Waarschuwing voor zware windstoten en overmatige regenval.
A level 1 was issued for southern Italy and northern Tunisia mainly for excessive convective rainfall and lesser extent for marginally large hail and strong wind gusts.
A level 1 was issued for northern Germany, parts of Netherland, Denmark and southern Sweden mainly for strong wind gusts and excessive rainfall.
SYNOPSIS
The main large and rather intense upper trough moves from NE Atlantic across the north Sea into Scandinavia. Accompanied by this trough, a frontal system affects southern Scandinavia and extends into northern Germany. The upper low over Thyrrenian sea continues moving SSE into the southern Mediterranean by Wednesday morning.
DISCUSSION
... North Sea across southern Scandinavia into northern Germany ...
An intense frontal system enters North Sea during the daytime hours and quite rapidly shifts southeastwards. Models simulate weak instability to build up along/just ahead of the cold front. Accompanied by this trough, strong mid-level jet provides strong deep-layer shear which should support some organized storms. Expect some organized convection mainly along the cold front where convective lines will be possible with the strong wind gusts as the main threat. A level 1 was issued over the areas where this threat seem to be maximized. Behind the front, CAA overspread rather warm SST of North Sea and yields some LL instability and steeper lapse rates. There, as well as around Denmark and northern Germany coastal areas, a couple of funnel clouds/spout type tornadoes cannot be excluded.
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