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Wall cloud facts for kids

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Wall cloud with lightning - NOAA
Wall clouds with lightning and rain

Wall clouds (or pedestal clouds) are localized, large and persistent lowering cloud formations that develop below the rain-free region of thunderstorms. Rotating wall clouds are indicative of mesocyclones in thunderstorms. Wall clouds do not always rotate, though.

Wall clouds are formed by a process known as entrainment, when an inflow of warm, moist air rises and overpowers rain-cooled air during a downwind downdraft.

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Wall cloud Facts for Kids. Kiddle Encyclopedia.