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One of the most feared and easily recognized storm clouds is the funnel cloud. Produced when a rotating column of air condenses, funnel clouds are the visible part of tornadoes that extend downward from the parent thunderstorm cloud.
But remember, not until the funnel reaches the ground or “touches down” is it called a tornado.
Source: Means, Tiffany. “Clouds That Spell Severe Weather.” ThoughtCo, Aug. 1, 2021, thoughtco.com/clouds-that-spell-severe-weather-4089934.
