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

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

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

A crippling winter storm that could paralyze parts of the Southern and Central U.S. this weekend, and some of the effects ...

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 polar vortex is settling over the eastern United States, and temperatures are expected to fall into the weekend, bringing ...

A storm riding the edge of incoming polar air could bring the D.C. region a meaningful snowfall Sunday, but the exact track ...

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

What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with ...

Winter has settled in for the long haul, and the next few days only reinforce that feeling. Tonight brings mostly cloudy ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S.

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