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'Cumulus congestus clouds' (also 'towering cumulus' ('TCu')) are characteristic of unstable areas of the atmosphere which are undergoing convection. They are often characterized by sharp outlines and great vertical development. Because cumulus congestus is produced by strong updrafts, it is typically taller than it is wide, and cloud tops can reach 5,000 metres (15,000 ft). Cumulus congestus clouds are formed by the development of cumulus mediocris generally, though they can also be formed from altocumulus castellanus or stratocumulus castellanus as well.
Cumulus congestus will mature into cumulonimbus calvus under conditions of sufficient instability. This transformation can be seen by the presence of smooth, fibrous, or striated aspects assumed by the cloud's upper part. This cloud type produces precipitation, often in abundance. The ''congestus'' species of cloud can only be found in the genus ''cumulus''.

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See also

External links

See also

★ Cumulus castellanus

★ Cumulonimbus

External links

★ American Meteorological Society - Glossary of Meteorology