Storm Forecast Valid: Fri 12 Sep 2014 06:00 to Sat 13 Sep 2014 06:00 UTC Issued: Thu 11 Sep 2014 16:59 Forecaster: TUSCHY
A level 1 was issued for parts of Portugal and NW Spain mainly for an isolated large hail event and excessive rain.
A level 1 was issued for the N-Adriatic Sea and surroundings mainly for excessive rain and an isolated large hail and tornado event.
A level 1 was issued for parts of the Czech Republic and SW Poland mainly for an isolated tornado threat.
Blocking pattern (resembling an omgea structure) persists over most of Europe. A cold-core low over the W-Alps drifts south and over the N-Adriatic Sea until the end of the day. An extensive low pressure area is situated over the E-Atlantic and steers an increasingly moist air mass towards W-Spain and Portugal. In between, ridging keeps the weather calm regarding organized DMC. Over Scandinavia, calm weather persists beneath a broad high pressure area.