property of lear siegler. t l o elo 1 action: the student will interpret the information contained...
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Property of Lear Siegler
Property of Lear Siegler
ELO 1Action: The student will interpret the
information contained in a surface analysis chart.
Condition: Given pertinent information about surface analysis charts.
Standard: IAW AC 00-45F
SURFACE ANALYSIS CHART
PURPOSE.... TO PROVIDE THE PILOT WITH A GENERAL PICTURE OF THE WEATHER AT A SPECIFIC TIME Property of Lear Siegler
Chart is issued every 3 hours
Information taken from METAR reports
CONDITIONS DETERMINED FROM CHART
1. SURFACE WINDS
2. FRONTAL SYSTEMS
3. PRESSURE SYSTEMS
4. SKY COVERAGE
5. TEMPERATURE AND DEW POINT
6. PRECIPITATION AND OBSCURATIONS
7. STATION PRESSURE
8. PRESSURE TREND (3 Hour)
Property of Lear Siegler
CLEAR
FEW(1-2 octas)
SCATTERED(3-4 octas)
BROKEN(5-7 octas)
OVERCAST(8 octas)
OBSCURED
SKY COVERMISSING
REF: AC 00-45F
WIND DIRECTION
Property of Lear Siegler
CALM
05 KNOTS
10 KNOTS
15 KNOTS
20 KNOTS
50 KNOTS
65 KNOTS
WINDSPEED
Property of Lear Siegler
15
13,
6
315
TEMPERATURE
Property of Lear Siegler
15
13 6
315,
WEATHER &OBSCURATION
Property of Lear Siegler
RAIN
Property of Lear Siegler
RAIN
DRIZZLE
SNOW
ICE PELLETS
HAIL SHOWER
RAIN SHOWER
SNOW SHOWER
Property of Lear Siegler
T/STORM
FREEZINGRAIN
FREEZINGDRIZZLE
FOG
SMOKE
HAZEProperty of Lear Siegler
15
13,
6
315
DEWPOINTProperty of Lear Siegler
15
13,
6
315
STATION PRESSURE
Property of Lear Siegler
1. STATION PRESSURE CORRECTED TO SEA LEVEL2. SHOWN IN HECTOPASCALS / MILLIBARS
1013.2 = 132
986.6 = 866
Property of Lear Siegler
15
13,
6
315
PRESSURE TENDENCY (3 HOUR)
Property of Lear Siegler
1031.5
- .6
1030.9
3 hours ago
15
13,
8
101
CURRENT STATION PRESSURE = 1010.1
PRESSURE TREND = INCREASING
PRESSURE 3 HOURS AGO 1010.1 - 0.8
= 1009.3Property of Lear Siegler
15
13,
12
100
CURRENT STATION PRESSURE =
PRESSURE TREND =
PRESSURE 3 HOURS AGO
1010.0
DECREASING
1010.0 + 1.2= 1011.2
Property of Lear Siegler
CURRENT STATION PRESSURE =
PRESSURE TREND =
PRESSURE 3 HOURS AGO
1016.0
DECREASE THENSTEADY
1016.0 +2.4=1018.4
15
13,
24
160
Property of Lear Siegler
CURRENT STATION PRESSURE =
PRESSURE TREND =
PRESSURE 3 HOURS AGO
1014.2
STEADY
1014.2
15
13,
0
142
Property of Lear Siegler
CURRENT STATION PRESSURE =
PRESSURE TREND =
PRESSURE 3 HOURS AGO
1014.2
INCREASE THENDECREASE
1014.2
15
13,
0
142
Property of Lear Siegler
CURRENT STATION PRESSURE =
PRESSURE TREND =
PRESSURE 3 HOURS AGO
1014.2
DECREASE THENINCREASE
1014.2
15
13,
0
142
Property of Lear Siegler
L
H
IND TRUE
H L
L H
ELO 2Action: The student will interpret data
contained in a weather depiction chart.
Condition: Given pertinent information about weather depiction charts.
