The polar vortex is beginning to stir, signaling a gradual shift toward cooler fall weather in the northern U.S. Tennessee is expected to see mild temperatures through December, with the average first ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is like a ...

Forecasts continue to point toward the Arctic polar vortex bringing chilling winds across swathes of the U.S. in the new year. The polar vortex may lead to severe weather conditions, such as heavy ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A blob of warm air high in the atmosphere has pushed the polar ...

The vortex is strongest during the winter and usually weakens or even disappears in the summer. When the polar vortex weakens or even splits, it allows frigid air to escape and push southward toward ...

Millions of people across the U.S. will experience subzero or below-average temperatures in the coming days as a polar vortex coming from Siberia will usher in a new cold front. The Rockies, northern ...