Status:Ongoing analysis Material from: Ervin, Linus

Discussed in the following Daily reports:

http://intra.ecmwf.int/daily/d/dreport/2015/01/26/sc/

Picture

1. Impact

2. Description of the event

3. Predictability

3.1 Data assimilation

The plot below shows the MSLP increment for 27 Jan 18z.

3.2 HRES

3.3 ENS

The plot below shows the CDF for 24-hour snowfall for NYC for 27 January.

The plot below shows the CDF for 24-hour snowfall for Boston for 27 January.

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