during the night and. early morning, At the of data is presented graphically in Fiouna 12 for 1300higher locations, however, poor visibilities are common LST and in tabulur form for 4 hours of the day inthroughout the year; the frequency of occurrence is FiounE 44. The criteria of ceiling equal to or greaterabout 25% to 75%, depending on the season, time of than 084 feet with visibility equal to or greater thanday, and elevation. 2 miles are not necessarily adequate for low-level

Visibilities less than 2 miles and less than 6 miles flight over very rough terrain but may be regarded asfollow much the same diurnal, seasonal, and regional adequate in other areas. As shown in both figures,variations as those less than % mile but are much more flying conditions are much better during the, warmerfrequent. During the colder months, the 6-hourly months than in the colder months, and in general theobservations show visibilities less than 2 miles ap- morning hours in all seasons have the worst conditions.proximately 20% to as much as 70% of the time in In some mountain sections, however, there are notablelowland sections of the Area, 50% to 80% of the time at exceptions to this general rule,mountain locations in the Western Hills and Plains, In winter, the afternoon or early evening hours offerand 25% to 55% of the time at the hightr elevations the most favorable low-level flight conditions at mostof the Eastern Mountains. During the warmer months, places, whereas a few locations experience them latevisibilities are below 2% miles less than 5% of the time at night, During this time, ceilings are at least 984 feetover most of the lowlands of the Area except near sun- and visibilities are at least 2% miles generally 50% torise when they occur about 10% to 30% of the time, 75% of the time, although a few locations in theThe frequencies are 25% to 55% at most mountain Western Hills and Plains have these conditions less than

• locations except at the highest elevations in the Eastern 40% of the time. In summer, the best flying conditionsMountains, where they are its much as 80% during the are most frequent in the afternoon or early evening overafternoon. Visibilities are froquently less than 6 miles, the lowland sections throughout the Area; they occurespecially from midautumn through early spring, when more than 95% of the time, The higher mountainsthey occur more than 60% of the time at many loca- in the Western Hills and Plains experience favorabletions throughout the country, During the summer, conditions most often in the evening, when they occurvisibilities improve somewhat, but at night and in the about 50% to 60% of the time, At the higher eleva-early morning, they are below 6 miles more than 40% tions of the Eastern Mountains, ceilings are most oftenof the time at many locations in the west and at a few 984 feet or greater and visibilities 2 miles or more atlocations in the east. night and in the early morning, occurring about 50%

The chiof restrictions to visibility are fog, smoke, and to 75% of the timn.haze. Fiocuit 42 gives information concerning the num- d. SuivnAct, . NDs - Fiornw 66 is seasonal surfacebr of days with dense fog (visibility less than % mile), wind roses for selected locations throughout the coun-and Fmcumv. 43 provides information on the occurrence try. They are not necessarily representative of nearbyof haze and smoke at 4 specified hours of the day, locations, because of the rugged terrain, Winds at theAs might be expected, these data show the most fre. surface arv greatly deflected and often channeled byquent restrictions to visibility occur in the morning mountains and valleys. This channeling effect is bornehours at most locations, At times in winter, tempera- out in the wind roses at several places, primarilyture inversions restrict smoke and other industrial Kolice, Pforov, and Ostrava. West of the Carpathianpollution to the lower levels. This results in poor vis. Mountains, westerly winds are predominant and areihilities which may last till day but tire usually worst most pronounced during the summer months. In the

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developed in calm, clear weather, and therefore are differences in elevation between the mountains andmost prevalent in summer. the lowlands. Additional information on temperatures

Gale-force winds (winds equal to or greater than 28 is provided in FIGURE 15, which shows the mean dailyknots) are not frequent except in the mountains, The maximum and minimum temperatures and the highestdata in Fov.unr 45 show that gales occur at low eleva- and lowest observed temperatures in each month fortions generally on less than 5 days annually, At the selected locations. FiGuRms 49 through 52 give this samehigher mountain locations in the wcst, gal," occur on temperature information in tabular form for a largerabout 45 to 130 days annually; in the mountains of the number of stations, As shown by these data, tempera-east, they occur on 15 to 20 days annually, They are tures vary little from one location to another in theusually most frequent during the colder months through- lowland sections but decrease appreciably at the higherout the Area, elevations. With rare exceptions, January is the coldest

A consideration of surface winds in conjunction with month and July the warmest,other elements is necessary in determining the frequency During summer, the southern part of the Easternof favorable conditions for some military operations. Lowlands is generally the warmest part of the Area,Information considered useful for planning incendiary and the highest elevations in the Eastern Mountainsbombing, chemical warfare, and parachute operations comprise the coldest part. Mean daily maximum tern-is supplied in FiwurEs 46 through 48 for several locations peratures range mostly in the 70's (*F.) at all lowlandthroughout the Aroa. locations. With an increase in elevation, maximum tern-

. STAIILITY AND LOW-LEVEL TEMPERATU NVER- peratures drop to the low and middle 0's and are ase, -TThe normal or standard temperature structure low as the low 40's at the highest elevations in the

SoNS there i stcndtrd thereratea and Carpathian Mountains, Mean daily minimum tempera-of tle atmosphere is such that there is a steady and tures form a similar regional pattern; they range be-nearly uniform decrease in temperature with height from tween about 450 F, and 60OF. in the lowlands, drop to

the surface of the earth to the tropopause. When there the low 40's as the elevation increases, and are near

is a rapid or greater than normal decrease in tempera- freezing at the highest elevations a

ture through a layer, the air within this layer is said to ring wnte teerat i an t h

be unstable, When the temperature decrease through During winter, temperature variations between the

a layer is loss than normal, the air is said to be stable, lower elevations mrHd the mountains are somewhat

In some cases the temperature actually increases through

a layer, When this occurs, a temperature inversion peratures at this time of year may occur in the low sec-

exists. The cold air masses of winter become quite tions of the Western Hills and Plains as well as in the

stable, especially when the air is cooled more rapidly southern part of the Eastern Lowlands. As in summer,

near the surface than aloft, The inversion may be near the highest paits of the Eastern Mountains are the

the surface or It may extend to 2,000 or 3,000 feet, de- coldest, Mean daily maximum temperatures range

pending on how long the air mass persists and the ex- mostly in the 30's at the lower elevations and decreaset goerto the low teens at the highest elevations, Mean dailytent of nighttime cooling, Smoke and other Iontami- minimum temperatures are mostly in the upper teens, ant.% in the air arc usually trapped below the inversion, and 20's fn the low-lying sections but are as low as 5F,causing reduced visibility. Strong temperature inver-sos and stable air are most frequent in winter, although at the highest elevations in the Eastern Mountains,

temperature inversions may also occur before sunrise The mean daily ranges (the difference between thein summer, If sufficient moisture is present, fog may mean daily maximum and minimum temperatures) areform within the stable air, larger in summer than in winter, The range in summer

Unstable air is prevalent during summer afternoons varies from about 15 to 25 Fahrenheit degrees except

and evenings when towering cumulus or thunderstorms in the higher mountains, where the range is only about

are present, The intensity of rain showers and thun- 1.0 to 15 degrees. During winter, the range varies from

derstorms will often reveal the degree of instability, about 5 to 15 Fahrenheit degrees, with the lowest ranges

During the winter months, the air 6s unstable after a occurring in the higher mountains,* cold front passes through the Area, but only for a short Although Czechoslovakia ha a generally temperate

period of time, after which the lower layers become climate, temperatures occasionally vary greatly from thestable, average conditions. Extreme maximum temperatures

3. Ground surface operations of 100*F. or more are rare, although most places have

a, TyMI'EnATUI, - Cvechoslovakia has a generally Ncrm Ground surface operations ame defined as those opera-temperate climate; summers are relatively mild and tions taking place primarily at or very near the earth'swinters are not extremely cold. FiauarA 13 and 14 show surface. The meteorological elements discussed in this

Subsection are those which are of primary importancethe moan daily temperatures for January and July. to such operations a movement of troops and vehicles,These figures are mean temperature values arrived at by selection of clothing and equipment, storage of supplies,dividing by 4 the sum of the temperatures at 0700 and and maintenance of annament and equipment, Some

meteorological elements which may aim have an effect1400 LST and twice the temperature at 2100 LST. As upon this typet of operation are discussed in Subsce-_an he seen, large variations are due primarily to the tlions B, I and B, 2.

18

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recorded temperatures in the 90's, Temperatures at the The data used in constructing these figures are based onhigher elevations, however, have only reached the 60's the definition that a frost day is a day in which the!and 70's, Extreme minimums less than O°F. have oc- minimum free air temperature is less than 32*F. Rivericurred as early as December and as late as March at and streams freeze over annually, but the extent and'most locations, and temperatures this low have been re- duration varies from year to year, The ice is generallycorded at the highest elevations in the Eastern Moun- thicker and lasts longer in the east than in the west."

tains as early as October and as late as May. All but Because of its size and strong turrent, the Danube aver-'a few locations have recorded minimums colder than ages only about 20 days per year with ice cover, Iz-20'F,, and several places have reported temperatures most years, the ice cover of streams is generally thick,

colder than -30*F. Because of the strong temperature enough to permit crossing on Ifoot,

inversions, the coldest temperatures often occur at ele- b, RELATW inumIDY - In general, relative ha,vations of about 1,000 to 1,500 feet, rather than at the midity is high throughout Czechoslovakia, and the only,highest peaks. Temperatures below freezing have been major regional variations occur during summer after

reported at most places in all months except July and noons between the mountains and the lowlands, Se(aAugust, and even in these months, freezing temperatures sonal, diurnal, and regional variations for selected sta1Ihave been recorded at the higher mountain locations. tions are presented in Funy 18,' and tabular data for

Fioutus 53 and 54 give the mean number of days with wider selection of stations are given in FicunE 55,the maximum temperature equal to or less than 32*F, At the lower elevations, relative humidities generallyJand minimum temperature equal to or less than 320F. are highest from about midautumn through winter, wheo1Freezing temperatures are frequent in November diurnal variations are small. Relative humidities rang 4

through March, when they occur on approximately 10 mostly from 80% to 95% in the evening through thto 25 days per month in the lowlands and more often in early morning but ii the afternoon vary between abou'the mountains. In the higher mountains, freezing tem- 65% and 85%. At the lower elevations, relative hu,

, peratures have occurred in all months, and the highest midities are generally lowest in midspring throughelevations average as many as 10 to 15 such days in summer, when diurnal variations are much larger, Huleach of the summer months. Temperatures remain he- midities range mostly between 75% and 90% near tnitlow freezing throughout the day most often in December night and in the early morning but drop to about 50,through January, with the lower elevations generally to 70% during the afternoon and early evening.averaging about 10 to 20 such days in each of these At the higher olevatiois, relative humidities are bemonths; however, freezing temperatures are much more tween about 75% and 95% throughout the year, Digprevalent in the higher mountains, Fcuuss 16 and 17 urnal and seasonal variations are small and vary fro.give the mean dates of the first and last frosts of the year, one place to another, depending on elevation.

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C. Pnacli'riAloN -III getieral, precipitation iq fairly cal influences on the amount of precipitation tire ap-evenly distributed, twith nmost places averaging beitwoen parent in Fovm.. 19, In general, the precipitation pat-

*20 and 40 inches per year; in the higher mountains, an- torn outines the topography of the country, with thenuill amounts range to about 65 Inches (Fiouim 56), largest precipitation amounts occurring ait the highestThe frequency of precipitation varies little from month elevations In the Eastern Mountains,to month throughout the country, but the higher mon- Precipitation varies considerably from year to yeartafis have precipitatio~n more often than the lowlands, (Ficum 57), and the monthly amount received in one

* Finumiti 19 shows the distribution of "'Oan anulprO- year may be several times greater than that in anothereipitation. The seasonal and regional variations of mean year. Except for somne of the mountain locations, lessprecipitation tire depiuted for selected stations in than 1% Inches has been recorded in aill months, whereasFicuiUm 20. inost places have recorded more than 7 Inches in the

Precipitation is generally heaviest in thme warnner wettest months, The heaviest precipitation generallymonths and lightest iii the colder nmonths. Maximum occurs during the summeur months, when nmaximumn 24-

*precipitatioui occurs at most locations in June or July, hour amounts of 2 to 4 inches have been recorded at

and nfinimmonII precipitation occurs in 1061uary or March. mTost locations (FIouiur 58). Thoese large rainfall amountsHowever, the diffeirences between the highest jind low- Eire usuilly caused by heavy showers during summelr

*est amounts aire siai. ranging from about I to 3 Inches afternoons, hlowever, most places have recorded dailytit aill but the high nmountain locations, D)uring the time amounts of mnore than 1 inch even in winter, and theseof inaximn precipitation, amounts range from about amounts are indicative of hevyv snows.2 to 4 inches per mnonth, except in the higher mountains The frequency of precipitation is shown graphicallywhere the range is fromn about 5 to .10 inches, Pro- in Ficumu 21 and iii tabular form in Fiaunr. 59, which

Sjcipitatiomi aniounts of about 1 to 2 inches per mnonth aire give the mean number of days with precipitation ttthe general rule during the driest months, but inI the least 0,004 inch, These figures show that precipitationigher mountains the amounts are, between .3 and 5 is frequent throughout the year, occurring on about 10 to

iniches, Summter precipitation falls mainly its showers 20 days per month. Seasonal variations tire insignificant.from towering cutiulus or cumnulonnbus clouds. lDur- Throughout the Area, there Lire about 125 to 175ing thme witer, precipitaition nimmy persist fur sveral days with precipitation at low elevations and well overhours or oe(n an entire day or longer, and usually it falls 2(X) days in the higher mountains. The mean annualas light rain or snow, Occasionahly, sleet 01r freezing nmnbctr of days with precipitaition equal to or greaterruin maty occur (luring the colder months, Tlopographi- than 0.4 inch is depicted in Fwuitmu' 22, and monthly

22

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lFiun, 18, MRAN I0 A'1tivv: IUMIDrry (%), (For tabular data out Fuuat 55.)

tabulations are given in Fic.ump 60. Heavy precipitation locations in the Eastern Mountains snowfall can eoccurs mast often in May through August, when there be expected on several days during each of the summare an1 average of 2 to 4 days per month with at least months. Flicun 23 depicts the mean annual number0.4 inch In the Western Hills and Phins and the East- days with snowfall, and Fiounls 61 gives these dataern Lowlands Many locations In the Eastern Mountains months for various locations in the country. Thehave 2 or more days per month with heavy precipita- nual frequency of clays with snowfall ranges from ation during much of the year; the highest averages, 20 or less in parts of the lowlands to more than 150about 3 to 6 days per month, occur in summer, the highest mountain peaks. The mean and extra

Snow is the predeminant form of precipitation in No- dates of the first and last snowfalls are presented

vmbiner through March, On the average, the first snow- Fiuumu 62. Fimuu 24 depicts the mean annual numfail occurs in mid-October to mid-November, and the of days with snow cover, and FIouIRE 03 gives thlast snowfall occurs in late March to etrly May. The data by months it various locations, Snow cover ocelength of the period in which snowfall occurs generally on more than 15 (lays per month at many locatiincreases with increasing elevation, and at the highest during winter, and annual averages range from near

I 1 (. N

4A,

1W-. 0

I'z0UuP 10- MICAN ANNUAI. PImwPrrArioN (zNCtnu)

days in parts of the lowlands to over 200 days ait the (2) StOrage - Items stored in the open must behighest elevations in the Eastern Mountains, Although protected against precipitation, high humidity, low win.snow cover usually remains on the higher mountains ter temperatures, and strong winds In some mountainduring the colder months, at times foohn winds melt passes4. Some items, such as food and medical sup-the snow on the leeward slopes of thle mountains and plies, need refrigeration during the warmer monthshills ats well as in the adjoining lowlands, Fioutws 25 and at times during the colder months in the lowlands,and 26 show tile mean dates of the first and last snow D~uring spring thawing, thle ground may become verycover, and Ficum 64 gives these data as well as the ex. wot and muddy, and some sections, especially river val-treme dates In tabular form. leys, are subject to occasional flooding.

1leavy snows may occur throughout the country in (3) Shelter - Shelter should be provided forthe colder months. Depths from 10 to 30 Inches have protection against thle low temperatures, snow, and windbeen recorded ait most locations, and some mountain of winter, and thle rain, thunderstorms, and wet groundsections have reported well over 100 inches in several of suimmer. Screening or netting for tents may be neces-of the colder months (Ficuim 65). sary for protection against Insects in summer.

d. OVERSALL VFFECT- Or WEATHIER ON CWTOiING, Von-5 C. Meteorological facilities and organtion (asAGE, AND) HIIKrEnl of February 1960)

(1) Clothing - The most significant factors do. 1 itr ndognztotomuining clothing requirements Ii Czechoslovakia are 1.Hsoyadrgnatotemperature, precipitation, relative humidity, and The Czechoslovakian Meteorological and Hydrologi-wind, Snow cover and snow depths%, especially Ii thle cal Service has at tradition of long standing As one ofmountainous sections, are ailso important considerations, thle oldest services of its kind Ii Europe, R~egularThe tables ait thle eind of this Section, itsed Ii conjunc- weather observations were made in the area now knowntion with the( directives of th appropriate service, pro- ats Czechoslovakia ats early ats 1717, and the observatoryvide at lppe basis for thec selection of clothing and ait Prague hats been recording observations for 187 years.equipment. Suitable clothing should he provided for T'he State Institute for Meteorology wats formed after

protection Ii winter against low temperatures in comn- Czechoslovakia became at lepublic in 1918 but did notbination with high humidities, winids, and snow and really develop uintil 1030 when meteorological supportsnow glare. Duhring sumnmer, protection against insects, wats required by thle expanding air transport industry,mainly mosquitos and flies, is needed. Meteorological service wats disrupted during World

24-

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as ~ ~ ~ ~ ~ ~ ~ ~ in th yrmtoooiclIsiue eraty etmrtr and frrecipio 70 G Tatuin obr2.M etheroia oservices an Czrechslovn ki facilitie s - monts o h er l ttostk.n rnnformatoiondaed 1 May 195 its3 snptc Bohmeteorological organizad wethr bsr ations uttestnadsnovariatins

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The Air Force weather centrals tire locatedl in Prague, vakia, roughly the eastern third of the country, with Its* Brno, and Biratislava, they furnish forecast information Main Meteorological Office located in Bratislava. Each

to and control weather statio~ns serving the various mli- MMO supports and controls at number of Dependent*tary departments. Four aeronautical forecasts a (lay and Supplementary Meteorological Offices. The MMO's

*originate in Prague, bu~t other details onl the Air Forte tire staffed by plersonnel of bioth Sections, who plot and* I forecasting services are not available, analyze surface and tipper-air data from all Czecho-

The Weather Forecasting l)Ivision of the Institute is slovakian and selected foreign stations b~efore preparingdivided Into two Sections; one, the Aeronautical Me- forecasts. In addition to preparing routine and spo-teorological Servive, provideIs support to the civil air cial forecasts, the MMO's conduct a meteorological

*flect, thle other, the Weather Forecasting Service, pro- watch over their assigned region and issue ilk-flight ad-vides support to all other interests. Tlhese Sections have visories and warnings as necessary. Tlhe Dependenttwo regions of respon~sility. One region covers lBo- Meteorological Offices operate In at similar manner ex-hernia and Moravia, roughly the westerit two-thirdls of cept that coverage is restricted to their areas, and theyCzechoslovakia, with Its Main Meteorological Office sdo not maintain at meteorological watch, Supplemen-(MMO) located in Prague; the other region covers Sbo- tary Meteorological Offices do not prepare forecasts, and

26-

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Inlternlationlal exchange of weatheur datat is acioom- The Czechoslovakian~ Air Force Weather Service prob.'

1,lisIhd tlirotglt the facilities of the International Me- ably uNex part of the Institute's communications facilitiestoorological Ttilutype Network of Europo (IMTNE), it and supplements it with Its own circuits,network with dlropsM in almrost ll Ettropeim countris its Rladio woather biroadcasts are routinely transmitted

welas theQ United Staites and the~ U.S.R,. froin several Czccboslovakian stations. Hydrographic

28-

1.91 I

It~~ LnUN11

F" I Afr

i 2

A..~ [ MAH /1 AlI Ft 1

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-fc Publiatio No 1"n(olIeerlgca r eerlgclofcsbeoebcmn ulfe oe

ganizamtlon Publication No, 9 call hie consulted for trans- casters, The training and quality of forecasterN arem~ission times, call signs, frequencies, imssage coll. rated good by U.S, standards,tent, and other information on Cz'echoslovaiikan weather D. Climatic data tablesradio and teltype transmissions, Thibs Subsection contains the climatological data ta-

4. Training and proficiency of personnel bles referred to in Subsections A and B, MeteorologicalMost weather observers received their basic training data onl some elements, such as precipitation and tern-

in observing in the Czechoslovaklaun Air Force. The pL'rature. aire abundant, with 25 years or more of recordtraining Is repiorted to he of average qitality, Practically during the period .1901 through 1950, Ceiling andtill civilian observers are former Air F~orce men, chse visibility data, however, are generally for 5 to 10 yearsby the 4ervice after their tour? of military duhty. The of record, In till cases, these data aire the best avail-quality of weather observations inl Czechoslovakia is able and aire considered reliable. The annual values In

rate fai to ood.somle tables may differ slightly from the sum or meansather tois acx of tile, iiontlily values because of the rouinding-off of

Wahrforecasters ive comlekte'd itsecond. fractionls. A map of station locations (FiouRY 67), withary school educatonm and(lia 10-semester-hour course i illn accompanying list giving latitude, longitude, andmathemnatics anmd physics ait Charles4 University in Prague elev'ation of stations mnentionied In Subsections A, B, andand must have had( on-th~e-job training in the larger D), appears ait the end of this Section,

lViounm 27. MEAN CLOUDINEBB (%)

RAM*ON AND LTA'TZON JN PH Ait APRI VAY U U AUCI NSP 0(7i NOV_ D10 ANN YRS RIO

Western 11111s and Plains:B1foxny .................. 78 74 621 63 59 57 57 56 57 609 80 .82 66 25

N.slav ..................... 72 70 61 61 59 57 58 84 53 64 76 74 63 25

Nxak6 BudaJovie ...... 74 67 61 63 61 57 56 52 82 03 76 77 63 25

Cheb .................. 77 72 02 64 63 61 81 59 69 70 84 83 68 25

llradoo KrAlovd ............ 75 69 59 59 56 57 55 82 51 01 80 76 63 25

Jtviako .................. 77 72 61 00 55 53 53 51 50 62 81 79 63 26

Libero .................... 78 76 62 63 58 59 60 56 54 68 80 79 66 25

hlariAldk8 1Ast ........... 78 70 59 02 59 58 87 85 54 69 82 81 65 25

Mato Albruohtloc .......... .0 70 63 63 59 58 50 56 56 04 73 73 64 25

Miluovko ................ 78 75 60 67 64 02 63 89 58 71 82 79 88 25

Pancif .................... 74 70 60 70 65 64 65 62 60 70 76 76 69 25

PIaf1i ..................... 80 72 61 63 61 04 03 58 57 71 84 82 68 25

Prago .................... 75 70 60 58 57 56 56 51 52 65 78 70 63 25

,I mitkl pod 'romifnom.... 74 06 85 55 52 49 49 44 45 62 78 79 50 25

,nie* ................... 74 76 73 76 72 73 74 71 69 77 70 72 74 25

TAbor ...................... 79 72 04 04 63 61 0 56 58 60 82 82 67 25

repiie ..................... 86 81 69 67 64 02 63 60 61 75 87 88 72 25

V(tkov ..................... 76 73 03 61 58 86 55 54 51 0W 77 79 64 25

Eatitrn Lowlands:Bratialava .................. 72 64 5l1 52 49 47 45 42 42 56 74 76 56 25

Brio ......... ......... 72 6 64 54 51 80 40 47 45 58 77 76 58 25

Ilturbanovo ............. 72 46 89 58 57 54 48 47 47 69 74 76 60 26

K73i6m ...... 73 69 5) 50 55 85 51 49 47 B8 76 76 at 25

1,10111) ................... ) 02 53 55 A3 48 43 42 43 56 73 74 56 25

Nitra ..................... 71 05 56 55 54 61 47 45 45 57 75 75 58 25

Opava. ................... 72 73 05 03 1 61 60 59 50 65 77 77 66 25

Ostrava .................. 70 73 65 63 1O 68 57 50 54 (5 76 79 65 25

Plh'l1any .................. 71 67 87 80 85 51 49 40 46 58 75 74 59 25

torov ..................... 70 72 58 88 86 54 54 52 40 02 79 79 62 25

StrA~nlit ................... 70 70 69 60 58 57 560 52 49 60 77 78 63 25

8oojnio .................. 75 06 89 01 ,18 58 65 53 52 66 78 81 63 25

mA'trn Motintins:Brtxno nad Ilronom ......... 68 04 61) 01 o0 IS6 54 54 b4 65 77 75 62 25

, ystW~ks ................. . 72 70 61 A9 65 54 53 8 1 49 60 76 70 61 25

Lomulok,0 titt ...... ..... 57 17 58 07 67 74 70 60 16 52 01 56 61 25

LysA Iforn ................. 76 74 70 70 62 (13 (12 112 61 68 7H 77 69 25

Oravskj PodrAmok .......... 71 72 0:3 04 86, (10 68 58 57 65 7 76 65 25

4S8la .................... .(1) 06 A6 57 57 54 48 48 40 (02 77 75 0 25

Mplsk4 NovA Ves ........... 04 6 8 61) 62 58 67 s53 63 50 58 72 71 60 25

Star" Hnnokowoo ............. (2 65 b9 06 (15 14 60 60 55 1 68 (18 63 25

mTrom himmk r 'lmoo .......... 64 62 51) 57 53 81 50 48 48 57 73l 73 58 25

'lII m-immky HvILt# Martin.... 72 72 0:3 63 60 0 58 55 55 113 78 76 05 25

NoTr Motn 0lom1lnas Is tho avOragOt of clotdintWe obsorved at 0700, 1400, and 2100 IHT

Nar but oatmldu Cesomutlovakia,

301

REGON, AND STATION, AN MA I ,YI JUN I ,1 AUG ,,,L,.oID .,."(s. i ps T TT7OT O MQ AN)R I

Western Hills and Plains:(cak Budl~juviee ..... 0100 66 71 62 59 513 54 A4 48 4{) 61 82 7 5 go 94-9t i |radc KrAIMov ....... 0100 do 72 62 50 52 50 491 40 36l 5 1 74 69 no6 4-b 'Pizefi/iDobtany ....... 0100 70 75 59 ) 56 5 52 45 45 41 52 75 72 59 3-4 :Prad~l .... ....... . 0100 76 (it) 71 69 (14 62 60 511 56 (32 75 94 (18 3 4 ;Prague/R11ayU6 ....... 0100 68 08 55 50 49 49 51t 46 39 54 74 74 66 11-12Pfflbyslav ............ 0100 72 66 08 52I 59 55 49 42 35 50O 80 76 59 0-8 •AnldAka* ............. 0100 70 68 69 64 65 65 65 64 01 65 72j 70 66 9-11

lMasturn LowlantdaiBratislava/.lvanka pri .,

lDunaji ............. 0100 66i 64 58 49 485 46 42 36S 32 45 72I 71 53 9- 1 .BrnoiTufany ......... 0100 70 6/8 8 40 48 48 45i 39 38 51 72 76 54 I 1Koioe ............... 0100 69 68 52 44 42 41 :18 3+4 341 41 66 7fi5 0 so 0-11Ostrava .............. 0100 74 68 61 52 52 51 fit 41 38 52 71 7 5 8 as -10 -Ihgorod* ........... 0100 74 74 5 1 48 48 44 40 38 30t 41 69 74 52 5-7 .l

Eastern Mountains-Knaprowy Wturoih*, ... i010 60 64 89 66 08 70 64 So Pitt 51 59 66 62 6-8Loninilkct ........ 0100 58 54 50 65 06 71 70 d0 51 41 52', 06 89 4-5811&6 ................. 0100 09 06 5i8 48 45 46 41 34 32 64 70 76 54 ....9

Western IIls and Plains:C-wk6 BuddJovie ..... 0700 70 8it 78 72I 08 65 6t4 62 00 71 86 79 72 8-9I.1rado0 KXMlov ....... 0700 68 80 72l 65 74 55 00 62 no 01) 80 76 69 3-4 .Mtldovks, ...... 0700 80 80 70 00 0 60 60 ft 60 60 70 80 80 08 U-10 'Placifl]Dobtany ....... 0700 70 91 68 72 74 Oi0 61 62 12 74 115 90 72 3.-4Pradild .............. 0700 70 75 81 72 66 72 74 0 8 t0t 80 90 74 4-5iPrague/Rtlyn6l ...... 0700 78 76 70 64 119t 58 51) 58 P8t 04 at 80 66 11-12Pfibyslav ............ 0700 78 81 76 01) 06 (t1J 65 60 A 4 06t 85 84 70 6-,8dnioika* ............. 0700) 74 72 74 74 72 74 72 72 70 70 76 76 74 10-I I1Toplioe ............ 0700 90 90 80 80 70 70 70 70 80 00}l go 00 81 10}

Euuer n Lowlands-Bratislava/Ivanka pri

DunaJi ............. 0700 74 70 71 62J 38 84 51 5 1 40 60l 70 79 64 9-,11 .Brno/Tttfany ......... 0700 76 78 70 61 00 +58 AllJ 52 41) 69 79 80 ,10 II-.12lHurbanovo-..... 0700) 80 70 60) 00 t0 no 40 50 50 60 80 80 61 10 ']rolec ............... 0700 76 7i (15 H~t 50 ,54 40 42 45 8it 75 81 61 11-12Ostrava .............. 0700 71) 78 74 60 44 60 88 50 fig 70 go 70 69 li lWa~rov ............... 0700 so 70 00 0 0 50 50 50 51) 50 0) 80 80 62 10Ozhgorodi* ........... 0700 78 71) 70t 05 64 /89 58 54 5) 0ll 80, 84 08 5-6

Eastern Mountains:Hamprowy Wloroh*,,,. 0700 70(19 68 ill 74 7'2 71 606 i4 6t2 02 Oil 74 {0 7--gLomnlok$ btt ........ 070)0 02 (11) (14 66 71 f9it) I d 60 59l 0 i0 019 64 5-7Blind ................. 0700 78 765 7n f 2 it2 59t 58 51 fit 82 80 82 60 8-1) .

Western Hlills anti Plains:..6%ek 6 Bul ovlo .. 0100 7/6 715 75 72 74 71 711 11r, ar 1+ 8,2 78 71 7-1),Hradec KrAlov6 ....... 1:100 74 7 5 (18 (is 74 02 15 ttis An 05 88 79 70 4-0 'M1h,4ovkas ............ 1400 70 90l 70 70 60 60l 70 70 60l 00 H0I 70} 08 10Plmeii/Dlobhuyt ....... 1300 75 76 72, 70 71) 05 (11) fimt 501 62 92 79 71 3-4Prad~d .............. 1:100 91 (11 74 745 HO 91l 92 79) 74 70 794 H4 78 31--bPragule/ltuNy16 ....... 1300 74 72 (18 6 (t5 (19 0 01) (5 88 64 80 78 69 11-12PRlbymlav . . .... . .. .. 1300 941) 7h 78 74 76 74 70t 70t (11 6 88 84 75J 04-gnioika* ............. 1:100 78 74 76 79 8 1 8I12 81 80 75 72, 70 75 79 10-11Toplice .............. 14010 il0 M0 71) 70) 70 71) 70l 70 7o) go 0 0 00( 77 ill

•Near but outm ide Orechuslovakin.

Fiitin 28 (Continued)

REGION AND STATION HOUR _IN _!B MAR FAM~ MAY JUJN JU AU jm j~oeP-r NOVDX AN4N YJRs RZC

(14T)Eastern Lowlandsc

Bratislava/Ivanka priDunaJI .......... 1300 72 74 60 64 64 59 59 52 51 56 78 79 65 9-11

Brno/l'uhany ......... 1300 74 74 69 69 %9 68 65 62 58 65 82 81 70 11--12Hurbanovo .......... 1400) W0 70 Uo0 ht 50 50 5 50 50 50 50 50 53 10Koloe ............... 1300 74 71 62 01 04 61 86 51 51 r)1 75 79 62 10-11Ostrava ............. 1300 72 71 69 60 70 06 61 62 88 62 78 76 68 10-11P erov............ 1400 70 60 60 70 60 60 50 60 50 60 70 80 63 10Ushgorod* .......... 13 0 0 7 4 7 9 7 1 66 7 1 66 6 4 58 56 5 5 7 0 8 1 6 ) 6 - 7

Eastern Mountains:Kasprowy Wioroh*,,, 1300 69 69 71 80 82 84 80 79 72 61 65 76 74 6-7Lonitlok AtIt.. 1300 64 65 62 76 84 89 84 81 71 66 60 68 71 4-6

it ................. 1300 74 70 69 68 71 68 62 59 62 60 80 78 68 7-9

Western Hills and Plains:O .k6 BudSjovluo .. 1000 71 74 75 72 72 88 62 61 54 65 78 76 69 8-10liradeo KrAov6 , ..... 1000 66 71 71 08 70 62 59 59 55 56 74 71 65 3-5Plae6t/Dobtany ....... 1000 66 74 74 89 72 62 69 55 50 58 75 71 65 3-4Prad~d ............ 1000 78 72 78 74 68 72 72 69 68 68 75 80 72 4-5Praguo/furyn ....... 1900 69 06 61 04 62 61 62 58 51 62 75 75 62 11-12Pfbyslav ............ 1900 72 71 71 60 68 02 62 61 50 52 78 79 68 6-86nleika* ............. 1900 75 74 78 74 74 75 71 72 69 68 71 71 72 10-12

Eastern Lowlands;Bratislava/lvanka pri

DunaJi ............. 1900 62 68 01 60 65 88 64 54 45 45 70 71 89 9-11Bruo/T utfan ......... 1000 60 69 02 08 61 01 58 54 51 52 78 76 02 11-12*vale .............. 1900 68 05 68 56 ,59 50 51 50 42 40 69 75 68 11Oatrava .............. 1900 71 05 86 06 65 62 55 50 50 54 72 74 62 10-11Ushgorod* ........... 1900 70 72 60 62 68 68 00 59 46 42 68 76 62 8-7

Eastern Mountain:Kasprowy Wioroh* . .1 00 66 64 64 75 78 80 74 72 65 58 66 68 69 7-8Lomtniek$ A tt ........ 10)0 80 01 64 74 80 82 75 75 65 49 59 64 68 6-7

....... ...... , 1900 69 62 60 62 (14 62 84 50 45 49 70 72 60 8-10

* Near but outside Cwehoalovaka.

:32

'1

Ficiwt 29. MEAN NUMBER OF CLEAR DAYB

RVUION AND eTATION JAN MAY JUN JUL AUOG MUP OCT NOV IDXU ANN YlS RMO

Western Hills and Plain:S ifesiny .................... 2 2 5 4 4 8 4 5 4 2 1 2 40 25

A..av................. 2 2 4 3 4 4 4 5 7 4 1 2 43 25.eski Buddovie ........... 1 3 4 a 3 4 4 5 6 3 1 1 38 25Cheb ..................... 2 3 5 3 3 4 3 4 4 3 A 2 36 28Hrade KrAlov ............. 2 3 6 4 4 4 5 6 7 4 1 3 47 28Jevlko ..................... 2 3 5 3 5 5 6 6 7 5 1 2 49 25Libere c ..................... 3 2 5 4 5 4 4 6 3 2 3 46 25Mariinskd Liang ............ 2 4 6 4 4 4 4 5 6 3 1 2 46 25

aMeto Albroohti ........... 3 3 5 4 4 4 3 5 8 4 2 3 45 26Milolavka ................. 2 3 8 8 4 4 4 5 6 3 1 3 41 25Panoli .................... 4 4 5 3 3 4 3 4 5 4 2 3 44 25Pisea ........... .......... 1 2 b 8 3 3 3 4 5 2 1 1 32 25Prague .................... 2 2 5 5 4 4 4 6 6 3 2 1 44 25Hoimitti pod Tfemlltn .,, 2 4 7 a 6 7 7 9 9 5 1 2 84 25gnichka* .................. 4 2 3 2 2 2 1 2 3 2 2 4 28 25TAbor ..................... 2 3 5 4 4 4 4 5 6 3 1 2 41 25Teplie .................... 1 1 3 2 3 3 3 3 3 2 * 1 1 23 25Vitkov .................... 3 2 4 3 4 4 4 6 6 4 2 2 44 25

Eastern Lowlands:Bratislava ................. 2 4 6 5 6 6 6 8 9 5 2 2 61 25Brno ...................... 3 4 6 5 6 5 5 7 8 5 2 2 56 25I-Hurbanovo ................ 3 4 5 4 4 4 6 7 7 5 2 2 52 25

oioe ............... ...... 3 3 6 4 4 4 6 6 7 5 2 2 61 25Lueeo ................... 4 8 7 5 5 6 7 0 0 6 a a d9 25Nitra.................... 3 4 6 4 4 5 6 7 8 5 2 3 56 28Opava. . ......... , 3 2 4 3 4 3 4 4 5 4 1 2 88 25Ostrava ................. 2 2 4 3 4 4 4 6 6 3 2 1 41 25Pialany 8................... 3 3 8 4 4 5 a 7 7 6 1 2 52 25Plerov .................. 2 3 5 4 4 4 4 6 7 4 1 2 47 25Strinie ................... 2 3 8 4 4 4 4 5 7 4 1 2 45 28Znojmo ................. 2 3 4 3 3 '3 4 8 6 3 1 1 40 25

Eastern Mountains:Bystfifka ....... .... 4 3 0 4 6 6 6 7 8 5 2 a 58 25Lomnik tit,....... ....... 5 11 3 2 1 2 4 5 8 3 6 48 25LysA Fora ................ 8 3 4 3 4 2 3 3 6 4 2 3 42 25Oravsk PodsAmok .......... 4 ,i 5 3 4 4 4 4 4 4 2 3 43 25811a ............ ..... 4 4 6 4 4 4 5 5 6 5 2 3 52 25Spi kk Nova Ves .......... 4 3 5 3 3 3 5 5 7 5 3 3 48 25Star 8mokoveo ............. 4 5 2 2 2 3 3 5 5 3 4 43 25Tron~iansko Tophio .......... 3 4 6 8 5 5 6 8 8 5 1 3 59 28Turdiansky Hvlit Martin, 4 3 5 3 3 3 4 5 6 3 2 3 141 1 28

No ru Clear day Is defined as a day with mean cloud cover <2-oighthe.* Near but outside Czeohoslovakia,

* ** <0.5 day.

