monthly bulletin for serbia june 2019period ranged from 1,2ºС in zajecar to 3,2ºС in belgrade...
TRANSCRIPT
MONTHLY BULLETIN FOR SERBIA
JUNE 2019
Belgrade, the 5th
of June 2019
Division for Climate Monitoring and Climate Forecast Department of National Center for Climate Change, Climate Model Development and Disaster
Risk Assessment web: http://www.hidmet.gov.rs
mail: [email protected]
Republic Hydrometeorological Service of Serbia Kneza Viseslava 66
11000 Belgrade Republic of Serbia
Warmest June for Serbia based on the minimum air
temperature
3rd
warmest June for Serbia based on the mean air temperature
6th
wettest June for Sombor
Record-breaking precipitation sums for Pozega
Heat waves on Zlatibor, lasting for 5 days
Figure 1. Mean monhtly air temperature and precipitation sums and accompanying terciles for Serbia
relative to the 1981-2010 base period
Figure 2. Mean monhtly minimum and maximum air temperature and their accompanying terciles for
Serbia relative to the 1981-2010 base period
Air temperature
Mean monthly air temperature
June 2019 ranks as the 3rd
warmest for Serbia in a 1951-2019 period of record (Figure 1),
behind the June of 2003 and 2012, as well as the 2nd
warmest for Palic, Sombor, Kikinda,
Sremska Mitrovica, Veliko Gradiste, Sjenica and Kopaonik (Figure 3 and 4).
Figure 3. Rank of the warmest and coldest Junes for the 1951-2019 period
Figure 4. Warmest June in Kikinda for 1948-2019. base period
Slika 5. Warmest June in Sjenica for 1946-2019. base period
Mean air temperature in June ranged from 13,6ºС at Kopaonik to 24,2ºС in Belgrade (Figure
6).
Departure of the mean monthly air temperature from the normal1 for the 1981-2010 base
period ranged from 1,2ºС in Zajecar to 3,2ºС in Belgrade (Figure 7).
Based on the percentile method, mean air temperature in June was in the following categories:
very warm in most of the country, extremely warm in certain parts of northern, western,
southwestern and central Serbia, and warm category in Zajecar (Figure 8).
Mean daily air temperature in Belgrade, based on the percentile method, was in the normal
category at the beginning and end of June, elsewhere it was in the warm and very warm
category (Figure 9).
1 Term normal refers to climatological standard normal, that is, the average value of a particular climate element,
calculated for the period from January 1, 1981 to December 31, 2010
Figure 6. Spatial distribution of mean monthly air
temperature (ºC) during June 2019
Figure 7. Spatial distribution of mean monthly air
temperature anomaly (ºC) during June 2019
Figure 8. Spatial distribution of the mean monthly air
temperature using percentile method during June 2019
Figure 9. Monthly course of the mean daily air temperature in Belgrade during June 2019
Maximum air temperature
Mean maximum air temperature in June ranged from 17,6ºС at Kopaonik to 29,5ºС in
Leskovac. Belgrade observed mean maximum air temperature of 29,1ºС.
Based on the percentile method, mean maximum monthly air temperature was in the
following categories: very warm in most of Serbia, extremely warm on Zlatibor and Pozega
and warm category in Nis, Zajecar, Crni Vrh and Kragujevac.
The maximum daily air temperature of 34,8ºС was recorded in Loznica on June 13. Belgrade
observed maximum daily air temperature of 34,4ºС on June 13.
Summer days2 were recorded in most of the country, apart from Kopaonik. In the lowland,
number of summer days ranged from 24 days in Zajecar and Dimitrovgrad to 27 days in
Loznica, and in the hilly-mountainous regions from 1 day at Crni Vrh to 15 days at Zlatibor
and Sjenica, which is 4 to 12 days above the June average.
Tropical days3 were recorded in most of Serbia apart from Crni Vrh and Kopaonik. The
number of tropical days ranged from 9 days in Dimitrovgrad and Kursumlija to 18 days in
Belgrade, Cuprija and Negotin. Zlatibor and Sjenica observed one tropical day. The recorded
number of tropical days was 1 to 11 days above the June average.
