Earth and Environment Atlas

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Outflow

Meteorology

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In meteorology, outflow is air that flows outward from a storm system, associated with ridging or anticyclonic flow. In the lower troposphere it radiates from thunderstorms as a wedge of rain-cooled air, visible as a thin rope-like cloud on satellite imagery or a fine line on radar, and for observers on the ground a thunderstorm outflow boundary often approaches in otherwise clear skies as a low, thick cloud bringing a gust front.

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