S.

j'miuam 30. MEAN NUMBI'10 OF D)AYM. WITH TOTAL, CLOU) COVER '2-ElGf][TT AT SPECIFIED IHOURS

H90I101I AND) STATION HKOURI 40VMI I'iMY JN U ~ ANN YIIM iU6C

(LEIT)

Western 1111s and Plins:(Na k6 Idjovict ..... 0100 8 (1 10 10 11 12 12 14 16 13 4 1 122 8-9Iladvme Krflhve..... 01010 7 7 10 13 13 12 13 14 18 14 7 1) 136 4-5I zvh'/ )OW1'll y....... 0100 0 6 II 10 12 12 14 18 16 14 5 7 13 3-4l'rad~i .............. 0100 8 P 8 ) 10 it 11 12 12 11 8 6 112 3-4Prague/Iuyn ....... 0100 8 8 12 13 1d 13 12 14 11 13 6 7 135 11-12Pfbyslav ............ 0100 8 9 9 12 11 11 13 17 18 14 5 ( 133 6-8,nluika* ............. 0100 8 0 9 10 10 9 9 10 I1 11 7 8 110 9-11

Eastern Lowlands:Bratilava/Ivanka pri

1)unajl ............. (1100 8 8 12 12 15 14 15 18 19 15 7 7 152 9-11Brno/ufany ......... 0100 8 8 13 15 14 14 15 18 18 13 7 7 140 11Ku~kee ............... 0100 9 8 13 15 16 16 18 19 19 17 8 7 164 10-11Ostrava ........... 0100 ( 8 it 13 13 13 13 16 17 13 7 6 131 9-10Ulzhgorod* ........... 0100 7 7 14 15 14 15 17 19 18 18 8 7 158 5-7

Eastern Mountains:Kasprowy Wiorch*, ... 0t00 9 9 13 9 0 8 11 11 12 15 12 to 127 6--Lomnck Atit ........ 0100 13 11 12 9 10 8 8 12 14 17 12 10 136 4-58Sla ................. (100 8 8 12 13 15 13 15 19 19 12 6 6 147 8-9

Western Ifillm and Plains:Wesk6 Budtjovkio .... 0700 5 2 4 5 7 7 7 8 9 6. 2 4 00 8-9

Chob ................ 0800 5 5 6 7 7 10 7 7 5 2 2 3 06 4-5lirdc Krdlov ....... 0700 8 3 6 8 4 8 9 7 11 7 1 6 79 3-4Lberem .............. 0800 5 4 5 5 8 8 8 9) 7 6 3 4 70 5-6Milcuovka- ,,....... 0700 7 4 7 10 10 11 10 ) 10 7 8 4 93 9-10

J, PlzeSl/Dobiany ....... 0700 5 1 6 4 5) 8 7 7 10 6 3 5 67 3-4Prad1 .............. 0700 6 6 4 6 8 5 6 7 9 8 1 5 76 4-5Pragu/luyuzl ....... 0700 0 5 6 8 10 9 10 1) 12 8 3 4 90 11-121Pibyalav ............ 700 0 4 5 7 8 9 8 10 12 9 :1 4 85 6-8

Anioika* ............. 0700 7 7 7 6 7 5 7 6 7 7 5I 5 76 10-11Toplico ............ ,, 0700 1 2 3 3 5 4 5 5 3 2 I 1 34 10

Emtorn Lowland:aBratslava/ivaaka pri

Dunaji ............. 0700 6 4 5 7 9 '0 13 11 14 10 5 4 97 9-11rno/Tfany .. .. . 0700 6 5 7, 8 9 10 12 I1 13 7 A 4 97 11-12

Hurbanovo ........... 0700 4 5 8 8 1i 12 15 3 9 8 4 4 10l 10Kolen............... 0700 61 6 8 10 10 12 14 15 15 1I 5 5 115 11-12Ostrava .............. 0700 4 5 6 7 8 (1 10 I 10 7 5 5 86 10-11

Pfarov ............. 0/00 4 5 1W 8 10 1( 12 12 I0 8 4 4 97 10lUzhgorod* ........... 0700 6 5 5 9 9 11 I1 12 13 i t) 4 100 5-6

Eatern M ooztalns:

Kamprowy Wlerch* .... 0700 8 9 1) 5 6 (6 8 it 9 10 7 7 95 7-8Iomiiok At, t ........ 0700 11 8 10 9 7 7 1I 10 1i II II 10 114 5-78 ia...............) 0700 6 5 5 8 8 9 12 12 1) 2 4 82 8-9

Wolic zun 111111 and 1)l ins:6(, Bud~jovio.. 1300 4 5 4 4 2 4 I 5 t 1) 2 4 54 7-9Chob ............... 14400 7 6 1 4 4 6 ;j 3 4 3 3 4 53 4-5Hradoc Krfdovi ....... 1300 5 5 5 5 2 5 (1 5 10 8 1 5 51) 4-6iborioo ............. 1400 5 6 6 5 5 6 4 5 6 6 3 5 60 5Milheovka ........... 1400 8 5 5 6 6 6 5 5 8 1) 4 5 71 10Ploefi/I)obtany ....... 13010 h 5 5 4 I 4 1 5 h 8 I 5 52 3-4Pradd .............. 1300 4 7 7 4 I 2 2 2 1 8 5 4 47 3-5Prague/Rusynd ....... 1:100 5 5 7 6| 4 4 4 4 8 8 3 4 60 1 1-12Ptlby8 lay ............ 1300 4 5 4 4 2 1 2 3 7 7 2 :1 44 0-7pizleAka* ............ 1300 (1 6 5 4 2 2 3 2 5 7 5 6 52 10-11'l't litne .............. 1400 I 3 5 3 2 2 : 1 4 2 2 I 31 10

* Near butt olutsidti (CzeehomlovakhI,

3,l-

Ft1ummi 30 (Continued)

4tM01ON AND JANON Iolt V~ MART AIL MAY JUN JUL, AUG BEIl' OCT NOV lJOV ANN YIA H3

1 ltorn Lowlands:Brattilava/I1vnkn pri

DiinnJl............. 1300 5 5 A 5 6 8 8 10 1O 4 4 75 9-- 11Brno,'Pufnny ......... 1300 (1 0 ( 5 4 4 0 0 ) 8 2 4 63 11--12llurbunovo ........... 1400 5 0 7 4 5 ( 8 90 7 10 (0 5 76 I)Kogice ............... 1300 0 5 9 8 5 7 8 I I I 12 5 i l 10--I IOstratva .............. 1300 0 II 7 6 5 0 8 0 1) 8 ,1 5 74 I0- IIPlfrov ............... 1400 5 7 9 5 r, 5 7 0 8 7 5 4 71 0Ushgorod* .......... 1300 7 5 6 7 4 7 6 0 10 12 4 4 83 6-7

Kasprowy Wioroh*. . . 1300 8 7 ff 3 I I 2 3 6 10 8 6 62 6-7Loriniok Att ........ 1300 ) 8 10 6 2 1 2 2 7 12 lI 8 78 4-6811a5 ................. 300 6 5 7 5 2 3 5 7 10 9) 3 A 68 7-9

Wostern Hills and PlAins:S('eakd Ihud~jovim. ..... 1900 6 5 5 5 4 5 7 7 |1 11 5 5 74 9-10Cheb ................ 1900 8 5 7 5 , 8 4 6 7 5 7 5 73 3-4Hradoo KrAlov6 ..... 1900 10 7 A 0 3 6 ) 8 10 I I 6 7 89 3-5Liberoo .............. 1900 7 5 7 5 8 8 0 9 8 10 4 a 80 4-5Plei, Dob any ....... 1900 8 6 5 4 A 6 8 7 II 12 0 8 86 3-4Praudd .............. 9100) 7 7 6 5 6 5 5 6 8 10 7 I 70 4-5PraguR'usytd ....... 1900 8 8 10 7 7 7 8 8 II 13 0 0 98 11-1 2Pflbyslav ............ 1900 7 7 6 7 0 7 7 8 12 14 0 a I)I 6-..gnicika* ............. 1900 7 (16 6 6 4 5 5 7 1) 7 8 75 10-42.

IMastorn Lowlatnds:* Ilratlslava/Ivatnkit prl

Dull J ............ 1900 10 8 8 8 !0 8 1I II I1 15 8 7 120 9-IiBrto/Tufany ......... 1900 8 7 ) 0 7 8 10 )10 12 13 5 6 104 11-12Kn too ............... 1900 1 ) 9 0 3 10 8 8 II I 16 17 8 7 123 iOstrava ............ 1900 ( 8 ) 7 7 7 ) 10 12 13 7 6 101 10-IUthgorod* ........... 1100 8 7 II 10 7 7 II 10 18 17 9 7 16i 5-7

Iastorn Mountains:Kasllrowy Wloroh* .... 1 00 10 1) 30 6 4 3 6 0 1) 1.3 9 ) 93 7-8Ijoinmiuk Att ........ 1900 12 10 11 6 4 3 5 1) I0 I8 12 10 1)2 5-7Slia ............... ,, 11900 8 9 9 8 0 7 30 10 14 14 7 7 I01) =-9

* Nutar but outldo Cuohuslovatla,

'' '

4

'

-

'4m

1'Viuot 31, MEAN NUMBHIt OF CLOU)Y D)AYM

HtmotoN ANDI STATION JAN YrN 1 MAlt A Pil UAY JUN JUL1 _AlY 01 WMIT NOV t)010 N Vs IUWomteml l ls raid PJle st

11feminy .................... 18 15 11 11 9 8 7 8 8 13 18 21 149 25htfAav .................. 18 18 13 11 10 9 9 8 8 14 19 19 152 25

t,sk6 BudSJovioe ........... 17 12 10 10 9 7 7 7 8 11 16 17 130 25Chob ................... 19 15 12 11 10 10 8 9 1) 15. 20 22 159 25IIradee KrAlovd ............. 17 14 10 0 7 8 6 7 7 10 18 18 129 25Jovtko .................... 20 15 12 11 0 8 7 8 8 12 21 21 151 25Libor, ....... ............ 20 16 13 11 9 9 9 9 8 13 19 20 155 25MsrItiesk6 LAixt ............ 19 15 12 9 9 9 7 8 8 15 20 21 152 25M1sto Albroohtioo ........... 14 13 11 10 9 8 8 8 8 12 15 1o 131 25Milegovkia .............. 18 1 14 12 10 9 10 9 9 15 19 20 160 25Panloff .......... ......... 17 16 14 14 12 11 it i 11 15 18 19 168 25, P lhi ...................... 20 It$ it 1I 12 11 10 10 10 14 21 22 too 25

Prague .............. 17 13 10 0 8 7 7 6 6 12 18 19 131 25IotInitAl pod 'rWominentm .... 10 12 9 8 7 6 5 5 5 12 17 19 122 25

SlnIotka* ................. 17 16 16 16 15 14 15 15 14 18 18 17 192 25TAbor ........ ............ 19 15 1.3 11 10 9 0 8 9 14 20 21 157 25Toplice ............. ....... 22 18 14 1t 10 8 0 8 0 10 22 23 170 25V.kvv .................... 17 15 12 10 8 7 7 7 6 I1 17 19 135 25

Eastern 1owhanda[Bratilawv ............... 15 it 8 6 5 4 4 4 0 15 17 115 25Birt ....................... 16 12 8 7 6 5 4 4 5 0 17 18 110 25Illurbanovo ............... 15 12 10 8 8 6 5 5 5 10 15 18 115 25

Kolio .................... 18 14 11 9 7 7 8 6 5 11 17 19 129 25Lu~cneo ................... 15 11 9 8 7 5 3 4 4 10 16 17 109 25Nitr ..... .. .............. 10 12 1) 7 6 5 5 4 4 9 15 17 111 25Opera .................... 15 14 12 10 10 0I 8 8 8 12 iI 18 139 25ontrAva .................... IS 18 12 10 9 8 H 8 7 12 1t 19 143 25PIttie ny .... ...... ....... . 15 12 1) 8 0 5 4 4 8 10 16 17 It0 25Pforov ....... .. . .... 18 14 11 9 8 7 0 8 0 11 18 20 183 25Strlitdee .................. 17 13 11 9 9 8 8 6 7 11 17 18 134 25Znojrno.................. 18 13 11 10 8 7 7 5 7 12 18 21 138 25

BHamterm Mountina:Bysttl~k.................. 17 14 12 0 0 8 7 7 6 12 17 18 186 25]oinultkt Atit ............... 12 11 11 12 12 15 13 10 8 9 12 9 134 25LyMsA Iora................1 t 17 10 14 11 11 11 12 11 15 20 20 179 25Oravsk PodsAmok .......... 17 15 12 11 11 9 8 8 9 14 18 17 150 25SHl0,t .............. ......... 15 12 9 8 8 6 4 5 5 11 17 18 119 25Splkk Nov& ViY ........... 14 12 11 10 8 8 4 7 6 9 15 16 118 258tar Hmokovoo ............. 11 12 10 11 11 0 8 9 7 I 13 14 125 25Trwnhwuske Topllio .......... 16 13 10 8 7 6 6 6 6 12 17 18 126 25Turimoky SvU$tt Martin ..... 18 16 13 10 10 ) 8 7 8 13 19 19 147 25

Ntnm Cloudy dtay In dnfned its it day with tnatt oloutd cover >6-oighthm.* Near but outtode Caeohoslovakis,

A3

Fznau 32. MEAN NUMBER OF DAYS WITHI TOTAL CLOUD COVER !6-E1IGHTI AT SPECIFIED IOUR

RmOiON AND STATION HOUR JAN MJ MAR APR MAY JUN JUL AUG HIP OUT NOV Mae ANN TRO HE(

Wentnrn Hills and Plains:N(esk6 Btid6jovice .... 0100 19 19 18 17 16 14 14 13 10 14 23 22 199 8-9lirado/ KrAlov ...... 0100 20 19 18 13 14 13 13 12 0 16 21 21 189 4-5!isrei/lobtany. ...... 0100 21 20 18 10 15 14 11 12 11 16 21 22 196 3-4Prad{d ............. 0100 23 t 21 20 18 17 17 17 16 18 22 26 23, 3-4Prgultuuzyn6 ....... 0100 20 18 16 13 13 12 14 12 9 16 21 22 184 11-12Pfibysiav ........... 0100 22 18 20 14 17 14 14 11 9 14 23 23 199 6-8gnietka* ........... 0100 20 18 20 18 19 17 18 18 18 19 21 21 226 9-11

iAMtern Lowlands:Bratish, ,/T.vankx pri

1un0 ........... 010 20 17 16 13 11 11 10 8 8 13 21 21 168 9-11Brno/'r lny ......... 0100 21 17 15 12 13 12 12 10 9 15 21 23 179 11, o~oo .............. 0100 20 18 15 11 10 10 10 7 8 11 19 22 160 10-11Ostrava .............. 0100 22 18 18 14 14 13 14 10 10 15 20 22 190 0-101Ushgorod* .......... 0100 22 20 1o 14 14 13 11 10 10 13 21 22 185 8-7

Eastern Moutains:Krasprowy Wiorch*, 0100 20 17 17 18 10 18 17 15 14 14 16 20 209 0-8Lotnmiok Atit ....... 0100 15 13 17 17 10 20 20 17 14 10 14 19 i94 4-5M.ail ................ 0100 20 18 16 12 11 12 10 8 8 15 22 23 174 8-o) -.

Wvtorn lulls and Plains:6%k6 lBudjovie ... 0700 22 2:3 23 21 18 17 18 17 16 20 25 23 242 8-9Cheb ............. 0800 25 22 22 21 22 18 21 22 22 27 27 27 274 4-5Hradoc KrAlov6.. 0700 19 23 20 17 20 15 10 10 15 10 25 22 227 3-4Libereo ............. 0800 24 22 24 22 20 18 19 19 20 23 25 25 268 2-6Milov ........... 0700 23 23 21 17 10 15 17 17 18 21 24 25 230 9-10Plzeft/Dobfany.......0700 24 25 17 10 21 15 16 17 17 22 24 24 241 3-4Pradld ............ 0700 23 10 24 20 17 19 20 19 19 19 23 23 244 4-5Prague/ltuayn d ...... 000 2a 20 20 18 17 15 10 16 13 18 23 24 222 11-12Pfibysflv 0........... 00 3 22 23 20 10 17 19 10 15 19 24 20 242 6-8Anlefika* ......... 0700 22 19 22 21 21 20 21 22 20 20 22 23 2B8 10-11Tepiloo .............. 0700 29 24 24 22 20 20 19 20 22 26 27 28 281 10

Eatern Lowlands:Bratlsahva/lvanka pri

unaJ ............. 0700 22 20 21 16 16 13 13 13 11 16 22 24 205 9-11Bmo/T ny ........ 0700 22 21 21 17 10 15 14 14 13 20 22 24 217 11-12Hurbanovo ......... 0700 24 19 18 17 15 13 It 12 14 19 23 24 208 10Kolio ............. 0700 23 20 18 14 14 14 11 10 10 15 21 24 192 11-12Otrv, .. 0.70........ 0 23 20 22 18 18 16 15 15 15 20 23 24 230 10-11Pfarov ..... ..... 07 0 24 19 10 15 14 14 12 12 13 17 22 24 201 10Ushgorod* .......... 0700 23 22 25 20 20 17 17 16 13 10 24 20 242 5-6

Eastern Mountains:Kramprowy Wieroh*. 0700 20 18 to 21 21 20 t1 18 18 18 19 22 238 7.-8Lotnnick tit ....... 0700 17 18 18 18 20 18 10 15 14 15 15 20 204 5-7Sla ................ 0700 23 20 21 17 17 15 14 13 10 25 25 24 230 8-9

Western Hilts and Plins:22oek6 IBudjovao, .... 22 20 23 20 21 19 19 17 12 17 23 23 236 7-9

Chob ................ 140) 22 19 23 23 23 18 25 23 21 25 20 20 273 4-5liradec Krlov6 ....... 21 21 17 18 21 15 17 10 13 18 20 23 226 4-6Liberoc .............. 1400 24 20 22 22 22 18 23 20 19 21 25 24 280Milodovk ......... 1400 21 21 21 19 17 17 18 18 17 19 22 23 231 10PleiS/i)obtany ....... 1300 23 21 10 19 23 14 16 18 15 17 22 23 228 3-4Pradd .............. 1300 24 17 21 21 23 24 24 23 21 19 21 24 202 -Prague/ltusynd ....... 1300 22 19 19 18 18 16 18 10 14 18 23 24 224 11-12Pfibyslav ............ 1300 25 19 22 21 23 20 .32 20 16 19 27 26 28 6-7-nivika* ............ 1300 23 19 23 23 26 25 26 25 22 22 22 22 276 10-l-opliao .............. 1400 27 21 20 21 20 19 17 11) 20 23 25 27 258 i(t

* Near but outside Oecholovakla,

- 37

Ficiums 32 (Conifirnud)

P.UUION AND WrAI'ION HOUlt JA VKY r juNA jut,~j~ ANN YRS RUG(urr) :

Eastern Lowlands:Bratislava/Ivanka priDuna ......... 1300 21 19 19 16 15 12 14 14) it 14 22 24 197 9-11

Brnorumany ......... 1300 22 19 19 10 19 17 16 15 14 18 24 25 226 11-12Hurbanovo ........... 1400 22 17 18 18 14 13 13 11 15 10 20 23 108 10Kolioe .............. 1300 21 11 17 14 15 14 11 10 11 12 21 24 189 10-11Ostrava ............. 1300 21 1" 20 18 19 17 16 16 14 17 22 23 222 10-11Pferov ............. 1400 21 10 16 18 15 15 12 14 14 16 21 24 202 10Uaihgorod .......... 130 22 22 21 19 21 20 18 16 15 16 24 25 237 6-7

Eastern Mountains:Kuprowy Wierch*,, 1300 21 18 22 23 25 26 25 25 21 17 18 23 264 6-7Lotnnick Atit ....... 1300 17 17 18 22 25 27 25 24 20 14 16 10 242 4-68la ................. 1300 21 18 19 16 20 17 14 13 12 16 23 23 213 7-9

Western Hills and Plains:& Heudjoviac .... 1900 21 19 22 20 21 17 17 15 13 15 21 23 222 8-10Cheb ................ 100 21 20 18 21 21 16 21 19 18 23 20 24 242 3-4lradec KrAIov6 .... 1900 19 18 20 17 19 18 15 14 13 15 21 21 206 8-5Liberec .............. 1900 23 21 20 20 21 16 18 16 10 20 24 23 230 4-8Plseti/Dobtany ...... 1900 20 20 21 19 20 14 16 i3 13 16 21 21 212 3-4Pradid .............. 1900 23 1 23 19 17 19 20 18 18 19 21 25 241 4-8Prague/Rutynd ....... 1900 20 17 17 17 16 16 17 14 13 14 22 22 203 11-12Pibyslav ............ 1900 22 18 20 17 1 10 16 18 12 15 22 23 214 6-8gnieka* .......... ,. 1000 23 20 23 21 21 21 21 21 19 19 20 21 248 10-12

Eastern Lowlands-Bratiulava/Ivanka pri

Dunaji ..... ... 1900 18 17 16 15 13 14 13 12 t 12 20 21 180 9-11Brno/Tufany ........ 1900 20 1b 17 17 1 16 15 13 12 15 22 23 202 11-12K olice ............... 1900 20 17 15 14 14 14 12 11 9 i 10 22 177 11Ostrava .............. 1000 21 17 18 17 17 16 14 14 12 15 21 22 204 10-11Ushgorod* ........... 1900 22 20 19 18 21 21 18 16 12 13 20 23 221 5-7

E2astern Mountains:

Kuprowy Wieroh*.. .. 190(0 1 16 19 21 24 24 22 21 17 16 to 10 235 7-8Loninick tt ...... 1000 15 15 18 20 24 24 21 22 17 12 16 18 221 5-7SllaS ................ 1900 20 10 18 15 18 16 13 11 10 12 20 22 188 8-0

* Near but outside Coeohoslovakla,

38

Finmam 33. MEAN NUMBER OF I)AYS WITH TOTAL CLOUD COVER .2-EIGOHTHS AND VISIBILITY ;2,Aq MILESAT SPECIFIED HOURS

REGION AN?) STATION nloun JAN-Lf VMS MAR APR MAYf JUNj JUl. AUTu NEP OCTNOV 100U ANN TIIS R110

(1S3T)W( tern Iills and Plains:

,('mck6 Budljovio..... 0100 6 3 8 10 11 11 12 13 13 9 3Hradec Kr&)ov6 ...... 0100 7 4 8 13 12 12 13 13 16 10 4 5 115 4-5PIoS/Dobtmny ....... 0100 3 1 7 7 9 9 10 14 7 5 3 1 76 3-4Prad~d .............. 0100 8 8 8 9 11 9 11 11 12 It 7 5 108 3-4Prague/Rusyn6 ...... 0100 7 5 11 12 14 13 12 14 15 11 6 6 125 11-12Pfbyulav............ 0100 7 7 8 12 10 10 I3 16 17 13 4 5 191Aidekka ............ 0100 8 9 9 10 10 9 9 10 11 11 7 8 110 9-11

Eastern Lowlands:Bratialava/Ivanka pri

Dunaji ............ 0100 6 7 11 12 1,5 14 18 18 18 14 7 a 148 9-11Brno/Tufny ........ 0100 6 6 11 14 14 13 15 17 18 10 6 5 185 11Kolie ............ 0100 8 7 13 15 16 16 18 19 19 17 7 a 160 10-11

: Ostrava ............ 0100 4 5 7 it 11 11 12 14 13 8 4 a 106 9-10Ushgorod ........... 0100 6 6 13 15 14 15 17 19 18 17 8 0 153 5-7

Eastern Mountaini:Kasprowy Wlerch*'.,. 0100 9 9 13 9 9 8 11 12 12 15 12 10 127 6-8Lomnlokt tit ........ 0100 13 11 12 9 10 7 8 12 14 17 12 11 186 4-Slia ................. 0100 5 5 11 13 14 12 15 18 15 8 5 3 125 8-9

Western HI10 and Plains:O ek6 BudiJovie .. 0700 3 1 3 3 5 6 5 6 3 2 2 3 41 8-9Cheb ............... 0800 2 2 3 5 4 5 4 2 1 1 1 2 82 4-Hradeo KrAlovd ...... 0700 6 2 2 7 3 7 6 6 7 3 1 3 a1 3-4Liberec .............. 0800 3 2 4 4 7 8 8 9 6 6 3 3 61 8-6Plsefi/Dobtany ...... 0700 2 * 2 1 3 4 3 4 3 1 0 * 22 3-4Pradd ............. 0700 5 6 4 6 8 5 6 7 9 9 a 5 75 4-5Prague/Ruynd ...... 0700 5 2 5 7 9 9 9 8 10 5 2 3 72 11-12Plblav ......... 0700 4 4 4 7 7 8 7 8 10 6 2 3 71 7-8ntika* ............. 0700 7 7 6 6 7 5 7 0 7 7 6 5 70 10-11Tplie ........... 0800 2 2 1 3 5 13 8 7 8 1 1 1 51 2

Eastern Lowland:-Bratlava/Ivanka pri

Dunaji ........... 0700 4 3 3 6 8 10 12 11 11 6 3 a 79 9-11Brno/Tutany ........ 0700 3 2 4 7 9 10 i1 10 10 2 3 3 72 11-12Koli .............. 0700 a a) 8 10 10 12 14 15 14 9 5 4 110 10-11Ostmva .............. 0700 3 3 3 6 8 9 9 8 7 5 3 4 67 10-11Ushgorod* ........... 0700 5 5 5 9 9 10 11 12 12 9 5 8 94 5-6

Eastern Mountains:Kasprowy Wioroh*,, 0700 8 8 9 8 6 0 8 9 9 10 7 7 95 7-9Lomnlakt Atit ....... 0700 Ii 8 10 ) 7 7 II 10 II 11 11 10 114 8-7SiiaS............ ... 0700 3 2 4 6 7 8 9 8 4 2 1 2 57 7-9

Wimtorn lls1 and Plains:6wkA Budljovio .... 1300 4 11 4 4 2 ,I 3 0 9 I 2 47 7-)Chob ............... 1400 2 4 6 4 4 i 3 2 4 2 2 2 41 4-Ilradve KrAIovd ...... 1300 4 2 .4 h 2 5 (1 h 10 7 i 4 53 4-0Ulixien .............. 1400 4 5 6 5 h 0 .4 8 I 6 :1 3 57 2141ol1/Dobtany ....... 1300 I I 4 4 I .1 3 5 7 6 I I 35 3-4Pradild .............. 1300 4 7 7 4 I 2 2 2 4 8 4 4 46 3-5Prague/ltusynk ...... 1300 4 :3 6 0 :3 4 4 4 7 7 3 3 54 11-12l'libyslav .......... 1301) 3 4 4 4 2 3 2 3 7 7 A 2 43 6-7Anioaka* ............. 1300 0 I 5 4 2 2 3 2 5 7 r, 6 52 10-I1

Iastirti Lowlands:Bratdslava/Ilvanka pri

Dimnaji ............ 1300 4 4 1 4 5 13 8 8 10 10 4 :3 71 9-lIBrno/Ttiany ......... 11100 4 :1 6 5 4 4 6 0 9 7 3 3 59 11-12Kvlimot............. 13100 I 9 8 5 7 8 i II 12 5 5 0 10-11Oatrava ............. 1300 4 4 6 6 n 0 8 1 0 9 4 4 07 10-IUshgorod* ........... 1300 6 .t 6 8 4 7 7 I0 10 12 4 4 8 5-'4

lastern Mountains:Kmsprowy Wleroh* ... 13(1 m 7 0 3I I I 2 3 6 10 8 36 62 0 7Lomniokt Atit........ 1300 8 8 111 0 2 1 12 2 7 12 II 11 77 4-63'0la ......... ....... 13(m 2 2 6 5 ' 2 :1 6 I 9 3 2 ho 7-9

0 Near but otitsdh Cecholovmkin.* <0.5 flay.

-iI39

FiounU 33 (Conginued)

AMMO0N AND MIArION Noun JAN FED MAR APRFA Y JJUL AUG an OCT I c NOVj I C ANN TRB ROO(LST)

Western Hills and Plains:tesk6 Bud5jovhe .... I l 4 3 4 5 4 5 7 7 II 10 5 4 66 8-10Cheb ................ 1900 2 4 6, 5 5 8 4 6 7 4 A 2 58 3-4Hradcj KrlovE ...... 1900 7 5 5 6 3 6 9 8 9 9 5 5 77 4-5Liberec .............. 1000 5 4 7 5 5 8 6 9 8 9 3 3 73 4--5PlAeSl/Dobtany ....... 1900 3 1 a 4 5 6 8 7 10 8 5 3 64 3-4Pradd .............. 1900 7 6 6 5 6 5 4 6 8 10 7 6 74 4-5Prauo/Rlmyn6 ....... 190h 0 a 9 7 7 7 8 8 10 it 5 4 86 11-12Pfibylav ............ 1900 6 0 6 7 6 7 7 8 12 13 6 4 88 7-8Aniefka e ............. 1900 7 6 6 6 8 4 5 5 7 9 7 8 75 10-1I

Eastern Lowlands:Bratiolava/lvanka pri

Dunaji .......... 1900 7 6 8 H 10 8 11 11 16 14 7 8 112 9-11Brno/Tuiany ......... 1900 5 5 9 7 7 8 10 10 12 11 5 5 94 11-12Ko~loe .............. 1900 8 8 10 10 8 8 11 11 16 17 8 7 121 ItOstrava .............. 191)0 4 5 7 7 7 8 9 10 11 10 a 4 87 1!Umhugorod* ........... 1900 8 7 11 10 7 7 9 10 16 8 6 113 5-7

Eastern Mountains:Kaprowy Wierch*,... 1900 t0 0 10 6 4 3 6 6 9 13 0 10 93 7-8Loinioky AMtt ........ 1900 12 10 11 6 4 3 5 5 to 15 I2 to 103 8-7Slina ................ 1900 4 6 8 8 8 . 7 10 10 14 14 7 5 98 8-10

Near but outaide Caeehoslovakla,5** <08 day,

.4

40

'A

Fiount 34. MEAN NUMBER OF DAYS WITH THUNDERSTORM$

1n tON ANT) STATION iN M A1111 A"' MAY T O A ITo MFP OCT NOV IUC ANN *TR, aIg

Western It11ll and Plains:* 7lav .................... * 7 8 7 6 2 0 * ' 88 10

Ncek6 BudgJovlco .......... 0 0 0 2 4 4 6 4 1 0 0 0 21 10Ohob *................... 0 1 2 5 8 7 4 2 * 0 0 2 10Hradeo Krilov 6 ...... * * 2 6 6 6 5 1 0 s '.27 10Libereo, .,, .......... 0 0 * 1 6 7 6 6 3 * 81 toLltomyll, ......... 0 * 1 4 5 5 5 1 0 0 0 92 10MarfAnskdJ.Asi6... .... 0 0 * 1 5 6 6 a 2 * 0 0 ,14 10Mlolovka, ........... * * 2 6 5 7 4 1 * 0 0 26 20

P1e ........... ....... 0 * * 1 5 4 6 6 2 0 0 6 95 1oPradd .................... * 0 * 2 5 5 5 4 2 0 * 0 28 10

Prague .................. 0 * * 2 6 6 7 a 2 0 0 * 29 10

Rolmitil pod Ttenlnanm.... 0 * * 2 5 5 5 4 1 0 0 22 10nietk**, ........... 0 0 * * 4 6 6 6 2 0 " 0 25 &

Tibor ,.......... .... 0 0 0 2 7 a 6 8 2 * 0 27 10TOW* * * 2 6 7 7 a ' * 0 * so to

Teple,................... 0 0 0 2 6 6 6 5 1 * 0 0 95 10MpEterm Lowlands :7

Bratislavs/Ivsnka pri DunaJl. 0 0 0 1 3 4 4 3 I * 0 0 101 29Brno . .... 0 1 4 a 6 3 1 * 0 0 21 101urbanovo ................ * 0 * 2 7 7 7 4 2 * 0 0 29 toKo .... ........... 0 0 0 2 7 9 8 6 2 * 0 88 10

i.4............. ..... 0 ' 2 0 0 6 4 2 * * 0 24 10OpAva...,,....... . 0 * 6 1 4 a 5 4 2 0 * 20 10PieI6any. 0,. . ,....... 0 ( 2 6 7 8 4 2 * * * 20 10Petrov ..... ......... . 2 5 5 2 1 * 0 0,21 toStrilnloo, . * * 1 6 7 8 8 2 * 0 * 81 10Ushgorod** ........... p 0 1 2 6 8 7 5 2 1 * 0 as toZnoimo * 0 0 1 |11 8 6 4 1 0 0 21 6

IEatern Mountains:BankA tiavno. . 0' * * 4 4 4 3 I 0 0 0 17 10Byt if 0.................. 0 * 6 5 4 2 0 ' 0 98 toKprowy Wierh* ........ * * I 5 10 11 6 3 0 0 * 86 aLomno Itt0 0 * 2 4 7 9 7 2 0 0 0 31 10Ly flora ................. 0 * * 2 0 7 8 6 3 * 0 * 31OrAvsky Podamok. . 0 0 ) 1 h 5 6 4 2 0 0 0 22 10.Stpiil kNovo .. , . 0 0 2 h N 7 7 2 0 0 31 10Htr Smkve. , ..... 0 0 8 7 1 0 0 82 10Tren~launko Toplio .... ... 0 0 0 1 6 7 6 4 1 * 0 * 25 107urtinsky Svitl Martin..... 0 1 5 7 6 aJ 1 * 0 0 24 t0o

* <0, day.• Near but outaide Ceohoulovakila.

'I

1(i0ou 35. PERCENTAGE FREQUENCY OF CEILING* <656 FEET AT SPECIFIED HOURS

nIGION AND STATION HOU JAN Fal M.A AR MAY JUN JUL AU P T NOV DU ANN YRB ItM

Western Hills and Plains:4tws6 Bodbjoviou .... 0100 10 II 6 * 0 I i 3 ) it) 15 ( 8-)l1rado KrAlov6 ...... 0100 2 14 2 0 1 2 1 1 2 4 7 0 4 4-5PloSP/l)obhny ...... 0100 5 5 4 3 0 1 2 0 5 8 8 3 4 3-4Prad6d ............. 0100 70 63 64 56 41 44 48 43 47 56 (18 80 57 3-4Prague/Rumsyn ....... 0100 14 9 8 4 2 1 1 1 2 6 18 20 7 11-12Ptlibslav ........... 0100 26 24 19 5 9 3 5 4 4 9 27 24 13 6-8Siekka*** ........... 0100 56 58 53 49 49 44 49 45 48 55 89 50 52 9-11

Eastern Lowlands-Bratislava/lvanka pri

Dunaji ............ 0100 12 10 5 ** * 0 0 0 0 s 1) 17 5 9-11Brno/Tutany ...... 0100 9 8 2 e, 0 ** 1 I I 6 9 17 5 11Kolo.............. 0100 17 to 2 *s 0* 0 * 1 0 a 12 24 6 10-11Ostrava ............ 0100 7 6 5 4 3 2 I 1 3 12 18 11 6 0-10Uahorod*** ........ 0100 7 10 I 2 0 0 0) I 0 1 8 13 4 -7

Eastern Mountains:Kasprowy Weroh*Oe, 0100 47 47 38 48 39 46 41 35 35 33 44 50 42 5-7Lomuiokf tit ........ 0100 32 28 28 40 40 38 45 35 33 18 22 33 33 2-4HIMS ........... ,.... 0100 12 12 2 $* I a 2 2 4 12 8 10 6 8-9

Western Hills and Plains:Ce.eki Budijovlo, .... 0700 13 lB I I 6 4 5 4 a 15 20 20 16 12 8-9Chob ..... ,...... 0800 17 15 14 11 0 7 8 11 14 18 26 17 14 4-8Hradeo Kr&lovd ..... 0700 2 9 7 1 4 2 2 0 5 9 7 7 5 3-4Liberec ............ 0800 17 12 13 10 15 a 4 7 8 0 15 15 11 6-7Pisefi/Dobtany ,.... 0700 2 10 a 6 0 3 2 4 25 23 12 14 10 3-4Pradfd, .,... .. , 0700 69 64 66 64 46563 57 46 41 64 71 72 68 4-5Prsgua/Rusynd ...... 0700 14 17 13 8 a 3 3 2 6 14 21 24 It 11-12Pfibyulay ........... 0700 24 28 21 it 17 1) 9 10 0 22 37 20 19 7-8gnieika*** ........... 0700 60 58 54 56 62 47 50 50 51) 82 68 60 84 8-11Teplice,......... 0800 7 0 1) b a 0 2 0 2 I 10 10 6 2-3

Eastern Lowlands:Bratislava/lvanka pri

bunaj ........... 0700 13 l V 4 1 I 1 so I 2A 5 12 18 6 9-10Dro/Tuany, .... 0700 11 11) 6 1 1 2 2 1 4 10 13 116 6 11-12

Do1io0 ............ 0700 17 16 a 2 2 2 I 21 2 4 11 21 7 10-11Otrava ........... 0700 9 I 12 to 6 3 5 1o 10 111 15 10 10-11

xhsarod*** ........ 0700 10 12 2 1 2 1 0 1 1 a t 13 a -6Eastern Mountaina

Kaprowy Wiereh***,. 0700 47 44 30 48 87 40 37 85 33 06 38 63 40 6-7LomninkI A .......,.. 0700 81 28 81 32 40 211 29 22 25 24 23 31 29 34-81i0 ................ 0700 14 12 9 4 4 2 3 5 25 31 14 14 11 8-9

Wutei 1Hills and Plains:(ek Budiljovic. ,. 1800 8 6 2 2 0 0 2 0 1 6 13 12 4 8-10Cheb ............. 1400 9 10 8 1 3 1 I 3 4 It 18 18 7 4-5Hradeo Krilovd ...... 1300 4 10 2 0 1 'A 0 1 0 4 4 7 3 4-6Ibro ........... 1400 It 6 6 3 7 4 0 0 4 6 14 12 6 6-6PIseIl/Dobtsuy ....... 1300 3 8 1 1 0 1 1 0 4 5 Ii 9 3 3-4Pradd.,. .... 1300 70 63 52 65 54 60 68 64 65 53 66 73 61 3-5Prague/ltusyn....... 1300 11 9 7 2 1 2 1 1 2 6 13 16 6 11-12Pibylsv ............ 1300 21 26 14 6 5 4 a 4 3 7 30 26 12 4-7Anickka*** ........ .1300 60 59 68 87 59 50 59 57 66 5b 60 89 58 8-10

* Ceiling is herein defined as 5-eilihths cloud aover.* * <0,5%.

