As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is ...

Frigid Arctic air is pushing south into the United States, and fortunately, it doesn’t look like freezing temperatures will ...

A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the ...

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 ...

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills ...

Polar vortex will hit the U.S. with three waves of snow, extreme cold and storms. Will Mississippi weather feel the chill?

So is a polar vortex that weather watchers are forecasting for the central and eastern United States going to hit Florida ...

The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

Three rounds of cold Arctic air from a shifting polar vortex are expected to plunge much of the central and eastern U.S. into ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they ...

A polar vortex will bring arctic air and subzero temperatures to parts of the U.S. through the middle of the month, according ...

It is forecasted to be cold in the Bay State as a result of the breaking, or "displacement" of the polar vortex. According to ...