Urdenbach (Nordrhein-Westfalen)

 21.08.2011 / Stärke (n. bek.) Verdacht
Zeitpunkt: gegen 16:15 Uhr MESZ. Beobachtung einer Funnelcloud: "vertical development: 20% of the distance cloud-ground. Well developed funnel below the base of an intensifying shower. Above the sharp funnel, intense convection was observable. The shower was followed by a supercell at the same evening." (Quelle: ESWD)