mardi 9 septembre 2014

European Storm Forecast Experiment

Storm Forecast
Storm Forecast
Valid: Tue 09 Sep 2014 06:00 to Wed 10 Sep 2014 06:00 UTC
Issued: Tue 09 Sep 2014 08:05
Forecaster: PUCIK
A level 2 was issued for NE Spain mainly for large hail and severe wind gusts.

A level 1 was issued for E Spain mainly for large hail and severe wind gusts.

A level 1 was issued for S France, Alpine region, N Italy and SE Austria mainly for excessive precipitation and large hail.

A level 1 was issued for NE Poland mainly for severe wind gusts and marginally large hail.

SYNOPSIS

A large ridge is forecast to stretch from Iberia towards Ireland as of 12 UTC, slowly drifting eastwards. To the east, a cyclonic vortex shifts slowly to the southeast, experiencing northerly prevailing flow on the forward flank of the ridge. Several, more subtle regions of lower geopotentials are revealed by the satellite lops - one, rather broad, situated over southeastern Europe and a small cut-off which will move from S France towards NE Spain.

Most of the DMC activity will be concentrated on the region just ahead of the weak cold frontal boundary, with drier and cooler airmass advecting in its wake. Scattered thunderstorms are expected in the belt spanning from E Spain towards E Poland.

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