A cold winter is likely in store for those in the northern U.S., with milder temperatures across the southern tier, according to NOAA’s National Weather Service winter outlook issued Thursday. The ...

The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

The forecast released Oct. 16 predicts where above- or below-normal temperatures and above- or below-normal precipitation are ...

The polar vortex is a broad, fast ribbon of cold air that encapsulates the Arctic high in the stratosphere. Stable, it confines cold air near the North Pole. Unstable, it is rocked and stretched out ...

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 ...

AccuWeather's longterm predictions show average November-December temps hitting low 70s in North and Central Florida, with a ...

The polar vortex is beginning its seasonal strengthening, signaling a gradual shift toward cooler weather. Frost advisories were issued in parts of the Great Lakes region, New York, and New England as ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing as autumn has officially arrived. In the short term, this means gradual cool-downs and a more active storm ...

The Earth's polar vortex is strengthening, signaling a gradual cooling and a more active storm track across the northern U.S. North Carolina's first freeze typically occurs between late October and ...

The polar vortex, the crippling North Pole hurricane that is turning boiling water turn into snow and wreaking havoc with air-travel across the nation, is also threatening oil production and hydraulic ...

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...