It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

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

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

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...

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

The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is to blame.

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 ...

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 ...

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

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 has taken on an unexpected pattern this winter — one that’s made part of the United States the most unusually cold place on the planet, at least so far this year. While the ...