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

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

Another round of bone-chilling air from the Polar Vortex is expected to invade the central and northeastern U.S. this weekend ...

Arctic wind patterns create a sort of wall around the pole that prevents frigid air from trickling southward. That wall that ...

It is forecasted to be cold in the Bay State as a result of the breaking, or "displacement" of the polar vortex. According to ...

Uncertainty remains high regarding all aspects of any snowfall, and those who will be in the Midwest and Northeast should monitor forecast changes as the week progresses.

A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the ...

The Arctic polar vortex is expected to move south, which some say will lead to the coldest, harshest winter in years. Wyoming ...

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

A fresh shot of Arctic air could bring the coldest air of the season for many this week, according to AccuWeather ...

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee this coming weekend. A polar vortex is bringing Arctic air into the United States, and ...

High above the North Pole, about 10 to 30 miles above Earth’s surface, sits a massive whirlpool of icy air known as the polar ...