Gruss Willi

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Quelle: estofex.org... SE-Germany, parts of Austria and E-Czech Republic ...
Current scenario was more or less an outlier yesterday but more and more model runs now confirm this trend, so confidence increased adequately for upgrading to a 50-% thunderstorm area. GFS/WRF and BOLAM are the more aggressive ones, indicating rapid development along and south of a cold front over SE-Germany, but also along the Alps itself. Latest synop data reveals rapid BL modification with dewpoints now at or above 10 °C beneath somewhat steeper lapse rates. This constellation often assists in thunderstorm development during the early afternoon hours along the Austria/Switzerland border with a movement to the northeast. Shear is low to modest with 10-15 m/s throughout the lowest 6km with a negligible directional shear component. Therefore, upscale growth into one or more clusters is forecast over SE-Germany, moving east/northeastwards thereafter. The main risk will be strong wind gusts, marginal hail and locally heavy rainfall amounts. Similar events in the past proved to produce a good chance of better organized storms over extreme SE-Germany despite marginal shear and weak forcing. Given abundant CAPE support for this scenario, we went ahead and introduced a level 1 for large hail, despite the more isolated nature of this hazard.
Aktuelle 10.00 UTC Messwerte:Willi hat geschrieben:Das Sat-Bild zeigt vor der erwarteten Front +- schöne Aufhellungen, u.a. über dem Genferseegebiet. Dieses dürfte sich weiter Richtung NE bewegen und so nochmals für etwas Sonne und damit verbundene Aufheizung sorgen. Könnte das nicht doch für das eine oder andere stärkere Gewitter gut sein?...
=Ich glaube Christian Matthys und Cyrill
haben es schon mal erwähnt irgendwo
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