A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

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

The polar vortex could bring life-threatening weather conditions to some of the worst-hit areas ... Overall, about 300 ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...

Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle ...

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

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not seen ...

Starting this week into next, a lobe of the polar vortex will descend into the U.S. and bring with it brutally cold ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...