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

The coldest air of the early winter season is blasting the eastern U.S. on Monday, with single-digit temperatures with ...

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

A polar vortex from Canada will descend into the United States this weekend, creating frigid conditions in the midwest and, later, the east coast. Temperatures are expected to hover in the single ...

Arctic wind patterns create a sort of wall around the pole that prevents frigid air from trickling southward. That wall that ...

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

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

A fresh shot of Arctic air could bring the coldest air of the season for many this week, according to AccuWeather ...

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

Weekend weather is expected to drop below freezing over Oklahoma City before warming back up on Monday afternoon.

A cold front from an expanding polar vortex brought chilly temperatures to North and Central Florida. Temperatures are ...

Dr. Amy Butler with the National Oceanic and Atmospheric Administration says the early polar vortex disruption is unusual and ...