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 ...
Freeze alert: Arctic blast will bring coldest air of the season from Dallas to Boston
Temperatures will plummet by up to 40 degrees this weekend as an arctic blast spreads across much of the U.S., including the ...