2 Summer day refers to a day with maximum air temperature 25°C and above
3 Tropical day refers to a day with maximum air temperature 30°C and above
In June, one heat wave4 was recorded with the duration of 5 days at MMS Zlatibor (with the
onset on 12 June and lasting until June 17).
Minimum air temperature Mean minimum air temperature in June ranged from 9,7ºС at Kopaonik to 19,1ºС in
Belgrade.
Based on the percentile method, mean minimum monthly air temperature was in the
extremely warm domain in the entire country.
The lowest minimum daily air temperature of 4,0ºС was recorded at Kopaonik on June 1. The
same day, Belgrade observed the lowest daily air temperature of 13,9ºС.
In June, tropical nights5 were recorded in northern Serbia, some parts of central, western,
eastern and sountern Serbia. Zrenjanin observed 5 tropical nights, Belgrade recorded total of
13 tropical nights, elsewhere there were 4 tropical nights.
Figure 10 depicts the monthly course of the mean, maximum and minimum daily air
temperature for Belgrade during June.
Figure 10. Monthly course of mean, maximum and minimum daily air temperature during June for Belgrade
4 Heat wave, according to the percentile method, is a period during which maximum daily air temperature is in
the warm and very warm categories for 5 days or longer
5 Tropical night refers to a day with minimum daily air temperature 20°C and above
PRECIPITATION
June 2019 ranks as the 6th
wettest for MMS Sombor for the 1931-2019 period with the
precipitation total of 155,4 mm (Figure 11). The highest June precipitation sum in Sombor
was recorded in 2010, amounting to 240,0 mm.
Figure 11. The largest June precipitation in Sombor for 1931-2019. base period
Precipitation totals in June ranged from 29,9 mm in Nis to 167,5 mm at Kopaonik (Figure
12). Belgrade observed precipitation sum of 138,7 mm.
Precipitation sums relative to the normal for the 1981-2010 base period ranged from 52% in
Nis to 194% in Leskovac (Figure 13).
Based on the percentile method, precipitation sums were in the following categories: rainy
and normal in most of the country, extremely rainy in Kragujevac, very rainy in Sombor,
Kraljevo, Leksovac and Zajecar and dry in Novi Sad (Figure 14).
Figure 12. Spatial distribution of the monthly
precipitation sums (mm)
Figure 13. Spatial distribution of the monthly
precipitation sums in the percentages of normal for the
1981–2010 base period
Figure 14. Monthly precipitation sums according to
the percentile method
In June, the highest daily precipitation sum of 84,2 mm was recorded in Kraljevo on June 3.
On June 4, Pozega received precipitation sum of 64,4 mm thereby breaking the previous
record for Pozega of 61.9 mm set on June 2017. In Belgrade, the maximum daily
precipitation sum of 41,7 mm was observed on June 24.
On June 23, Belgrade observed intensive convective cloudiness followed by heavy
precipitation in the afternoon and evening hours that in a short period of time caused floods in
Palila, and Novi Beograd. The highest daily amount of rainfall is registered in the rain gauge
fighters, and was 112.4mm. Charts show precipitation sums from the automatic rain gauge on
the territory of Belgrade for June 24 (precipitation from 6 UTC on June 23 to 6 UTC on June
24, 2019).
Chart 2:
Slika 15. Spacial distribution precipitation sums in Belgrade (precipitation from 6 UTC on June 23 to 6 UTC on
June 24, 2019) with all available stations
automatski
kišomer
Bežanijska
KosaBarajevo Borča Makiš
Petlovo
BrdoPionir Košutnjak Slanci Sremčica
Zeleno
BrdoZemun
Zemun
Polje
24/06/2019 65.0 4.4 112.4 49.0 9.2 2.2 12.8 52.6 4.8 12.6 64.4 34.6
Number of days with precipitation in June ranged from 10 days in Novi Sad, Sremska
Mitrovica, Smederevska Palanka and Nis to 16 days on Palic and Dimitrovgrad, and on the
mountains from 12 days on Zlatibor to 16 days at Crni Vrh, which is 1 to 4 days above the
June average for most of the country (Figure 20). Belgrade recorded 14 days with
precipitation.
