As the polar vortex disappears every spring, the way it ends dictates why some years we don’t experience these mid-spring ...

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex collapse forecast brings the return of winter the Northeast, with brutal cold air returning to New York amid a ...

Hang on to your coats and scarves: While the first part of this week brought a brief reprieve from the brutally cold weather the U.S. has been experiencing since January, frigid temperatures are about ...

The polar vortex is a massive system of freezing air contained by powerful jet streams circling the poles. When this “wall” weakens—often due to sudden stratospheric warming—Arctic air can surge south ...

The weather forecast is looking promising for warmer weather as the calendar turns to March. In the East, a dramatic warm-up is in the forecast, and the Climate Prediction Center's outlook for March 6 ...

Greetings from Ice Planet Hoth. Indeed, much of the eastern United States resembles the fictional frozen Star Wars world, and now folks there are now enduring some of the worst cold on Earth: "The ...

LOUISVILLE, Ky. — Significant winter storm expected to bring snow and bitter cold to the Kentuckiana area this weekend is being driven in part by a polar vortex, a large system of frigid air normally ...

CHICAGO (WLS) -- Polar Vortex? Not quite, but Chicago weather is on pace for a cool down next week. "The jet stream will be buckling unusually far south for mid-July, allowing a cross polar flow of ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest, Mid-Atlantic and Southern U.S. are expected to see below-freezing ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest, Mid-Atlantic and Southern U.S. are expected to see below-freezing ...