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

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

Once every two years there is a disruption of the polar vortex. So you get very strong warming like tens of degrees Celsius in a few days, which is associated with a breakup or stretching or ...

The United States is preparing for a severe drop in temperatures and an icy onslaught as it anticipates the season's coldest ...

The tenth and coldest polar vortex of the season is blasting across the US this week. More than 58million Americans are under National Weather Service cold warnings from the US-Canada border to as far ...

Lisa Muscat carries her dog Zoey to safety after a water main break in Detroit caused massive flooding, triggering evacuations, Monday, Feb. 17, 2025. (Andy Morrison/Detroit News via AP) The term ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the coldest ...

This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one. This allows for cold air to flood southward into ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The term “polar vortex” usually refers to ...