A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast says the low ...

Another brutally cold weekend is on the way as a piece of the Polar vortex dips out of the Arctic Circle, sending frigid air ...

This cold blast could be relatively short-lived, with a return to more typical wintry temperatures by later in December.

NEW YORK — Millions along the Interstate 95 corridor on the Northeast Coast will see their first significant winter storm of ...

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.

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

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

More Arctic air is building over northern Canada and will be directed into the United States, courtesy of the polar vortex. How long will the cold waves last? Will it stay cold through Christmas?

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 ...

The central and eastern United States are bracing for an extraordinary cold snap just ahead of Christmas, according to a ...

Computer models predict that the U.S. will get blasted with extreme cold in December. How will the Pensacola area be impacted ...