Three polar vortex systems are anticipated in December, and the first is expected this week, according to AccuWeather. 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 expect in Tennessee.

The first of three expected polar vortex systems is predicted to bring frigid temperatures. Here's what is expected in South ...

A shifting polar vortex will send multiple rounds of Arctic air into the central and eastern United States through the first ...

An arctic blast is on track to bring freezing temperatures to central and eastern states.

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

A polar air mass from Canada is hovering over Wisconsin on Tuesday, Dec. 3, bringing single-digit temperatures and negative wind chills.

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

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

If you hear that the polar vortex is coming, you should expect to experience a lot of cold. CLEVELAND — The temperature ...

But the country could be in for shockingly cold weather soon as the polar vortex creeps down from the North Pole and across ...

Three images of Uranus that are blue, green and red showing a weird bright spot A vortex of relatively warm air has been detected swirling beneath Uranus' clouds, providing strong evidence for the ...