The polar vortex is set to bring a winter storm to parts of Mississippi with ice, snow. But extreme cold will last for days.

The polar vortex will push Artic air south, and a severe winter storm could follow. How cold will it get in Louisiana?

Year-round, severe, Artic air is usually kept tightly contained in the North Pole. Arctic wind patterns create a sort of wall ...

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

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

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

This coming weekend, the central and eastern United States will receive a blast of Arctic air, which will also affect ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S.