Standard: IAW AC 00-45F
WEATHER DEPICTION CHART
Property of Lear Siegler
WEATHER DEPICTION CHART
PURPOSE - To portray areas of IFR, VFR and MVFR
Property of Lear Siegler
FREQUENCY - Issued every 3 hours
CLEAR
FEW(1-2 octas)
SCATTERED(3-4 octas)
BROKEN(5-7 octas)
OVERCAST(8 octas)
OBSCURED
SKY COVERMISSING OR
PARTIALOBSCURATION
REF: AC 00-45F
BREAKS IN OVERCAST
Sky cover symbols shown on the weather depiction chart are the worst sky conditions (summation method) for that station.
The altitude below the station will show the
ceiling.
VISIBILITY
ONLY SHOWN WHEN 5 SM OR LESS
4 ‚
VISIBILITY
NO VISIBILITY SHOWN MEANS VISIBILITY IS GREATER THAN 5 SM
Property of Lear Siegler
WEATHER AND OBSTRUCTIONS
4 ‚
Property of Lear Siegler
CLOUD BASE
4 ‚
Property of Lear Siegler
No altitude will be given if FEW or SCT.
If BKN or OVC, height is ceiling.
CLOUD BASE
4
5
‚
Property of Lear Siegler
No altitude will be given if FEW or SCT.
If BKN or OVC, height is ceiling.
SCT010 BKN020 OVC030
Property of Lear Siegler
W.D. S.A.
020
Using the summation
method
FEW010 FEW020 SCT030Property of Lear Siegler
W.D. S.A.
VFR
MVFR
IFR
CEILING AND VISIBILITY GREATER THAN 3000 -- 5
CEILING AND / OR VISIBILITY LESS THAN 1000 -- 3
AREAS DEPICTED
3000 -- 5To
1000 -- 3
Property of Lear Siegler
SHADED AREAS … IFR WITH CIG LESS THAN1000 FT AND/OR VSBY LESS THAN 3 MI
CONTOURED WITHOUT SHADING…MVFR AREAS WITH CIG GREATER THAN OR EQUAL TO 1000 TO LESS THAN OR EQUAL TO 3000 FT AND/OR VSBY GREATER THAN OR EQUAL TO 3 TO LESS THAN OR EQUAL TO 5 MI
NO CONTOURS… VFR AREAS WITH CIG GREATER THAN 3000 FT AND VSBY GREATER THAN 5 MI
Property of Lear Siegler
Property of Lear Siegler
15
13 6
315
METAR KATL 151450Z 28025KT 4SM DZFG
SCT014 BKN120 OVC300 15/13
A3049 RMK SLP315
,120
4
W.D. S.A.
,
Property of Lear Siegler
ELO 3Action: The student will interpret the
information contained on a radar summary chart.
Condition: Given pertinent information about radar summary charts.
Standard: IAW AC 00-45F
RADAR SUMMARY
Radar Summary Chart
Gives a three-dimensional viewpoint of clouds and
precipitation
Issued every hour
Property of Lear Siegler
CONTOURS ATLEVELS
1, 3, AND 5.
1
3
5
Light to Moderate
Heavy to Very Heavy
Intense to Extreme
450
TOPS OF ECHO
Property of Lear Siegler
Maximum echo top does not
equal maximum cloud top
30
Area/Line Movement
CELL MOVEMENT
Property of Lear Siegler
Symbol MeaningR RainRW Rain ShowerS SnowSW Snow ShowerT ThunderstormNE No Echoes
Property of Lear Siegler
NA Not Available
OM Out for Maintenance
Property of Lear Siegler
Line of Echoes – Solid (SLD)
WS999
WT999
HOOK
Severe Thunderstorm
Tornado Watch
Hook Echo
Severe weather watch area
FM 1-230 Referencesfor today
• Surface Analysis Chart 18-4
• Weather Depiction Chart 18-5
• Radar Summary 18-8
FM 1-230 Referencesfor tomorrow…
• TAF App B-11
• Winds Aloft Chart 18-10
That’s All Folks!
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