Status:Ongoing analysis Material from: Fernando, Linus

Discussed in the following Daily reports:

http://intra.ecmwf.int/daily/d/dreport/2015/04/01/sc/

Picture

1. Impact

On the 31 March 2015 a strong windstorm hit north-western Europe.

http://en.wikipedia.org/wiki/Cyclone_Niklas

http://www.bbc.co.uk/news/world-europe-32138213

2. Description of the event

3. Predictability

3.1 Data assimilation

3.2 HRES

3.3 ENS

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