A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

Year-round, severe, Artic air is usually kept tightly contained in the North Pole. Arctic wind patterns create a sort of wall ...

The polar vortex will push Artic air south, and a severe winter storm could follow. How cold will it get in Louisiana?

A displacement of the Polar Vortex will usher in days of Arctic cold through the end of January. The core of the Polar Vortex ...

"Bitter cold could linger through the end of the month," the Weather Prediction Center said in an update on Monday.

A shift in the polar vortex has forecasters watching closely as the coldest air of the season approaches. Here's what to know ...

The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles. It ALWAYS exists near ...

The polar vortex is set to bring a winter storm to parts of Mississippi with ice, snow. But extreme cold will last for days.

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

His people told us 'he is wearing glasses because of photosensitivity, while the minor issue mentioned last week clears up'.

Dangerous life-threatening cold has spread over much of the Northern Plains, Midwest and parts of the Northeast, with another ...