'" Near but outside Csehoslovakia,

42-

FiURty 35 (Continusd)

RNGWON AND IATArION NU JA S MAt, APH MAY JUN JUL AVIG SUP OW,1 NOV 1UO ANN YES RZO

(LAY)Elastern Lowlands:

Bratillvw/lwanks priDmtji ........... 1300 12 9 2 * 1 1 ** 0 * 2 10 16 4 8-11

Brno/Tutany ......... 1300 I 8 1 1 1 1 0 1 ** 4 8 17 4 11Kolice ............. 130) 14 10 I 1 0 * * 0 0 2 5 19 4 10-11Ostrava ............ 1300 6 6 4 2 2 1 1 2 2 4 it J3 4 10-11Ushgorod*** ......... 1300 It 12 3 0 1 1. 0 0 0 1 8 17 a 8-6

Eastern Mountains:Kuprowy Wicroh***,. 1300 41 41 42 49 39 42 41 88 38 35 41 64 42 b-6Lomnilck Atit ....... 1300 24 25 27 58 75 85 74 67 52 18 27 28 47 2-3SIM ............... 1300 3 2 0 * 0 0 ** 0 1 2 2 8 2 7-9.

Western Hills and Plains:- k6BuddJovioe ... 1900 8 8 2 2 1 0 1 ** 0 3 12 14 4 8-10

hob ....... 1900 8 10 8 3 1 0 0 3 2 10 19 29 8 3-4Hrade Krtlov6. ...... 1900 4 7 0 0 0 1 1 0 0 2 3 6 2 8-5Liberec ............. 1900 12 12 8 4 5 3 1 2 5 6 13 14 7 4-6Pholl/Dobtany ....... 1900 1 0 2 0 0 0 1 0 1 8 5 9 2 3-4Pradld . ..... 1900 8) 61 64 50 39 48 41 40 47 60 70 75 1 4-5Praguo/ltuxytO ...... 1900 9 7 9 1 1 1 1 ** 1 5 13 14 a 11-12Pfibyslav ............ 1000 24 20 14 6 3 2 3 3 1 10 21 26 11 7-8Anielka*** ........... 1900 61 00 56 50 43 41 38 39 47 84 57 50 s0 8-11

Eastern Lowlancds.Bratilalva/IvankA pri

Dunaji ...... . 1900 9 7 2 1 * 4 ** 0 0 0 2 7 13 a 9-10Brno/Tufany ......... 1900 11 F 1 0 0 0 0 0 * 1 8 16 4 11-12Kolioe ............... 1000 10 11 2 0 0 0 0 * 1 1 7 26 5 11Ostrava ............. 1900 7 4 4 3 2 1 1 1 2 2 11 10 4 10-11Ushgorod*** .,...... 1900 9 10 2 0 0 1 1 0 0 1 5 10 8 b-7

Eatern Mountalns:KMprowy Wieroh***., 1900 43 40 41 62 45 46 43 41 88 38 40 49 44 6-7Loninick AM ........ 1900 24 29 33 43 60 89 56 58 43 17 23 82 40 3-4HIMii ................ 1900 4 3 ** 0 0 0 0 0 0 1 3 8 1 2 8-9

* Coiling Is heroin deifind as '5-elghths cloud cover,

**<0,5%.

*** Near but outside Caoohoolovskis,

,E.

~i.

,1

....................................................

Flcumm 36. PERCENTAGE FREQUENCY OF CEILING$ < 1,968 FEET AT SPECIFIED HOURS

REGION AND OTATION HOUR JAN .U1 MAR A MAY J1N I a mp . o.. NOV ,o ANN VhS

- (RAT)Western Hills and Plains:

(bek6 Bud1jovlao .... 0100 32 36 22 16 10 7 5 5 6 18 48 36 20 8-9lradec KrAov6 ...... 0100 15 31 10 1 7 3 5 3 3 11 22 25 11 4-5Plzoil/Dobtany ....... 0100 36 45 23 13 8 7 6 1 7 20 37 .42 20 3-4Prad c .............. 0100 70 03 64 58 40 46 52 47 48 56 60 81 58 3-4Prague/usynd ...... 0100 32 27 17 10 5 4 3 a 5 14 30 38 16 11-12Pflbyslav ........... 0100 55 43 38 18 22 15 13 8 9 24 60 114 s0 6-89nteika ** ........... 0100 56 58 55 49 51 44 49 46 49 55 59 W 8 3 9-11

Eastern Lowlands:Bratlalava/Ivanka pri

Dunaji ............. 0100 27 23 10 3 2 2 2 1 2 6 20 34 11 9-11Brno/Tufany ......... 0100 29 21 7 a 3 2 2 2 2 10 27 38 12 11Koui10 .............. 0100 31 30 6 2 2 2 2 2 2 5 22 30 12 10-11Oitrava ............ 0100 28 25 18 14 10 8 7 4 5 19 28 24 10 9-10Ushgrod** ......... 0100 26 31 8 3 1 1 2 2 1 8 21 31 11 5-7

Eastern Mountains:Kasprowy Wierh**., 0100 49 48 40 80 47 50 48 40 43 86 47 51 46 5-7Lonmniah Atit ....... 0100 32 28 30 41 41 43 40 38 38 18 22 37 84 9-4Sla ................. 0100 32 38 11 1 a 4 3 2 4 14 22 20 18 8-9

SWestern Hills and PlainsSOesk6 lud6jovioc .. 0700 38 44 80 26 15 12 11 11 20 29 48 89 27 8-0

, Ohb ............ 0800 72 69 53 46 44 87 42 47 52 75 80 84 58 4-5Htradec KrA1lov6 .... 0700 16 35 16 2 10 5 3 3 8 15 24 28 14 8-4Liberec ............. 0800 66 66 51 44 41 35 28 84 87 47 64 70 49 -7

* Plsef/Dobtay ....... 0700 40 54 25 13 18 6 4 7 28 35 37 55 27 3-4Pradid ............. 0700 70 66 66 55 48 55 87 46 81 56 72 72 60 4-8Pragua/ltsyn ....... 0700 35 38 22 13 8 6 7 a 7 21 40 42 20 11-12Plbyslav ........ -.. 0700 52 58 48 82 34 22 24 17 20 44 60 59 39 7-8Anteika** .......... 0700 60 56 54 57 54 49 52 52 52 82 59 61 55 8-11'T'opllo ............. 0800 66 45 26 22 16 12 5 4 12 21 49 52 28 2-

Eastern Lowlands:Bratislava/lvanka pri

DunaJi ............. 0700 28 29 14 7 7 6 4 3 4 12 32 35 15 9-10Blrno/Tuany ......... 0700 30 25 18 6 6 6 5 3 7 D1 87 86 16 11-12Kol ............. 0700 35 33 10 6 4 6 5 a 6 8 23 42 18 10-11Ostrav....... 0700 32 82 29 24 20 16 10 0 16 24 36 34 24 10-11Ushgorod** ......... 0700 28 39 9 9 3 9 4 3 6 16 80 41 1 6

Eastern Mountains:Kasprowy Wiero**,.. 0700 50 47 35 51 42 43 43 38 37 37 4f 54 43 6-7Loniniekf 8tt ........ 0700 381 32 33 33 42 34 32 24 27 26 25 32 31 3-8.. a. ................. 070) 36 32 16 11 8 8 6 8 27 38 20 37 21 8-9

*. Western Ifili and Plains:Oesk6 Budljove. 1300 32 31 25 18 10 8 7 4 3 18 43 32 19 8-10Chob ............... 1400 53 43 49 38 31 27 26 30 33 66 75 73 46 4-5fIlrade Krilov6 ....... 1300 22 28 25 0 ) 4 5 3 0 12 20 30 14 4-6Liberc .............. 1400 50 47 31) 28 28 19 3 5 23 42 61 66 31 5-6Plao"fDobtany ....... 1300 30 43 25 13 0 6 6 6 9 20 32 48 21 3-4Pradid ............. 13(10 70 53 54 d0 60 75 75 58 61 56 66 73 65 3-5Prague/Rusynd ....... 1300 27 24 20 1 7 5 4 2 4 18 36 35 16 11-12Pfibyslav ............ 1300 47 40 38 25 19 12 10 8 0 27 58 55 00 6-7Aniceka** ............ 1300 02 t10 50 64 71 72 71 63 58 57 60 59 03 8-10

I _: ' Ceiling In herein defined as '5-eighthe oloud cover,* Near but outside Cmeoholovakla.

*** <0.5%.

i4

Fioumm 36 (Continued)

R100ION iNDl RTATION 11O11H JAN PlD ;lPR MAY JUN JUL, A11() SEPI DIMN ANN YH5 RMEG'

lrati la.v /lvnku priimhaji ............. lW 0 20 24 1) 3 3 4 3 2 4 7 31 :13 13 8-11

BriolTufany ........ 1300 28 20 I0 5 5 5 2 3 5 14 33 3) 14 IIKoiov .............. 1300 31 24 61 5 2 3 2 I 3 5 22 35 12 10- IOCttrava ............ 1300 23 10 19 12 11 5 7 5 0 12 26 23 14 1(1-11Ioihgrod*

t ......... 1300 28 34 13 6 4 4 1 2 2 6 23 41 14 5-6Euatrn Mountains:

Kanprowy Wioroh**.,, 1300 44 42 45 58 00 06 (4 83 40 38 43 55 52 5-6Lonunick Att ....... 1300 24 30 28 60 75 87 7h 71 52 18 27 30 48 2-3Shtad ................ 131 1)30 21 8 5 3 2 2 * 3 10 20 21) 11 7-9

Westiern Hills and Plains:t ooukA Bud6joviom. 1000 '27 28 18 12 a 7 4 2 3 11 39 37 16 8-1(

* Chob ............... 1900 51 58 37 29 29 24 17 25 28 58. 69 83 42 3-4Hradec KiAlov ...... 1900 15 24 9 6 4 2 4 0 ( 0 19 28 10 3-ALibereo ............. 1900 02 03 :32 25 25 14 10 18 24 40 67 69 37 4-5Plauh/l)obfuny ....... 11900 27 30 21 6 a 5 i 2 I 17 30 47 !6 3-4PradId .............. 1000 69 01 65 57 43 50 40 42 51 6l 7) 76 as 4-8Prague/Rusy n6 ...... 1901) 21) 24 18 7 5 2 3 2 2 10 :15 35 14 11-12Pllbyilav 1........... 10(0 43 38 :12 16 11) 8 9 0 8 21 55 84 25 7-8Anielka** ........... 1900 62 (01 0 52 48 46 41 44 49 55h 57 89 83 8-11

Hastert, Lowlands:Brattslava/Ivanka pri

DiiilaJl ..... ....... 10)0 24 I8 10 4 2 1 I * I 5 22 30 10 9-10Brno/'uiany ........ 1000 27 18 IM) 4 2 I I I 31 7 28 34 11 11-12Kolilc .............. 190l0 '29 28 0I 2 1 3 1 1 2. 4 20l 39 11 11IOstrava .. ........ 10 21 20 10 14 5 4 3 4 5 10 24 23 12 10-I .

Uxhgorod** .......... 1100 20 27 7 1 2 I 2 I I 4 21) 33 10 5-7Binturn Mountains

Kauprowy Wleroh**,, 190)0 46 40 42 55 52 53 48 45 43 40 80 49 47 6-7Loniuok$ Att ........ 100 29 :i 34 43 1(3 t10 A8 58 44 17 25 33 41 3-4HlIa ........ .. 1100[ 27 22 8 4 2 3 "* 2 I 1 21) 28 10 1 -0

* Coiling in hortin fliefni ed ms > 5.tlghth cloud t'ovor,

** Near bt outsido Csohollovakla.i, *** <0,8%,

"I

Founa 37. MEAN NUMBER OP DAYI WITH LOW CLOUD AMOUNT -2-.EIGHThR AT SPEOIFIEI) IOUR8

R1GON AND STATION flOVIt JAN VIOD IAlt AI'fl MAYT JUN JUL AUO 8101' OCT FNOV WIC ANN nmR RXV

(,eT)

Western Hills nd Plains:64sk6 Bud~joviec ..... (100 13 I) 15 l5 1 0 16 10 d 8 20 17 7 1) 170 8-9lradec KAlovi ....... 0100 II 8 1P 19 i1 18 I 19 21 Is 1 II 185 4-hPhaeft/l)obtauy ....... 0101 11 14 5 15 16 17 19 It) 10 40 ) 170 3-4Prad6d ......... . 0100 0 10 11 It 13 12 13 14 14 12 8 6 131 3-4Pragut/Rtsyn6%,. ... 0100 13 12 , 18 20 21 21 231 22 18 11 10 207 11-12P1fbymlav ........... 1100 1) 14) 12 18 16 17 18 21 22 17 7 8 174 6-8

........ 0100 I I t( 12 12 12 14 13 14 1311 1 1 1) 11 143 9-11* Eastern Lowlands:"- Bratislava/Ivanka prl

Dmnaji ............. 0100 13 12 18 21 22 21 22 25 24 22 A4 10 210 0-1lBrito/Tufany ........ 0100 12 12 18 21 21 21 23 2:3 23 18 it 9 212 itKoAiae ............... 0100 12 12 111 20 21 20 22 231 23 21 12 9 213 10-11Ostrava ............ 0100 10 I1 1) 17 17 11 18 22 20 17 10 9) 183 0-10tThgorod* .......... 0100 10 10 4it9 14 20 18 21 22 20 20 11 9 109 5-7

Eastern Mountains:Kasprowy Wlureh*... 0100 13 13 t6 13 14 12 14 14 15 18 15 14 173 6-8Ioinnok Atit ........ 0100 18 17 11 14 14 12 I'12 46 17 21 18 14 180 4-5S110 ............... 0100 1 11 I 1 140 21 '10 20 23 22 16 8 1) 103 8-0

Western Hill anil Ptins:"nk6 Budjoviee .... 070 8 i 44 II 14 11 15 16 15 12 0 7 130 8-9011) ............... 0800 0 7 II 12 13 1,1 12 12 9 5 4 5 110 4-8llraduo Krfilov6 . (..1700 1 11 4 4 18 42 201 48 7 10 134 0 8 ISO 3-4hibgruo ............. 1)8001 7 7 i 41 ) 1 2 4 1 4 14 14 11 1) 4 11 5-6Plti/Dobmtany ...... 0700 7 3 12 43 8 44 I 45 16 43 ) 41 5 121 3-4Prad d ............. 07(0 8 14 10 14 0 ( 14 12 12 8 8 121 4-Progue/ltuayII6 ..... , 07010 10 ) 14 40 111 20 11) 21 24) 15 8 8 180 11-12Pflbylav ........... 0711 7 8 14 14 14 4(4 4,4 18 17 l3 7 7 1411 6-8

nleika* .... ........ 0700 40 10 II 12 1 12 12 13 I13 12 4) 10 135 10-11Eamtorn Lowlands

Bratlslava/Ivanka priDtnaji ............ ( 0701 10 44 16 14 20 21 21 2:1 23 48 i 8 lot 9-11

Brno/Tutany ......... (170(0 1 1 15 I48 111 1 4) 21 22 20 43 1) 8 183 11-12K (1 ............... 070 1 4 1 4) 4(0 11) it 1) 24 22 21 48 1 7 190 11-12Ostrava ............. 07011 8 41 13 46 1 04 17 111 17 12 8 8 151 10-11llhhgorod* ........... (17011 ) 94 43 16 17 46 1 41 1to t 4) 11 1 7 166 5-0

*Eastern MouitailimKamprowy Weroh* ... 0701 13 14 18 131 14 13 45 4it 17 17 15 12 177 7-8Loinnlok Atit ........ 0700 10 13 15 10 13 13 1t 10 18 18 18 15 185 5-7810 .................. 0700 8 8 13 1( 17 16 18 20 14 11 5 6 148 8-9

Western 11ills mid Plhinm:N-ak6 Budbov ee .... 1 ( 1( 9 to1 1) 6 8 7 11 14 14, 7 9 114 7-)Chob ................ 1400 12 11 1o 7 7 11 8 (1 8 61 5 7 96 4-5liradeo Krhlov6 .... 1300 1) 7 13 11 1 I 1 10 8 14 13 5 8 112 4-6Libere ............. 1410 9 8 12 8 7 10 7 1) It 8 A 7 102 5Plotfl/Dobtany ....... 1300 8 6 11 11 1 7 (0 8 1I 13 7 8 90 3-4PradId .............. 11(1( 8 11 11 7 4 4 4 6 63 12 1) 8 89 3-5Prague/RtuynA ....... 11100 12 11 13 14 9 9 4) 13 15, 11 14 10 133 11-12Pflbyshv ............ 1310 8 10 1) 8 4 5 4 8 11 12 4 8 01 6-7Aniekka* ............. 1300 9 10 t 7 1 4 5 6 4) Ii 10 11 11 10--11

FEstern Lowlands:Bratlmlava/Ivaimka i1rl

,iDnaji ............. 11300 12 10 13 13 11 11 13 17 17 18 44 11) 162 8-11Brno/Tutany ......... :1() 12 11 13 10 9 I) 10 14 15 14 7 8 130 11-12Kollee ............... 1300 12 13 10 14 11 11 13 17 1to 1o 1) 10 162 10-11O strava .............. 11104) 11 10 13 10 9 10 12 13 15 15 101 10 138 10-11Itligorod* ........... 13(0 13 ) 15 14 11 12 11 15 10 11) 1(0 8 1812 6-7

NoTsy Low cloud herein IN definod as the lowout, cloud layer reported, excluding oirrlforin olouds.* Near but outsido Csooliolovakia.

46n- .

Fiouzn 37 (Continued)

1.1GION AND STATION 11o01 JAN i t x JUN JillAG_, NOV Dig(0 ANN YUI1 I, ,

Emtern Mountains:Ktmprowy Wiorvh*... 1300 16 14 14 8 6 4 5 6 11 17 15 12 128 6-7Lomntk 8tft ......... 1300 18 13 17 10 5 3 4 6 12 20 16 16 139 4-6SI ................. 1300 10 10 13 9 5 8 9 13 15 15 8 10 125 7-9

Western 11111a and Plains tOcek6 Budjovice .... 1900 11 9 12 11 12 13 1.1 17 18 17 8 9 149 8-10Ceob ................ 1000 X 10t 15 12 12 14 13 13 14 a 8 0 136 3-4 +H4radeo KrAov6 ...... 1900 13 9 14 12 13 18 10 17 16 17 11 9 184 3-5

Libere ............. 1900 7 7 12 11 11 15 131 16 13 12 0 8 132 4-5PIscth/Dobtany ....... 1900 12 8 12 12 8 14 15 16 17 16 10 10 149 3-4Prad~d .............. 1900 8 8 9 10 12 11 12 14 12 12 8 7 122 4-8Praguel/usynd ...... ' 1000 1s 13 17 10 17 18 18 21 21 19 10 10 194 11-12Pflbys)av........... 1900 10 it 14 15 14 16 18 19 20 18 8 9 171 6-8

............. 1900 10 9 11 It 11 12 13 13 12 12 11 10 185 10-12Eastern Lowlands

Bratlslava/Ivanka priDunaJl ............ 1900 15 Il 16 17 20 20 21 24 22 21 11 11 211 9-11

Brno/Tufany ......... 1900 12 12 17 15 19 19 19 22 20 19 9 9 191 11-12Kollos ............... 1900 13 13 18 17 18 18 18 21 20 22 12 10 199 I1()strava .............. 1000 10 13 14 13 18 10 18 19 18 17 10 10 171 10-11Ushgorod* .......... 1900 11 10 19 17 16 15 17 16 20 21 11 9 183 b-7

Mlatern Mountains:Kasprowy Wioruh*.. 90O 15 14 15 11 12 10 10 12 15 17 14 14 159 7-8Lonnlok Att ........ 1900 17 15 16 12 8 9 8 11 14 20 10 15 161 5-78114a ..... ....... 1900 1 1 ' 116 15 17 17 20 22 20 18 10 10 188 8-10

Nors Low cloud heroin Is dotllned mw the Iowtmt aloud layor reported, exludhig oirriformu clouds.

Na but outaido Usooumlovakia,

Fiounm 38, M1,AN NIMBIIUI OF IDAYS WITH LOW C,01) AMOUNT t1.I'I(t|['1'1IM AT 8PI,1I0DI01) 110UR8

,t0ttON AND TA HU'rtoN .. .. T ......... ANN Vill U11

" ' (LWP)Westorn l llls and Plains:

Comk6 Bud Jovoo .... 0100 17 161 14 12 It I1 10 7 6 11 20 19 151 8-9lI-radoo KrAov6 ....... 0100 16 17 1: 8 9) 7 9 8 0 10 18 18 188 4-5PISoU/l)obhuty ...... 0100 17 18 15 i 11 10 8 7 8 13 17 20 155 8-4Pradld .............. 0100 22 18 20 18 16 15 10 15 10 17 22 25 220 3-4Praguo/Rusyn6 ...... 0100 15 13 10 7 7 0 6 4 4 11 17 18 118 11-12Pfibysiav ........... 0100 20 17 17 20 13 9 9 8 0 12 V 2 21 103 G-8Ancieka* .......... 0100 18 A6 18 10 17 14 10 15 15 18 19 10 202 9-11

Eastern Lowlands;Bratislava/lvanka pri

IDunajl ............. 0100 12 1I 8 4 3 3 3 3 3 1 13 10 86 9-IlBrno/Tuany ........ 0 10 14 13 U1 0 5 4 3 4 1) 17 20 107 11Ko1ioo ............... 0100 110 13 7 5 5 5 5 3 4 7 13 18 102 10-11Ostrava .............. 0100 18 13 12 10 8 7 8 5 0 11 10 17 131 9-10Uzgorod* ........... 0100 19 17 11 10 9 9 7 6 8 10 18 21 144 b-7

Eastern Mountains:Ksprowy Winroh0. . . 01o 10 l 13 15 14 15 14 13 12 11 13 16 166 6--8Loniloky Stt ........ 0100 11 10 14 13 15 15 111 14 11 8 11 1 152 4- .RI1 . .......... 01(0 i7 15 1l '0 0 7 5 4 8 11 19 20 127 8-9

Wtstorn 11111s and Plkahm:I,Omk6 l(imdjovoo .... , 0700 19 18 15 13 10 10 10 7 11 15 21 20 19 8-9Chb ............... 0800 24 19 18 15 14 14 13 15 18 22 23 25 218 4-5l1radeo KrAiov6 ....... 0700 14 19 10 h 11 5 8 7 10 13 10 17 130 3-4Libu'e ............. , 0800 22 18 lb 16 14 13 13 12 10 11 22 24 205 &-Psof/lJnb any ...... 0700 21 23 14 13 14 10 10 9 13 18 20 23 188 3-4Pr8d .............(0700 22 18 22 17 15 10 18 15 10 17 22 23 221 4-5Prague/Ruuynd....... 070(0 Ill 10 12 8 6 4 6 4 5 1I 18 18 1212 11-12Pflbyalav ............ 07U0 20 1 17 13 !4 10 12 9 10 10 21 22 183 6-'8

..n ka*........... 0700 19 61 17 16 17 14 16 15 15 17 I2 20 211 10-1 I

8. foatnotm t end of table,

-.-----.

FiGunt 38 (Continued)

REGI1ON ANI W1'AVI()N H10.31 JAN FEBu MAkl APII MAY JAN JUL AU E ICT NOV IDEC_ ANN YI1. IIEC

(LST)Eastorn Lowlands:

Brat'Blava/Ivanka priDunaji ............. 0700 15 13 9 5 4 3 3 2 3 7 15 16 97 9-11

Brno/Tufiay ........ 0700 15 14 11 7 6 5 4 4 5 12 17 18 110 11-12Kolice .............. 0700 17 14 9 5 6 6 5 4 5 8 15 19 112 '11-12Ostrava .............. 0700 17 14 14 11 10 7 7 6 8 14 16 18 142 10-11Uzhgood* ........... 0700 20 18 15 11 10 11 11 9 8 12 20 23 167 5-6

Eastern Mountns:Kasprowy Wiaroh* .... 0700 15 13 11 14 13 14 13 11 10 12 12 17 154 7-8LomninlaSoktt ........ 0700 14 14 13 12 14 14 12 11 10 11 11 1i 149 5-7Sla ............... 0700 18 17 14 8 7 8 6 0 12 20 19 20 156 8-9

Westorn HIila and Plains:eskd Budtovice. 1300 15 14 1.5 12 12 10 10 7 7 10 17 15 144 7-9

Cheb ............... 1400 17 14 15 15 17 12 13 15 10 20 22 21 196 4-SUradeo KrAlov ....... 130) 15 17 10 0 11 7 11 8 7 11 18 17 141 4-6Liborec. ,,.. ...... 1400 19 15 15 13 15 11 11 12 12 17 20 22 182 5Pisefi/Doblany ....... 1300 17 18 14 12 17 ) I 10 9 11 16 19 163 3-4Pradbd .............. 1300 22 15 17 19 20 21 20 15 17 17 20 22 223 3-5Pragtt/Ryn ...... 1300 12 11 12 0 8 5 7 4 4 9 15 14 110 11-12Pi4byhlav ........... 1300 13 16 10 13 15 13 1 10 10 13 22 21 178 6-7Aniekka*............ 1300 10 16 18 18 20 21 20 10 18 17 !8 18 222 10-11 I

Eastern Lowlands:Hratiglava/vanka pri

IDunaji ............. 1300 12 12 9 6 6 5 4 2 4 6 14 14 93 8.11Brno/Tufauy ......... 1300 14 I1 11 9 8 5 0 4 6 10 17 17 117 11-12Koice .i.......... 1300 15 11 7 6 6 6 4 3 5 6 12 1 07 1-, 1Ostrava .......... 1300 12 11 11 10 10 7 6 6 7 9 13 14 115 10-11Uthgorod* ........... 1300 10 16 12 11 12 12 10 8 8 0 17 21 151 6-7

Eastern Mountains:Kasprowy Wioroh* .... 1300 13 13 14 18 19 20 18 19 15 11 13 17 187. 8-7honin;lct 9tlt ........ 1300 11 12 11 18 22 24 22 21 15 10 11 13 188 4-6

81.. ........... 130)0 1)1 12 12 1) 10 8 7 5 61 9 17 18 127 7-9

Western Hills and Plains:Cok6 Bud jovio..... 1900 15 15 14 10 9 7 7 6 f0 9 18 19 134 8-10Cheb ................ 1000 17 15 11 14 11 9 7 8 9 18 19 23 163 3-4Hradoe ICrMov ....... 1900 16 Is 12 9 6 4 7 5 7 10 14 17 121 3-5Libern ........... 1900 22 18 15 13 12 8 6 8 I1 10 22 21 171 4-5Pleofi/Do itany ....... 1900 17 17 15 10 12 8 8 7 8 12 17 20 149 3-4l1tadthd .............. 11))) 22 18 21 16 13 1 13 13 15 18 21 23 208 4-5Praguo/Rutsynd ....... 1900 13 12 9 0 5 t 4 2 4 8 17 10 100 11-12Pfibyslav .......... 1 10 10 16 13 10 8 7 6 6 61 10 20 1 139 0-8gnieika* ............. 1900 20 17 18 16 161 12 12 13 15 17 17 19 193 10-12

Eamtorn Lowlands:.Bratimlava/Ivanka pri

Dunaji ............. 1000 12 10 7 4 3 2 2 : 3 4 13 14 76 9-11Brno/Tfitany ......... 1)00 14 11 8 6 4 3 3 2 5 8 16 18 91) 11-12Kogine ............... 191) 14 i1 8 5 5 4 4 4 4 5 13 10 92 11Ostfrava. .............. 1000 14 11 9 1) 7 0 4 t i ( 10t 15 111 10-11TUzhgorod* ........... woo 19 16 10 0 10 ) 10 9 0 9 16 21 144 5-7

Eaitern Mountains:Kaprowy Wiereh*.. . . 1000 in 12 14 16 14 14 14 13 13 13 14 10 106 7-8Lomniok 9tit ........ 1900 II 10 13 16 19 17 18 15 14 9 12 Is 169 8-7

11a..............1011 16 12 11 7 5 4 3 3 4 8 161 10 10g 8..I)

NOTIO Low aloud horoin is dollned as the lowvmst cloud layor reportod, excluding cirriform olouds, INear but outside Czehoelovakla,

mI

havmFw 39. PERCENTAGE FREQUENCY OF VISIBILITY < MILE, AT HPECIFI) IHOURS.tOIN-ND ,TZN ouR JN I EI Ml A I. j A UN J A -,t. I I, [o ( ' fn,, - -

RMUI N A D 1TATON 10unNOV DZ0 ANN YRZ IIUGI (LOTr)Western Hills and Plains:

S. (,'emk6 bud6jovice .... 0100 4 101 6 1 1 i 1 1 6 13 8 9 5 8-9iiadoo KrAlov6 ...... 0100 2 18 4 0 2 1 2 3 5 10 7 8 5 4-5.'lzeiI/Dobtany ....... 0100 12 18 4 8 1 4 2 1 16 21 17 30 11 3-4

Praid............. 0100 67 68 60 0 36 40 44 41 47 53 68 78 54 3-4Praguo/ltuzyn6 ....... 0100 7 7 3 2 * 1 0 2 6 11 13 4 11-12Pfibyslav ........... 010 5 7 (1 1 5 2 4 2 5 6 8 9 5 6-8gu 01k00 ........... O 53 54 51 44 45 40 45 40 40 53 5) 57 49 9-11

Eastern Lowlands:Brat.ilava/Ivanka pri

Duumaji ............ 0100 8 8 2 * 0 0 * 0 i 3 6 9 a 9-11Brno/T'rfany ......... 0100 5 5 2 * 0 1 1 1 8 4 9 3 1IKolio ............... 0100 10 12 1 * * 0 0 * 0 2 9 17 4 10-11Ostrava ............. 0100 2 8 2 2 3 I 1 2 5 10 11 6 4 9-10Ushgorod** .......... 0100 8 1 I 2 1 0 0 1 0 0 3 6 16 4 5-7

' Eastorn Mountains:Kasprowy Wloroh**,, 0100 45 42 38 42 36 43 38 M1 31 28 41 45 38 5-7homnlok$ AIt ........ 0100 32 28 31 40 39 40 45 35 33 18 21 31 33 2-4Slima .............. 01(10 21 21 3 2 3 b 3 3 11 19 8 14 9 8-9

WNetern Hills and Plain4:Ck6 Budijovioo..... 0700 6 13 7 7 4 5 3 7 24 27 15 12 iI 8-90hob ............. 0800 16 26 17 8 7 8 4 17 25 14 14 1 14 4-h

I liradu, KrAlov6 ....... 0700 2 18 12 5 7 2 3 2 10 19 14 to 9 3-4Llbereo .............. 0800 10 8 10 6 9 1 1 7 6 9 12 12 7 5-7Ploti/I)obtany ....... 0701)0 15 23 23 14 ) 6 4 7 41 40 22 26 20 3-4Praddd .............. 0700 67 62 62 62 42 44 54 31) 40 51 70 69 55 4-5Praguo/ltusyn6 ....... 0700 1) 14 8 :1 I * * 2 10 17 13 12 7 11-12Ptlbyolav ............ 0700 ) 10 7 6 7 1 3 5 10 17 12 10 8 7-8noika** ....... . 0700 57 54 51 52 48 42 47 45 48 512 57 57 81 8-l 1

Toplico ............ 0800 17 18 24 5 6 0 2 2 3 7 21 22 11 2-3Eastern Lowlands:

bratlslava/lvanka priD)unaji ........... 0700 9 12 5 2 0 0 0 I 2 8 8 11 5 9-10

llrno/Tufany ........ 0700 8 8 6 1 * 0 2 2 5 15 11 11 6 11-12Kogico .............. 0700 II 13 4 1 * ) * * 2 7 8 15 a 10-11Ostrava . ......... 0700 4 8 1(0 4 3 2 1 2 8 16 13 6 6 10-lIUshgorod** .......... 0700 14 14 I 1 0 I 0 0 2 6 7 11 a 6-6

Eastern Mountains:Kasprowy Wiroh**., 0700 44 41 29 45 32 35 36 31 32 32 38 51 37 57Lomnnicky tit...... 0700 31 27 30 3'2 40 :11 26 21 24 21 23 32 28 3-5Slifa ............... 0700 20 23 0 6 8 2 4 13 36 :47 16 21 16 8--9

Weustorn Hills and Plains:,oskd Bud6jovloo .... 1300 4 4 2 0 0 * 0 0 0 i 3 7 2 8-10

Chol, ............... 1400 10 1) 3 I 0 ( ) 0 0 I 4 9 3 4-5II adoo Krftov6 ...... 1300 3 7 31 0 0 0 01 0 0 1 2 7 2 4...6Lilboroo ............. 1400 1 3 I 2 I 1 0 0 0 1) 2 5 5 2 5-6Pluof/l)ubtany ....... 100 9 11 2 0 0 1 ) 0 0 0 8 18 5 3-4PradId .............. 13100 00 44 4:1 39 27 35 23 2, 45 67 73 48 3-4Pratguo/Rusyn6..... .1300 3 5 3 (0 0 0 0 0 2 5 8 2 11-12Pflbyslav ........... 1:100 2 3 2 1 0 0 0 0 0 0 4 5 1 6-7gniaAka** ............ 13(0( 58 55 h 1 42 :37 :32 34 ;33 41 5M 58 57 46 8-10

Eastern Lowlands?Bratslava/Ivanka pri

Dunaji ............ 1300 7 4 * 0) 0 ) 0 01 0 1 3 7 2 8--IlBrno/Tufany ......... 1300 5 4 0 0 0 0 (1 0 0 1 1 9 2 11Ko( ce ............... 1300 11 0 1 0 0 0 1) 0 0 1 I 1 :1 10-11I

Omtrava ........... .. 1:100 3 I 2 ) ) 0 * 1 0 I 4 6 1 10-1IUxhigorod** ......... 13010 K I 1 0 ) 0 0 (i 1 0 5 10 3 5-6

Essturzi Mountains:Kasprowy WIlrth** . 1:100 37 3 4 38 44 :14 34 20 30 3 3 33 40 52 37 ,-10Lomnliki Atit ...... 1300 24 24 27 12 71 75 01 60 48 11) 26 27 44 2-3lia5 .... . 1300 6 6 * * ( ( ) 0 (1 I I 7 2 7-11

se fotuotes at end of table.

S-4

Flouili 39 (Continued)

ItMOION AND WrATION HIOUR A MA AR MAY JM I . ANN YligH18

Western I ls and Plains:('p sk6 13&(I(jovhv ..- 1900 3 6 1 i 0 0 0 10 3 It 1) 2 8-10Ohwh ................ 2100 i I1 7 1 I 0 0 d 0 1 0 2 7 8 3 3-4II rai('o KrvAov6 ....... 1)0 3 11 2 0 0 0 1) 0 2 3 (1 2 3-5I i -vo .............. 1IM r 2 '2 0 0 0 1) I 5 11 3 4-5PIlzi/)obfniy ....... 11)00 II 11 7 i) 0 1 0 0 0 i 7 27 6 3-4Prad d .............. 1000 6) 60 61 48 31 38 33 32 42 A511 71 71 51 4-5Pragou/Rlusyn6 ....... 100 .1 5 4 1 0 0 0 1 * 3 7 10 3 11-12Plbyahv............ 11100 4 3 I 1 ) ) 0 ) 3 4 5 2 7-8AnIetk)** ............ 1900 50 52 4 6 38 33 31 34 43 52 56 58 47 8-11

Br"lh~Lm~vaulka pri

D1nnJI ............. 1900 4 5 2 0 0 ( 0 1)0 0 0 2 7 2 9-10Brou/'ltiftny ......... 100) 5 3 I * 0 ( 0 0 1) I 11 II 2 11-12

).). 1)) I 8 I 0 0 0 0 0 )2 14 3 11Ostava .............. 100) 3 4 2 I 1 * 1) * ) 2 6 7 2 10-11lIv)Ihgorod** .......... 19)0 12 1) I ) 0 0 0 1 0 I 5 13 4 5-7

*1."a1qtt'rn 40)11 tuinieKusprowy Wioroh** ... 1910 41 36 i8 47 42 40 38 33 34 36 4A 44 31) L-7Lomnlok tft ........ 19}0 24 28 8 1 42 56 5 4 52 A5 40 10 22 33 348 3-4

*lii................. 1 !1900 18 8 1 0 0 0 0 0 1 3 1) 3 8-1)• <01,5%, '

Nour but outside Cmwhoumlovikla.

