A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy ...

On March 9, the polar vortex wobbled and then snapped back the other way as mighty winds, suddenly shifting from the west to the east - something that typically happens once a year - usually in the ...

Accuweather Senior Meteorologist Paul Pastelok says the March polar vortex disruption is one of the largest meteorologists have seen in a long time. A polar vortex is a large area of low pressure ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and ...

As of March 16, average ice cover across the lakes was roughly 13.5%. Lake Superior was at 9.2%, and Lake Michigan was at 10.7%.

The polar vortex is a persistent area of low pressure dozens of miles above the earth's poles (both northern and southern). Because the vortex is so high up in the atmosphere, and because it's ...

BISMARCK, N.D. (AP) — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies and Northern Plains on the heels of weekend storms that pummeled the ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.