This cold blast could be relatively short-lived, with a return to more typical wintry temperatures by later in December.

Global competition in the Arctic is raising hopes of a revival in the town of Churchill. We went to meet the people, and the ...

A polar vortex is a large, low-pressure system of cold air that typically resides near the Earth’s poles, surrounded by ...

The United States is expecting another hit by the polar vortex starting this weekend. Here's what's expected in South ...

Another brutally cold weekend is on the way as a piece of the Polar vortex dips out of the Arctic Circle, sending frigid air ...

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will temps ...

A polar vortex is a mass of cold air that normally stays contained over the Arctic. The cold blast is predicted to be ...

The planet's most extreme cold air will be barreling into the central and eastern United States this coming weekend "like a ...

"Arctic air will bring near record cold temperatures and dangerous wind chills," the National Weather Service said.

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee this coming ...

That’s what’s happening this weekend: a stretched polar vortex is helping send arctic air deeper into the United States, ...

More Arctic blasts could follow in the coming weeks before tapering off after the middle of the month. Those cold stretches ...