F1iovim 41), PMtlINT'rPAitI' 1ltIQUINOY .F10 VIII1 , I'I'Y <2,1/2 MI11414 A'T 8I 4101,'II1) IIOURIS

10aulON AND) WLATLIoN HOUR1 JA F111 MRJ 1t MAY JVN JUl. TU 41 c NOV IOU~ ANN YUK nIM

WeViturn I1 Ial1 1d laom:

C 'k5 14udtjuvloo ..... 0100 34 4 24 8 7 5 7 (1 It) 29 361 41 22 8-1Ilrmdto KridovO ... . 0100 20 41 20 :1 0 4 II 8 12 29 30 35 19 4-51Pl, i/l)obhy ...... 100l)1 61) (18 35 1I 18 26 21 1) 4o 6 7 2 01) 41 3-41Prattc1~ .............. 01t0 17 63 61 5 0 37 41 47 41 48 53 IS 8O 55 3-4Praguo/luzyod ....... 0101 23 31 18 0 3 2 3 I 7 17 2 8 31 14 11-12I'llbyelov ............ 0100 35 4)) 4 21 1 14 I1 5 10 14 22 35 35 21 6-8Alohkn*..,........... 0100 53 55 52 44 416 11 45 41 47 54 A1 88 50 9-11l, 118torn lowhltldc

IBratilavt/Ivanktk pri1)unnJl ............ 0 100 32 31) 13 1 2 ** I 9 1 17 219 It 0-11

Ilruo o/l'huly. ........ 11101) 30 30 15 2 i 2 2 4 4 I1 21 11 13 i1Kog1cu............ 0100 32 31 8 1 * 1) I I * 7 1 i3) II i .10-11Obtu vn.............. .0100 35 431 36 21) Ir, I I S 1I 21 38 44 35 26 0-10UZhlgorod* . . . . . . . . . . . 0 0I)) 20 20 1) 2 I 2 2 I I 0 17 :15 t0 A.7

leattt'tu N ou'I ttAlu-t:Ktkprowy WVhirI .... 1)100 45 4:1 35 41 311 43 .' ,11 :it31 30 41 45 38 5-7Lonmiok, Atlt,...... .100 32 21) 311 4) 40 41) 45 '3) 33 18 21 311 33 2-4MlaSH................ 010)0 52 82 I) i1 7 8 5 #6 18 30 32 48 24 8-0)

Wat'terI I 111 nsM zin(ImM BuIhtjovhiuv .. 171 38 ,) 34 21) 23 I 18 21 49 41) 41 45 35 8-1)choh ................ 00) 1 (17 , I 30 21 U8 31 40 47 48 86 (14 510 4-5Ilradoo KrMov ....... (7) 33 48 41) 16 32 17 2', 22 41 A3 41) 43 35 3-4IIborou .............. 1011) 02 48 36 28 32 8 I 11) 27 28 38 53 33 5.-71'lS/l)ohhmy....... .(701) 50 67 46 52 434 311 25 25 (17 69 50 (111 5 1' 3i-4Pradd ............. 07011 (i8 (13 52 45 41 57 41 47 51 7) 71) 511 4-5l'ragmv/ltisyn16...... 171)00 25 .13 37 21 10 10 7 12 23 31) 37 14 25 11-12I)Hly*htv ............ 07110 36 V12 21) 21 20 1:1 II IN 25 35 :32 11) 27 7-H

)............. 0700 7 64 52 52 48 43 47 45 48 83 57 58 ) H-11''up o ............. (1 3 51 71 43 24 H 17 21) 30 40) 59 () 42 2-A

Boa footnotes at end of table. :1

r00I

Fiuaa 40 (Continued)

1tOUION AND WTATION HlOURt Jk Fb H UJAF~F ~~ ANN 6RS ORV

(OAT)Eastorn Lowlands:

Bratlslava/lvanka prlIi I)unaJi............. 0700 33 42 27 11 4 3 3 4 16 27 35 34 20 U-10

Brnof'uany ...... 0700 37 40 39 17 8 5 7 14 23 50 42 37 27 11-12KoAice ............... 0700 34 35 14 3 2 2 2 12 3 18 28 38 15 10-11(0)trav ............ 0700 38 51 40 27 18 16 9 21 29 37 46 37 31 10-11Umhgorod* ........... 0700 83 35 13 3 2 4 4 4 10 13 24 35 15 5-61

Eastern Mountains:Kaspruwy Worch* .... 0 7 0 0 4 4 4 2 2 9 4 5 3 2 3 5 3 6 3 2 3 2 3 3 3 8 5 1 3 7 5 -7LomuIok$ Ati ........ 0700 32 27 31 33 41 30 28 22 24 21 23 32 29 3-881i5.............. 0700 50 57 33 20 22 17 20 32 53 50 43 46 38 8-9

Western I ills and Plains:"NAk6 Bud~jovIco ..... .300 27 37 15 5 1 3 8 1 8 18 23 38 15 8-10Chob ................ 1400 50 44 21 4 5 4 2 7 5 17 29 44 20 4-8Itradoo KrAlov6...... 1300 30 42 14 0 1 1 2 2 0 19 29 34 15 4-6Libtrn .............. 1400 45 24 13 6 8 6 1 2 10 12 22 34 15 8-6Plstm/)obtauy. ....... 1300 51 37 16 9 2 0 1 4 14 28 30 60 21 3-4Prad6d .............. 1300 70 50 43 40 26 28 30 24 29 47 68 75 45 3-5Praguo/Rtuyad ....... 1300 25 31 14 2 1 1 1 1 5 12 20 29 12 11-12Pfibyslav ............ 1300 28 28 10 4 1 2 1 2 3 7 26 29 12 6-7Aninlka* ............. 1300 59 57 52 43 37 33 34 34 42 50 50 88 47 8-10

Eastorn Lowlands:Bratllava/Ivanka prl

Dunaji ............. 1310 36 29 8 1 $* ** I) 0 * 5 1H 33 11 8-11Brno/'Tutany ......... 1300 31 28 7 ** 1 ** I 7 19 37 11 11Koioo ............... 1300 33 21 8 ** 4* ** 0 *4 ** 3 14 32 10 10-11Ostrava ...... ....... 130) 30 28 23 6 3 2 3 1 11 II 20 32 15 t)- I-ihgorod* . . . . . . . . . . . 1300 38 34 5 2 1 I 0 I 2 5 17 35 12 5-60

Eastern Mountains:Kasprowy Wilroh*., 1300 40 37 39 44 34 34 29 30 33 33 40 54 37 5-0Lonlok At~ t ......... 1310) 25 25 28 55 71 79 70 60 80 10 26 28 45 2-31Slad ................. 1300 60 48 12 4 0 * 0 1 l0 10 49 17 7-

Western Ifille and Plains:&osk6 lBud6jovio ..l... 1000 33 41 16 6 2 1 2 1 4 15 27 39 16 8- 10Chob ................ 1000 63 48 25 8 4 1 3 1 6 t 40 57 22 3-4

Hradeo KrAlovS ....... 1900 31 43 22 2 2 2 2 2 8 21 30 40 17 3-5Libercc .............. 100 5 54 16 8 7 4 I 3 13 22 45 65 25 4-5Plaot/,)obhtany ....... 1(00 59 57 19 5 is 2 2 1 14 3A 40 62 25 3-4Pradld .............. 1000 01) 66 62 51 32 40 30 34 45 57 72 74 83 4-APragul/Itusynd ....... 1900 26 36 10 5 1 1 4* I 4 1 30 3 14 11-12l'i byslav ............ 11100 1 27 10 6 2 3 2 2 :1 II 29 30 14 7-8

nhikma ............ 1000 61 57 54 45 31) 33 32 3,1 44 52 80 58 47 8-11Eiasturn Lowlands:

Bratl slva/Ivanka prilunajl ............ 1900 33 27 16 2 0 0 0 I I 6 14 :1 II 1-10

liornul'utany ......... 1000 :34 29 14 3 * 0 3* 14 24 36 13 I-I 12

Kofto .. ............. 100)1 30 28 7 0I 1 1) 1 0 3 Ib 85 11 11Ostrava .............. 1900 33 40 28 12 3 3 2 1 it) 19 30 37 Is O- IIUshgorod* ........... 1900 3 2 3 2 6 2 I 2 0 I I 4 2 0 36 11 8 7

Eantorn Mountatns:, Kumprowy Wloroh*.. 1900 42 17 38 47 43 40 35 33 34 35 45 46 40 0-7

l,omnickj Attt ........ 1000 24 21) 31 42 51 57 52 55 40 16 22 33 38 8-481nt8 ....... ..... . 1110)0 149 38 13 2 * 2 1 . * 2 7 27 30 14 8-0 1

*?' '* Numr but outslde CaechoslovakL',a ** <0,5. o

*.

.1

Fiolnz 41. PERCENTAGE FREQUENCY OF VISIBILITY <6 MILES AT SPECIFIED HOURS

100GRON AND tITATION HOURl (AfnM t AP MAY JUN M~t AUO asU 011T NOV DC ANN Via RMO

(L~r)Western Ills and Plains:

teskd Bud5jovluo. 0100 68 73 63 51 43 46 47 36 40 70 73 77 58 8-9Hradoc Krf.lov6 ....... 0100 81 77 71 26 38 33 43 36 44 70 76 74 56 4-5Plefi/Dobtany ....... 0100 87 90 80 70 74 (00 77 53 81 85 83 94 80 3-4Pradd ............. 0100 60 (15 07 55 42 45 55 45 52 55 70 81 58 3-4Praguo/Iluzyn6 ....... 0100 50 05 52 32 24 25 26 20 32 55 64 59 43 11-12Pftbyelav ............ 0100 68 71 50 41 44 35 34 28 41 54 70 74 52 6-89nlocka* ............ 0100 583 59 53 48 48 42 48 42 49 565 9 58 51 9-11

Eastern Lowlands:Bratislava/Ivanka pri

Dunaji ............ 0100 67 67 51 18 19 13 14 11 25 45 62 71 89 9-11Bro/Tufany ......... 0100 68 72 54 31 20 20 32 32 37 65 63 70 48 11Koxico .............. 0100 62 04 31 14 7 8 13 8 10 29 51 62 30 10-11Ostrava ............. 0100 71 78 74 61 57 59 48 52 59 71 77 73 65 0-10Ushgorod* .......... 0100 69 47 20 10 9 8 13 15 22 31 46 58 29 5-7

Eastern Mountains:Kamprowy 'Wierh*,., 0100 45 43 36 43 37 15 39 32 31 30 42 40 39 5-7Lognnick Atit ....... 0100 32 29 32 40 40 42 46 36 33 18 21 32 33 2-4811 ................. 0100 80 79 56 28 30 33 84 41 41 65 88 77 63 8-9

Western Hills and Plains6esk6 BudbiJovice .... 0700 69 72 02 65 56 49 47 47 04 07 73 74 62 5-9Chob ............... 0800 89 80 73 60 51 69 62 74 77 78 88 94 75 4-6Hradec Krlov6 ...... 0700 70 77 78 48 71 50 63 64 69 83 76 78 69 8-4Liberec ............. 0800 88 84 66 560 58 47 42 40 65 61 67 81 63 5-7PliseA/Dobany ....... 0700 88 91 78 73 74 65 67 51 80 71 75 91 75 3-4Pradd ............. 0700 70 08 67 66 49 52 00 46 52 54 71 72 60 4-6Praguc/ltumyn6 ...... 0700 50 75 79 68 49 50 47 49 62 74 78 62 62 11-12P byslav ........... 0700 61 78 00 80 60 39 42 38 45 67 60 72 85 7-8

nileAka* ............ 0700 58 5 53 560 61 48 51 47 61 83 58 58 58 8-11Toplloe .............. 0800 92 86 89 55 54 37 45 04 61 79 89 89 70 2-3

Eastern Lowlands:Bratislava/Ivanka pri

Dunaji ............ 0700 69 74 62 38 31 25 27 28 87 61 73 71 80 0-10Brmo/Tufany ......... n700 74 81 72 50 47 49 57 57 00 72 72 75 04 11-12Kolloe .............. 0700 65 60 40 26 10 20 18 19 26 43 53 89 39 10-41Ootrava ............. 0700 60 82 77 66 64 58 52 57 00 70 77 71 67 10-11Uslihorod* .......... 0700 04 58 28 19 12 13 12 14 '22 42 45 60 32 6-6

Eastern Mountains,Kasprowy Wirah*. 0700 44 45 30 40 32 36 36 32 32 34 38 53 a8 5-7LomnicitStit ........ 0700 33 27 31 34 41 30 30 22 24 22 24 32 20 3-8Sh1ad ................ 0700 84 82 04 50 59 40 57 62 75 78 72 78 07 8-9

Western 11111m and Plains:Cesk6 BuddJovio .... 1300 53 619 44 22 12 10 15 9} 22 40 59 53 35 8-10Cheb ............... 1400 82 036 43 23 21 23 10 22 29 51 60 77 43 4-5Hradeo KrAlov ...... 1300 07 72 41 13 17 10 13 12 11) 35 50 05 35 4-0Liburo .............. 1400 81 63 42 22 21 14 14 15 29 42 55 74 39 5-6Ploof/iDobtRany ...... 1300 71 00 47 36 20 12 8 12 39 03 00 81 43 3-4Praddd .............. 1300 72 )4 47 46 31 30 42 33 35 40 60 76 40 3-5Praguo/tuzyn6 ...... 1300 54 58 45 1 11 13 12 it 21 41 50 01 34 11-12Pflbyslav ........... 1300) 50 59 32 18 12 i1 0 8 () 24 51 58 28 6.7Aniouka* ............ 1300 60 58 53 47 4(0 39 37 38 40 50 59 50 49 8-10

Eastern Lowlands:Bratilava/Ivanka pri

D1unaji ............. 1300 02 03 32 10 5 (1 4 3 10 29 51 61 28 8-11Brno/ftfany ........ 1300 03 (10 33 8 5 5 4 0 12 32 49 62 28 1Koiio .............. 1310) 58 57 23 01 3 4 2 4 5 20 40 50 24 10-11Ostrava ............. 1300 01 67 54 34 27 23 21 23 28 40 5 513 41 10-11Ushgorod* .......... 1300 (13 53 22 1) 4 ( 3 5 7 17 35 58 24 5-6

Easton Mountains:Kaprowy Wiorh* ... 1300 42 37 39 4,1 14 31 30 30 33 33 40 56 38 5-6Lonnlok.9 Atit ........ t13)0 25 25 28 511 71 A3 72 60 50 1i) 20 30 45 2-:3SliaS ................ 1300 78 77 , 12 5 7 7 7 I1 41 57 75 35 7.--

Aes footnote at end of table.

52

Fiouivi 41 (Continued)

R.GION AND 1TATION HlOUR JAN IERU MAR APR MAY JUN JUL. AUG Smp OCr NOV DEC ANN -S Y DO

Western Hillm aind Plaina:(NskA Budijovice .... 1100 04 70 50 24 11 1i 9 8 19 42 69 71 37 &.10"h.b ............... 1900 84 75 44 24 18 20 11 13 31 48 77 93 45 3-.4

p Ilradvo Kr.luv6 ....... 1900 75 74 70 20 10 11 12 13 47 57 64 73 44 3-5liberoo .............. 1900 94 00 50 23 24 13 10 23 40 65 87 100 52 4-11IPl'vi/l)obtany ....... 1900 82 86 59 29 23 16 11 7 40 74 74 88 40 3-4Prad6d .............. 1900 71 09 67 53 38 40 40 14 52 00 73 73 57 4-SPragt/Iuxyn6 ...... 1900 00 68 03 27 10 11 15 12 29 53 67 64 40 11-12Pibyllav ........... 190(0 86 52 42 18 12 13 10 12 21 41 59 64 33 7-8,nletka* ......... 1900 01 60 57 52 47 40 37 39 49 54 57 59 51 8-11

Eastern Lowlands:* Bratialava/Ivanka pri

DuaJi ............. 1900 70 04 45 14 7 5 4 3 17 33 63 71 33 9-10Brno/Tufany ........ 1900 74 7:1 86 17 7 7 4 5 24 58 69 75 39 11-12Kico .............. 1900 5 5 05 30 7 4 4 1 3 7 22 80 65 27 IIOstrava ............. 1900 71 77 67 47 27 22 17 24 40 02 70 68 49 10-I1Umhgorod* .......... 1900 89 59 27 10 5 8 6 6 20 28 48 68 28 5-7

MOaatorn Mountaina:Kasprowy Wieroh*... 1900 43 39 111 80 43 42 30 36 34 35 45 46 41 6-7Lomniok .tt....... 1000 25 29 32 42 n6 57 6:1 50 411 17 22 34 39 3-48Iha ............... 10001 76 70 40 14 6 8 5 7 1I 36 08 66 34 8-9

* Near but outside Czechuelovakla,

hauitma 42, M2EAN NUMB1IER OF D)AYS WITH FOG (VIHIBII'ty <% M11,)

RIISON AND STATION JAN P11)1 MAl IL A JUN JIMl AUO 5E1 o(r NV DEC ANN T111 141;

Western Hills aund Plains:t NSlav ..................... 3 2 * * * * 1 1 3 4 4 23 10(Ovsk6 Btid jovilo ............ 3 ,1 2 1 3 3 2 3 0 7 5 0 44 10llrhio Kr nv6 ............. 2 2 1 1 2 1 1 a 4 6 4 5 32 10Lbero ................... 8 4 4 3 3 2 2 3 4 6 6 8 49 10StOlnyil .................. 18 12 13 9 8 6 7It o 19 17 141 10MariAnsk IAsn6 ........... .. 4 2 1 I I 2 3 5 6 8 8 45 10

" Milteovka.................. 22 20 16 11 II 1 10 8 12 15 24 20 184 10'llih ...................... 4 4 4 3 3 2 4 6 8 10 7 8 61 10

Pragxu ............... ..... 0 0 I 1 * 1 3 8 7 31 49 10Ilolint1 l pod Thuniizim ..... 7 5 A I 2 I * I 3 5 7 9 46 10

boAr ................ A. 2 3 2 2 1 1 4 5 7 6 6 42 t0rwa. m 10 7 3 3 2 * 1 4 9 14 15 80 10Tepl~li....................8 7 10 6 3 2 6 10 13 13 13 93 10

.Eastern Lowlands:Bratislava ... . ........ 6 2 2 * 1I 0 0 0) ( 1 ,1 7 9 31 10Brno ........ .. ...... 2 2 2 I * 4 * 2 4 0 6 24 10l1firbanovo. .. . . . ..... 3 2 I 0 1 I I I 2 3 4 6 25 10Koilce ..... ........ ....... 7 4 2 * t) 0 * 41 2 6 8 30 t0

-" UDIonoo ................ 8 0 4 I I 1 1 2 4 8 H 20 53 10Opava .................... 4 3 4 2 I 1 I I 4 A 7 4 30 10IPlilany.............. . .... 4 2 2 1 2 I I '2 4 1 8 32 1oPforov ............ .... .. 6 A 4 3 I I 1 2 4 5 6 7 43 i0HtrAlnilen................. 1 3 4 2 2 I 1 4 fl 7 6 7 49 It)

"Asterth Mountains!* neai AL fnilom ........... 4 2 2 1 * * I A 6 7 24 10Byntfidku .... .............. 1 I 2 2 2 1 2 4 7 6 4 5 36 10Ioickflnik# Atit .............. 22 21 22 26 27 27 20 25 21 10 92 21 278 18Oravsk, 1PoduAmok .......... 3 I 3 2 2 2 4 0 1) 7 2 3 45 i0HpltmkA Nowk Ve .......... .. 7 4 2 I I I I 2 4 7 8 I1 48 tOHteir= Hmokov"e. ........... 5 4 3 3 3 :1 4 :1 : 8 10 8 56 o

• <.1.5 day.

. 53

haFOufm 43, MEAN NUMBEItR OF )AYS WITH IAZE ANI)/Olt SMOKE AT SPEOIFIED 11OUR8ItVeION AND 8TA'rlON HIOUR JAN T ' I A LT 1JN I ( Sa ANN I 5• I". ,,^,, i i.,' If -.

Western ]1ilh and Plains:.N 1sk6 Budjovo..... 0100 4 2 ,4 3 4 3 4 3 2 I 2 3 34 8-.9Hradue Krdo%,....... 0100 2 0 I I * * 0 6 * I I I 1 4-5Plae/L/Dobtany....... 010) 0 * 0 ) * 0 0 0 4) * 0 0 1 3.4Prad&d .............. 0100 0 0 * * 0 0 0 * 0 0 0 ) I 3-4Pra e/luynd ....... 0100 8 8 t0 5 5 6 4 8 It) 9 7 87 11-12Ptbyllv ............ 0100 * 4 l * * 0 1 * O I 5 6-89niotkg** ........... 0100 0 0 00 ) 0 0 0 * 9-11

Emiterla Lowlanads:Bratllavallvanka pri

l)unajl ............. 0100 4 2 ;3 I j I 1 I 2 2 2 23 9-11Hlnio/'ufany ......... 0100 9 9 9 a 4 4 5 5 7 U 7 7 82 11Koieu............... 0100 4 3 2 I 1 1 2 I I 2 2 3 23 10-lIOstrava .............. 0100 5 7 8 A1 5 7 4 5a 5 t 5 5 65 9-10)Ulshgorod** .......... 0100 0 0 0 0 4 0 0 * 8-7

Ensattrn t Moutiains:Kasprowy Wieroh**... 01081 ) 0 1) * 0 0 0 ) * 0 0 0 * 6-howniok tit ........ O1)4 * 0 0 0) * 0 * 0 0 (1 1 4-5Slil ................. )100 4 3 3 2 2 2 2 2 '2 2 2 :3 30 H-)

6,vIk6 Buddovieo . .. 0700 4 3 5 .1 4 '4 7 4 2 2 I ;1 43 8-9Cheb ................ 0700 * 0 0 * * 0 0 * 0 0 01 1llradet Krilov6 07.). ) * * * * I 1 0 0 0 03 3..4Mill u vka ............ 0700 * 0 * I * * I * * 0 1) 4 II)PlIvs Dl)uba y ....... 0700 0 0 1 0 0 ) 0 ) 0 0 I 3-4.lPradod .............. 0700 0 1 * 4 0 ) * 4 0 * 3 4-5Prtagt'li' lhsyn4 ........ 07)0 9 8 14 12 II 12 I1 0 11 10 II 8 12A 11-12I'lbyilav ........... 070( * I * 0 * * * * I I I 5-8- u.eil.. ............ )700 0 * * * 4) 0 * 0 0 lb) 0 1 10-1I

r °'1oplllt ............. 0700 3 1 3 4 7 7 0 rt 4 2 '2 3 41 10LasrIu Lowlapw'b :

Brathilava/lvanka prlDiu.1aJi ............ 0710)4 4 4 2 :3 2 ', I I 1 1 , 3 u 28 0-14

Brim/Tufany ........ M) 0l) 0 7 1) 1) 1) 1 11 I 11 5 9 7 103 11-121 urbnlw' ,) ........... )71)1 * * I 1 $ * * I I I I 7 11)Kolo ............... 0700 3 3 2 2 2 2 "1 2 3 3 2 l 29 10-11IOstrava ........... .0700 a (5 6 7 R 8 7 8 8 5 5 5 74 IW- IPfrov ... ........ I7(X) 0 * 0 * * I * * * 4 t 3 14)l.yi, (I**...... . O0) ) 0 0 1) 4) 0 1) I ) I ) 0 4 0 5-6

Kasprowy Wim~oh*4. 0701) If 0 4 I o * )I 0 0 * 7-8loiniloky At ..... 0700 1) 0 0 4 * * 4) 0 1) () 1 1 5-.7, Sl1)) 5 4 31 5 5 5 6 3 3 "3 '2 2 45 8.-0

Western tllsh and Platins:,'eski lud0Joviou. 1:11 3 3 3 2 I I I I I 2 21 7-9Chob ... 41) 4 * 1.) 140 0 0 I 0 (1 0 W0Itradoe KrAlovd... .... 300 2 I 2 I 1) I * 1 2 I 2 12 4-41Milhovika.........4)4) * * * I * I 1 1 3 * * 11 10PlIafi/I)nlabttay ...... 4304) ) 1} I 0 0 4) 4 0 ) 0 1 0 ) I 3--4Pradd ............. 4) 4 1 * * 30 * * I (1 0 * 3 3 -5Prague/IusaynA . 1:110 14 9 8 5 3 2 2 , 5 1) 10 9 72 11-12l'flbylalv...........I1) I 4 * * 0 * * 1 ) 4 * * 3 6-7nInl ka,* *

. . ... (8) 0) 0)13 0 0 0 1) ) * 11-I'4l4ileu.........18) 5 4 0 5 3 4 .4 5 6 6 7 ( 11) 10

matetrn Lowlands:Bratliglnva/lvatika prl

Diu]aji............ 130) 4 6 4 2 2 1 1 4 1 5 2 3 28 8-11Brno/Tufsny ......... 1300 9 8 0 2 * * * I 2 6 7 4 46 11-12flurbanovo ........... 1400 () 0 0 0 0 1) ' * 1 1) 0 1 10Kolliae ............... 1300 4 :1 2 1 0 1 * 2 2 3 17 10.- IOstrava .............. 1300 7 8 8 6 4 4 4 4 5 6 6 5 64 0-1IPtervo .... ......... 1401) 1 I I 4) I 4) * 1 1 4 4 4 10Ush~prod** . . . . . . . . . . 1300 4) 5)1 ) I ) 4) I 0 0 * 4) * I 7

81 foutaotm at end of table.

54

Fiounj 43 (Continued)

REGIO0N AND WrArlON HIOURI JAN pc A 4Hl Alit 'IMAY AJN J Ul $MPL.3 OCT NO N'ANN YHO 1100

(ww)FlattMrn Mountt(ni

Kikprowy Whikrh**. 1300 0 0 0 0 0 0 0 0 0 0I.omnik lAt ....... 100 0 0 0 4 ) 0 0 * 0 0 0 0 * 4-6R , it ............ 1300 01 h A I I I 1 1 3 a 4 3 38 -.9

Westoral Ii|1 ao1 w d :'cmk6 BudiJovIo., 1000 6 3 4 2 1 2 2 I 2 4 2 27 [-10

(lhb ................ 2100 0 0 0 * + * 0 * 0 0 0 0 1 10lrado KrAlov6 ....... 1000 1 1 '2 1 1 0 1 0 1 2 1 2 12 3-5Mleovka ............ 2100 0 0 9 0 * " * * 1 0 0 2 10PlIo/)obtay ....... 19100 0 0 * 0 0 0 0 0 0 0 0 0 84PraN .............. 1)0 0 * * * * * * 0 * * 0 0 2 4-5

10Prague/IN vyn- ..... O00 l ) t) 111 0 3 2 3 2 8 11 11 10 88 11-12Ptlbyaihw ........... 100) 1 1 1 * 1 * 1 .0 6 7-8

0............ I0 (o 0 0 0 * * 0 0 0 0 0 1 I0-122 Tol ...... .. 2100 2 , 2 1 1 1 1 1 2 2 2 2 17 10,

Easltern Lowlasia:Brat.hlava/Ivanka pri

D ikil ............. 100 5 4 a 3 2 1 1 1 2 2 3 3 80 9-10 ,,lrilo/'Ttmy ......... ION) 12 11 10 3 1 * 1 1 a I1 9 8 72 11-12Itrbimovo ........... O210 0 0 0 0 0 0 0 0 * * o 1KoA Io ............... 10)0 5 4 2 * * a * 1 , 3 2 21 11Ouirlwa .............. 1900 7 to 0 4 3 2 A 7 8 0 a 70 10-11Pforov ........ ,1100 0 0 * 0 0 0 0 0 0 * * * 1 10

shorod**.......... 1000 * * ) * 0 * 0 * * 0 0 1 5-7I1 M t, orll M O tulr |pJiigl 7-I8

Kasprowy Wiurlo**., 101)0 0 0 0 0 0 0 0 0 0 0 0 0 1-81,1tiloky AM ........ 1000 0 0 0 * 0 0 * 0 1 0 0 1 5-781110 .............. 1.0) 4 4 3 * 1 2 1 1 3 2 4 26 8-10

* <0,5 duy.* Nmr but outside Oanohoulovikkia,

j.'

S

-

- -... .. .

Fiuun 44. PE RCENTAGE FREQ11TENCY OP SPRCIPFIED CEILING AND VISIBILITY COMBINATIONS ATSPECIFIEI) HOURS1

WmU- YKARIXl0ON AND ITATION HOUR NINA- JAN YI MAiR APIt MAY JUN JUA. AU NOV DZU ANN Ht

TtZN* .

(L&r)

Wetern Hills andPlains:

Cmkd BudgJovioe. 0100 A 64 51 74 91 92 94 92 94 8 70 56 56 78 8-9B 17 28 11 3 2 3 2 2 t0 17 25 28 12 8-9

1lradoo Krldov6., 0100 A 74 88 80 97 92 95 .81 92 88 71 60 62 81 4-5B 8 29 12 0 3 4 4 6 7 14 14 17 10 4-5

Plaefi/Dobtany, . 0100 A 32 31 64 82 82 74 77 91 55 43 40 30 59 3-4B 42 40 13 8 3 7 3 1 24 33 35 49 22 3-4

Prad~k .......... 0100 A 30 33 35 42 55 54 45 52 A0 44 30 18 41 3-4B 70 64 65 87 4 1 45 51 46 50 56 69 82 58 3-4

Pralue/ltuayn6., 0100 A 69 66 80 92 00 90 90 98 03 81 6 6:1 83 11-12B 18 18 11 5 2 1 1 1 3 1) 21 25 10 11-12

Ptibys~v ....... 0100 A 53 54 70 88 81 86 91 87 84 76 34 55 73 6-81B 27 27 21 6 10 6 7 7 7 11 31 27 16 6-8

Aniemk&* ....... 0100 A 44 42 45 51 51 57 51 54 51 45 41 40 48 9-11B 86 58 54 49 4%) 43 49 45 48 55 59 59 52 9-11

Eastern Lowlands:Brtimlava/Ivanka

pr Dunajli ... 0100 A 83 O 86 99 98 09 100 99 97 89 8O 67 87 9-11B 19 17 0 1 *** 0 *** i 2 4 13 20 7 9-11

Brno/Tuh uy..... 0100 A 87 80 85 7 09 01 08 90 96 80 70 'I 85 iB i 18 4 1 0 1I I 2 12 21 7 .11

Ko110 ......... 0100 A 65 67 92 98 9) 98 119 90 100 92 78 61 87 10-11B 22 21 3 1 1 1 1 1 0 31 10 30 8 10-11

Ostrava ........ 0100 A 62 57 63 77 84 88 80 88 711 03 53 65 72 0-10B 15 18 10 7 6 4 3 8 8 21 20 1a 12 9-10

Ushmorod** ..... 0100 A 70 69 94 98 99 98 99 98 99 94 81 64 89 5-7B 25 26 4 2 U 1 1 1 1 5 13 211 9 5-7

Eastern Mountains:Kamprowy 0100 A 52 52 62 82 57 51 56 62 61 6. 55 80 56 5-7

Wioroh** B 47 47 37 48 39 47 41 35 35 88: 44 50 42 5-7Lonulok AtIt,... 0100 A 60 71 69 60 51) 61 54 (14 06 82 78 87 67 2-4

B 32 28 31 40 41 40 46 35 34 18 22 33 11 3 2-4811a ........... 0100 A 48 48 80 94 03 11 94 94 112 70 70 62 76 8-0

B 29 31 6 3 4 6 4 4 14 21 Is 23 13 8-9

Western Hlls andPlains:

6%uk6 B1udSjovloo. 0700 A 60 48 64 68 711 82 80 71 52 49 52 52 64 8-0B 24 34 10 14 13 ) 9 II 32 18 3) 26 22 8--9

liradoc KrAIov6, 0700 A 68 45 40 84 (17 81 77 78 59 47 $1 57 64 3-4B 10 31 32 5 10 8 0 5 22 301 210 17 17 3-4

PlIoi/l)obtany,.. 0700 A 43 30 54 48 55 65 75 75 U11 :i 41 29 48 3-4It 36 47 33 21) 28 17 1(0 13 52 511 37 47 34 1-4

Pradd,, ....... 0700 A 30 113 3 44 hI 45 41 63 49 40 28 27 40 4-5B 70 Oil U6 55 40 4 88 46 41) 54 71 73 no 4-5

Prage/Rtusyn, .0700 A 07 53 01 76 89 81) 91 88 71) 59 56 59 72 11-12B 1) 26 11) II r 4 :1 4 14 27 28 :0 I1 11-12

Pflbylav ........ 0700 A 53 ,1 631 7:1 73 1 AI 77 74 59 40 51 6 7-8B 27 34 25 13 111 12 II 13 14 :1 41 32 23 7-8

Anoika. ...... 07001 A 40 45 45 43 47 152 41) 49 48 411 42 40 45 8-11I- 60 5 55 510 52 47 5I) 50 ,1" 54 58 601 54 8-11

Norm (elling heroin Im definel ax c-IllLhm aloud oover,* ombination:

A...... Calling !984 foot with viNibility '2' miles,B. Colling < 656 feet and/or visibility < 1 4 mnIles.

SNear but otaide (moohoolovakla.* <0.5%.

5-

.--.- ... .. .. ..-. ---.---- . .--.---..-. ,--"-.-.. -

i Fiouam 44 (Continued)

RWG|ION AND STATION HlOURt BINA- JAN reB An Pt JUN JU xU(,; amp OVIT NOV] D100 ANN a(,TION* . .. - .. .-

LMastorn L~owlunds:' " Bratimlavu/1va-aka

pri butnaji ..... 0700 A 63 60 71 87 94 06 97 05 84 71 61 02 78 9-10B 22 23 13 4 1 1 1 1 7 17 20 24 it 9-,10

,'Brno/T~any- .... 0700 A 87 49 60 83 02 93 93 86 76 40 55 67 71 1 1-12... 20} 28 20) 3 2 2 3 3 9 31 26 21 14 1 1-12

KoiAloe .......... 07001 A 61 6:1 84 95 97 06 06 97 05 91 70 56 83 10-11' B !24 22 It 3 2 2 2 2 3 It 20 29 11 10-11

Ostrava ......... 0700 A 58 4y 5:1 60 78 81 87 70 69 00 50 60 66 10-11-:

B IS 31 26 16 10 9B t 4 9 19 28 32 23 19 to-11,Ak, 18hgorod** ...... 0700 A (so 0€, 86 95 9)7 03 95 95 89 84 74 60 83 -

B 27 20 5i 1 2 2 0 1 4 112 16 27 it A-6, Eastern Mountains-

K~prowy 0700 A 52 54 67 49 60 50 5% 53 65 64 60 47 as 5-7

Wieroh** B 47 44 30 40 ,37 40 37 35 33 36 38 53 40 5-7Lomnie tft, M,,. 0700 A 67 71 68 66 87 70 72] 78 73 76 76 68 70 38

,,B 341 29 :l :14 41 30 28 '22 25 24 23 32 29 3-9

H1110a ............ 0700 A 44 42 6 74 7 9 8:1 80 67 7 43 fie 82 61 -9B .13 33 18 11 ) It7 8 17 42 46 28 250 23 8-9

~Wetstr Hillo and .'

.1 Ck6 BudliJovloe, 1300 A 72 62 M1 93 98 07 95 99 95 79 q6 67 a 6-10B11 15 21 7 2 *** 1 3 0 1 9 17 23 8 ,-

•Hradco Kr~lov6,. 1300 A 00 57 85 10W 98 97 97 97 100 80 7,0 65t 85 "B 14 22t 3 0 1 2 0) 1 0 6 14 18 7 .4-..1i

Pissfi/Dobfuny, .,1300 A 44 47 78 89 07 9097 97 85 71 05 85 78 34'1

B 30 30 8 3 0 1 1 1 5 ,1 3 23 44 is - 4.1Prad~id .......... 1300 X 26 44 46 31 36 28 26 423i, 44 31 24 3b5 3-5

""B 73 53 5'2 65 54 66 69. 54 56 54 58 75 62 -I11 1.5 to 9 3 "1 1 'k 1 2 7 t6 24 g1 11-11

"Pfilbytav ........ 1300 A 64 58 80 90 01 94 55 05 96 87 5b 58 80 6-,71B 22 31 14 6 a 4 3 4 3 7 31 28 s 18 -7,.1

duletkm.** ....... 1300 A 39 40 41 30 34 33 32 30 42 46 39 41 39 i-0.,B 01 59 68 57 59 so 59 57 56 85 6t 59 AS 8-10,

' "Hastert Lowlsnds,

pri Dunaji ..... 1300 A 62 fig 90 99 09 O99 99 100 99 94 751 6 67 6-11B 10 14 4 *** I I *** 0 *** a 12 21 6 &-11

: Bro/Tulfany,... 130D A 06$ 71 92 00 08 98 90 09 98 gt 77 50 87 It:B it)1 13 3 1* 1 * 1 t 5 11 25 7 11,1

Kollce ........ 1300 A 05 72 93 08 100 00) 100 100 99 96 83 6 9 10-111

SB 234 16 2 l o * * 0 *** 2 a 25 6 10-11Ostrava ........ 1300 A Oil 09 7f r) 0 03, 97 90 05 92 86 70 64 83 to-Ili

11 1is 12 10 4 2 1 21 2 3 7 17 23 8 10-1t 1Ubhod** ...... 1300 A 69 (it 03 08 08 00 99 90 97 93 82 58 86 5-6.

