Tuba (cloud)

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Clouds : classification
Genera species Subspecies

Special forms

Tuba ( Latin for "tube, wind instrument in ancient Rome with elongated tube and narrow bell ") denotes, according to WMO , a column or an inverted cone in a cloud that grows out of the cloud base . This makes a strong vortex movement visible (see Trombe ). This special form occurs with Cumulonimbus and less frequently with Cumulus .

Delimitation: A Tuba without ground contact is called funnel cloud ( Funnelcloud called).

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