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Cumulonimbus Cloud - AZ
Cumulonimbus, from the Latin cumulus ("heap") and nimbus ("rainstorm", "storm cloud"), is a dense towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapor carried by powerful upward air currents. If observed during a storm, these clouds may be referred to as thunderheads.
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Photo credit: © Phil Degginger / Alamy / Afripics
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Keywords: air, atmosphere, climate, climatology, cloud, clouds, condensate, condensation, congestus, cumulonimbus, cumulus, dew, humidity, meteorology, moisture, point, precipitation, pressure, temperature, vapor, water, weather