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

Month-to-date temperature analysis shows that February 2025 has been the coldest in the U.S. has seen in 15 years. In 2010, the temperature anomaly was 4.1° below average. Currently, February's ...

The polar vortex’s icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

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 ...

An Arctic blast tied in part to the polar vortex is driving record frigid air south from the Northern Plains toward the Gulf ...

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

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

The polar vortex, as explained by the National Weather Service, is a large area of low pressure and cold air that encircles ...

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

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

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 ...