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

CLEVELAND — High above the Arctic, swirling like a giant icy crown, the polar vortex is a permanent feature of our atmosphere ...

A cold winter is in store for those in the northern U.S., with milder temperatures across the southern tier, according to ...

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 ...

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 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 ...