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

Much of the U.S. will experience the cold weather, with Floridians facing the threat of frost later this week.

We may have some warmer days ahead, but beware the dip to come in Western North Carolina. Here's how the polar vortex will ...

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

Several states across the Northeast and into the Midwest are expected to experience unseasonably cold temperatures this ...

Memphis is gearing up for another round of cold temperatures the weekend of Dec. 13 and 14. The Eastern United States will ...

The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

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

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

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

Are you over the cold yet? Astronomical winter is more than a week away, and the subfreezing temperatures on most days have ...

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