Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South
A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.
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Polar vortex set to freeze the U.S. as far as the Deep South
On Monday, the polar vortex will reach the Deep South, with temperatures down to ... temperatures are expected from the Plains into the East. Forecast temperatures will be 25-30 degrees below ...