B 23 213 5 0 1 1 0 1 1 2 II go 8 64,iPlamtern Mountalxs:

Ktalprowy 1300 A 59 50 57 46 58 44 49 53 57 63 58 44 64 8.4!Wierch** 1B 41 41 43 49 39o 43 41 3I8 38 35 41 54 42 8-41

l41nn1iokf A;tit .... 1300 A 70 71 71 42 25 13 23 2,91 48 81 73 72 52 2-4'B 24 26 28 5K 75 85 73 67 62 10 27 28 47 2-511

81............ 1300 X 38 52 88 0go 10 100 98 too 99 so 82 49) 83 7-4,B 27 21 4 1 0 0 1 0 i 4 8 28 8 7-0

FiauRm 44 (Oondinued)

COM- I :RX0ION AND hWATION HOUR DINA- JAN mB MAR APR MAY JUN JUL AU S P OCT NOV DIC ANN RMO

________________ rioN*RU

(Ls'r)Western Tills alnd

Plains:zCosk6 Bud~jovle. 1000 A 66 58 83 98 97 99 97 99 96 84 67 87 88 8-10

B 17 26 5 4 1 1 2 *** *** 6 16 25 9 8-10Hradee Krklov,, 1900 A 68 58 78 97 98 98 96 98 91 79 70 59 83 3-5

B 11 26 8 1 1 1 1 0 2 8 14 18 8 3-6PlaeS/Dobfny ., 1900 A 41 43 80 95 96 97 97 99 86 65 57 35 74 3-4

B 32 26 9 0 0 1 1 0 6 14 23 43 13 8-4Pradld ......... 1900 A 30 88 84 40 59 50 55 59 48 39 28 23 42 4-5

B 70 60 66 53 40 48 41 40 48 61 71 78 87 4-5Prague/Rusynil... 1900 A 69 61 79 93 98 98 99 99 95 83 06 62 84 11-12

B 15 19 12 2 1 1 1 *** 1 8 19 24 9 11-12Plibyslav ....... 1900 A 60 65 79 89 95 95 95 96 95 83 59 59 81 7-8

B 26 22 15 7 4 2 3 3 1 11 92 28 12 7-8Anieika** ...... 1900 A 38 39 43 49 54 47 60 68 53 45 43 41 48 8-11

B 61 60 56 50 43 41 88 89 47 54 37 59 50 8-11Eastern Lowlands:

Bratihlava/Ivsnkapri Dunaji... 1900 A 6 72 83 98 99 99 100 99 99 98 83 67 83 9-10

B 16 12 5 1 *"* *** 0 0 *** 3 8 17 5 9-10Bno/Tufany .... 1900 A 64 89 85 97 99 99 100 99 96 85 72 61 86 11-12

B 17 9 a *** 0 0 0 0 1 4 14 21 5 11-19Kolio ......... 1900 A 62 70 92 99 99 99 I00 99 99 96 84 62 88 11

B 24 15 4 0 1 0 0 *** 1 1 8 31 7 11Ostrava ........ 1900 A 67 89 71 80 96 98 97 98 89 81 67 61 81 10-11

B 18 14 11 6 2 2 2 1 3 7 17 90 8 10-11Ushgorod** ..... 1900 A 06 67 92 98 98 98 99 98 99 96 80 61 88 6-7

B 27 29 4 0 0 1 1 1 1 1 14 81 9 5-7Eastern Mountains:

Kamprowy 1900 A b5 60 58 46 51 49 54 57 61 61 01 51 55 6-7Wierch** B 43 40 41 58 45 46 43 41 38 88 49 49 44 6-7

Loumntuk tit .... 1900 A 75 71 87 57 39 40 44 42 56 83 76 67 60 3-4B 24 29 33 43 61 59 56 58 43 18 23 83 40 3-4

.i......, 1900 A 51 62 88 98 100 98 99 99 98 93 80 61 86 8-9....... _, _ B 23 17 4 1 0 1 *1* ** 1 1 6 18 6 8-9

Nor Ceiling herein In defined aa ;!&eighths cloud oover,* Combinatlon:

A ...... Ceiling .984 feet with visibility .9*2 miles,B ...... Ceiling <656 feet and/or visibility < 1 miles.

• Near but outaide Caeohoslovaki,5 ** ,,.5%,

Fiouam 45. MEAN NUMBER OF DAYS WITH SURFACE WIND SPEED '28 KNOTS AT SPECIFIED HOURS

HXGION AND RTATION HOUn JAN FON MAR A M J JULI AUG 150 IOU NOV DEC ANN YRR HUC

(z.sT)

Wetern Hills and Plails:NLsk6 Budoviw3.... 0100 0 * * 0 0 0 0 0 0 0 0 * . 8-9hIladvce KrAlov6 ...... 0100 0 0 ) 0 ( 0 0 0 0 0 0 0 0 4-5PlactiDobtany ...... 0100 0 0 0 0 U 0 0 0 0 0 0 0 0 3-4Pradd .............. 0100 7 4 10 2 2 2 4 4 4 3 8 8 57 3-41Prago/Rusyt ...... 0100 1 1 * * 0 0 0 * * 0 * * 3 11-12Plibyslav ........... 01)0 * 0 1 * 0 0 0 0 0 0 * 0 1 6-8,nfika** ........... 0100 16 1.1 13 9 7 6 7 8 1 9 11 13 120 9-11

Eastern Lowlands:Bratiulava/Ivanka pri

Dunaji ............ 0100 1 I * 0 0 * 0 0 0 * * 2 9-1IBrno/Tufany ........ 0100 * 0 * 0 * * 0 0 0 0 1 11Kolc ............... 0100 1 * I * * * 0 0 0 0 * 1 3 10-11Ostrava ............. 0100 0 0 0 0 0 0 0 0 9-10Ushgorod* .......... 0100 1 0 0 0 0 0 0 0 0 0 0 0 0 5-7

Eilastorn Mountains:Kasprowy WIoroh**.,, 0100 3 2 i I * * * * 1 2 3 18 6-8Lornnickj It ....... 0100 2 2 4 I I 1 1 1 1 1 1 1 16 4-5Hiia .............. 0100 0 0 0 0 0 0 0 0 0 0 0 8-9

Western ills and Plains:Aesk6 Bud5Joviou, .. 0700 0 0 0 * 0 0 0 0 0 0 * * 1 8-9

Chub ............... 0700 * * 0 0 * 0 0 0 0 * * 1 9-i0lrado KrAlov4 ...... 0700 0 * 0 0 0 0 0 0 0) 0 0 0 * 3-4Liboroo ............. 0700 1 0 0 0 0 0 * * 2Milolovka ........... 0700 10 8 9 7 5 6 0 4 5 8 9 83 9-10Phiot/Dobany ....... 0700 0 0 0 0 0 0 ) 0 * 0 * * 1 3-4Pradd .............. 0700 6 5 7 2 3 2 2 2 4 4 7 8 53 4-5

' Praguo/fuynd ...... 0700 1 1 * * * * ) 0 * 0 * * 2 11-12Ptbyhlav .......... 0700 * * * 0 ) 0 0 0 0 0 * * 1 7-8gninika** ........... 0700 17 13 13 8 7 6 It 8 10 'it 14 119 10-11Tepliao .............. 0700 * * 1 ) 0 0 0 0 ) 0 * 1 I t0

Eaastorn Lowlands:Bratislava/ivanka pri

Dunaji.......... 0700 * * 0 * 0 0 0 * 0 * 0 1 9-11'. Brno/Tutfmny ..... .. 0700 * * 0 * 0 i) 0 0 0 0 0 * * 11-12

1htrbanovo .......... 0700 * * * 0 * 0 0 0 * 1 * * 1 10Koloe ............. 0700 1 * * * 0 ( 0 0 * I 3 11-12Ostrava ............ 0700 0 0 0 0 0 I 0 0 0 0 10-11[• Pferov ............. 0700 * 1 * * * 3I 0 ' * * 1 * 3 10Ughgorod** ......... 0700 0 (1 0 0 0 II 0) 0 1 ) (3 i-8

Eastern Mountains:Kasprowy Wierch**,. 070) 3 2 I I 1 1 1 :1 15 7-9LomnlokItt....... 0700 2 3 3 1 I * I I 2 1 I 3 17 -78S0 ................ 0700 ( * 13 * * 0 0 31 0 1 ) 0 ) * 8-0

Wostorn 11 ills and Plaitis:6aM kA Bud jovion .... 1300 * * * * 1 0 0 II 0 0 0 * 7-0Ch h ............... 1400 * * * * * * * * * * * 9-10Hradec Krilov# ...... 1300 0 * 1 * 0 0 0 (1 * 0 0 i) 1 4-8I,Iberec ............. 1400 1 1 * I * * 0 0 * 1 * 4 6MiiLu3ovka .......... 1400 11 7 ) 7 5 ,4 6 5 4 4 8 9 80 9-110Plsefi/Dobfany ....... 1300 ) * 0 ( 0 I) 0 * 0 0} 0 * 1 3-4Pradll ............. 1301 7 3 0 3) I 1 4 3 :3 4 5 6 45 8-6Prapue/RusynW.......130 I I I * * ) 4 1 * * * * a 11-12

' Pflbylav ........... 130 0 I I * * ) 1 ) 0 * * a 2 6-7-nioeka** ...... . 100 14 11 It 6 4 4 5 7 6 8 10 13 go 10-11Teplioa ............. 1400 * * 0 0 0 a 0 0 a 1 2 10

Eastern Lolands:Bratislaa/Ivanks pri

DunaJ ............. 1300 * I I * * 0 * 0 0 a * 3 9-11Brno/Tufany. 130 * . . . * 0 0 * 0 0 2 11-12Ilurhanovo .......... 1400 * * 0 * 0 0 0 0 * * * 1 10Ko~iot ............... 1 01 4 ItKola13001 0 * i * a} 0 0 0 0 * 0 * 4 tO-I

Ostrava 1301).1) * 0 0 0 0 1) 0 0V ferov .............. 1400 I I t I 1 * a 1 1 1 1 8 toUJhgorod** ........ '3 00 * 0 0 * 6-7

.. Be$ foothoted at 604 Of talei.

Fyouau 45 (Continued)

REGION ANDTATION HlOUR JAN FMB AR APnT A JUN JIUL AUGf SNP OCT NOV DU ANN TUBS RZO

EsAtern MountninsK~aprowy Wiorch**... 1300 4 2 2 * * 0 * 1 1 4 15 6-7Lomnicok Atit ....... 1300 2 2 1 1 1 0 * 0 1 1 1 2 12 4-6

................. 1300 0 0 * * .0 * 0 0 0 0 0 0 * 7-9

Western Hills and Plains:lteskd Bud6jovice.... 1900 * * * 0 0 0 0 0 0 0 * 0 * 8-10Oheb ................ 2100 * * 0 0 0 0 * n * * i * 9-10Hradeo KrAlov6 ....... 1900 0 * 0 0 0 0 0 0 0 0 0 0 * 8-5Liberec ............. 2100 1 * * * 0 * * 0 * * 1 0 3 aMilegovka ............ 2100 14 12 14 11 10 9 10 8 9 8 11 12 129 9-10Pleil/Doblany ....... 1900 0 1 0 0 0 0 0 0 L 0 0 * 1 8-4Praddd .............. 1000 6 8 6 2 2 2 2 3 a 3 6 6 46 4--Prsue/Rusyn6 ....... 1900 1 1 * 0 0 0 0 0 * * * * 2 11-12Pfibyefiav ............ 1900 * 1 * 0 0 0 0 0 * * * 1 7-8Anie/kka** ............ 1900 16 13 12 8 5 4 6 6 9 9 11 12 109 10-12Teplic ............. 2100 * * 0 0 0 0 0 0 0 * * 0 1 10

Eutern Lowlands-Bratislava/Ivanka l pri

Dunaji .......... 1900* 0 0 0 0 0 0 0 1 -10Brno/Tufny ......... 1900 0 * * 0 0 0 0 * 0 0 * 11-12Hurbanovo ..... .. 2100 0 0 0 0 0 1 10Kolie .............. 1900 1 1 1 * 0 0 0 0 0 * * 1 8 11Ostrava .... ..... 1900 * 0 0 0 * * 0 0 0 0 * 1 10-11Pfrov .............. 2100 * 1 * * * 0 0 * * * 1 1 4 10Umhgorod** ......... 1900 0 0 0 0 0 0 0 0 0 0 0 0 0 8-7

Eustern MountalnstKasprowy Wieroh**,,, 1900 a 8 1 * 1 * 0 1 1 1 1 4 17 7-8Lotnniok$ ttt ....... 1000 2 2 3 2 1 1 1 1 1 8 1 4 19 5-7Sia ................ 11)00 0 0 * 0 0 * 0 0 0 * 1 8-10

S<0,5 day.

• * Near but outside Csohoulovakia,

,Now

Foumc 46. MEAN NUMBER OF DAYS WITH 8URFACE WIN) SPEED :17 KNOTS AND NO PRECIPITATION- ' ' OCCURRtING AT SPH CIFIBD 1HOURS

nVI0 AD TAION HOUR JAN PR MAIL jAPR jMAY IJUN JUL TAU1=mp OUT INOV IC ANN _____U3

Western Hills and Plains: (j

mosk6 Budbjovico . .. 0100 1 1 1 * 0 * 1 * * I 1 4 8-0lradec KrAlov6 ....... 0100 * 1 1 0 0 0 0 0 0 0 * * 3 4.0Plrofi/Dofany ......... 0100 1 1 1 * 0 * * 0 1 * 2 1 8 3-4Pradd ............. 0100 13 11 15 10 It 8 13 13 13 13 15 14 148 3--4Prague/ltus-n4 ....... 0100 4 3 2 1 1 1 1 1 2 I 2 2 20 11-12Pfbylv ........... 0100 2 2 3 1 * I ' * * 2 3 4 20 6-86niebka** ............ 0100 15 18 14 14 13 13 15 17 16 15 16 14 174 9-11

Eatern Lowlands:Bratlslava/Ivanka prl

Dunaji ............ 0100 2 1 2 1 1 1 1 1 1 1 12 0911Brno/Tufany ......... Mutt 1 1 1 1 * * * 1 1 I 8 11Kolioo ............... 0100 s '3 4 2 1 1 * I * 2 3 2 20 1-11Ostrava .............. 0100 1 * * * 0 0 0 * * 4 9-10 .

.i atorn Mountains:Kamprowy Wloroh**... 0100 8 8 6 4 4 4 4 5 5 7 7 7 65 6-8Lonmlck Atit,, 0100 7 5 8 4 5 2 ( 6 A 5 4 7 62 4-5811as ................. 0100 * * 1 * 0 0 0 0 0 ( * * 2 8-9

Wastorn Hills and Plains't:,k6 Budjovio ..... 0700 * 1 * 0 * * (0 * 1 8-9Chob .............. 0800 1 * 1 1 * 0 * 1 7 1 1 1 7 4--6Hradeo KrAlov ..... 0700 0 1 * 0 0 * 0 0 0 * * 3 1-4Llbero ............. 0800 5 5 3 2 1 1 2 * * 2 5 4 30 5-6Mtlolovka .......... 0700 * * 3 8 12 10 12 11 12 13 9 3 93 9-10

. PIof/Dobtany..... 0700 * 1 * 1 0 * ' * 1 1 1 0 a -- 4Pradfd .......... .. 0700 13 11 12 6 1) 9 9 10 12 12 12 13 127 4-1Praguo/Rusyn6 ...... 0700 5 3 2 I 2 1 1 1 I 2 1 '. 22 1-12Pfbyelav ........... 0700 3 2 4 U * I * 4 3 3 1 7-8NAniika** ............ 0700 17 14 14 12 12 10 18 15 14 16 15 15 165 10-1ITopl p .............. 0700 I I I 2 I 1 1 I I 1 2 12 0-, 10

lastorn Lowlands:Bratislava/Ivanka pri

D unajl . ........ 0700 1 I I 1 1 I I I * 1 I I1 o- 1IBrno/T uny....... .0700 I I 2 I * * * * * * I 7 )1-12Ilurbanovo .......... 0700 3 2 I I I I 1 * * 2 2 14 1)K o o ............. 0700 3 :1 : 3 2 12 I * l 2 2 20 W.-lIOstr ava .............. 1700 I I t o * 0 0 * I 1 4 10- I1Pferov ............. 0700 I 2 2 2 I I 1 I 1 2 I 14 9-Il)

Eastern Mountains:Kasprowy Wioroh**.. 0G700 1) 5 0 3I 3 : 1 10 7 7 (1 63 7 A1,omnloki Atit ....... 0700 ( It 1 to 5r .1 ,5 8 r, i s i 68 5-.18 la ................ 0700 1 * I * I * 0 ( 1 II 0 * * 2 7-lI

", Wept(m'uIi1 Ills and Plains:( lek6 1udgJovloo. 1300 2 I 3 I I I 1I I 2 2 I 17 7 -t-1hob ................ 1400 * 1 3 3 3 I 2 I I 3 2 2 22 4..5lradoo KrAlov6 ....... 1300 1 1 I 2 * 1 * I I 2 * 8 4-lILilxro.......... .. 1400 :1 (1 d 7 53 3 31 4 2 4 6 5 54Mll elov ............ 1400 * 3 8 10 I I 12 12 It 10 7 3 85 1).. 10Pisti/l)obtany ....... 1300 1 * 2 2 I 2 ; 3 I 2 1 19 3-4Pradbd ........ ..... 1300 10 7 12 7 ti 7 I I 9 1 ) I 1 07 3-.hPragya/RtusynC ...... 13M8 5 4 5 4 , 3 :1 3 4 4 3 4 42 11-12Pfbyshlv ........... 1300 3 3; 0 5 2 31 2 .3 3 .1 4 3 39 6-7Anieka**.......... 1:10) 15 12 12 it H 0 lI Il I I 12 12 13 134 10-11Toplle ............ 1400 2 :3 4 .1 :1 3 4 .1 4 3 , I 86 9-10

Ilastern Lowlands;Bratlslava/lvanka pri

)unnji ....... ...... 1300 3 ;3 0 1 5 .1 2 2 2 I 2 2 .1 30 8-lBrno/Tufany ........ 1300 2 2 r, A 3 2 2 2 :3 : 2 A3 30 11-12lHurbanovo .......... 1400 2 I .1 4 3 2 2 :3 2 3 2 I 31 IllKogIco ..... ..... .. 13010 4 I ,5 (1 4 ' 2 2 2 2 3 4 38 10-IIOstrava.. 13() 2 I 2 I * * * I I I 2 12 10-11Pferov 14010 2 I t( I 1 2 :1 2 :1 3 2 I 39 11.. 10

as@ footnote$ at end of table.

-:i61

Fiounz 46 (OoMinued)

REGION AND~ STATION HOUR -JAN FUH MAR P l IY UN TJUL Aun tmap o(.r NoV Dnu ANN YMS Rau

(LSr)Eastern Mountains:

Kasprowy Wiereh** .. 1300 8 5 0 3 3 2 2 2 5 4 6 7 61 6-7Lomniok4 Atit ........ 1300 0 5 6 3 2 2 1 2 2 3 3 6 40 4-6M0la ................ 1300 * 1 1 1 1 1 1 1 * * * * 7 7-9

Western llills and Plain,:&%M' k6Bud~jovie. 'i990 . 1 1 * * I I 1 0 0 * * 1 5 8-9Chb .............. 1900 1 2 3 2 0 2 1 * 1 3 1 16 3-4Hradeo Krlov6..... 1900 0 1 0 0 0 0 0 1 * 1 0 2 4-5Liberoc .............. 1900 5 4 3 3 2 1 2 1 1 2 4 3 30 4-6Pelefl/Dobluny...... 1900 0 1 0 1 * * 0 * 1 * 2 1 6 3-4Pradd ............ 1000 11 11 11 7 8 7 10 8 11 12 13 13 120 4-5Praguo/Ruzyn6 ...... 1000 3 2 2 1 1 1 3 1 2 1 1 3 19 11-12Pfibyslav ........... 1000 3 2 2 2 1 * * * 1 1 3 2 18 7-8Snie*ka**........... 1900 16 13 14 11 9 10 12 12 1 16 13 13 164 10-.11

Eastern Lowlands:Bratslava/Ivanka pri

Dunaj ............. 1900 2 2 2 1 1 * * 1 2 13 9-11Brno/Tufany........ 1900 1 1 2 2 1 * * 1 j * * 8 11-12Kogioe ............... 1900 4 3 5 3 3 I 1 1 1 2 3 26 11fltrava ........... 1900 1 i * * * * * 0 * * 5 11

Eatern Mountaim:Kasprowy Wiereh**... 1900 7 0 6 2 4 2 2 4 0 5 6 8 38 7-8Lommiekc Atit ........ 1900 7 7 7 3 5 3 3 4 4 7 4 7 60 5-7

* SIla ..... 19.00 * * 1 * * 1 0 ( 0 0 * 3 ,8.9

* <0.5 day.

• Near but ,utalde Osechoolovakia.

Fiouna 47. MEAN NUMBER OF DAYS WITH SURFACE WIND 8PHED 4 TO 1') KNOTS, TEMPERATURE >32" F. BUT

<90 ° F., AND NO PRIECIPITATION OCCURRING AT SPECIFIED HOURS

HWGION0 AND 91T0104 HIOUR~ JAN 11 a MAR I APA I MAYJ JUN IJUL AU SP OUT INOV I EM ANN YUS RO

(LOT)Wetern 11-ills and Plaltu,

esk ,BdJov ..... 0100 3 3 5 8 7 7 7 7 6 6 7 4 70 8-9lradec KrAov ..... 0100 3 2 4 7 5 5 4 5 4 a 7 3 54 4-5

Plsefi/Dob~any ....... 0100 2 4 5 9 0 0 4 8 5 7 8 1 63 3-4Pradbd .............. ' 0100 4 * 1 2 4 0 f) 7 4 3 1 0 37 3 .4Prague/Ruzyn6 0100 2 3 8 13 17 18 17 18 1 16 10 4 139 11-12Pflbyslav ............ 0100 1 2 4 10 14 13 13 15 15 t2 7 3 100 6-8

............ 0100 1 * I 2 4 5 (1 5 5 5 2 * 36 9-11Ianstern Lowlands:

, Bratlslava/liynka priDulaji ............. 0100 4 5 10 14 P4 13 13 14 14 t5 12 6 135 9-11

Brno!Tutay ......... 01)1) 2 4 7 12 15 14 13 13 14 13 9I 5 122 10-114 Kogile .............. 0100 1 2 5 11 13 13 14 16 15 11 9 4 114 10-11

Ostrava .............. 0100 4 3 6 1) 9 0 11 9 10 10 8 6 95 9-10Uzhgorod** .......... 0100 4 8 it) 10 11 9 12 9 9 6 6 9 5--7

Eastern hloltitaim:Kasprowy Wferch**.,. 0100 0 1 I 2 5 10 1 to 7 6 2 * 83 U-8Loinek, Atit ........ 0100 0 0 0 ) 2 10 8 9 8 6 1 0 43 4-5S la................ 000 I I 5 10 7 7 4 b 5 5 5 3 68 8-9

Weitern Hills a nd Ilaim:6i.kd Bud~jovlon. 0700 3 3 4 13 6 7 7 5 6 6 7 3 63 8-9Cheb ............... 08(001 4 2 4 8 it 6 10 6 8 7 7 6 78 4-5ltrado KrAtov ....... 3700 4 2 4 8 8 7 5 6 4 6 7 3 60 3-4

liberee ............. 00(0 2 :3 6 8 8 12 10 13 1) 8 7 4 88 5-6Mlgovka.......... (;70(0 I 2 h 8 9 8 7 6 7 2 1 55 9-10iIIOfl/l)obtfany....... .0700 ,4 3 4 6 0 5 5 I0 (1 8 7 2 es 3-4Pradd. ............ 0700 I (1 I I 6 9 9 1) 03 4 1 47 4-6Progue/lltfsyn ....... 0700 2 5 .5 II 14 12 14 15 12 12 8 3 109 11-12Ptibysia ............ 0700 I 1 3 A, 12 1I 12 12 12 1) 6 1 89 7-84nletka** .. ........ 0700 I * I I 5 6 5 A A .1 * JA 10-111'eplle ............. 0700 2 2 5) 7 9 1) 9 7 (1 5 7 3 (18 9-10

-i footnoto. at 'wid of table.

62

I'l

Frounm 47 (Coniinued)

UNGION AND BrATION HOUR UC 5P OCT NO D A NN YRS RMV~

(LBT)Eastern Lowlands:

BrattBlava/lvanka priDunaji ............. 0700 3 4 10 14 10 10 to 161 16 1) 12 6 142 9-11

Brno/Tufany ......... 0700 3 3 5 11 12 12 11 11 1 II 9 4 104 11-12Hurbanovo .......... 0700 3 4 6 11 12 11 11 11 9 11 0 5 102 10Kolco ............... 0700 1 1 7 10 II) 12 11 12 12 11 7 3 95 10.- IOQtrava ............ 0700 4 3 4 1) 12 I 13 12 t1) 11 8 G1 102 10-I IIPforov.. ........... 0700 2 2 4 7 7 7 0 5 3 4 4 3 53 0-10Uslgorod** .......... 0700 5 4 7 11 14 12 10 10 9 9 6 4 101 8- 4

Eastern Mountains:Kasprowy Wleroh**.., 0700 * * 1 £ 5 0 11 10 9 4 1 * 50 7-8Lomnlokf AtIt ....... 0700 0 0 0 1 .3 10 9 7 5 I * 45 5-7S'1ad ................. 0700 1 2 4 8 6 6 4 4 3 4 6 3 50 7- 1)

Western 1ills and Plains:NMsk6 Budovioo ..... 1300 6 5 11 14 15 15 17 14 15 11 10 5 137 7-9Cheb ................ 1400 5 01 11 12 14 13 16 13 14 11 12 6 132 4-5Hradec KrAovI ....... 1300 6 4 11 14 14 16 15 14 13 13 9 8 138 4-6Llberee .............. 1400 2 6 6 7 12 13 13 13 10 11 1) 3 111 5Mieloovka ............ 1400 * 2 4 6 9 9 1) 8 9 11 3 1 72 0-lPliefi/Dobany ....... 1300 4 4 13 14 16 18 17 14 13 11 9 5 106 3-4Praddd .............. 1300 1 1 2 7 8 9 8 11 8 6 3 * 62 3-5Praguo/Rtynd ....... 1300 3 4 11 12 15 13 14 13 15 14 I1 6 130 11-12Pfibyslav ........... 1300 3 3 7 10 14 14 16 13 13 10 6 4 114 6-7

......... 1300 * I 1 4 6 8 7 7 7 A 2 1 49 10-11Teplioe .............. 1400 6 6 14 15 16 15 15 1 6 I5 14 12 5 149 0- 40

Easatern Lowlands:Bratiulavallvankca pri

Dunaji ............. 13110 7 5 II 11 12 15 13 10 1 111 12 9 140 8-11Brno/Tuanmy ......... 1300 5 a 9 11 14 18 14 16 15 12 11 6 132 11-12Ilurbanovo ........... 1400 8 7 11 14 Is 16 14 15 14 1M 12 9 147 10Kotioe ............... 1801) 4 5 II 12 13 13 16 14 15 1M 10 5 130 10-lIOstrava .............. 1300 6 5 10 14 18 16 16 14 15 14 11 7 144 10-11P rov ............... 1400 4 5 91 I 12 0 11 2 9 11 6 6 107 9-10 .

* Ushgornd** .......... 1300 6 8 14 1 16 17 1I 16 Ili 17 10 7 157 5-7amttrn Mountains:Kasprowy Wiuroh**.. 130)0 1 I 2 0 I 12 13 II 7 3 I 67 6-7Lonniuokt tt ........ 1300 * 0 * I 3 8 II 10 8 7 I * 40 4-6',............. 1300 3 3 ) 14 14 17 17 16 1 iI ) 5 132 7-9

Wostrn HIlls and PlainsOeskd BIudbjovioe ... 1000 4 4 8 14 I 13 13 12 M0 9 8 5 1.2 8-9(hnb ............... 1900 3 II 12 14 I5 12 12 1I) 13 9 81 124 3-4tiradoo KrAo, ...... 1 i00 5 2 8 1I 12 14 0 QI 6 7 11 4 94 4-5ltr. ............. 1900 2 3 9 101 12 It0 15 14 12 13 8 3 114 4-5

PlseflDobtany ....... 1900 3 6 9 15 16 15 15 18 9 II 8 3 128 3-4Prad~d ............. 1900 * * * II I L1 9 II 4 1 I 51 4-5Pratm/Ituayn6 ....... 1900 2 :1 I0 15 17 17 17 17 17 15 II 5 144 11-12lPlqbymlav ............ 1)0 2 3 7 14 I1 16 19 17 19 15 1) 2 140 7--hAnlokkL** ........... 1900 I I I 2 61 8 7 6 6 : I * 41 10-I I

Bastorn Lowlands:Bratlslava/lvank prl

i unajl ......... ... 100 5 6 13 17 17 18 17 17 15 13 1l 7 156 9-Il1llrno/Tulany ........ 1900 3 6 10 15 17 18 It0 16 17 14 I 6 i150 11-12

Kogliae( ............. 1190 2 3 8 13 1A 15 in 17 16 I I3 ) 4 131) IIOstrava ............. 1900 4 9 I5 1S 15 13 12 12 14 9 6 130 10-1 I-zhliorod** ......... 1901 4 4 9 II 15 13 II 1 12 II 7 7 119 h-6

Eastrnm Mountaim:Kasprowy WIurehi*.. 110 i) * I 2 61 I0 12 12 0 7 2 * 6(0 7-81iomnoki Atit... .101 0 0 (1I 3 9) 11 10 7 4 1 48 A-7HllaS............. ... 190 I 3 8 14 in 14 1I 13 9 0 7 4 108 8--Il

, <0,8 day.* Near bit oiitIdh (s-.ehotIovakia.

03

Fzwunm 48, MEAN NUMBER OF DAYS wITH CEILING* 7984 FEET, VISIBILITY 2)Wj MILES, AND SURFACE WIND

SPEIID -10 KNOTS AT SPECIFIED HOURS

REION10 AND) STATION HOtUR JAN PinU TAI .1T MA1,JNLiI AUG SU (r LCOV~ ANN YIW RNO

Wtstern Hills and Plains:Nsk6k Btudfjovice ..... 0100 17 12 20 20 28 27 28 29 23 21 15 14 259 8-9Iradeo Krtidov ...... .. 0100 22 14 23 29 28 28 27 28 26 21 19 17 282 4-4IIlzoi/Dobtany ....... 0100 (3 6 18 23 25 22 22 27 14 11 12 6 193 3-4Pradfd .............. 0100 4 4 5 7 6 8 7 6 6 6 4 4 66 3-4Prague/RuZyn6 ....... 0100 11 11 18 21 24 26 24 25 21 19 15 12 228 11-12P1Ihyellav ............ 0100 12 11 14 20 23 23 27 24 21 17 11 12 213 6-8Anika** ........... 0100 3 3 4 5 5 6 6 a 6 6 4 4 57 9-11

Eastwru Lowlands:Bratihlava/Ivanka pri

Dtuaji ............. 0100 13 14 19 23 25 23 26 27 26 24 19 15 258 9-11Bro/rita y ....... -, .00 17 16 21 25 28 27 29 29 27 22 18 15 274 11KoNt ................ 1012) 14 14 21 23 25 26 21 27 28 25 19 14 262 10-11Ostrava .............. 0100 14 12 16 21 25 26 27 27 23 17 12 15 234 9-10UlJhgorod*# .......... 0100 20 17 25 26 28 27 30 29 28 28 21 18 294 5-7

Eastorn Mountains,.Kasprowy Wioroh** ... 9100 7 8 10 8 10 10 10 11 11 12 10 6 111 6-Lomnioktt 9tt........ )0 10 11 9 8 9 14 14 11 12 16 14 11 138 2-4S .a .............. 0 t0 14 12 22 27 28 27 '9 29 25 21 1o 15 267 8-9

Woutern IN l11 and Pins:

,(Oskd Budjovlo .... 0700 15 11 1 19 231 24 24 24 14 14 14 12 211 8-0

C11.b ............. 0800 7 6 10 15 16 1o 10 12 11 9 8 5 132 4-4l1radoo KrMlovA ....... 0700 20 11 15 24 20 23 23 24 18 14 13 15 218 3-4Lberc ............. 0800 6 7 12 14 17 22 22 20 18 15 0 9 168 5-6Plsnfi/Dobhlny ....... 0700 10 7 14 12 17 19 22 22 8 9 9 7 156 3-4Prad I ............ 070) 4 5 a 7 1 8 8 11 7 7 5 4 79 4-5Praupe/11aytA ....... 0700 I.1 8 I1 17 21 20 22 22 17 12 11 11 185 11-12PIbysav ............ 070) 10 10 1, 15 i9 19 23 20 18 13 9 10 177 7-8g [niuAka** ............ 0700 3 4 5 4 6 0 0$ 6 5 11 3 3 57 8-11'repllo o .............. I 0800 11 9) 1) 15 21 25 23 21 17 10 8 0 183 2

W~ateen Lowlantds:

nrat1ava/Ivanka pri. Diaji ............ 0700 14 11 15 19 22 23 2A 26 22 19 13 13 221 9.-Il

Brno/Tfmy ......... 0700 14 Ii 14 20 24 24 20 25 21 1:1 13 14 216 IIKoAtec ............. 0700 1 t 12 20 21 21 22 25 26 26 22 17 13 238 10-1iOstrava .............. 0700 13 t0 13 19 22 23 26 23 1o 16 12 13 207 10-I

* Ushgorod** .......... 0700 19 15 23 25 27 26 27 27 211 25 21 17 277 5-6Eastern Mountains:

Kamprowy Whirch** ., , 0700 6 11 13 0 12 13 14 14 13 10 11) 8 130 5-7Lonloki Atft ....... 0700 iI 8 11 12 15 16 1 4 I 13 13 149 3-51ia............... 0 700 13 10 I 21 22 24 24 20 14 13 10 15 200 79

Wetern litle and Plains:._ k6 Bud~jovion. ..... . 1:300 17 13 is 22 25 25 24 25 t4 20 15 13 241 7-9

%hb ................ 1400 1 0 1) 13 17 19 24 22 21 21 14 10, 8 188 4-51radeo KrftovA ....... 1300 19 12 21 22 24 25 27 25 27 22 16 17 256 4-6Lib~1ureeo... ..... .. 140)0 s 11 12 11 15 17 Is 19 18 13 12 1Q 161 6Pisn/forny ...... 1:300 8 H) 18 20 24 21) 24 21 18 to) 12 7 202 3-4Prud~d .............. 1:00 4 1) 7 5 5 4 4 8 6 7 5 4 67 3-5Prague/RHiasyn6 ....... 1300 it) 10 In 17 19 19 I) 20 19 17 14 13 1t 11-12Pfibymlav ............ 130) I, 10 II 13 tI 17 '21 19 18 13 7 1i 166 0-7Anlpeka**......, 1301)0 4 4 4 5 4 4 :3 5 6 6 4 5 53 8-U)

Eantern Lowlandp:iratlslava/Ivanka priDunajI ............. 1300 11 9 14 14 1I Is 20 t) 19 I) 14 11 184 8-11

Brno,'Tufany ........ 1300 13 12 In 15 18 20 21 22 20 18 Is t 10 197 11Kolin( .............. 1300 13 13 18 17 19 20 21 22 21 22 18 13 216 10-11Ontrava .............. 1300) 12 134 15 18 22 24 231 22 22 11) 14 11 216 10-lIUshgorod** .......... 13 1 r II 24 21 24 231 24 20 24 27 22 1 258 5-6

se fotuot"e m* end of table,

(Il

Fzouuu 48 (Continued)

RIOU(ION AND WVATION HAOURt J li MAI~~ A I OI 7L IAm PV r NOV DUO ANN Yllfa RMC

1(astorn Mc-"ntaiis:Kasprowy Wicrah**.. 130 9 I I 10 9 12 It 10 12 10 I0 10 7 121 5-6.omnck, Atit ....... 1100 15 12 1! IM 7 3 7 8 II 20 1(1 14 133 2-1•111 ................. 1300 9 11 21 22 23 24 24 26 26 24 23 13 247 7-9

Western Hills and Plaind:ek6 Bud jovioo .. 1100 17 t3 22 26 27 28 29 21 27 24 17 15 275 8-9

Chub ............. 1900 5 II 16 17 22 27 23 24 24 16 10 5 200 3-4Hrado K.Iov ...... 190) 19 13 22 20 21 28 29 29 27 23 19 16 280 4--5Llbeo ............. 190 7 8 10 17 20 23 24 24 21 18 10 7 103 4-5Pluol/Dobtany ....... 19 10 9 22 26 20 26 28 28 22 I8 15 8 240 3-4Praddd ............. 1)00 4 (1 / 0 9 1t 8 9 6 5 4 3 73 4-5Pragun/ItRuyn6 ...... 1900 12 10 16 21 23 24 25 26 24 20 13 12 226 11 -12Ptbyslav ........... 1900 13 14 16 21 25 23 26 27 25 22 12 12 234 7-8

niAeika** ........... 1000 4 4 3 4 5 7 7 03 5 4 5 3 57 8-1IEastern Lowlands:

Brat ilava/tvarnka prlDunni ............ 1900 1 H 1 19 22 25 25 27 27 27 25 20 14 287 ti- I

B-no!Tiany.... 19.1000 15 14 19 21 25 26 27 28 27 23 17 14 250 11-12KoIce ............... 1900 12 14 20 22 22 25 2 27 20 26 20 13 252 11O irava .............. 1)00 14 13 19 2.1 28 28 21) 21) 25 23 10 13 261 10-11Ukhgorod** .......... 1901 18 I0 23 25 28 26 29 21) 27 27 22 10 280 5-6

Easturn Mountains:hasprowy WieroI** ,

., 1900 8 H II 10 UI 1) 12 12 it) I90 0 8 115 6-7on|1ok Atttt ....... 19101 II 7 9 12 I0 II 9 9 W0 13 14 10 127 2-4

HIM ................. 1901) 14 1 24 27 28 27 29 31) 2) 27 23 17 210 8-19

C Cidling 1inroln I d'101nod as ' 5-vighth clouci cover,

Wa* Nur but outaidm ('souohslovakia. I

* J

~1

S=

Fxouitm 49. MEAN DAILY MAXIMUM TEMPERATURE (*F.)

