Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

The sudden blast may come as a shock to many Americans after a mostly mild start to winter, but that warmth may be partly ...

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather ...

You have without a doubt heard the buzz by now, and the rumors are indeed true.

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

Observations of the two solar system gas giants have revealed that Jupiter 's north pole hosts a central polar vortex ...

MIT scientists may have finally found the answer to the difference in polar weather of the almost similar planets.

La Niña continues as one of the leading playwrights of U.S. weather this winter, helping guide the jet stream and ...

Each of these lobes of the Polar Vortex will bring two or three days of bitterly cold, below-normal temperatures. We aren’t ...

Don't be fooled by the string of uneventful weather — the polar vortex is rebooting and will take another swing, or several, at the greater Philadelphia region, leading to a turbulent weather pattern ...