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 Status:Ongoing analysis Material from: Ivan, Mohamed, Linus

 

Discussed in the following Daily reports:

http://intra.ecmwf.int/daily/d/dreport/2015/03/03/sc/

http://intra.ecmwf.int/daily/d/dreport/2015/03/04/sc/

http://intra.ecmwf.int/daily/d/dreport/2015/03/05/sc/

http://intra.ecmwf.int/daily/d/dreport/2015/03/06/sc/


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1. Impact

 

 

 

Excerpt

Around the 6 March severe weather affected south-eastern Europe including heavy snowfall over Bulgaria.

 

 

 

Winter scenes of deep snow covering the town of Troyan, Northern Bulgaria (red marker on the map) where the snow cover reached about 50 cm. The most affected area in Southern Bulgaria is denoted with the red oval; in some parts in the mountain the new snow cover was more than 1 m in height. Heavy wet snow damaged power lines, closed roads and blocked the access to many parts of the region. A sate of emergency was declared.

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Before the event hit Bulgaria, Italy experienced strong winds. The plot below shows the time-series of observations at Florence Airport and the corresponding forecast.

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The next figure shows the verification of 24-hour maximum winds gusts for 5 March.

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Later, the system caused heavy precipitation on the Balkans as seen in the plot below.

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3. Predictability

  

3.1 Data assimilation

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