cumulonimbus cloud


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Related to cumulonimbus cloud: cirrostratus cloud, Nimbostratus cloud

cumulonimbus cloud

[¦kyü·myə·lō′nim·bəs ‚klau̇d]
(meteorology)
A principal cloud type, exceptionally dense and vertically developed, occurring either as isolated clouds or as a line or wall of clouds with separated upper portions.
References in periodicals archive ?
Cumulonimbus clouds can grow to heights of more than 12 miles.
These towering clouds can produce moderate rain or snow showers and may grow into cumulonimbus clouds.
LOW L W L EVEL CLOUDS CUMULONIMBUS CLOUDS - These are heavy and dense low-level clouds, extending high into the sky in towers, plumes or mountain shaped peaks.
For instance, Japan Airlines replaced its Dreamliners on the Delhi- Tokyo route with Boeing 777 LRs due to formation of ice crystals when they flew through dangerous cumulonimbus clouds over China's airspace.
This results in pockets of relatively warm, moist air quickly shooting up into the sky which eventually cools and condenses into cumulonimbus clouds.
Cumulonimbus clouds are dense, towering, vertical clouds that signal heavy rain, thunderstorms and other severe weather.
Thunderstorm clouds, officially called cumulonimbus clouds, also can produce hail, and they're the only clouds that can.
HAIL forms in cumulonimbus clouds - a type of dense, towering vertical cloud associated with powerful upward air currents.
There have been videos of tornadoes forming, at their peak strength, and as they pulled back into the giant cumulonimbus clouds from which they descended.
Met Office forecaster Andy Bodenham said: "These big stones are formed at the top of cumulonimbus clouds where it's freezing cold.
While it's the heat produced by condensing water vapor that drives the updrafts in the towering thunderheads of cumulonimbus clouds, those in pyroCbs are largely driven by the intense heat of the wildfire at ground level.