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Polar Vortex

Polar Vortex

The severe cold snap of January 2014 was caused by a polar vortex—an ominous-sounding weather phenomenon that actually is part of the normal accumulation of cold air over the poles. A polar vortex is a spinning, large area of low pressure, found over both the North and South poles.

Author(s): Gregory L Vogt, EdD
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Polar Vortex: The Cold Snap of 2014

Arctic Polar Vortex

US East Coast on January 6, 2014

NWS Windchill Chart