Cumulonimbus Cloud
Cumulonimbus (from the Latin cumulus ("heap") and nimbus ("cloud")) is a dense towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapour carried by powerful upward air currents. Cumulonimbus may form alone, in clusters, or along cold front squall lines. They may produce lightning and other dangerous severe weather, such as gusts and hail. Cumulonimbus progress from over-developed cumulus congestus clouds, and may further develop as part of a supercell. Cumulonimbus is abbreviated Cb, and are designated in the D2 family.
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Famous quotes containing the word cloud:
“These boys who love their mother
who loves men, who passes on
her sons to other women;
The cloud across the sky. The windy pines.
the trickle gurgle in the swampy meadow
this is our body.”
—Gary Snyder (b. 1930)