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

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

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

According to a temperature outlook from the National Weather Service (NWS) Climate Prediction Center (CPC), for the January ...

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south to just north of ...

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

Large swaths of the United States will get an arctic blast this week, leading to heavy snow, sleet, and freezing rain in ...

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

The severe weather pattern is caused by disruption of the polar vortex, which normally remains uniform over the North Pole.

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

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...

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