IINKON AND BTArbON JAN D -A_ 7911 MAI APRI MAY JUN JUL &UQ 111P OCT NOV lDIC ANN iNl 11110

Western Hills and Plaias:Bo .iny.................. 34 37 47 57 67 78 77 75 69 586 45 36 56 25

av.................. 33 37 47 57 67 72 76 75 69 6 45 35 56 25Ooskd Bud6jovioe ............ 33 37 47 56 65 71 75 74 68 55 44 35 55 25Cheb ....................... 31 35 44 53 62 68 72 71 65 53 42 33 53 25Hradeo Krlov6 ..... ... 35 37 47 58 67 73 77 76 70 57 48 36 50 25Javidko ..................... 30 35 44 55 6b 71 74 73 67 54 42 33 54 25Libereo .................... 31 34 44 54 04 69 72 71 66 53 42 33 53 25Litomyll .................. 31 35 45 56 65 71 74 73 67 55 44 33 54 25MariAnak6 LAsn ............ 31 35 44 53 62 88 72 71 65 52 41 33 52 25M~Ato Albruhtce ........... 32 34 43 53 62 68 72 71 64 53 43 35 583 25Milelovka .................. 27 30 38 48 57 63 67 6 60 47 37 29 47 25Panel ..................... 30 30 38 44 53 60 83 63 57 47 37 30 46 25Plmefi ...................... 32 37 47 56 66 72 75 74 08 55 43 35 55 25Prad~d ..................... 21 10 27 85 45 51 54 54 48 42 29 26 38 4-5Prague .................... 34 38 47 57 87 74 77 75 68 56 46 36 56 25Ptbylav .............. 29 31 40 54 60 68 89 70 05 55 41 33 a1 6-8Rolmitil pod r ulmtnem .. 32 37 40 586 65 72 75 74 68 5b 42 33 55 25gunleika* ................. 24 24 27 34 44 49 53 51 46 38 31 26 37 50Tibor ..................... 31 36 45 55 85 71 74 73 67 84 42 33 54 25STei ................. 30 35 44 55 64 70 74 73 67 54 42 33 53 25Teplio .................... 33 37 46 5 66 72 76 74 68 55 44 35 55 25Vitkov .................... 20 32 42 53 683 60 73 71 65 53 42 32 52 25

Eastern Lowlands:Bratislava ................ 33 38 48 60 69 75 79 78 72 58 40 36 58 25Brno ...................... 32 37 47 59 68 74 78 77 70 57 45 36 86 25.Uurbaovo ................ 33 38 49 61 70 76 80 79 73 60 48 37 89 25Koiuo3 .................... 31 36 46 58 69 74 -9 77 71 58 40 35 57 '-

SLtuen.eo ................... 32 38 49 1 71 76 81 80 73 00 46 36 59 25Opava ..................... 32 35 44 55 65 71 75 70 07 55 45 35 54 25Ostrava ................... 33 36 47 58 07 73 78 70 89 56 46 35 58 25P14i1any ................... 33 38 48 60 69 75 79 78 71 58 46 30 58 25Pferov .................... 32 36 47 58 87 73 77 75 at) ad 45 35 a6 25StrAinioc .................. 33 37 48 59 68 74 78 76 70 58 46 36 57 25Umhgorod* ................. 33 35 47 59 71 74 78 78 72 11 49 36 58 15-1Zuojmo ................... 32 37 47 58 637 73 77 76 70 56 44 35 50 25

Eastern Mountains:Bansk* Atiavnioa ........... 31 35 43 54 6r 71 74 73 07 54 42 33 54 25Breano nad Ilroom ......... 28 34 45 56 60 72 75 74 68 50 43 32 54 25Bystilika .................. 31 35 44 55 04 19 73 72 66 55 44 35 54 25Kasprowy Wforoh ......... 11) 20 25 20 39 47 51 50 44 38 30 24 35 7-8Lomnfok Ati .............. 15 13 18 26 34 42 45 44 31) 34 25 20 2) 5-7LyaA flora .................. 24 20 32 42 52 58 61 60 55 44 35 26 43 25Oravsk Podilmok ......... 30 34 44 54 65 70 74 72 67 85 44 34 54 25Sli ..................... 31 37 47 119 69 75 79 78 71 88 45 38 57 25Starl Sinokoveo ............ 30 33 40 49 58 63 67 66 61 81 41 33 49 25Tren latko Toplloe .......... 32 37 47 88 68 73 77 76 70 57 54 35 56 25Turilansky Svlit$ Martin..., 30 34 44 55 15 70 75 73 17 10 44 34 54 25

" Near but outside Caechuulovakia.

66

i II II I I II I I I.II I

1!FGmtJm 80, MHAN DAILY MINIMUM TEMPERATUR (O',)

.RGION AND i VAT) ON , , .. , ,U . ANN ... iRa .

Wostara Hill and Plains:Btoeny ................... 24 25 31 38 45 51 55 583 48 41 36 28 40 28O .aIav................... 22 24 30 38 45 50 84 53 47 40 35 26 39 25Ineakd Budjovco ........... 21 23 29 37 44 49 53 82 46 39 33 25 37 2ACheb ...................... 22 22 28 35 43 48 51 00 45 31 33 25 37 28Iiradec KrAlov6 ............ 22 23 20 37 44 50 54 53 47 39 3 20 38 25JvifSko ..................... 21 23 30 38 47 52 50 55 49 40 34 25 39 25Lbrc ................., 22 23 29 38 44 49) 54 53 47 4U 34 25 34 125Litomyll .................. 22 24 30 38 46 51 55 64 49 40 35 26 39 25MarlAnmk6 Limn ........... 21 22 28 35 43 48 51 81 44 38 32 24 37 25hMftto Albrohtic .......... 22 23 29 37 45 at 55 55 50 41 34 26 39 25Mlleiovka ...... ...... .. 1o 21 27 34 42 48 52 52 47 417 30 22 36 28Palott ............ , 18 10 24 31 38 44 48 48 43 3h 27 20 33 25.Pisod ............ .... 24 25 29 36 44 50 53 52 47 39 31 26 38 21Prad~d ................. 1 11 19 25 33 41 44 45 30 32 23 21 29 4-5

- Prague ..................... 263 28 33 41 41 50 (10 58 53 44 37 29 43 28PfIbyelav ............... 21 20 27 30 4 49 51 62 40 :18 33 25 37 6-8RotnitA pod rTmlltorn ..... 19 21 27 34 42 47 51 W) 45 37 30 22 35 286nioika* .................. 14 14 18 24 3 3 38 42 41 37 29 22 17 27 50TAbor ................. .. 20 22 28 36 44 50 5: 52 47 38 33 24 37 28

* TQl .............. .... 18 20 27 85 42 47 51 49 44 37 31 22 35 25Toplioe .................. 24 20 31 39 47 53 fi7 65 50 41 35 28 41 28Vltkov ... .. ......... 11) 21 27 36 43 41) 58 52 47 :,8 312 24 $7 25

Eastern Lowlands:-ratlglava ................ 23 20 33 41 49 55 58 57 51 43 37 28 42 28Brno ..................... 22 24 31 31) 47 53 id 56 41) 40 115 27 40 25Jurbanovo ................ 22 25 12 41 40 84 58 50 51 42 317 27 41 '16KoIIoe ................... 19 22 21) 38 47 53 56 55 48 39 84 25 39 25Ludenoo .................... 1 22 3) 31) 48 83 17 55 49 40 35 25 39 25Opava ....... .......... . 2( 23 28 37 44 41) 53 52 47 30 4 26 38 25(14trAva....,......... 21 24 30 38 45 6 A1 115 54 48 40 815 26 39 25Plotany...................22 24 1 39 48 b3 57 55 I1) 42 36 27 40 26P•tirov .................... 21 2, 30 3s 411 81 55 A4 48 40 35 27 39 58trinie .................. 21 231 30 3S 463 81 55 54 48 40 35 26 39 25lahgorod* ........ ......... 22 24 31 40 4) 54 57 50 IS 4:3 :17 26 41 16-16

' Znojmo ................... 22 24 31 38 40 52 115 55 41) 40 38 20 40 35.antorn MottinMs:

flanaki Atlavnica ........... 20 22 211 :18 47 52 5 6 55 49 40 33 24 3 2 ,Broano nad lHrooin........ 12 17 24 34 42 47 80 4) 43 36 31. 21 34 15BytlI~ka ................. 10 20 27 30 44 41 53 52 47 40 34 24 37 25Kauprow WhorchO........ . I 10 17 22 3,0 31) 41 4 130 3(0 23 18 27 7--8Loniiok Atit .......... 8 5 I) 11 24 :12 34 :44 30 20 17 13 21 5-0LymA Ilura ................. 13 1 I 21 21) 38 44 47 47 42 33 24 17 31. 25Ornvuxc PodsiAiok ......... 18 18 25 34 481 48 AI 80 44 37 32 242 34 25SH0 ... .. .............. 17 20 29 38t 44 50) 53 52 40 : 8 33 23 37 25Star Srook ovee ............. I 11 2:1 32 41 40 41 410 44 315 28 20 33 25TronNnske 'ropito ......... 21 28 20 38 45 50 54 53 47 40 35 26 38 15'mr6lainky Hvltf Martin.... 18 20 28 36 48 41) 53 At 40 38 33 24 37 25

Nhtr btt itith Cfohtolovalai.

_-.

1.%

Muamo bi. AB13OIW1' MAXIMUlM THMPPHRATURE (-F.)

LIMUION AND 811,010N JAN 49M MARI A1I1U MAY J7N J 7l AU mr o're7Y ) ANN YKI N3O

Wetnru Hills and Platin:Bhfoxiny ................... 6A 58 (i8' 8J us8 06 95 98 91 H2 64 57 08 25

(A5lav ..................... 8 59 72 85 w9 97 95 97 93 84 69 61 97 25.. Ik6 Bid5ovloo ......... 59 67 75 82 90 98 8 98 94 86 73 63 08 33

* Chob .................... 54 64 114 75 84 87 91 90 87 77 64 57 91 toIlrldw KrAlov6 ........... 48 54 64 82 84 9l 91 95 90 79 81 03 u5 0-7Jevifko .................. 51 6 70 79 87 94 92 94 91 8N) 06 84 9 25Wwroo ................ 1A , (16 80 8 94 95 0.12 88 78 6i 52 05 31Ltwmylll.,. ............. 54 66 70 82 M1, 94 92 93 90 82 68 59 94 25,lebovk a ................. 49 58 05 73 83 88 92 02 88 72 50 50 92 35

Ps1n5 t 5 ...... : ......... 15 9 0 3 78 83 87 88 8 82 74 66 60 88 248........... ......... 6 3 70 82 89 98 98 97 91 81 73 55 18 20

Ibd ~d.......... ........ 43 43 57 89 64 06 73 72 68 04 50 48 73 44,tPra ................. 6 63 71 82 90 9 96 9t5 90 81 07 60 99 44Pbyalkv ................. 50 312 68 81 79 86 88 88 84 M1 13 61 88 '6-8Hotlltai pod 'ThlMnmln... - 8 9at) 74 8A 03 96 95 101 94 2 64 54 '101 25

,nloklO *.................. 40 49 5'2 590 73 73 70 79 119 04 59, Ai 79 50ST Abor ..................... 84 2 70 KI 88 05 g|2 Do9 oti 8 'j 62 5 6i go 15

ToI ....................... 55 U0 68 84 00 94 906 94 91 80 64 55 00 25'pl c7 ..................... 7 5 71 83 89 96 1101 97 95 82 117 58 1111 28

xaotorni Lowlands:DratlIvn ................. 57 613 71 82 88 98 9 N 91 i1 811 09 59 98 26Bro........ ..... .. A8 58 71 81 89 il 07 96 90 82 68 57 97 25|Hurbanovo ................. 88 02 711 83 90 98 lt 98 Ott 85i 72 58 101 28

5011m .................... 62 511 71 83 88 93 9 99 91 83 70 8 99 3sl~u~oto................. .. 52 58 73 84 8 O8 ill) 1100 91 84 67 57 100 25Opavu .................... 062 70 81 89 92 94 97 90 8 70 57 97 2sO14trava .................. 57 51) 72 83 00 15 95 tOo 92 83 70 i1 100 s3Pciltimiy ................. . 59 73 83 88 0011 98 97 91 83 09 55 98 us

* Pfirov ................... 58 61 72 8. NO 114 97 95 91 81 09 A5 97 28ttrAlktoi ................ A8 6H 72 812 89 94 96 O 91 112 70 57 96 25Uligurod* ........... . 112 01 73 99 88 01 97 99 91 :3 72 62 99 15-16

lluhskA 0tl.havt ion....... 112 sri (1 80 4 93 94 ti5 87 79 69 i 95 29Brutnu mul l1room ..... . .0 A: 1 72 83 84 03 3 93 89 78 115 52 931 28HyNtlSka ............... bt 01 18 80 84 90 94 911 88 79 69 5e 04 94Kamprowy Whur0h1 . 43 4' 40 52 08 68 70 72 72 55 48 45 72 9- toLoiunlok1 Atit. . . 42 37 42 47 5ll 61 04 67 59 55 N'2 44 07 17Oi'avskY Polaiok 54 At.........1 55 117 83 H61 91 91 93 88 78 68 57 93 2511lab ................. ... b4 A? 73 82 80 On 98 99,) 91 8l 08 54 99 33

Ktar, Stnokowio. .. . . ..... 4 no4 111 77 71) 8A1 so 88 831 72 05 59t 88 28Tredlaiske ''Toplice ......... 64 18 71 82 87 906 95 95 91 81 69 55 9 25TralatL~ vlt Mrtlli ,, . 2 n1 4 07 85 81 1 )3 97 94 88 78 67 (5 97 041

* Near but outmldi Caqhoilovakla.

iI

68 -]

'. "

Piumit 52, ABNO UTI1 MINIMUM T'MPEItATUItuq (OV)

- l3~?1O AF~$'lAION JAN I Vigl MA14 AI'l MAY JU ~.AM 3'OUr NOV DI NN V14H 1W

y ............. -12 -2 -9 13 28 30 43 38 32 18 19 -9 -26 28A( 1av ..................... -18 -30 - 23 17 20 35 36 37 28 10 14 -17 -30 28

tenk6 joviao ....... --24 -30 - I - 1 23 30 34 37 20 It) 7 -22 -39 33Ohb ....................... -12 -24 -.I' 10 25 10 31) 32 23 21 10 -20 -24 10|IrAdvo Kr4Iovd. .... 1.... -17 -17 -4 23 25 33 30 33 :32 IS 19 -18 -17 ?-8Jovlaku.. ................. -14 -21 .-.3 14 25 32 43 40 28 20 13 -O -21 25Libuate .................. -16 -31 .-8 0 22 30 37 33 23 14 6 -11 -31 31Lltotnyll ................... -17 --33 - LV 10 25 28 40 :6 30 13 14 -8 -33 ',8Millovk .................. -10 -18 I 12 21 21) 38 37 29 15 6 -8 -16 38Panalf ..................... -12 -24 -0 3 1.4 25 33 32 24 9 7 -8 -24 28

_I Pllue ................... -16 -. 21 - 11 141 2 29 38 37 7 17 10 -16 -2t 26Prad8d ..................- 18 -27 -2 0 14 25 32 :32 23 10 0 1 -27 4-8;raigu ............... .... -7 - 17 -0 18 3) 36 47 44 34 18 7 - -17 44.Mbyslav ................... -17 .- :% -2 18 25 32 37 34 27 21 9 -4 -26 6-8"othnIltll pod Ttmhwinm..... -18 -21 -1) 1) 21 32 117 34 27 19 9 -12 -21 28ule -ka*, -21 - 19 -II I 19 16 28 28 17 2 -8 -10 -21 60,bor ..................... -20 -- 20 -) 13 24 34 31 3o 28 16 IW - 19 -26 28

'6' ....... I........ .1 -30 -22 -) a 20 29 34 :12 24 13 7 -25 -310 28'Top oo ............. ....... -1) -18 -2 17 19 36 42 41 28 14 18 -8 -18 2H

"JratiwIhitv ................. - 16 - 17 4 211 27 37 46 44 31 213 19 -8 - )7 A8Sll........... ......... -7 - 23 -4 18 27 313 42 4i 27 19 10 -9 -23 28'ilrbll ovo .. .............. -23 -.3l1 --.2 121 27 :12 43 42 28 17 6 -8 -31 21K"lio ..................... -17 - 23 -2 l1) 26 2 31) 30 27 14 -- 1 -8 -23 38iilulo:o ..................... -21 -21) -4 18 22 :13 4) 17 29 12 3 - i8 -29 21,Oiivn .................... -22 -36 -21 17 27 31 317 36 28 17 11 - I8 -36 '26Ostr-v ................. -18 -27 - 15 4 27 32 41 3s8 28 18 a - 18 -27 38I'l4talny .................... -- 18 -22 -8 17 25 2 ,' 8 10 1A 01 ,-9 -22 28Pllerov .......... .......... .-- 24 - 23 - I6 19 27 :10 40) 28 17 12 -14 -24 28Ktlnlloo ................... -2:1 -. 24 -. 10 17 25 30 TA • I 26 18 13 .-12 -24 28lUah orod ................ -1:1 -2 2 I) 21 29 3i0 4i 41 32 23 1 -- I0 -,25 15.-llI1i'amtlri Molultill!l

I|hlankA Jthivniln1 ........... - W6 - II 6 to 211 312 43 ,11 3t to 1i -2 -16 29l'v, mio ntld Ilroioiw ......... -- '23 -1,1 - 14 I0 20 28 34 i0 24 9) 1 - 18 -33 265IlysttIlka............ -28 -35 - I 6I (I 20 21) 41 f1 27 17 10 --21 -35 ".Kamsprowy Wlot h*........ -18 -22 -1) I 2:1 28 2A1 1 Is 0 - 13 -- 15 -22 0-H)IboUmill uk t ............ - 2:1 --22 - 1) .-) - I 14 18 1N 8 - 1 -20 -Ill --23 17Orianvi, PodIAmok ......... -2) -- 314 -. I0 7 211 301 36 33 22 8 8 -25 -34 28

-a ............ .. .... -.18 - 32 -18 16 22 21) 31) 38 28 10 2 -18 -32 33Htar, 8gnokoven .............. -13 -3( --6 A 21 VA :18 34 216 0 19 -. 12 -31) A8

SI'ronbl ko 'plico ......... -- 17 - 2 r ,- 8 14 2n 1) 410 30i 2t1 i0 10 -- 9 -26 2-'iirhlliikv.y HvA Martin ..... I-23 -2 20 -- 13 )3 24 29 :7 372 2 1 It -18 -26 25

Neir nit outsllh' Cmonhuilovakla,

---

Fxmtlso 53, MEAN NUMBOIR OF DAYS WITH MAXIMUM TFMPRATURE i<32F.

.,,,.N AND STATION JAN IS MAR It MAY I Jt, I AU _60P ITI NOV ,D- ANN fl HMO

Weater lills and Plains:Btosiny1 ........... ....... 1 * 0 0 0 0 0 0 1 8 28 250*Bslv .................... 12 7 2 0 ( 0 0 0 0 0 1 9 30 25

cesk6 BudTjovoe ........... 13 7 2 * 0 (1 1) 0 0 1 10 33 25Clob ...................... 16 1) 3 ' 0 0 0 0 0 0 2 12 40 25lradoc Krilov6 ............ 13 7 1 * 0 0 0 0 0 0 * 8 30 25Jovfako .................... 17 9 3 0 0 0 0 0 2 * 2 13 43 25,ibroo .................. 16 10 3 * 0 ( ( 0 0 i 2 12 42 28

Litomyll ................ 15 8 2 0 0 0 0 0 0 0 1 12 30 25, MariAnskd lAsu.. ......... 14 8 3 * 0 o 0 0 0 * 2 13 40 25

Mhto Abrooitloe ........... 14 10 4 * 0 0 0 0 0 * 2 It 41 25Milfovka ................ 21 10 0 1 * 0 1 0 I 8 20 78 25Pa uif ................... 21 17 II 3 * 0 0l 0 * 3 10 20 85 25Pl106 ..................... 13 7 2 * 0 0 0 0 0 0 1 11 34 25Prdad4d .......... ........ 28 26 24 15 3 0 0 0 1 7 22 28 1S0 4-5Prague ..................... II 7 I 0 0 0 II 0 0 0 * 8 27 28P byslav ................... 21 1 7 I 0 0 0 0 0 0 5 16 85 0-8ItolmitAi pod Tfonefiw:n .... 14 7 2 * 0 0 ) 0 0 0 2 12 37 25Jnie~ka** ................ 20 24 122 13 : * 0 0 1 8 17 24 138 25TAbor ..................... 15 U * 0 ( 1 0 0 0) 2 I1 38 26

0Q .. ................. 10 ) 2 * 0 0 0 1 0 * 2 13 43 28-. Teplloe .................... 13 N I * 0 0 0 0 0 * 10 33 25

Vitkov ............... 18 1 5 * 0 ) 0 0 0 * 3 14 82 28lCastern Lowlands:

Bratislava . ............ I 5 0 0 0 0 0 0 1 9 32 28Brio ................... .. 14 7 I 0 0 ( 0 0 0 1 9 32 98Ihurano.vo.............. .. 3 1 I 0 0 0 0 0 0 1 8 28 25Kolliee .................. .. 10 7 2 0 0 0 0 0 (1 it1 37 26

L h o.. . . . . . . . . 14 r, I (1 1) 1) 0 (1 0 0I 1 8 28 25Opra .................. 14 $ 11 0 1 ) 0 0 1 10 37 25Ostrava .................. 14 2 * 0 0 0 0 0 0 1 10 35 1IPh,4Sliy................. .14 0 0 0 0 0 ) 0 0 1 8 29 25

Pfirov .................... N I 0) 0 0 0 0 1 10 3 25Strilloe ................. 14 7 I 0 01 0 0 0 0 1 0 31 25-ahi.rod e**...............14 to 3 * II 1) (1 0 0 (1 11 41 56

Eu ltoj"1.................... .5. . 2 0 0 0 0 01 0 0 It 30 25Emetern A lkitaiInS:

BaaImkA 9tiavnlia ............ III . 1 0 0 0 0 0 0) 0 2 12 40 25Dlresno nad Ilronom ........ IN 1) 2 0 0 (1 0 0 (1 0 W 13 43 25.y1tSka ............... 15 0 ) * 0 (1 0 0 0 * 2 11 40 25KarNrowy Whrch**....... .2M 26 25 20 8 I * * 4 1O 19 27 169 7-8LonlvkL gtt ............. :30 27 28 21 0 2 * 1 4 I1 125 20 186 15LymA flora ....... ......... 25 22 ItI 5 I 0 0 1 4 II 221 106 25Oravskf Pod/Armok .......... 1t 1(0 3 * 0 (1 0 0 * 2 12 43 25sNia ................... I I 0 0 0 0 0 0 1 9 32 25Star.1 Smokove ............ 17 131 0 1 0 0 0 0 0 * 4 14 55 25Trenianpike Teplcv .......... 14 ( I 0 0 0 0 0 0 0 I 8 31 25Tur8laiisky Svltl Marthi .... 17 0 * 0 0 0 (1 0 0 2 II 42 25

* <0.5 day.

$ * Near but outside OmuOho lovakla.

70

F'zuwnm 54, MEAN NUMBER OF DAYS WITH MINIMUM TEMPERATUHE E 20F,

10101loN ANDI) TAION JAN FlU MAR APR MAY JUN JULI AUQ 51P I 0T -OV 1 ANN !All Rao

Western 11t1la and Plains: 0*1 9B losiny .................... 24 19 16 5 1 0 0 3 8 19 96 25

O Iav ........... 23 19 17 5 1 0 0 0 * 3 9 20 97 26&tsk6 Bud6jovico ............ 25 22 18 7 2 * 0 0 1 5 12 23 114 25Chob,.......... .. .... 24 21 20 11 2 * 0 * 1 8 13 28 I0 25Slractec Kr&Iov6 . . 26 22 20 7 1 0 0 0 * 4 10 22 111 25

Jevifko .......... ..... 27 23 18 5 1 * 0 0 * 3 12 24 113 25Llburoo ..................... 26 23 20 0 3 * 0 0 * 5 12 24 128 25L itomyyl ................... 24 20 17 6 I * 0 0 * 3 9 21 101 28 .Marltnekd Iiond........... 26 24 21 10 2 0 0 0 I a 16 25 130 28N1sto Albrouhtoc o ........... 26 22 10 6 1 0 0 0 (0 3 12 23 111 25Milullovka .................. 30 26 22 12 13 $ 0 0 * 7 20 29 148 25Panuf. 30 27 28 18 5 * 0 * 11 1 23 29 170 25Plaml .24 21 20 9 2 * 0 0 I 4 12 23 115 25Pradd ....... ......... 31 27 20 25 15 3I * 6 17 26 30 210 4-5

- Pragl . .......... 21 17 12 1 * 0 0 0 0 1 5 18 75 25Pfibyslav ................ 21) 25 2:3 12 3 * 0 0 1 8 15 28 142 6-8RoImntA| pod Thitnum ..... 20 26 23 21 3 * 0 0 I 7 1II 28 146 25

itdekka** ........ , 31 28 30 24 12 5 * * 7 19 2O 30 21A 25Tibor... ........... 27 24 21 8 2 0 0 0 * 6 14 26 1 A 125T } 28 25 24 11 3 $ 0 * I 7 )a 26 141 25Ttpliot, ...... 23 II) 1 4 2 0 0 1) * 3 8 2" 93 25

T. Vft2uv................... 28 24 21 10 2 (1 0 1 * 6 14 25 131 25Hm3ltorfl ILowlalndm:

Bratislava ................. 25 20) 12 2 * 0 () 0 0 1 7 20 87 25Brno ................... ... 27 22 17 b I 0| 0 (1 6 3 10 22 105 25lrbanovo ................. 251 21 14 4 * 0 0 0 * 3 8 20 05 25Kotce, .I -................ 28 24 19 ( I * 0 0 1 5 11 23 118 25hLuno .................... 27 23 18 5 1 1) ( ( * 4 10 22 109 25

' Opava.. ................ 25 21 18 7 2 0 0 5 10 22 110 25()strava ................... 26 22 18 ( I * 0 0 * 4 10 23 109 25, ...... ...... 23 21 17 5 1 * 0 0 * 8 9 21 103 25Ph'rov .................... 25 21 18 6 1 * 0 0 * 4 9 21 107 25Strlno ................ 25 21 28 7 2 * 0 ) 1 5 10 22 109 25

Srgor . ........... 27 23 111 7 I * 0 * 4 11 23 1151 15-164 'noJtuu................ .. 25 21 10 4 I 0 (1 0 ( 3 , 9 22 100 25

|BatmkA t ittvnia .......... 21) 2 20 6 I * 0 * 4 14 26 124 25

|Broino ltad l|ronon........ 30 27 26 It 2 * 0 * 2 9 17 20 149 25Bytttits ................. 201 28 20 8 2 $ 0 0 * 5 12 23 119 25Kamprowy Wheroh**...... 31 28 30 28 11) 7 2 2 11 17 27 30 231 7-8Lomtdok,0 Atft ............ 31 28 31 30 27 16 12 11 15 24 20 31 285 18tLyPA Hora ......... ....... 27 27 1 6 I 0 (0 2 13 22 30 177 25Oravmk Podmmok .......... 28 20 24 12 2 0 0 1 8 Is 20 142 25

SSlld .................... 28 24 21 8 1 * 1) 0 1 7 13 24 126 2,Rtarf Smokovoc ............ 30 27 25 15 4 * 0 0 2 10 20 28 162 25Trwluzianske Toplioo ........ . 26 22 19 7 I * 0 ( * 4 10 22 112 28

* To r iimky HvltY Martin .... 27 24 21 8 I * 0 0 1 6 13 24 115 25

* <0,5 day.** Noar but outside Cechoslovakia.

$

-- - -" i..' |...

Fiauam 55, MEAN REILATIVE HUMIDITY (%) AT SPECIFIED HOUR8

It)UION AND STA'rlON NOUN JA j~ -i-MAltAP MAY JUN J Ul. AU HOOP outr NV AU NN YNa iao

(L~wr)Western Iflla and Plalhw:

Oeakt BudOjovlo.. 0100 90 90 8t6 84 87 87 8 8 89 80) 9 0)l 91 88 8-9Ilradoe Krfilov6 ..... 0100 90 W1) 86( 85 N8 HO 88 xx 90 02 90 91 8O 4--5Phon/Dobrany ...... 0100 89 88 80 8 89 86 87 84 00 00 9l 91 88 3-4Prad~d ............. 0100 8 92 01 91 91 91 94. 91 Il 89 02 95 91 3-4Praguefiluynd ....... 0100 88 89 84 80 82 83 84 83 85 89 90 90 86 11-12Pflbyslav ............ 0100 94 93 90 87 88 89 O1) 89 89 91 94 95 91 0-8gnleika* .... .... 0100 85 84 83 88 90 89 90 90 88 85 86 86 87 10-11

Eastorn Lowlands:Brattelava/Ivanka prl

Dumaji ............. 0100 87 80 83 81 83 85 85 85 86 87 88 88 85 9..41

Brno/Tuty ......... 100) 89 88 83 78 81 83 85 85 84 88 89 89 85 11Kol o t ..... ..... 0100 01 81) 84 80 83 85 87 85 86 88 9) 90 86 10-11Ostrava .............. 0101 80 90 87 84 88 88 89 90 91 90 91 90 89 9-10Uahgorod* ........... 0100 84 84 74 73 75 78 80 79 80 84 84 85 80 5-7

Eantern MountainstKauprowy WiIroh*.. 0100 78 77 70 86 88 01} 89 88 83 77 79 81 83 6-8Lointoktlt t........ 01)0 79 81 81 89 90 89 91 89 7 73 81) 87 84 4-811aa .............. .. 0100 91 89 80 84 87 80 89 90 91 1t 93 91 89 8-.9

Western 1111o and Plalna:teukd Bid(jovVou . ... 0700 91 91 9 87 85 83 85 88 91 W8 il1 91 89 8-9

Hradvo Krov6 ....... 0700 89 81 81) 84 89 81 84 87 91 02 91 89 88 3-4Plafi/Dobtany ....... 0700 81 91 8. 89 00 85 80 88 98 98i I11 92 90 3-4Praddd .............. 0700 91 95 02 IIl 87 87 90 80 0 88 92 92 90 4-4Pragt o/lluytiO ....... 0700 81) 90 87 8:1 79 78 81 84 88 il 91 90 86 11-12Ptsbyulav ............ 1)700 0)3 96 02 87 80 84 88 81) 00 04 94 95 91 7-8gnivika* ............. 0700 85 82 82 87 81 88 81) 00 87 85 87 M6 86 10-1l

Ealtcrn LowlandutBratllava/Ivanca pr 7

D)maj .......... 0700 87 K7 85 80 78 77 78 81 84 88 81) 89 84 9-1Irno/Tufamy ......... 0700 110 89 85 79 78 77 ml 85 87 90 81) 91) 85 11-12

Koiao, ............... 070 Ill 90 84 77 75 76 76 79 85 8 0 9) 91 84 11-12Ostrava..)71. . 89 1 9 84 82 81 82 85 89 91 91 91 87 10-11Unhgorod* ........... 070) 84 84 75 71 71 72 70 77 S) 84 85 86 79 8-0

Eaatorn Mountains:1(.prowy Wieroh*,,, 0700 78 78 74 So 87 86 87 85 81 75 79 82 82 7-8Lomnicki Atit ........ 07)0 81 8.1 81 87 88 8 86 81 77 71 79 87 83 5-7HIla ................ 0700 ) 90 87 84 82 81 83 87 1) 9) 91 92 88 7-)

Woutorn Bills atd Plains:* tiliny ............. 1400 77 73 02 83 83 52 04 53 57 (I11 73 80 03 25('Alav.............. 140( 8) 74 04 86 8 64 5 56 57 08 08 78 84 05 25(ak6 BdNdovluo .... 1400 78 78 (11 (10 A1) as 19 5H 0i 18 77 81 so 26C.P .............. ... 1400 84 71 08 ilI 60 58 il1) (12 71 821 87 0R 25Ilradheo KrAtov6 ....... I3110 912 SO 66 Ar, Al) 54 57 DS 5 1) it7 81) 84 67 4-6

hvw(ko. ............. 1400 m1 7( 6 1 9 1) 117 54 51) 58 (12 71 8 84 (8 25i,/htrtou .............. 140 82 77 (17 (12 o8 1) 60 (2 638 72 82 85 61) 25

Marifinkmad an .... 141)0 84 7M 07 1) 67 57 50 09 (12 73, 84 87 69 25M15to Aihroohtio ..... 1410 77 7: 17 61 S ) (10 it() (0 tI 7( 811 67 25Mi leovka ........... 14)) 90 86 711 (17 65 011 o(il 6 70 81 92 92 75 25Panolf .............. 140() H8 83 71) 77 73 72 73 75 75 80 7 Fi8 71) 2PlatA ............... 140) 82 74 165 8 , A f.) 4 5 57 68 8O 84 (5 25Pl eA/Doblany ....... 131) 81 80 07 60 03, 55 A4 5A 60 (it) 71) 85 67 3-4Pradid .............. 1400 88 9}0 gn 8) 791 78 77 79) 82 87 1)2 ol 84 2hPragtwl ............ 1400 75 (17 50 48 47 47 47 41 52 612 73 78 58 25Pramtle/111hsynd ....... 1300 At 71) 0()I no 86 87 61) 58 (0) (08 SO 84 67 11-12Pflbyalav ........... 13010 87 94 74 2 (11 (12 16 64 02 71 86 81) 72 0-7-1oniltl pod Tfon-

Imun ............. 1410 78 70 (12 57 64 53 52 A4 511 90 78 81 63 25AnIPka* ............. 13'0 85 83 83 80 A7 8it 86 88 80 84 8 8 86 10-11TAbo ............... 1400 80 7 (14 1 6 04 All g 5 6 6 (18 79 84 (15 25

Tll...................14001 84 70) 71 112 61) 68 58 57 (11 712 M31 7 6il 25Toplio. ............. 4(10 77 01) 60 83 A1 51 52 52 5b (5 76 810 02 25Vftkov ............. 1400 76 71 58 52 51 50 41 A0 52 (3 74 81) (10 25

s" footote at ulil of toble,

7.

Fzousu 55 (Continued)

.MACON AND 13TATION HlOU J.. N P JUN JU .AU NOV D ANt .. .

11liMternl Lowlands:Bratislava ............ 1400 81 72 600 8 0 12 5011 52 13 65 78 82 62 25,ratisliavalIvankti pri

D1111)unaji ........... 1300 78 74 641 54 54 50 56 54 54 01 77 81 64 8-11,uo ................ 1400 76 70 59 50 51 52 51 52 54 64 76 S0 61 251rno/Tuisany ........ 1300 80 76 63 52 112 50 54 54 58 60 77 82 64 11-12lurbanovo .......... 1400 78 70 A8 50 53 52 50 r1 52 62 77 82 61 25Kolioe .............. 1400 8O 73 61 54 113 55 54 84 55 64 79 81 64 25.... .. ., .......... . 1400 79 72 58 810 83 13 50 51 53 63 78 83 62 26Malacky............ 1400 78 70 02 583 54 52 52 53 55 64 77 79 62 26Nitra ............... 1400 SO 72 00 51 53 51 50 82 53 83 78 83 62 26Opava .............. 1400 78 7, (311 57 66 85 A5 581 57 60 76 81 65 26Ostrava .............. 1406 76 70 00 53 52 53 53 55 57 65 74 78 02 2hPletany ............ 1400 76 70 88 51 53 83 b1 52 54 63 T6 79 61 25Pforov ............... 1400 80 74 63 58 50 57 57 85) 60 68 80 83 06 258trAitdce ........... 1400 74 67 86 49 50 40 49 50 51 61 74 78 69 25.11shgorod* ........... 1300 78 74 81) 52 53 85 58 5 52 59 73 80 62 5-7ZoJn 1o ............. 1400 74 60 57 49 50 a0 49 51 53 63 75 78 60 25

EasterLn A[ountainsIlanpkA Ativnica,.... 1400 75 74 63 66 56 57 560 a1 58 67 79 80 66 25Brsno nad lrontom,. 1400 85 8 08 62 W0 60 68 t9 61 68 82 85 69 25Byntfifka ........... 1400 70 72 64 67 88 58 A9 9 60 (18 77 81 68 25Kamprowy Wiech*,... 1300 77 77 79 84 H5 80 96 85 92 80} 78 83 82 7Lonnikl Atit ....... 1400 78 78 75 82 85 91 90 88 83 77 80 75- 82 IlaLyp& fora ......... 1400 7l 7 l 8 75 ) 71 70 75 74 83 89 92 80 27

Oravsky Podsatnk..- 1400 74 658 00 54 54 55 531 M 551 132 74 78 62] 25., liab .......... ...... 1401) 711 7:4 0l4 84 50 6 45, 52 MI 6h (10 79 92, 114 25 6

8p1tk6 Nova V, s..... 1400 81 76 64 56 57 59 57 59 .18 65 79 82 66 26Stity Smokovle ...... 1400 72 71 ($2 60 51) 01 (0 (it 62 07 77 78 60 2.Tron~Ianake Toplic. ... 1400 80 75 63 59 59 87 57 58 18 67 79 84 86 25

, "I'~Tur 61imk y Hvlltt,

Martin ........... 1400 80 77 (17 H(1 58 87 8 58 59 67 79 83 66 25

7 -AttWrn 1till aut Plain":('cskO 1ud5Jovii ..... 1900 87 81 75 68 (1 7 Of1 ($6 70 74 82 88 1|0 77 8-10iradmo KrrAlovO ....... 1900 8, 97 77 65 70( 63 07 Oi9 70 84 81l 89 77 35PlAf/I)obtaly ....... 1901) 87 8it 78 A 8 70 (13 601 6$ 71 8O 88 89 75 3-4Pradi .............. 19)001 9 02 03 90 S1 88 87 SO )92 89 93 94 90 44Pragm,/$tumyn6 ....... 190 0 1 86 741 5 (18 4 17 17 72 81 88 88 75 11-12Ptibyslav ............ 1900 1 i01 8:3 75 71 71 74 75 77 8O 92 94 82 7-8Anit, ila* ............. 1900 ,1 84 84 8 90 87 8 889 81) 87 87 80 87

mtlmn Lowlainds:1 rat~lshaval/vanka% prl

.)unajl........... t M01. 83 SO 7:1 114 3 14 113 (165 71 NO 8 86 73 0-11Br rnor/Ihiny ......... 1000 (O 83 7:3 63 (12 (14 65 (It 69 78 85 87 73 11-12Ko.. . . .. ..... ...... ........ 11(... .8 8.1 7m SO5 6(17 70 69 7') 75 82 87 8 77 11Omtrava ............ 1000 87 SO1 78 70 70 711 6$) 73 71 83 87 SO 79 10-1111,hgorod*.......... 1))0 81 82 OR 112 62 fi 67 O8 (19 76 82 84 72 6-6

, 1*]aIaterni M oiltlns:ll

Kaprirowy Wivrul*. ... 100 77 76 79 88 89 9 89o o( 81 8O 8(1 81 84 7-8Lnintoki Atit....... . I I 81 if 890 S3 M3 92 91 )0 8O 82 75 80 87 85 5..?IM ................. lo() 88 1 O 77 (ig (i 1it (16 70 70 82 89 81 77 R-9

* Nar Iht oltaldt' (noohomlovitkin,

..............................................

