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 ...

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

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

"Another shot of arctic air is on the way for next weekend," the NWS said.

Winter hasn't even officially started, but parts of the country are already bracing for what could feel like the deep freeze ...

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

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

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

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

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

The polar vortex can commonly be disrupted during the winter and is known to cause an Arctic outbreak in the United States.