"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

The polar vortex hit its peak across much of America on Wednesday, with an icy grip that made Arctic Greenland seem like a ...

The National Weather Service has issued extreme cold warnings for millions of Americans from the Canadian border to Texas.

How Alaska’s cold keeps ending up in the Lower 48 A few atmospheric factors — including the polar vortex — have come together to make the US the epicenter of cold this winter. One is a ...

Winter, which is warming faster than any other season for much of the US, seems to be making a comeback for the first time in ...

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

The latest arctic blast will move into the northern Rockies and northern Plains Saturday and spread to the central and ...

FOX Forecast Center / FOX Weather The polar vortex has returned to the U.S., and ... National Weather Service offices across the nation have issued Cold Weather Advisories and Extreme Cold ...

According to the Severe Weather Europe website—an online resource of global weather forecasts—a mass of cold air, spurred by the polar vortex, has been forecast to move over Canada and the northern ...

After a winter storm brings snow, ice to several states, Mississippi will see Arctic air from the polar vortex for a few days ...

The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...