A Roll Cloud Over Missouri

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zorg.ch #83489 by [z]Barbara Harris @ 18.01.2006 00:00 - nach oben - A Roll Cloud Over Missouri Explanation: What kind of cloud is this? A roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud. When this happens uniformly along an extended front, a roll cloud may form. Roll clouds may actually have air circulating along the long horizontal axis of the cloud. A roll cloud is not thought to be able to morph into a tornado. Unlike a similar shelf cloud, a roll cloud is completely detached from their parent cumulonimbus cloud. Pictured above, a roll cloud extends far into the distance in the summer of 2005 above Albany, Missouri, USA. Credit & Copyright zorg.ch #83494 by hans @ 18.01.2006 07:38 - nach oben - independence day, doch wo blibt dä will smith? zorg.ch #83499 by Cédi @ 18.01.2006 08:50 - nach oben - het de falsch chnopf druckt, etz isch sin charre wiss worde und hetten igsperrt. isch gad am flueche und alli andere chnöpf drucke.