Cumulus Congestus

Some articles on cumulus, cumulus congestus:

Cloud Types - Tropospheric Class: Families, Genera, Species, Varieties, and Supplementary Features - Vertical Cumuliform, Stratiform, and Cumulonimbiform (low To Middle Cloud Base) - Genus Cumulus: Towering Vertical
... Abbreviation Tcu (towering cumulus) WMO species Cumulus congestus These large cumulus clouds have flat dark grey bases and very tall tower-like formations with tops mostly in the high level of the troposphere ... (ICAO) designates this species as towering cumulus (Tcu) ... WMO variety pattern-based Cumulus congestus radiatus Towering cumulus arranged in parallel lines that appear to converge at the horizon ...
Towering Cumulus Cloud - Description
... Cumulus congestus clouds are characteristic of unstable areas of the atmosphere which are undergoing convection ... Because cumulus congestus is produced by strong updrafts, it is typically taller than it is wide, and cloud tops can reach 6 kilometres (20,000 ft), or higher in the tropics ... Cumulus congestus clouds are formed by the development of cumulus mediocris generally, though they can also be formed from altocumulus castellanus or stratocumulus ...