Winter weather is back in the East, but the extended forecast has some good news for milder weather later in March.

Could early February's blast of cold in the northeastern United States be one of the last appearances of our wintertime foe, the polar vortex? While forecasters can't yet say that for sure, a warmer stretch of weather appears likely for much of the nation ...

The jet stream is the river of air that moves weather from west to east on a roller coaster-like path. Usually, the plunges are as mild as a kiddie roller coaster. But now that jet stream is barreling down near-vertical, scream-inducing drops, followed by straight-up ascents.

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 vortex split in the stratosphere nudging frigid Arctic air ...

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 to 12 shows warmth spreading across much of the nation ...

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 eastern United States is forecast to be the coldest place ...