Think you know what the polar vortex is? You may not know the full story. The term is being tossed around left and right again this year.
Watch meteorologist JD Rudd give a few facts on what the polar vortex actually is and what it is not.
JD Rudd explains the Polar Vortex
Posted at 5:30 PM, Nov 08, 2014
and last updated 2014-11-09 12:20:54-05
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