The frigid weather will be felt through the Great Lakes Region and the Northeast, but is even extending to Texas.

Most of Virginia is expected to receive 1-4 inches of snow on Monday, just three days after a similar snowfall covered all ...

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

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

Feeling that sudden chill? A triple polar vortex is sweeping across parts of the U.S. Here’s what that means — and where it’s ...

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

A growing body of research indicates that polar vortexes are likely becoming more frequent due to the climate crisis.

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

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 ...

A polar air mass from Canada is hovering over Wisconsin on Thursday, Dec. 4, bringing single-digit temperatures and negative ...

Frigid Arctic air is pushing south into the United States, and fortunately, it doesn’t look like freezing temperatures will hit Texas just yet.

A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across portions of the United States.