Fiuua 50. M.EAN PRECIPITATION (INCHES)

KNUION AND BATATON JAN I fm' MAR, A I Y 1JU"$LAU l, I oar NOV I l-spa ANN .. S 11102

Western Hills and Plua:Btemny .I ......... 1.9 1.6 1,6 2.0 2.4 3.0 3,3 2.9 2,0 2.0 1.11 1.0 26,5 110

6 aav ...................... 1.3 1.1 1.3 1.9 2.5 2.7 3.2 2.9 1.9 1.8 1.4 1.4 23.2 50Ooak6 Budljovioe ............ 1.0 1.1 111 1.8 2.6 3.3 4.0 2.9 2.1 1.8 1.3 1.3 24.4 50

heb ...... .............. 1.5 1.3 1.3 117 2.2 2,6 3.2 2.8 1.8 1.8 1.6 1.5 23.3 50Hradc Krilov d ............. 1.6 1.3 1,3 1.7 2.3 2.0 3.1 2.8 1.9 1.9 1.7 1.7 23.7 50Jovibko ..................... 1.5 1.3 2.3 1.7 2.6 2.8 3.5 3.1 2.0 2.0 1.7 1.5 24.8 50Libiruo ..................... 2.8 2.3 2.2 2.6 3.10 3.8 4.0 4.3 2.8 2.8 2.9 2.7 36.1 50Litomyll ................... 1.7 1.5 1.7 2.1 2.8 3.2 4.1 3.5 2.3 2.2 2.1 1.8 29.7 50Maridnask6 U an , ........... 2.1 1,8 1,7 2.1 2.8 2.0 3,2 3.1 2.1 2.0 2.0 2.1 27.0 80Mto Albreohtio ....... 1.5 1.4 1.7 2.3 3.2 3.5 4.0 3.3 2.5 2.4 1.9 1,5 20.1 s0Milelovka................ 1,6 1.3 1.4 1.7 2,3 2.5 2.8 2.4 1.7 1.6 1.5 1.5 22.i 80Panof ................. .. 39 3.6 3.2 3.4 4.2 4.8 6,0 5.0 4.3 4.1 3.2 4.2 50.0 80Pla A .................. 1,0 0. 1.1 1.5 2.3 2,0 2.9 2.0 1.8 1,4 1,1 1.2 20,4 80

* PohoK a n Aumav .......... 1,9 1.9 1.8 2.8 3.7 4.4 b.0 4.6 3.1 2,4 IA 2.0 36.0 f0Pra gue ..................... 0,9 0.8 1,1 1.5 2,4 2,8 2.0 2.,2 1.0 1,2 1,2 0,9 19,2 at)

Rohtawti pod Tornlifu m-,.. 1.7 1.3 1.12 2.12 2,5 2.6 3.2 2. 0 2.0 2,0 T.7 1.8 25.5 so81tina nad Zdobnict ........ 2.5 2.0 .8 2.3 2.7 3.6 4.3 3.9 2.6 2.5 2.5 2.4 33.0 40

........ .......... 3.6 3.0 3.0 3. 4.0 4.8 6.6 5.5 4,3 4.1 3.5 3.8 48,3 80TAbor ......... .... . 1.4 1.2 1.3 1.7 2.5 3.0 3.2 2.8 1.8 1.9 1.5 1.6 23.7 51)TeIl ..................... 1.7 1,8 1.2 1.8 2.4 2.1K 3.3 2.7 1.8 1.9 1.7 1.7 24.3 60Teplioe., ........... 1.6 1.4 1.2 1.5 2.0 2.2 2.8 2.2 1.5 1.5 1.5 1.5 20, 09 0VtJprty ................... 2.7 2,6 2,4 2,6 3,3 3.5 4.1 3.7 2,6 2,8 2,2 2.4 34,0 80Vitkov ............ ....... . 1.3 1.' 1.5 2.0 3.1 3.3 4.0 3.6 2.6 2.5 2.1 1.6 28.6 50

Eatintu Lowlands:Bratisiava ................. 1.7 1,0 2,7 2,) 2.8 2 , 2.8 2.4 2. 2,32.42.3 26,4 50Brno ... ................. 1. 1 0.9 2,2 1 5 2.2 2,8 3 ,0 2,5 1,7 1." 1.0 1.4 21.5 50flurbanovo ................. 1,5 1 ,3 I. 5 I.8 2. h 2.3 2.3 2.0 1.8 2.0 ,.2 1. 229 s0Kolio ................... 1.2 1 .14 1.4 .1 2.8 3.2 3.2 3,0 2.3 2.0 2.2 1.6 26.2 go1W d2,ec ............... 1,4 1,3 1.5 2.8 2.7 2,5 4.4 2.2 1,) 2,1 2,5 2.0 24.4 51Malaoky ........ .......... 3 I ,3 1,4 2,21 2, 2.0 3.1 2.7 2,2 2 ,0 2.0 1,6 24.6 802Nltra ..................... 1.4 1. 1.6 1.7 2.5 2., 2.3 2.1 1.0 2.11 2.1 1.8 23.4 0Opuva ..................... 1.0 0,. ) 1.3 2.8 2.2) 3,1 3,9 3.3 2.2 2.1 2.0 1,3 2 .2 50Ostrava ................... 2.5 1.4 1.7 2.1 3, 2 3,8 4,3 4,1 2.( 2.4 1,8 1,5 30.3 BOPiletany .................... .) 1.4 1. 6 1.8 2.4 2,16 2. 2.6 2 0 2.1 2.3 1,9 24.6 50P erov .................... 1,3 1,1 1,3 1.14 2,6 3.1 :.7 3.3 2.2 2.2 1,8 1,5 25.7 50.trA lioo ................... 1.2 1.0 1.3 1.6 2.5 2.6 3.3 31.0 2.0 2.0 1.7 1.4 23.5 50Ushiorod* ............... . I.2) 1.7 1.5 2,1 2,7 :1, 8 3.0 3.3 2.3 2.1) 2.8 1,0 290.6 10Ztojino .................. 1.2 1.2 2.2 I6 2,4 2.9 2.8 2,7 2,7 1,7 1,5 1.5 22,2 50

Eastern Motintelna:Banak& Atiavnuc ........... 2. ) 1.2) 2.3 2,6 3,34 3, 3.3 2.7 2,6 3.0 3.3 2.8 33,4 5)Brnano nad lTronorn .......... 7 1.5 1. 2.0 3. 3.3 3.3 2.7 2,3 2.3 2.6 2.0 28.6 5)Byttfifft .................. 1.5 1,3 1.7 2.2 3,0 3,4 4.1 3.2 2,7 2.6 2,2 1.7 30.2 5)Kauprowy Wioroh* .......... 3.4 3.5 3.8 (2,20 5.8 1.6 815 7,8 3.7 3,9 3.8 5.1 64.2) 5Lomnickt AM .............. 4,7 4,.6 3,5 4.9 5,4 6.7 8.1 1,3 4,8 4,1) 5.4 6.1 65.0 50LysA THora. ... ............. 3.8 3.8 3. 4.1 5.1 6.1) 8.4 7.6 4.7 4.1 3.1 :1.10 60.3 501Moillaborco .............. 2.2 2.1 1,7 2,2 2,0 3.7 4,0 3.7 2,6 2.5 2.4 2.3 31.0 50Oravnkt Podasmok ........ 2.0 1.9 1119 2.2 3.2 3.9 4.3 4,0 2.9 2.6 2.4 2.0 33.1 50HIa ..................... 1.8 1. 1.8 2,0 3.2 3 . :i,0 2.5 2.6 2.4 3.0 2.4 29.8 56)1pllkA Nova Vos ........... 2.0 0.8 1.2 1.6 3.0 3,4 3.5 310 2.2 1.8 1.7 1,2 24.8 51)itar$ 8mokovo ............. 2.0 1,7 2.4 2.6 3.7 47 5.0 44 3.3 2.8 2.6 2.1 37.2 50Trentianske Teplion ......... 2.2 2.1) 2,3 2.2 3.2 3.7 39 .43 2.8 2.7 2.0 2A6 33.8 80'Prurlanky Hvltt Martin ..... 1.9 1,7 1,7 2.0 2.0 3.2 3,5 3,4 2.5 22.4 2.4 2,1 219.1) 50

Near but outaide Oaxehoolovakis.

74

'i"uttvm 57. GREATEST AND LEAST PRECIPITATION (INCHIES)

.IN AND OTAION 7 I A PR I :.:[ I o P 0I NOV D2O ANN RU, R. C

Weatorn Hills snd Plains13fslh iy -............ G 4,4 4.4 ,L : .7 4.5 4.5 8.8 7.3 6.0 5.4 6.3 6.6 4.4 33.9 50)11 0.6 0.1 0,4 0.0 0.5 1.2 0.6 0.4 0.4 0.0 0.2 0.2 16.9! 80

('Aslav.............. G 3,3 2.0 2.7 8.1 1 (1.0 7,4 7.5 6,7 6.3 3,0 2.7 31.9 50L 0.4 * 0.2 0.4 0.4 0.7 0,4 0.8 0.5 0.0 0.1 0.2 15. 50

(Oerk6 Bludjovlee .... G 2,09 2.5 2.) 5.5 6,7 7,6 8,9) 8.7 5.0 6.9 3,2 3,0 33.2 50L 0,2 0.1 0.2 0,4 0.6 1.0 1,0 0.4 0,3 * * 0.2 16.2 50

Chob ............... G 3,6 C.1 3.4 4.4 8.1 6,8 6.0 5.0 3,9 4.5 4,4 5,0 30.3 50I" 0,4 0.1 0,3 0.6 0.4 0.6 0,7 0.6 0.4 * 0.1 0.2 18.4 50

lradooKrAlv6 ....... G 3,4 3.9) 5.6 4.5 6.0 8.0 7,8 8.2 5.1 8.2 4.4 3.1 38.2 50L 0,3 0.0 0.1 0.2 0.3 0.0 0,3 0,6 0.4 0,1 0,1 0.8 18.0 50

M nLibro.............. G 6.8 8.9 6,5 5.0 8.0 13.6 0. 12.7 7.4 12.7 6.7 6.7 81.1 50L 0.0 0,5 0.2 0,8 0,9 0,9 1,1 0,7 0,5 0,0 0,2 0,8 23,3 so

Litomyll ............ 3,7 4,4 3,8 8.6 8.8 0.1 8,8 11,3 7,8 6,0 8,0 3.3 42,5 50Ij 0,6 0,3 0.1 0,6 0.3 0.6 0, 1,0 0.2 * 0.1 0.2 18.4 50

MariAnnkS mA... (" 5,6 0, 3 8,0 h,0 8,1 7,6 7,6 0,3 4.5 6,4 5,0 6,0 38,0 801, 0.7 0,2 0,.3 0.1 0.6 0.4 0,6 0,2 0,5 0.0 0, 2 0.2 19,7 s0

Mato Albroohtim.) ..... 0 4.1 4,0 4.2 8.3 0.4 8.3 .0 7.3 7.6 7.7 4.8 3. 7 48.0 50L 01.4 0,2 0,1 0.6 0 2 0,9 1,3 0,9 0,4 0,1 0.1 0,3 18,2 n0

Mi100ovka ............ 0 3,5 2,6 3.1 3,1 2,9 5,2 A,0 4.1 4.0 2 5 3.2 3,1 25.2 10h 0.7 0,5 0.5 0.7 0.7 1,1 1.2 (1,4 1.1 0.0 0,8 0.8 10,9 10

Pl me i ................ G 2. 2.0 3.6 3.6 8.2 6.2 8.0 8.7 3.6 4.4 3.5 2.8 28.3 80L 0.3 * 0.2 0,5 0,4 0,0 1.4 (,2 0.3 0.0 0.0 0,1 13,9 50

PohofflauAumavd, . a 4.9 4,1 4,4 5,4 0.3 9,1 11.3 11,1 10,2 6.3 3,9 4.9 40.9 at)L 0.3 4)(2 0.2 0,1 0.7 1.2 1.6 (V,7 0,3 0,0 0.0 0.2 22.4 50

* .. ...... .. 0 3.0 1.7 2.4 4.1 4.7 7.0 0,1 7.6 4.0 4.1 3M8 3.1 29.4 50L (1. * 0,2 0.3 0.1 0,4 0.7 1.1 0,1 0.0 0,1 0.2 10.7 50

Pfibyslav .... . ... (1 3.7 4,1 3.7 4.8 5.3 8.7 6.8 10.0 7.8 t.1 4.3 3.9 35.3 101 1,4 * (.1 0,2 0 ,r, 0,7 0.2 0,0 0.4 0.0 0.1 (0.2 16,7 50

l Rohlnitll pod Thfio-n G 4.3 3.1) 4.3 5.2 8.19 0.8 8.6 A,0 7.3 6.7 4.3 4.8 3 07 50hn n L 1 0,6 * 0.4 1,7 0.2 (,9 0.6 * 0,3 0,0 0,0 (.2 17.0 50

Matlins nad Zdobniof,, .. 0 .2 (,2 4,4 6.1 5,2 0,4 7,8 111,8 6,2 9.8 6.4 4,9 45 ,6 80b (,0 0,3 0.2 0,1 1,4 1,6 0. 0 0,8 0,8 0.1 0, 0.2 22.4 (1

eka*............ ( 22,2 12,8 16,0 1011 8,4 101, 14.1) 15,2Mg 1(1.8 12. 6.7 8.5 70,8 811, 0,4 0,4 0,01 0.7 0,5 2,2 1.1 2,2 0,8 0.4 0.5 0,7 31.5 A0

............... i 3, 3:,0 3.0 4.9 5,0 8,6 ,1) 8,1 4.3 6,0 3.7 4.4 32.4 h0% I ( 1,1 * 01.3 0.4 0.7 (2,8 0.7 1,03 0,3 (',1 0.0 0. 1 16,0 60

'' - .. ...... ... ( 1 ,1 , .1 3,4 3,0 8,7 0,6 6.7 6.1 5.0 5,1 3,8 3,9 35.7 50i 0,4 11,3 0,1 0,4 0.4 0,8 (10. 0,0 0,2 (1 0,1 0.3 15,7 811

T', il'o l ,......... 0 2,7 2,3 2,.8 3,3 3.2 0,4 5.8 4,2 2.1 4.1 4 3,5 2.3 28,9 10.. 11 (. 0 01,2 (.3 01,8 0,8 0 , 1.0 1,7 1.2 0.8 0.3 0.2 16,1 10

Vtijprty .............. G 8 2110 0!.2 5.7 8.3 11,5 02.7 6,0 5,9 8,7 6.10 6, 88.2 811L 0,1 0,2 11,3 1,7 1,1 ,0 (,4 0,4 l.5 ).2) 0.2 0.4 23.8 50

Vftkov ........... . 2.8 3, 2 4.3 3.3 8,0 8.6 8.6 7,5 7,2 7,2 5,5 3.4 41.2 811I (1.4 (,1 (.3 0,2 0.5 1.2 0.0 1,1 0I.4 0,2 0,2 0,3 20.1 522

B f oct u it and of table,

75

- ,.,

Fiourts 7 (Continud)

REGION AND STATION jAN IfhiJAP1MY JNI JUL AUG BE? OCT NOV I 1)a ANN YRa nmeU

Eastorn Lowlands:Bratislava ........... G 5.3 0.2 5.7 6.0 10.8 7.0 6.3 6.0 6,9 7.7 8.2 5.8 38.6 50

L0 0,) 0,1 * 0,2 0.3 0,4 0.3 0.2 * 0.1 0.2 21.1 50Brno ............... C, 3,0 2.2 3,1 3.0 0.5 6.2, 7.3 5.8 5.2 5.1 4.3 3,5 31.3 50

L 0,3 0.2 0.1 0.2 0,1 0.4 0.3 0.6 0.2 0.0 * 0. 12.8 80Hrbanovo .......... 0 3,7 4.2 5.4 5.0 6.0 5.7 5,6 6.0 5.8 5.1' 4,8 4.0 34.0 50

1h 0.2 0,2 0.1 0.2 0,1 0.1 0,4 * * 0.1 0.1 0.2 14.6 50Koil'............... G 4,8 3.3 5,0 4.0 6.0 6,2 0,0 8.7 0.1 5,2 5.8 3.7 40.5 50

L 0,1 0,2 * 0,3 0,4 0.9 1.1 0,5 0,1 * 0.1 0,4 16,2 s0

Lu un o .............. f 3,0 4,0 6.2 4,0 7.8 7.8 6,4 8,5 6,2 6.9 5.0 5.4 36.9 80h 0,1 0,0 ().1 0.3 0,5 0.5 0.3 0,2 * 0,1 * 0.4 15.4 5

Malaoky ............ G 3.1 3.7 5,5 6.1 5.7 4.5 6.3 6.9 6,7 7.9 7.3 4,2 38.5 50L 0.4 0.1 0.1 0.1 0,5 0,2 0.4 0.4 0.4 0.0 0.1 0.2 15.9 50

Nitra ................ a 3,0 3,4 4.7 4.1 6.7 5.9 4.4 4.3 0,4 5,2 5.3 4.0 34.7 50L 0,4 0,2 0,2 0,1 0,3 0.2 0,4 0,2 0,0 * 0.1 0,3 15.4 50

Opava ............... G 2.1 2,0 3,4 4,0 6,9 9,0 8.0 8,3 5,6 0.0 4.1 3.1 38.7 501, 0.2 0,2 0,2 0,4 0.6 0,0 0,9 1,4 0,5 0,1 0.1 0,2 15.4 50

Ostrava ............. (1 3.0 3,3 4.7 4,4 7.4 9.5 8.8 8.5 6.4 6.0 4.4 3.1 41.6 50L 0.3 0,2 0,0 0,4 0,5 0.4 0.6 1.3 0.4 0,2 0,1 0,3 19.1 50

Pforov ........ . G 3,3 3, 4,1 3,8 6.5 8,6 7.3 7,0 7,1 6,1 4.6 3.6 38.2 50L 0.4 0,2 0.1 0,2 0,7 0,5 0.2 0.6 0.4 0,1 0.1 0.4 14.7 50

Uzhgoro'** .......... G 3.4 2,8 3,5 3,9 4.8 6,1 5.9 8.4 3.3 5,6 5,2 3,8 40,4 10I, 0.6 0,6 0,4 0.0 0.9 2.0 0,8 1,0 0.7 1,0 0,7 0,9 22,2 10G noj3o............... 3G,6 3.5 2,8 4,0 7.1 3.0 6.8 12,2 5,4 4,8 4,1 3.3 40,5 50L 0.2 0,1 0.1 0.0 0,3 0,4 0.4 0,4 0.1 0,0 * 0,2 14 4 50

EaMtern IVlonnti'ns:B3anMll ftiavnoa .... C1 01. 0,5 6.5 7.3 9.2 8,4 8.0 9.4 7.9 7,6 7.1 7.3 45,9 50

L 0.1 0,0 1,2 0.2 0.8 0.3 0.7 0,2 0,2 0,4 0.0 0.6 21,5 50Bruuo nad lironorn .., U 5.2 4.0 6.7 4.0 6,8 8,1 7.0 9,3 5.7 0,5 5,9 4,4 48,7 51

14 0.2 (,2 (.2 0.4 0.8 0,0 0.7 0,3 (1.6 0,3 0,1 0,2 18,9 50Kasprowy Whuroh**.. Q 4.2 A,1 5,6 7.A 8,3 15,0 12.8 14,3 5.0 (,5 4,4 6.2 80,5 5

11 3.1 0,0 2.1 3. 4 4.0 4,4 5.6 4.2 2,6 1,0 3.1 3,4 55.6 5Lonmickf Atit ......... l 0.0 11.1 0 0. 9 7,8 11,8 13.2 14,8 11,0 7,4 9.0 13.7 11,0 79.9 15

I 1.3 1,5 1,1 2,2 1.1U 31, 0 2.7 1.0 1.5 1.1 1,3 2,0 34.3 15M dAzilau 0oo ......... q.t 5.9 .1.7 81,8 5.1 5. 0 8.5 8.9 13.3 6.5 6,1 5.0 5.9 48.8 50

11 0,5 0,4 * 0,2 0,2 0,5 0,3 1.5 0.4 (.1 0.0 0,5 20.7 50(ruvAk. PodyA-m.. .... (1 5.5 0..1 4. 1 0,7 8,8 7,6 1110 9.0 7.0 5,4 7.8 4,5 45.0 50

L 0.2 0.1 01, 0.4 0.06 1,2 01 1.0 0.4 0.1 0,2 0,2 22.0 5M1,401 Nova V, 4. (1 (0 2.0 5.8 3,r 8.7 0,3 8.4 7.5 5.1 4.0 4.A 3.9 34.7 50

L * (),1 0.1 0.1 1) O.0 1.0 * (). t 0,2 13.2 50Star.1 mokov..... ( 5,7 4.7 6.4 8.1) 7,9 8.7 12,1 8,9 8,0 0,2 (1.1 4.9 47.1 50

1, 10 1 0.3 0.2 0I,6 1.4 l.J , 1A 1.6 0.4 0.4 0.2 0,5 20.8 50

Nurm (i-gr'atvmt ]p cLipltatilon; l.-Ihamt pro cipitathan,

• <0.05 inch.• * Near but out:d' Cztwuhomlovitki.,

" 78

"- --- 1

II -

WrattiFr 58. MAXIMUM 24-HOUR PRECIPITATION (INCIB8)

I ((ION AND I) JAN INlMARlI Ali I MAY IJUN IJ111, IAUII I' O 0CT NOv DlUO ANN YRN RXO

Western Hills and Plains:B t oiny .................... 1,3 0.9 1,5 2.1 1.3 3.1 2,5 2.6 2.2 1.9 1,6 1.1 3.1 41)

C';Ashav ..................... 0.7 0.9 0.9 1.9 2,4 2.0 2.5 2,2 1.9 1,0 1,2 1,1 2,6 50b;sk6 Bul(5jovice .......... 0.9 I1A 1,2 1.3 1,0 2.b 2,2 8.0 1,4 1,7 1.6 1.2 5,0 60Choeb ...................... . 0.8 1.2 0.8 0.7 1,8 2,1 1,9 2, 6 1,2 1,1 1.8 1.0 2,9 60liradim KrAlv6 ............. 1.0 0.7 1.0 2,0 2.1 1,7 2.2 2.1 1.0 1,7 0.8 0,9 2.2 50lli h-oo ..................... k.I 1.4 1.1 1,6 3,7 3,4 2.7 h. 2,7 3,2 2,4 1.2 3,7 45

Litoiny3l .............. 1.... 1 .1,.8 1.2 1,1 1,8 2,'1 2,9 2,0 2.2 1,} 1.) 1.3 2,9 50N' ,Mmnk L&n ............ 1.4 1.4 1,2 1.4 2,9 2.2 2.5 2.5 1.4 1,5 1,4 1.2 2.9 45Msto Allbr oo ce ........... 1,3 1,0 1.4 1,8 2.3 2.4 3.4 2,2. 2.6 2,1 1.8 1.6 3.4 46.Milh ovka .................. 0,8 0.8 1,0 0,8 , I 1,4 1,,4 1, 1.3 0, ( 0.7 0.03 1.4 10I'zo0 ..................... 0.6 0,0 0.9 0.7 1.9 2.1 2,3 2.0 1, 0 t,5 1,0 0,8 2.7 b 0)PoioK1 i I atuI L .......... 1.3 1.4 0.8 1, 0 4,3 2.9 3,4 2.6 3,6 1,4 1,6 1,4 4,3 43'rague ..................... 0,0 11,7 1,0 1,1 2.2 2,7 3,4 2.3 1,8 I 2 1.1 1.7 3.4 so

Ptybys v .................. 1.2 0.9 1.1 1. 0 1, 0 1.8 2,5 2.1 2,4 1,7 1.0 1.2 2.6 4911toftmittl pod Thimlnom .u... 1.4 1.1 1.1 1.1 1,8 I .9 2.9 k.,% 2,5 2,1 1 3 1.1 2,i) 50S1atina ucAd 7do e1lO1 ......... 1, 1.,3 1. 1 14 2,2 3.8 ,3 2.7 1.8 1,9 1,2 1.2 8,3 48h ii k * ................... 1.8 1.A 1.7 4.1 3.9 :3.5 7.A 7,2 4,5 4,1 2.4 1,9 7,6 50

r , ht, .................... 0,8 1.0 1 , 5 1.3 1.A 2,4 2.8 2.1) 1,7 1,4 0.9 1 ,2 2.9 60,. ...................... 1.2 1.7 1.0 1.3 2.7 2.3 2.4 22 2,8 1,3 1,0 1,3 2,7 49)

plil(l. .... 0.7 (0,7 1.7 0,S I 1.2 2.3 2,1 1. ( 1 0,7 1,0 1.2 01,4 2,3 10Vjprty .................... .2.1 3.7 1.5 1.A 2,7 3.8 3.8 2.2 1,4 2,3 1.8 2.0 J. H 51)Vltkov .................... . 1.3 (0.8 1.3 1.9 2,4 1.7 2.2 3. 1 2.4 2,7 1./ 1, 1 :1. 1 46

1uiastorn LowhlianciBraltllhtivi ................. I. . 1.2 1.0 1. 6 2,5 2,8 2,4 1,7 2.5 2.1 2,4 1,8 2, 48Imo ....... ............... . ,10 (.8 1.3 1,1 2 1 1.7 2. 1.1 1, 1 1) 1.6 1 ,8 3.7 1oK II[lirblilovo ................. .0.8 1.0 13 1.6 2,1 1.9 1.7 3. 5 1.8 1,60 1.11 1,4 3. A 50Kogl,, ...................... 1.5 11 1,1 1, 0 2,A, 2,7 2.0 2. 5 2.0 2.3 2.0 1,1 2,7 50)11ll4 2i1o ............... . . 1. 1 . '2 1.7 I, 1) 2,1 3,1) 2.8 2,8 1,3 1.2 3.1) 49Nitra..................... 1.0 1,2 1.1 , 2.A 1,7 1.7 1.9 1.7 1.6 1.1 1,2 2.3 38()pava .............. ...... . 1 1 .1 1, A 2.9 2,2 2.2 :1.2 2.1 2. 1,) ) 1.3 1.1 3.2 49Ostrtivit ............. ...... 1.2 0.8 1 ,5 1, 0 2,7 2.7 :. 4 2.7 2 1 1.1 1.4 0.0 3.4 50llhlrov ............ ... . . 1.7 1./ .4 2.0) 2,3 :1.0 2.8 2.4 2.8 1.8 1.4 1 . 3 , 3.0 )It#lhgorod* . .0 (. 01. 1.7 2,10 2,1 1.5 2. 1,4 .9 1,7 2, 10

............ . ...... 0.0 1. 1. 9 1.8 1.7 2. 9 :1. 0 2,8 1 .7 143 1.4 1. 3.0 4:1[ o n t li~imi:

"limmkA At.favclv ....... .... 1,7 2.2 1.1) 2, 6 1. P 1,2 2,"A 2.1 1,J) 2,1 1.8 2.2 3.2 49)11rmio d llronom...... I,A 1.2 0. 9 1.1 1.8 2.3 1.10 2.09 2.7 1,4 1.8 1.2 2.9 30iisprowy Whrcih* ......... 0.7 1.7 1.2 2.3 [.A1 4. 1 1,8 3.0 2.1 1.1 1, 1 1.0 4,1 A

Loinilck, , Ait .......... .. . 1, 2,5 1,A 1. 1 1,7 3.2 4.6 2.8 2.2 2.4 1,8 2. 4.6 Ir), lorA. ........... .. 2,4 2.7 2,8 .1.3 54.3 8.7 7,9 0.0 3.8 2,1) 2.3 2,0 7.9 43

-Medzilhboreot............... 1.0 1.1 1.7 1.7 2,2 1.8 1,0 1).7 2.3 1,8 1,8 :.1 3.7 45Oruivskc Pod,/Aok 1. 11......... .1,. I (0 1,8 2.1 3 ,0 2.0 1.7 1,4 10 1 .15 (I 50Slpifskli Nov& Vem......... 2,3 0l, 1.8 1.2 2. 1 3.2 2.8 .1) 1 .9 2.4) 1.7 0.9 :1.2 4),.8trf 8 okovou ............ 2.5 1 1 , 2.1 2.0 2.7 3,1 :1. r 2. 1 ,0 1.5 1.2 3,6 44

SNotir luit 0llt.i(h( CiumioU4Iovaki.

A/-

-- 77fC".... i

Fronmi 59. MEAN NUMBER OF DAY8 WITH PRECIPITATION >0.004 INCH

BRGOWN AND WAAION tA ~ A APRI MAY JUN JU1, AUG RAO' OU0T NO 0V D10 ANN Ylt" ItUc

Wetrn Hills and Plains:BNfiny ................ 15 13 12 14 13 13 14 14 It 13 3 15 161 50

alui ............ ......... 14 12 12 14 13 14 14 13 11 12 13 14 157 50&k6 Bud6jovice ........... 10 1) 10 11 12 13 13 13 10 10 10 11 133 50Cheb ....................... 17 14 14 15 14 15 16 16 13 16 15 16 18) 50Ilradec KrAlovd ............. 15 12 12 13 12 12 13 13 II 13 14 15 152 rOJovt~ko .................... 16 13 13 15 13 14 14 14 12 12 1h 17 167 5 )Liberec ............ ..... 17 15 14 15 14 14 16 i5 12 13 15 17 177 50Lttonyll .................. 14 12 ,2 13 13 A 3 13 13 10 I 13 13 149 850Mariinkd lAsnb ............ 16 14 13 14 13 14 14 14 12 12 14 16 164 50M eoovka ................. 18 16 14 15 14 15 15 15 13 16 10 10 185 s0Plueli ..................... 13 11 10 12 13 14 14 14 12 12 12 13 149 5AO

Pohof na Autnav6 ........... 14 14 12 13 14 15 16 14 12 10 11 13 1W7 50Prague .................... 12 12 1 S 12 13 14 14 12 It 11 13 13 150 70fiibyslav .................. 15 12 12 13 13 13 14 13 It 11 12 14 153 50

Rolmital pod Tatnitnomn .... 13 ii it 12 12 12 13 12 t0 it 12 12 142 5Slatina nad Zdobniol ......... 14 13 It 12 12 13 15 13 I 13 14 15 156 SO)gnietka* ................. 22 21 21 21 19 19 20 20 19 22 22 23 249 50TAbor ..................... I 13 13 14 14 14 14 14 12 13 14 16 108 50Te8 .................... 14 13 11 13 13 13 14 13 it 12 13 15 155 5Teplion .................... 14 13 12 13 13 12 14 13 It 13 13 15 155 5DVcjprty .................. 1o 14 13 14 14 14 15 14 13 13 13 14 106 W0Vitkov . ,.. ..... ........ 14 13 12 13 13 14 14 13 12 13 13 14 157 50

East.urn Iowland:Bratlehva .................. 12 10 10 iI II 10 11 1o 9 10 12 14 130 50

Brno ...................... 12 11 i0 12 13 13 13 12 10 12 13 18 145 soIlurbanovo ................ 13 11 II 12 12 12 It 10 10 It 14 to 144 50Koilco .................... I 1 10 I t 11 12 13 1. I I 0 1.0 12 12 134 81)Lu0n1 .................... 11 I) It 12 13 12 it 10 9 11 13 13 136 50Malacky ................... 0 1) 0 10 10 IC 10 10 9 9 10 10 115 50Nitra ..................... 11 11 it I0 12 It 11 10 10 10 13 14 132 50Opava .................... 13 12 12 13 13 14 14 14 It 12 12 13 154 5)Oatrava .................. 19 14 14 15 14 1 16 16 13 15 14 lo 177 5DPiteAm .In y................... 14 12 11 12 12 13 13 12 10 11 14 17 153 50Phcrov ..................... 14 12 12 13 M1 14 14 13 11 13 13 In 4IN 80

StrAfniou .................. 11 10 9 11 It 12 12 12 0 10 it 12 130 5)UhshgorodO ................. 13 12 10 12 12 15 12 12 11 11 13 13 146 10Zin oo .................... I 10 C) It 11 12 12 11 9 10 it 12 130 50

Easte tn Mountailn:mianukA Ativniea ............ 12 It 12 13 13 13 1I 10 40 II 12 14 142 50

Brosno nad I rono1 ......... I ) 10 0 It 13 13 11 10 1) 10 13 13 134 50y stf a ................... r 15 15 16 15 15 12 13 15 17 177 50

Knaipowy Wleroh* ......... 22 19 16 21 21 20 1) 17 13 13 16 21 217 5-7Lomnioki AMIt ............. 11) 17 1) 9 20 21) 11) 16 15 14 20 18 216 C0Med11ihtboro ............... 12 I0 I0 I I 11 13 13 10 10 11 13 131 50OravokS PodlsAok .......... 13 13 13 [a 15 16 IC6 16 14 1d 14 14 108 50slia ....................... II I) 10 1(0 12 It 11 9 M 8 12 12 12:4 50SplimkA NovA V(m ........... .) 8 ) IC) 12 13 12 11 ) 1 10 10 122 ACHtar Htnokovo ............. 14 14 15 17 17 17 17 11 13 13 15 17 185 60Trnldiaa.kv 'I'epfik ....... .. I5 12 II 12 9 II 13 14 I0 10 14 In 145 60Turimskiy Hvfit,1 Martin ..... 13 It 12 12 14 14 14 13 II 12 131 14 152 SC)

* Near but. oulmid Cobehoamhovakia.

