Storm Forecast Valid: Mon 09 Jun 2014 06:00 to Tue 10 Jun 2014 06:00 UTC Issued: Sun 08 Jun 2014 22:31 Forecaster: PUCIK
A level 3 was issued for NW France and BENELUX for very large hail, damaging wind gusts, tornadoes and excessive precipitation.
A level 2 was issued for much of France and NW Germany mainly for very large hail and damaging wind gusts.
A level 1 was issued for England mainly for severe wind gusts and large hail.
A level 1 was issued for E Germany and Poland mainly for large hail and severe wind gusts.
A level 1 was issued for parts of Russia and Ukraine mainly for large hail and severe wind gusts.
In between of the deep low over the Atlantic and the ridge over Central Europe, strong southerly to southwesterly flow will advect hot airmass characterised by steep mid-level lapse rates from N Africa towards France, Germany and then around the ridge towards Poland. Potentially dangerous situation will evolve over France, BENELUX and NW Germany just ahead of the diffuse, wavy frontal boundary that will remain quasistationary close to French coastline during the most of the day. Another low will slowly dig SE-wards across NW Russia. Moderate to strong NW-ly flow is simulated at its southwestern flank. With prevailing low geopotentials over much of Eastern Europe, so scattered DMC is expected also there, albeit severe threat will be smaller than in case of France / BENELUX.