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

Swaths of the U.S. are expected to be hit with multiple intrusions of frigid air this month.

Blasts of arctic air will hit the Midwest and Eastern U.S. this week. How cold will it get in Florida?

The Pacific Northwest is expected to see up to seven inches of rain this week, as the eastern United States braces for arctic cold.

The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

As we head into the polar vortex, meteorologists are calling for up to a foot of snow in some parts of the U.S.

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee.

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills ...

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to expect in Tennessee.

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the polar vortex.

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is ...

See how the polar vortex will impact Jacksonville temperatures this week, how cold will it get?