Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

This cold was certainly extraordinary, but the polar vortex event of January 2019 brought life in the northern and central United States to a frozen halt. At that time in our area, the coldest actual ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

Plenty of snow is on the way as bitterly cold temperatures spawn snow squalls off the still-unfrozen lakes across Ontario.

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

Much of the eastern half of the US will this week experience some of the coldest temperatures this winter, if not for several ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

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The polar vortex will soon elongate over North America with a dangerous cold moving into sections of Canada and the U.S.

ANNAPOLIS, Md. (AP) — A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies ...

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...