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funnel cloud

Funnel cloud, a tornado that isn't on the ground. Near El Reno, Oklahoma July 1973. A funnel cloud is a funnel-shaped cloud of condensed water droplets, associated with a rotating column of wind and extending from the base of a cloud (usually a cumulonimbus or towering cumulus cloud) but not reaching the ground or a water surface. A funnel cloud is usually visible as a cone-shaped or needle like protuberance from the main cloud base. Funnel clouds form most frequently in association with supercell thunderstorms. If a funnel cloud touches the ground it becomes a tornado. Most tornadoes begin as funnel clouds, but many funnel clouds do not make ground contact and so do not become tornadoes.
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Titre:
funnel cloud
Légende: Voir la traduction automatique
Funnel cloud, a tornado that isn't on the ground. Near El Reno, Oklahoma July 1973. A funnel cloud is a funnel-shaped cloud of condensed water droplets, associated with a rotating column of wind and extending from the base of a cloud (usually a cumulonimbus or towering cumulus cloud) but not reaching the ground or a water surface. A funnel cloud is usually visible as a cone-shaped or needle like protuberance from the main cloud base. Funnel clouds form most frequently in association with supercell thunderstorms. If a funnel cloud touches the ground it becomes a tornado. Most tornadoes begin as funnel clouds, but many funnel clouds do not make ground contact and so do not become tornadoes.
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Album / NOAA/Science Source
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Taille de l'image:
1184 x 1808 px | 6.1 MB
Taille d'impression:
10.0 x 15.3 cm | 3.9 x 6.0 in (300 dpi)
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