1. Danish Meteorological Institute Copenhagen Denmark
2. Met Office Exeter UK
3. University of Reading Reading UK
4. Météo‐France Paris France
5. Estonian Environment Agency Tallinn Estonia
6. Royal Netherlands Meteorological Institute De Bilt the Netherlands
7. Deutsche Wetterdienst Offenbach Germany
8. European Centre for Medium‐Range Weather Forecasts Reading UK
9. Met Èireann Dublin Ireland
10. Finnish Meteorological Institute Helsinki Finland
11. University of Copenhagen Niels Bohr Institute Copenhagen Denmark
12. Department of Atmospheric Sciences University of Washington Seattle Washington