Good afternoon and happy Thursday, readers! Temperatures are dropping here in Washington, D.C., with chances of snow tomorrow ...

An Arctic front moved across the Great Lakes on Dec. 3, triggering advisories for snow squalls in New England on Thursday, ...

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.

The first of three expected polar vortex systems is predicted to bring frigid temperatures. Here's what is expected in South ...

Such events distort the polar vortex, which causes Arctic air to descend into the U.S. and causes temperatures to plummet.

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

Temperatures across Indiana are set to be even colder tonight, as temperatures plunge into single digits and at the zero mark ...

A shifting polar vortex will send multiple rounds of Arctic air into the central and eastern United States through the first ...

There are early signs that the northeastern United States may be in for several waves of below-average low temperatures this ...

Morning Weather Update 12/4/25 ...