WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

"Potentially hundreds of thousands of people may go without electricity and heat for days, one meteorologist said ...

The severe weather pattern is caused by disruption of the polar vortex, which normally remains uniform over the North Pole.

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south to just north of ...

National Weather Service Binghamton has issued a hazardous weather outlook for the area as the polar vortex approaches.

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

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

A polar vortex brings bitterly cold Arctic air into southern Ontario. Here’s what it is and what you can expect.

A storm riding the edge of incoming polar air could bring the D.C. region a meaningful snowfall Sunday, but the exact track ...