No. Cumulonimbus clouds are thunderheads. Cumulus clouds usually indicate fair weather.
Cumulus clouds are usually called "thunderheads"
Another name for this type of cloud is thunderhead
A Thunderhead is a type of cloud. A Thunderhead may be seen during a thunderstorm and the best chance to see them would be along cold front squall lines.
A thunderhead was filling the horizon when we set out, making us consider starting later when it had passed.
Cumulus of low vertical extent- "fair weather cumulus".
Cumulonimbus clouds. These clouds are associated with thunderstorms and can produce heavy rain, lightning, and strong winds.
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Cumulus is a type of cloud! Cumulus comes from a Latin word meaning: heap
The Cisco Kid - 1950 Thunderhead - 3.13 was released on: USA: 30 November 1952
Thunderhead - Son of Flicka - 1945 is rated/received certificates of: Australia:G Finland:K-3 (2006) Sweden:Btl
cumulonimbus clouds