As the cold front moved southward Tuesday, it prompted a cold weather advisory for the Gulf Coast and pushed temperatures ...

If you're braving the cold during the polar vortex that's skating across much of the US right now, you're probably looking ...

Polar vortexes on a warming planet might sound counterintuitive, but there's a scientific reason.

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

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill ...

In Indiana, the National Guard was activated to help stranded motorists. The storm was expected to reach the Mid-Atlantic ...

The United States continued to freeze through a polar vortex that brought rare cold to the southern United States and chances ...

Portland was forecasted to be about 6 degrees below normal Sunday and Monday, according to the National Weather Service.

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?