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

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

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 ...

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

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 ...

National Weather Service Binghamton has issued a hazardous weather outlook for the area as the polar vortex approaches.