Gust Fronts
resembles the passage of a cold front

A gust front is a boundary that separates a cold downdraft of a thunderstorm from warm, humid surface air. Its passage at the surface resembles a cold front. A macroburst (damaging thunderstorm gust front) was advancing from northwest to southeast in this westward view across the West Texas prairie. Note the well-developed mammatus field under the leading anvil, and the new updrafts being lifted along the gust front.

Photograph by: Doswell

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Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.