Friday, June 10, 2011

A New Weather Phenom - a Heat Burst

Imagine.   The sun has long gone down.  It's a warm evening, about 85F.   Then, within 20-minutes, the temperature shoots up almost 20 degrees to 102F.   WTF?  Exactly.

This happened in Wichita, Kansas yesterday at 12:22 a.m.  The US National Weather Service calls it a "heat burst."

during a heat burst, rain falling from higher elevations cools air beneath it as it evaporates. The cooler air then descends quickly to the surface. As it falls, it is compressed and warms dramatically.

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