78-

~~~~~~. ............ .. '.. ,g.... ,.., .. . . . . .. . ... ;,:,,...

,uJmm 60. MEAN NUMBER OF DAYS WITH PIUl(1PITA.'Il-N -(0.4 INCH,

IQtUON AND) OTAXLION 4AN I Alt I-It MAY AN Yamf HMUO

Weaturn Iills and Plahm; -Btfisiny ........ I I 1 2 2 3 2 1 1 1 1 17 so(bAsav ..................... * 1 2 2 2 2 1 1 1 1 14 50

osk6 Bud/jovioo ............ . * I 1 I 2 3 3 2 1 1 1 1 18 50•li b ....................... I I 1 1 2 3 2 1 1 I 1 14 50Ilradeo KrAIov6 ............. I I 2 2 3 2 I I 15 80dJvvlko .... ................ I 2 2 3 2 1 1 * 16 SOilbereo ..................... 2 I 2 2 3 3 3 2 2 2 2 25 50tolyyll ................... I I I 1 2 3 3 3 2 2 I 1 20 60

MarlAnuk6 L fI ............ I I 1 2 2 2 2 1 1 I 1 17 50MIhvovka .................. I * I 2 2 2 2 I I I 12 80Pl ...................... * * 2 I 2 2 2 1 I * * 8 0Pohot t a umav6 ........... I I 2 3 4 4 4 3 2 I I 27 a(Prague ..................... * 2 2 2 2 I I I * 11 SOPIl by lav ................ .. I I I 1 2 2 3 2 1 I I I 17 at)ItofmitAl lind Thiminm.... 1 I 1 I 2 2 2 2 I 2 I 1 17 80slatlls ni ZduhlmIct ......... 2 1 2 2 3 4 :1 2 2 2 2 25 50

.................. 2 1 1 2 1 4 , , 3 3 2 2 30 50ITAbor ............. 2 2 2 2 1 1 I I 15 IO

Il 16 .. ..................... I I I 2 2 2 2 I I I 1 15 50'T epllou .......... ......... I I I 1 I 2 2 1 1 I I I 12 50V Jpyrty ................... 2 2 2 2 2 3 3 3 2 2 2 I 24 60Vftkov .................... . I I I I I t 1 3 3 2 2 I I 20 50

l'utittrl Lowhuidhi:

lirathls ava ................. I I 1 I 2 2 2 2 2 2 2 1 18 50*lrno ... .................. 1 1 2 2 3 2 I I I 1 14 80

Ifurba uuvo ................ I I 1 I 2 2 2 2 I 2 2 1 to 50K(Inc..................... I I 1 I 2 2 3 2 2 2 2 I 19 atljuI ot I ... ............... I I 1 2 2 2 2 I 2 2 1 18 50M alaoky .............. .... I I 1 1 2 2 3 ,1 2 2 2 I 18 5)N itr. .................... I I I 2 2 2 2 2 1 I I 16 50O)pva .................... * * 2 I 3 3 2 I I 18 F%Ostrava................... . * 2 .1 4 ',1 12 '2 1 1 20 50MPia ny ................... I I 2 2 2 2 2 2 !A I 37 5)Phnrov .... ........... ..... * * 2 2 3 3 2 2 3 I 18 50strA .lth. ............... . I * I 2 2 8 2 I 2 I 1 16 60:/4njojzu............. ...... I I 2 2 2 2 I I I 1 14 5)

J i~lllslttotl Motlntliillm:'Ilm kAI Atlav lt ........... 2 I 2 2 3 3 :1 2 2 3 3 2 27 50

rnmuo iinld lirwnoin....... I I I I 2 3 3 2 2 2 2 I 21 50IlymtikI .................. .I I I 2 2 3 4 3 2 2 2 23 5(0Iomlik,0 tIt .............. 4 3 2 3 1 1 6 6 5 4 3 6 4 47 50LysmA Ilora .................. 3 3 3 3 3 (1 I (6 4 4 3 3 48 50Milalnhorn ............... I 1 I 2 2 3 4 3 2 2 3 2 24 50Oruvskf Ilodftsmok.......... 2 2 1 2 4 5 6 5 4 3 2 2 317 80H1la ....................... 1 1 2 :1 3 2 2 2 2 2 2 22 50SpikA Nov& Vns.............* * I 1 3 3 3 3 2 I 1 I 18 50Star 'lokovo ............. I I 2 3 4 4 3 3 2 2 I 26 I0Tr ionn ilmko 'I'( ilhe ........... I 1 I 1 2 2 2 2 2 I I 1 1 50TulrmiAky 8vItf Mart in ..... I I 1 2 2 3 3 3 2 2 2 I 22 5O -

• <0.5 day,* Ne~ar but outside Caoelislovakla.

$

Fumr, 61. MEAN NUMBER OF DAYS WITH SNOWFALL

*REGION ANP GTATION JAN FMB MAR APH MAY JUN JUL TAUU rSEP OU ~V DWO ANN YRS RZC

Western Hills and Plains:B feainy ...... ....... 9 7 6 2 * 0 0 0 0 * 3 8 35 806 AB v ..................... 10 9 6 3 1 0 0 0 0 1 3 8 39 30&sk BuddJovice ........... 8 7 6 2 * 0 0 0 0 1 3 8 34 30Ch ob.... ................. 12 10 7 4 * 0 0 0 * 1 5 10 49 30Hradec Kr&lov6 ............. 10 8 5 2 * 0 0 0 0 1 3 8 37 30Jov[Bko .................... 12 it 7 3 1 0 0 0 0 1 5 10 50 30Liborec .................... 14 12 10 4 1 0 0 0 0 2 6 1a 61 30Litomyll .............. 7 6 4 2 * 0 0 0 0 1 3 5 28 30Marlinskd LAnd ......... 13 10 7 4 1 0 0 0 0 2 5 11 52 30Milemovka ................ 16 14 10 7 2 * 0 0 * 4 8 14 75 30Pisof ................... 9 8 5 2 * 0 0 0 0 1 " 8 35 30Pohoff na umavi .......... 12 12 10 8 9 * 0 0 1 4 7 11 66 30Prague .................... 7 7 0 2 * 0 0 0 0 1 2 6 32 30Pfibyslav ................... 12 0 7 3 1 0 0 0 0 2 4 10 48 80Ronmital pod Tfom nom ..... 10 9 7 4 1 0 0 0 * 2 5 9 46 30Slatina ntad Zdobnl ......... 11 9 7 3 1 0 0 * 2 5 10 48 30A ieika * .... ............. 17 1o lI 14 6 11 0 0 3 9 14 16 113 80

TAbor ................ 13 10 7 3 1 0 0 0 * 2 5 11 52 30Te ......... .............. 11 0 7 3 * 0 0 0 * 1 4 9 44 30Tepli.................. 10 9 6 2 * 0 0 0 0 i 3 8 38 30Veprty .................. 14 13 ) 7 2 * 0 0 * 3 7 11 06 30Vitkov ..................... 10 9 6 3 * 0 0 0 * I 4 9 43 30

,, Eastern Lowlands:Bratlslava ................. 8 7 4 1 * 0 0 0 0 1 3 7 30. 80Brno ...................... 9 8 4 1 * 0 0 0 0 1 a 8 34 30Hurbanovo ................ 8 7 4 * * 0 0 0 0 * 2 6 27 80Ko1ioo .................... 0 7 4 1 * 0 0 0 * * 1 6 29 30LuW vn ................... 7 6 2 1 * 0 0 0 0 * 2 5 24 30M alaky .................. C (1 3 1 0 0 0 0 0 * 2 5 23 30N ltra .................... 7 6 4 1 0 0 0 0 0 * 2 6 26 30Op va .................... 10 to 6 2 * 0 0 0 0 1 4 8 41 30Ostrava .. ...... 13 11 8 2 1 ,0 0 0 0 1 4 10 50 30Pic lny .................... 9 6 4 1 * 0 0 0 0 * 2 7 29 30Pferov ....... .. ... .. 10 9 1 * 0 0 0 0 1 3 8 37 80trAilfne .................. 7 5 4 1 * 0 0 0 0 * 2 6 24 80

ZnoJto ................... 8 6 4 1 * 0 0 0 0 1 2 6 27 30Pattern Mountains:

BanskA Atinvnica ............ 9 9 6 2 * 0 0 0 * 1 4 8 38 30Brosno nad lironom ......... 9 8 4 2 * 0 0 0 0 1 4 8 35 30Bystl*ika .................. 12 12 A 3 1 0 0 0 * 1 6 11 53 30Lomniek,1 ht.t ............ 1) 16 17 19 16 9 5 4 6 11 17 19 157 17LyA ora .................. 14 14 113 10 2 1 0 0 1 (1 9 13 82 30Medlsilboro .. ........ 10 9 1 1 * 0 0 0 * * 4 8 38 30Oravak$ Pocismok .......... I I 1 8 3 * 0 0 0 * 2 6 10 51 30SIM . . ... ...... ......... 8 7 4 1 0 0 0 0 0 1 3 7 31 30SplkA NovA es .......... 7 6 5 1 * 0 0 0 * 1 3 6 28 30Start Smokovo ............. 14 15 13 8 1 * 0 0 1 4 ) 13 78 30Ten~iemsko Toplice ......... 11 9 6 1 * 0 0 0 0 1 4 ) 41 80Turthmsky Bvfit, Marti .... 1 0 7 6 1 * 0 0 0 1 :1 7 34 30

Nomr A day with FRowffIl Is defined as a day with a snowfall aminouit .0.04 11h0.

• <0.5 day.** Near but outalde G'sholiolovakin.

-80)--

Piouum 62, I)ArE!s OF FIR,,S-T AND LAsI- 8NOWFALh

A FIRK T HNOWPALIh hAST SNOWPAI,.I' Uwuton ANt) STzoN 11iet Mean latost Earliest Moan Latut nlE RuC

Woatorn l1ll and Plains:Bily ........................ . na 12 Nov ma na 20 Apr 1a 30OIAsav ........................... 12 Oct 7 Nov 16 Doe 8 Mar 16 Apr 25 May 30Cheb ..................... ... 23 Sep 31 Oct 3 De 10 Mar 21 Apr 14 May 30lIrailde KrAlov6 ................... 12 Oct 1 Nov 0 Doo 5 Mar 8 Apr 13 May 30Juv3lku........... ............ 2 Dot 2 Nov 7 Dou 24 Mar 24 Apr 31 May 30Libere o ........................... I Oct I Nov b Doo 23 Mar 20 Apr 16 May 30Litonyl ......................... 12 Out I I Nov 1 Duo 24 Fab 8 Apr 13 May 80MarlAkisk6 LAni6 .................. 0 Out 31 Oct 3 I)ou 27 Mar 2) Apr 1 May 30Milllovka ....................... 21 Sill I1 Oct I Do o3 Apr 0 May 19 Jim 30Plohoff nit illnav6 ................ 22 Sop 20 Out 1:3 Nov 8 Apr 0 May 17 Jin 30Pragguo .......................... I Out 8 Nov 315 Duo II) Fob 131 Apr 14 May 30PHIyysilva ....................... 8 Oct 31 Out I I Duo 5 Mar 27 Apr 27 May 30•fltultAl pod Tpelmiun .......... 26 smu; 27 Oct :1 )oc 21 Mar 26 Apr 23 May 30Slatllt nill Ydobtll ............... :l o1 27 Ot 63 l)uo 10 Mar 21 Apr 20 May 30TAbor ....................... .3o Sup 29 Ot 3 )eo 22 Mar 2 Apr 24 May

.'t' ........................... '1 ,op 4 Nov 19 Deo 20 Mar 21 Apr 13 May 3mT opllo.......................... I Out 7 Nov 17 lDo I1 Mar 10 Apr 14 May 30Vv prty .......................... 21 Sop 2) Out I lD(.0 h Apr 7 May 22 Jun 3)

S. VItkov .......................... 2,4 Sop 2H Out 10 )oo 27 Mar 22 Apr 27 May 301':uttoril Lowlandl

Bratbllava, ....................... 12 Ont II Nov 8 1)uo 1 Mar 5 Apr 2 May 30)

ruio......................... 14 Out 1,4 Nov 17 Doe 14 F1ob 8 Apr 14 Masy 30I hrbianovo ..................... 25t Out 1 Nov 7 D)oe 10 Fob 20 Mat 2 May 30KoAlue .......................... 27 SHop I I Nov 17 )ve I1 Mar 4 A4 pr r, May 3(0

4d1o&lno ........................ 21 Oct 18 Nov 27 Olv 1:1 Feb 2S N ar 3 May 30"Malaky ...................... 24 Out 12 Nov Ill Dc 5 14Ab 28 Mar 2 May 30

Nitra ......................... 21 Oct 17 Nov 17 I)Dou (i 10o 21 Mar 251 Apr 31)Opaiva. ........................ 8 Out 4 Nov 161 Dec 29 Mar 14 May 28 May 30

Ostriva ....... ............. . Out. 5 Nov 0 De n 18 Apr 24 May 3)

IPeitally ........................ 20 Oct i) Nov 14 loe I,' Fob 0 Milt 11 May 30.P rov .... ........ ............. 12 Oet 0) Nov 17 )ec 8 Mar 7 Apr I:1 May OtrAinlo ........................ 12 Oct. 1:1 Nov 27 I)ou I) PA,) 5 Apr (10 May 0

?nojmo .................. ..... 2) O t 15 Nov 27 D oe (I Mit' H Apr 17 May 30

Eastertn Mo::i tl na:BiltiakA Atinvidiht......... 24 Mijl .1 Nov 7 3leo 3:1 Mitt, 15 Apr 24 May 30lirvitto nila. iroioli... ... .. 1 ON. 4 Nov 27 Nov 211 I, 33Apt II I May WIlymthkt.... 211 Sv3) 30 Ot I Doc 12 Mar 2) Apr 38 May 3o0

1.otltik, Atit................. * * * * 17

Iyatt I Ira. ......... .... .... 3 p 30 op 25 Oct 24 Aptr 20 May 27 Jun 30

MoIdztllaboro.................. 26 ,p It Nov 19 I)oo II Mar (I Apr 14 May 30OnIvskf Podnk ............. I hq) 22 Oet 22 Nov 13) Mar 20 Apr 26 May 31) At

ll0 ........................ 18 Out 8 Nov 61 De 14 Mar 4 Apr 30 Apr 30

HpiAskA NovA Vs ................ 2H I ) 3 Nov 25 Dvo 132 Mat 12 Apr I May 30

Star lmtokovu "................. 16 Sop 5Oct A Deo 340 Mar 2 May 19)ii) n30Treniliko Tq'i)lio. ........... 15 Out 01 Nov ftn n4 9 Aipr 22 May 30

'urhliky Svit, Martin .......... 24 Sop 2 Nov 6) Deuo Ifn 0) Apr 2 May 30 ..

No'r Sinowfill Ii duot l t'3 its it snowfall atmoutit -.014 hIn h.

Sa Datta not available. .S iiowfall lii ouruirroid In vaiolh iilonti of tho yvut'.

---

I I 4..~ S~n~. ., . ..

Flulitio 63. MEAN NIMIBER41 OF I)AYH WITH 8NOW COVEI'1

I1(lION ANO 1i'AIN JN PA111, A M NAY JN ttJI A110 tP 0T NOV I)MO ANN Vill RMI

Wct4,rtc I 1111 aid M~atis:Sh iy................... 15 13 6 *0 0 * 1 7 43 30

.A.Iiw,................... 14 12 5 0 0 0 (I 0 * 2 9 42 30Cliu .............. ........ 17 14 8 1 0 0 0 0 0 * 2 13 55 30I ilrade KrAlov6........... 17 15 6 * 0) 0 0 0 0 * 2 10 51 30

SJ vftko ................. 20 17 1 1 0 0 0 0 0 1 3 12 61 301i,1wrea .................... 23 21 12 1 * 0 (0 0 1 4 18 80 30

* ItomyAI .................. I ) 13 * C10 0 0 0 0 * 2 10 48 30MariAtk6 Litt ............ 22 1N 10 2 * 0 0 0 0 1 4 i8 74 30Mllelovka .................. 27 24 18 5 1 0 0 0 * 2 10 24 110 30

, Plii ....... ............ 12 I I * 0 0 0 0 0 * 2 10 37 30Pollotf Ilil 81111vM ........... 31 28 28 11 1 0 0 0 * 4 12 23 136 30Prague .................... It 1) 4 * 0 0 0 0 * 1 7 33 30Ptlbytld v ............... .. 21 17 It 1 * 0 0 0 0 i t 14 67 30ItohnltAl pod Th'lilucm ..... 18 14 0 I 0 0 0 0 I 3 16 62 30Hlatina will '5dolhilef ........ 24 21 it I * ( ) 0 4 t6 77 30*l0oki. ** ............. 29 28 M 20 ) 1 0 C0 2 10 22 28 186 30Thbor ............. ....... 2(1 16 8 1 * ) 0 0 0 * o 16 63 30T eI ...................... '32 17 I0 1 0 0 C) 0 0 1 3 18 72 30Toplic .................... 17 14 0 * * ) 0 0 0 * 2 I0 40 30Vejprty ................... 27 28 20 7 1 C C) C) * 2 0 23 113 30Vltkov .................... 22 201 12 I * 0 0 C 0 C) 1 5 15 76 30

iwcerti I.owhtirndlBrat . .ava .... I. 1 1 4 * C 0 ) 0 (1 * I I 42 30lr o,..i..... . ..... 18 U3 4 * ) 0) 0 0 * I IC) 47 30Illrbaiovo ........... , 1 I 3 * C) 0 0 C) C) 0) 1 ) 38 31Kollie .................... ii) I) i * 1) 5) ) C) C) * 3 It 53 301,1161,11410 .................... 21 i o * 0 C) 0 () C) * 2 13 50 30Milalcky ................ 15 13 4 * Cl 0 ) C) 0 * 2 It 44 at)Nitra ..................... 14 1C ( 2 C) C) C) 0 C) C * 1 0 37 30Op lV .................... 1 I r, 7 1 ) ) 0 C C 1 2 11 65 30(ldrlA.. 1.. 15 7 1 C ( 0 C) * 3 12 57 30Plelitilty .................... 1 I C ) 3 * ) C) 0 1) C) * I IC) 41 SC0Ph, rov ........ ............ 17 13 5 * C) C) C) i C) * 2 10 46 WCmtl,rAl1Iv' ................... 12 0) 4 * C) C) ) 0 C) * 7 33 301

* 4 ui....... ........... lo I I A ) C) C0 C) 0 I 1I 40 30)

tisktcA Al.iivulcqn ........... 25 24 12 1 * 0 0 ) I 4 14 80 310BIroxiO muil Ih'oiiuill ........ 27 2,1 1C * I ) C) C) ) * 4 17 81 30BIyK ltkia ........... ........ 22 21 11 I ) C) C) C) C) 1 4 15 74 30.,Otimk. Atilt .............. 31 2H 30 21) 24 m 3 3 C) 15 28 30C 230 17l,ym% hor... .... ......... 30 28 30 23 1 * 0 C) I 7 18 27 108 30MIzilhnborece..... . . .... 26 23 12 I ) C) C) C) C) * 4 16 82 30C)ravk.k Pwm5utok .......... 28 24 IS 2 C) C) 0 I s 1 3 30Sihm .................... 25 21 t * C) C 0 C) C 0 C) * 3 14 72 3C)8pl? IkA Nova Ve...........22 I) I C) C) C) C) C) * 4 14 08 30Stitrf 1imokov i e........... . :0 27 23 C) * C) C) C) * 3 It 25 120 30T'rrviemkv Topllct,......... 21 17 8 * ) C) I C1 C) * 2 13 62 30TurIMuky Svit,. Mthr ..... 23 20 0 * * 0 l) C) * * 15 (1 70 30

Nirn A day wI h itl OW eovor n dnhlml ita a lay with It vcuill"t1e41lt lyer of miOW at liut 0.4 hich Int depth Ill the noighborhood of theoiI*4rvitlio uMtatiom.

* <15 day,

** Nequr hiC. outmitdo ('sinholovak lit,

S2--

Finina 64. DATE8 OF BHEtINNING AND END OF HNOW COYI.It*

l)CINNIN(I OF K(NOW C(OVIt END OF W NoW XOYl(lt(UItON AND STION MRarlct Mea [ mtit ier1Iout, I Mean J Llat_.t , 1(3(1

i W esrnt ll11tl ad Plahm

-lte ly ... ...... .... ......... ma I D oe 4 Jan 27 J..i t7 M ' d 30N aIav ................. 21 (Act, 4 Doe 25 Pub 6 Fob 13 Mar 10 Apr 30Chub ........................... 2 Oct 21 Nov 17 Fob 15 Feb 23 Mar 25 Apr 30liradc "rA .................. 2) Oct. 28 Nov 21) Doo 14 Vob 14 Mar 23 Apr 30;J ko ........................... 10 Oct. 17 Nov 28 1)m 2 Feb 21 Mar 17 Apr 30Liberec ........................... 2 Oct 16 Nov 10 Due 27 Fob I Apr 4 Miky 30Ltoyk ......................... 25 Oct 4 )oc :1 Jan 22 Jim 14 Mar 21 Apr 30Ma'lAn;aKkt lA% .................. 23 Oct 15 Nov 17 )o 4 Mar 31 Mar 0. May 30MlItIelovka ....................... 21) Mp I Nov 4 1)e 10 Mar 20 Apr 24 May 30

' 11oh1l la Aumav.... ........... p 31 Oct. "n 7 Apr 21 Apr .%7 May 30Pralkoo ........................... '30 Oct 6 1)ee I) Jan 27 Jai 8 Mar 14 Apr 31)

:' 1PPbylav ...................... 20 Oct 20 Nov 29 1)tm 17 Feb '26 Mar 4 May 30itolmItAI pod Totniltn .......... 21 Oct I) Nov 28 Doc 16 Feb 28 Mar 2 May 30,8hti tIta d Zdilito .............. .I Out. 20 Nov 28 e)n 28 Feb 3 1 Mar I8 May 3

TAhor ..... . ............. 21 Ot. 21 Nov 5 Jan 27 Feb 27 Mar 2 May 30'T10 ...................... 21 Oct. 1) Nov 28 De 7 Feb 22 Mar 1)) Apr 30T.,iplice .......................... 2) Oct I Due )1 Jan 10 Peb 22 Mar I May 30VtJprty ......................... 2:1 Sep 2 Nov "0 1) Mar 18 Apr 18 May 30Vitkov ....................... I) Oct 13 Nov 13 Jan 2 Mar 3 Apr 4 May 31)

. I'utorn LowanrdIBratilava ....................... 27 Oct. 4 Iou 5 Jan 15 Jai ) Mar i) Apr 30Brno ............. ......... 27 Oet. 28 Nov 28 Dum 28 Jan 12 Mar 10 Apr 30Ilurbanovo .................... I1 Nov 5 Due 10 Jan 28 Jan tt Mar I Apr 30

* KoAluh ........................... 28 Out. 3) Nov I t) ,hut 10 eb 12 M r 16 Apr 30AlIa e O ...................... 29 O t 28 Nov 28 Due 13 Pub I I Mar 14 Apr 30

*A - Malaoky ........................ 27 Out. 261 Nov ,5 Jin 20 Jm I Mal' U3 Apr 30Nitra ........................... 27 Oct :1 Due i JUi 1) Jam 28 Feb 30 Mar 30O pva ... v..................... 24 Out 24 Nov 4 Ji 23 Feb 24 Mar 22 Apr 30, Oxt- a ....... ........... ...... 1141 1IPoo 31 loo 2 "oh 24 Mar 22 Apr 30

PeAtany ........................ 28 Oo. 3 Iom 4 Jan 4 Feb 8 Mar t Apr 30'u ..ov ........................ 25 Oct 20) Nov 3 J1111 10 Feb 1I0 Mar I) Apr 3)StrAinlte ......................... '27 Oct. 2 IDou 20 Jan 3 Feb 1) Mar 12 Apr 31)Znoj. .......... .......... 27 Oct 2) Nov 2 Fb 2 Fb 1) Mar 13 Apr 30

iank, Ithtavniva .......... .. 25 Oet, 15 Nov 12 I)i o I Mar 2) Mar IM May 310ilrzno ual ilrnom .... .... IX Oct. I7 Nov 1 Jan 20 Fib 22 Mar 25 Apr 3101yt kn ....................... I' Oct. 1) Nov 30 1Doc 23 i'ub 27 Mar 22 Apr 310.otmnlok$. tt .. ** ** ** ** *. .**. .

lyoA on ...................... 14 Hop 18 Oct. 22 Nov I Apr 7 May 2 Jun 30MmdI1nlborce ................... 20 Oct. 21 Nov 20 Ieo 2) Fob 24 Mar 24 Apr 31)Oravmkf PodAnmk ............... 27 Hep 7 Nov 7 I)oo 13 Map 2 Apr 3 May 31)Hll ... ....... ............... . II) Ot. 20 Nov 17 loe 23 Feh 17 Mar 13 Apr 30OHpI1AkA NovA Ve ................ 10 t I 1 Nov 17 Io '24 Mar 29 Mar 30 Apr 30

j Starf Smtokovm .............. . .24 [4HoI) 3) Oct 19 itec 3 Apr 20 Apr 18 May 30Tronlimamko 'r'eplto ............... 21 t 2) Nov 31 Dl)o 17 Feb 17 Mar 17 Apr 30Tur6iunik y HvU,., Martit ......... 28 Mel) It) Nov I Jim I I) Feb 21) Mar 2 May 30

mu I Data not availabl ,S now cover Is deilnd as a confi.mttit. layer of Know at IL 0.4 Inch I dtpth In the nlghborhood of the olsrvation s tatil

* Hnow cover hi occurred In each month of the yeatr.

/.

hml(lototI 016. Al 1Ot1''1'T MAXIMtIM I)P"'TI! O1 SNOW (INCI1,1])

IW(IIO11N AND) 14TATIO&N JA~~I I-It I MA V _JUlN I lII, 1_ A IM I ( 2I ]: UT I N V D ANN YMS 411

elaWtern Mlld and PinsM:B loilly ................... 14A 2 7,2 7,1 1,6 0. , 0.0 0.0 0.) 0.0 1) .0 7.1 0.1 27.2 30*Ciftlav..................... 18.1 17.3 16-) 4.3 0.0 0 .0 0,) 0.1) 0.0 A.6 3.9 0.1 18.1 31lIradeo KrAlov5 ............ 21.-1 10. 5 16.5 0.8 ,0 001) 0.0 0.0 0.0 0.8 :1.2 0,5 24.4 30Jovt uko .................... 201,9 2,81. 171 7,1 0,0 0,0 0.0 0,0 0.,0 31.9 4,7 11.1) 20.19 30l.btrve ..................... 41.3 2 1).6 21,14 15.8 4.7 0.0 0 .,0) 0 0.0 3.2 11,8 20.5 41,3 30.ltoniyAl .................. 21.7 15, 15,0 2,8 ),) 0.0 0,0 0.0 0.1) 2.0 3,0 11.8 21,7 t1OMaridnoU iwd ............ 22,H 21.7 18,6 8.7 Il a i, 0. 0 0), 0 0.0 3.6 7,5 17.V 22,8 30MileAokak .................. 11.6 : 3, A 31,5 20.0 4.7 01,01 0.0 0,) 0,4 1:1.8 12,0 18.6 335 31PolioH tilh Ati nivi ........... :,,2 h is , 8 .4 22. 18 t,1 1 ) 0., 0 .1 0 13,8 21,7 24.4 52s,4 5821 M)Pr guo .............. ...... 13.8 17,7 Ili7 ) R .: 1,1) 11.11 0 1,10 0,01 11.10 421 3,1 21 17.7 31)"Pflbysla .................. 29., 29, 1 2S . 1 ,8 1,4 (1.11 l),1) 00 ,) t1 . 15.8 110 12,0 2,.6 30iomtl)t pod Ti,n l lii .... 25.2 26.2 28. 1:1,8 1,2 0.01) 0,0) 11,1) 0 . 1) .8 1 ,1) 12,0 28,4 H'i)-a lntiai d Mo ahlel ......... 30,7 23,[ 14,16 1,8 1.2 (.0I 0.0 0,0 1,0) I.d 1),1 1I6, 30.7 30)Anhika* .................. 1(00,4 112.2 10,0 6S1821) 8 . 1.3 4A .4) .,0 10., 118,4 45.7 18,4 112.2 30

"u'l w ~~r ...................... it,5 t0.3ti 77 is,t 9 0.8 (0,0 0i,0 0,0 0.0I s.) 4. 7 10.,3 19,.3 30

.. ov.. ...................... 21,7 1(8.6 (, 5 11.8 0 .11 . 11,1 (1.1 00 ,00 0.1 5,11 13,0 21.7 30Tl'pllt) ........ ....... .... 11,0 11 'I, 8,7 1. 2 0.4 0.0 . 01, 1 (1( 1,00 ) 2, 11 9,11 11.8 13 :11)

'eJlprt.y ........ .......... 11 I 311 -Il.3 4i3M 21 0),i 0.0 0,0 1.2 (1.7 10,6 21.A 4:1,3 30\'1tkov............... 121.t 27. :32:1 8.7 1 ,1 0. 0 1 .0 0.1) is1 01, 7,1) 7.11 it8 32.3 30

witlnterll Ll ik~ili :t.IIsrittilivi ........ .. .... 11, 1 21.1 1.1.2 2.8 0,0 01,i 0.1) , 0 0, 0 2.0 2.1 1 11.8 211,1 311)

irlot .... .. ..... ........ I:1,, l.1 1.. 11.0 1,( , I U , i i l 0.0l 0.,l I 0.,11 1.12 I ,M 14,2 30

hlliiibativo ................. 1,,1 1II.3 I 1.0 1,2 01,0 (.) 0,11 11.1) 0. ,1 01,10 7.1 1,41 l Il,i3 30K.. l.. ..................... .13,0i 22,1 11.10 34. t1,01 0,01 11, 0 111), ( 3,1) 8.1 12,2 21,4 30L.. ee.. ................... 20. 1 :11. B 1.11 :1.4 01,1) 0.0 0.11 0.1) 1,0 2.0 3,i 11,8 27.6 3(0N.alitok, '. . ............ 27,11, 211, 5 15, 1 4.7 0,0) i1.1) 1,1 .1 0 ).0 0. ,1 2.1 3.1) 11.8 27.0 31)Nltri............... ..... (6.8 21,7 0i,6 01.0) 01,0i 0,0 (1.1 0.0 0.l 01,4 4,7 11,2 21.7 31

p)lmiv ...... ...... ....... 1 , 1 :11.1 1,11i 111,2 ,11 0 ,() 1 0.11 0,) Isis 5, 1) 6.7 1,4 31,1 ti(1

,stritvi .............. 21,7 23,6 16,0 2.0 11, 0 i 1, I ().i i ,) 010 0,0 1 .1) " a 8,7 23.0 30IPhlhamy., .............. , ,I 22 .1 1 0 :1.11 10,41 1,i) 1,1) 11.11 0 ,( ) 0. 0 ,8 4.3 8.1 22.4 30

1rov ......... .. 12.11 .142 13. (.2 , 11 0i .01 0,01 0,0 0 0 2, 01 4.3 7.1 14,2 :11lStrftilv,. .............. 3,) 2(1,6 (2,.2 1.2 01.01 11.0 0. (,) 01, 1. 2 2.8 1. 20. 0)

'/liojO.. A..... ....... :1.6 .11 (7.3 6.14 II.7) 3 5,9 0 0 i. 1 0 ,11 (1,0 5, 1) 6.1 11.8 39.4 301

I.t lakA t-Hl.vlii. . 27,2 2 .3 2.1, 8 7.1 11.8 tl.1i l.t) 0 . . 1,0i 6,1) 1:3.8 25.2 32.3 30

, liri miad I llrm im....... 11.7 27.11 26.61 1.1m 1), 0 11,01 11.11 l!,1) 0 1,01 (1.41 7.6 21.31 27.11 31)I01 I 1)1:1 23 t(,1 11.1) .. ,0 0,0i 0.0 (0,01 7.1 12.2 18,8 2t,0 30

1,omuokV AtM............. 3 127. is A,i 87., t 4111.10 211.6 10.7 21i,1 14,1 47,2 619.3 112.6 (1),: (7iY h( l o . ....... ....... II 1 5, 6.8 1 11),i6 142.6 -11.3 3,2 0,0) 01,41 48.0 36.2 3911.4 103 :. 140,4 :it)

MI m usllitoro(l .. 28,4.11 :1l 2 1,1 .. 6 ),t) 2(,1 1,1 1) 4, ( 1,t i 4.o 0 102.4 210.6 1, 1I 30(rivmk 'mIlszAmok ...... .211.8 8,41 2S.7 9,81 .2 10.01 ,,11 0,0 2,11 .1.7 (0.11 20.11 28.7 30118pI&k, Nov, ',..........21.7 23,11 1M14 1 1 .0( 1,1) V,.i 4),) i 1.1 i ,.2 1.3 14.2 2:11,6 108t. .mokovwti'.......... . 11,6 21 1 -131.3) 28.11 3.6A 11.40 0.11 11,01 :1,1 1(5, (6.11 28.0 43,3 30TulWi+ tii~ky8t, MnHrin 17,3 221 17.7 I 1,11 0,0 0.0 0,0) .8 20,11 14,2 17.7 122.4 3l:0

ii..~ ~ ~n ata loiltt, hitkItlle4.+'~No bu~lt tltolicle1h (Cgi,oh olovitkl.

lt

, 84I

........................

E. Comments on principal sources 4, 5, and 6 provide background information on climatic

1. Evaluation conditions,

Some of the most recent climatological data for a num- 2. ist of sourcesber of stations in Czechoslovakia were summarized by 1, C7,K9CHOULOVAX4A, O TAKINI SPRAVA GouNSaz A KAm oa%&Fvx.the E~nvironmental Technical Applications Center, Air Atlas Podne Cwi~eskuslovenski Republikyj (Climatic AtlasWTcof the Czechoslovak Republic). Prague 1958.Weather Service. Tabular data by specified hours for 2, CUU;1IO5WVAXIA, VvoAvi. HYDomrrxonotca.Dt 15TAV.cloudiness, visibility, relative humidity, and various com- Podtwbf 6,oskoslouenski SocialltichW Republtky-Tabulkybinations of weather elements, and the wind-rose and (Cinate of the Czechoslovakian Socialistic lepublic-upper-air data were taken fropi these machine sum- Tables), Edited by Josef Zitek. Prague. 1061,marines. The data used for these summaries are for vari- 3, CKAT BRITAIN, Am MsrN'ry, MzrSooox.AL Oerzcu. ME.-

able periods of record, based on observations during the teorological Report on Bohemia, Morazua and Asria.M.O.M. 365/11. Aviation Meterologicul Report No. 11,

period 1952 through 1963 as well as on a few observa- London, 1943.tions from earlier years. These summarized data are 4, , Weather in the Mediterrmnean, Vol. 1, Second edi.considered reliable, ton, London, 190.

Data in nearly all other tables were taken from Source , KxENWDtw, W, G. The Climate of the Continent., 5t ed.

2, which contains summarized data for several hundred Oxford University Pres. London. 1961,stations. Source I provided background information and 6, Koxt, Nzto:.xus, "Schneeverhdltnisse der Hdhen Tara"

(Snow conditions in the High Tatras), Berichte do#was the primary source used in graphical presentations Deutschen Wetterdernates (Bulletin of the German Weatherof the areal distribution of various elements, Sources 3, Service). Vol. 8, no. 54, p, 132-133, Offenbach. 1959,

UNCLASSIFIED

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AAll- INC11- 9i6ldVA- |,90111)11 AND 1.0AWION |1ATI" 1omul- UiVA-1'1v1ON ANti #'rATION •'ION AN.) m+ 11 11 0hI* TION

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Wehlttrn i I ld 111t4:t a'rI 1.0owland (.uUnlli'sed):.'l!i nIn y . ............... . .... n 4 6 1 4 14 4 1 l rn o .. . . .... ............ .. 4 0 1 2 16 3 4 7 3 2

Ilv ........................ 411 54 11 24 117 IBrolI'utany ............ 49 09 16 42 71N ik e llu d +jo v le .............. 4 8 7 1 4 2 7 I , 2 5 0 BIu d itl *I t/l, 14i 1 In . ... ....... 47 2 19 I I 4 7 3

Chob ............. I.,.. .. 0 011 12 24 t 154 Ilurinbovo .............. I. 47 583 I 12 394

lIrada Krilov6 ............... 10 II 15 82 912 KoAlrc ... ..... . .. 48 42 21 t0 6071Jov iako ....................... 4931 41) 1,4113 1,0 on482 ................. ...... 48 20 19 40 14 .lWlbarou ............. . 1) 40 In 04 1,319 Mloioky .....................- 4m 26 17 01 622|,ltow yAI .. -. .. .. .. .. ....... 40 A'1 ll 1 18 1, 139t Nitrla .......................... 4H4 It 1 1 18 O 476

M arlAnm k', , kiit6 ...... ... ...... 41) 69 12j

42 1 l U()O Olim n ......................... 49 8t6 17 84 8U92

Mhtna Albreolitlut, ............... ft) Oil 17 33 1.888 OK 'livla . . ............... 49 8t 18 I I06hIflhllovk- ............. ........ 80 33 13 l 2.7311 Il+,Atmy .................. 4H 37 17 al 8832P'Anl4lf ......................... 4 1 1 I1I 3,98O 2 Ilthruv ... .... .... ... 41 27 17 27 7064 6 ............. I.I...... I.. 40 411 1 21 1,169 Str~iliot , ... ... .. ........... 48 54 17 20 574

l'i,1i/l)obtan, .................. 49 40 13 17 I,.194 Vahorod** .... ... ...... 48 811 22 1" 387

I'ohoff na AuuIl04AV ............... 411 36 14 12 2.94n ............ .......... 48 82 toI 03 1.004......................... O 114 17 14 4,195

Iiguo ...... .................. 50 04 I.I 26 8113 IFamLOell Moull4iltB*

l~rlgKtl/Rt1A ¥1 .................. i) O11 14 I? 1,227 limAnkA i ,tIavnica ............... 44 28 1N 84 1,919I'fllmhLv .................... 41) 36 1 46 .7311 lreaho Dad llronom ........... 48 49 19 37 1,660

Itolmitill Mpod ''fumAllom ........ 41) 36 I 2 I,'l 7 lAl 1t22 ~ ki ..................... 49 28 Is 01 1,273

RIIALHl Ia nD .dulmlel ............ 80 ON 11 23 I 2 KIII l VUwy Wlerah+l' ........... 410 14 t 8 ,82

..................... M 44 1I5 44 A,2147 lIoinlki ALLI ......... ....... 49 12 20 13 8,68T4.................... .... 40 24 14 40 1.447 Iy*i Ilora .......... .......... 40 33 1II 27 4,3]1

Teoll ........................... 41) II Io 27 1.729 M 'ildg luborce .................. 49 11 21 84 1,087

To lle .............. ......... 811 30 13 48 781 Ora*k$ lodmiimok ............ 49 1 1o 20 1 61OVjlrt , ........................ i 29t 13 02 2,A1115 4111 .......................... 484 38 to 0il ,Vtkv .................... 491 47 17 45 1.849 lIlAakil, NovA Vga ....... 48 87 20 34 1,412

Eli',.xrti Lowladlsi Hthr Hmoknvgo ...... ,.,, 49 08 20 13 3,340I4r4aigh1 ............... . 4H10 17 07 417) 'rt lanke Topllum ....... 48 88 18 10 928IlrtIilMIa'ihi/lv~lokil.l I)!l .. 48 1 17 13 48l 'l'ui8linaky HvkLt I.rLIn...,.,,, 49 04 I8 86 1,247

* ('twrcllnat, itlv I o Ili m of wilier nuLltonm inI do 'lot 1l,1iMIArIilY rrelpund LI tholio for poputlaed plaoel'i NalUu. ou o ldi 1Cwhalohvikil,

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CZECHOSLOVAKIASTATION LOCATIONS

* METEOROLOGICAL. STATION

Locations are shown only for stations forwhich dclat ar presen ted in text or fables.

DISCUSSION REGION BOUNDARY

I WESTERN HILLS AND PLAINS

II EASTERN LOWLANDS

III EASTERN MOUNTAINSMeters Feet

800 2,625

400 1,312W 7o

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Declassification Instructions For This

National Intelligence Survey Volume

Country: (Czechoslovakia

Report Title: Weather and Climate

NIS Series Number: [ 18Chapter Number: | 2

Section Number: I 23

Publication Date: |01-Jul-66Total Pages: | 104

THIS VOLUME IN ITS ENTIRETY HAS BEEN

DECLASSIFIED AND APPROVED FOR RELEASE

TO THE PUBLIC

DECLASSIFIED

Reviewed by CIA Under E.O. 12958 Sec. 3.4

Date: 1 l-Jul-98 CIA DOC ID: NIS 79 - 19

APPROVED FOR RELEASE