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

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

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

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

A polar vortex system is expected to bring two or more cold waves to Florida this week. Temperatures in North Florida could ...

Meteorologists sound the alarm as frigid temperatures are expected to sweep across the U.S. South this weekend.

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is ...

Cold temperatures are set to continue into the weekend, but New England will feel another icy blast of Arctic air Sunday ...

The polar vortex phenomena is making this December much colder than average. Students should prepare themselves for changes ...

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

Another round of bone-chilling air from the Polar Vortex is expected to invade the central and northeastern U.S. this weekend ...

The Pacific Northwest is expected to see up to seven inches of rain this week, as the eastern United States braces for arctic ...