Arc Cloud Over Southern Germany
February 20, 2007
The image above show a panoramic view of an approaching arc cloud (also called shelf cloud or arcus). These impressive looking accessory clouds are on occasion observed near the base of cumulonimbus cells -- along the leading edge of a thunderstorm outflow boundary. This one was associated with a particularly nasty storm that hit southern Germany on June 26, 2006 and preceded the arrival of strong wind gusts and heavy rains. Picture taken in Garching, near Munich (Germany).