"Bitter cold could linger through the end of the month," the Weather Prediction Center said in an update on Monday.

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

Starting Thursday, dangerously frigid air from Siberia and the North Pole is forecast to plunge the Great Lakes region into ...

What is the polar vortex? This article explains what a polar vortex is in simple terms, how it influences winter weather in ...

A crippling winter storm that could paralyze parts of the Southern and Central U.S. this weekend, and some of the effects ...

What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with freezing rain, sleet and snow.

A polar vortex is settling over the eastern United States, and temperatures are expected to fall into the weekend, bringing ...

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms.

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.