Polar Vortex, cold and Arctic
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Such events distort the polar vortex, which causes Arctic air to descend into the U.S. and causes temperatures to plummet.
Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...
A polar air mass from Canada is hovering over Wisconsin on Thursday, Dec. 4, bringing single-digit temperatures and negative ...
Chicago faces its worst start to winter in nearly 150 years, according to a prominent weather blogger, with temperatures ...
Polar vortex will hit the U.S. with three waves of snow, extreme cold and storms. Will Mississippi weather feel the chill?
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