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 Status:Ongoing analysis Material from: Linus

 

 


1. Impact

On 9 November Stockholm, Sweden was hit by a severe blizzard. The city got around 40 cm of snow. The snow accumulation over 2 days was the largest since at least 1950 for Stockholm (all winter months included).

2. Description of the event

The plots below show the analyses of z500 and t850 for 6 November to 10 November.

The plots below shows 12-hour forecasts of MSLP and precipitation from the same period as the plots above.



The plots below shows the evolution of the snow depth in Sweden from 8 November 06z to 10 November 06z.


The plot below shows an example of radar image during the snowfall (9 Nov 10z)


3. Predictability

  

3.1 Data assimilation

 

3.2 HRES


3.3 ENS


c

EFI for snowfall 9 November



3.4 Monthly forecasts


3.5 Comparison with other centres


4. Experience from general performance/other cases

 

5. Good and bad aspects of the forecasts for the event


6. Additional material

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