In most of Serbia, there were 1 to 2 days with precipitation totals exceeding 20 mm, Sombor
observed total of 4 days and Loznica 3 days (Figure 16).
Figure 18. Day with precipitation totals exceeding 20 mm
Figures 22, 23 and 24 show daily and cumulative precipitations sums with averaged 1981-
2010 normals for June for Belgrade, Kragujevac and Kopaonik.
Figure 17. Number of days with precipitation
in June
Figure 19. Daily and cumulative precipitation in Belgrade
Figure 20. Daily and cumulative precipitation in Kragujevac
Figure 21. Daily and cumulative precipitation at Kopaonic
Cloud cover, bright and cloudy days Mean June cloud cover in Serbia ranged from 3/10 in Zajecar to 5/10 in Sremska Mitrovica.
The observed cloud cover was below the June average with the departure of 2/10. Figures 22
and 23 show the average daily cloud cover in June for Sremska Mitrovica and Zajecar.
Figure 22. Mean daily cloud cover in Zajecar
Figure 23. Mean daily cloud cover in Sremska Mitrovica
In June, number of bright days in lowland ranged from 2 days in Zajecar to 4 days in Sremska
Mitrovica, and on the mountains up to 8 bright days were observed. In most of the country,
the recorded number of bright days was 1 to 8 days above the June average.
In June, cloudy days were recorded in most of Serbia apart from Veliko Gradiste. Number of
cloudy days in June ranged from 1 in Banatski Karlovac to 7 days at Crni Vrh. Number of
cloudy days was 1 to 5 days below the June average in most of the country.
SUNSHINE DURATION (INSOLATION)
Sunshine duration in June ranged from 226,7 hours in Zajecar to 320,4 hours in Novi Sad
(Figure 24).
Sunshine duration in June ranged from 89% in Zajecar to 140 % in Pozega relative to the
normal for the 1981-2010 base period (Figure 25).
Figure 24. Insolation, expressed in hours during June
2019
Figure 25. Insolation expressed in the percentages of
normal during June 2019
*Note: Climate analysis of the meteorological elements was performed based on the
preliminary data obtained from 28 main meteorological stations.
APPENDIX
Overview of the synoptic situation*
Upper air cold cyclone, occasional establishment of the ridge along with the significant
impact of shallow waves in the weakgradient cyclone field, cold then warm conditions, local
extremes in terms of precipitation.
Most of the first decade was characterized by cold and rainy weather which was maintained
by influential upper air cyclone across the Balkan and Appeninian peninsula as well as
southern Europe.
At the end of the first decade, upper air cyclone transferred and retreated in favour of cold air
emanating from southwest causing temperature rise, followed by partial stabilization of
weather conditions with less rain and showers in most of the country. Warm and relatively dry
weather remained until the middle of the second decade.
As of the middle of a month, weakgradient cyclone field and accompanying shallow waves
caused labilization of the warm air mass, producing unsettled weather, warm and humid with
heavy showers and thunderstorms locally.
Settled and very warm weather marked the middle of a third decade. The advection of warm
weather emanating from northern Africa took place across the southwestern Africa, spreading
to western Europe and causing unusual heat in these areas. Across the Balkan peninsula ridge
was gradually established, followed by advection of a warm air from north of the continent.
End of the month was characterized by passage of the cold front from northewestern Europe
within the spatial cyclone and across the central parts of the continent, at first in north, then
elsewhere. Thundery showers were predominantly observed in northern and central parts of
the country, whereas most places recorded temperature drop.
After the passage of atmospheric front, anticyclone and settled weather were established on
the ground, with predominantly sunny and moderately warm conditions until the end of June.
* National Center for Hydrometeorological System