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.

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

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping ...

"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 polar vortex is area of fast-moving winds well above the Earth’s surface and the jet stream that circle the Arctic during the Northern Hemisphere’s coldest months. When it’s strong ...

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

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a ...

A few atmospheric factors — including the polar vortex — have come together to make the US the epicenter of cold this winter. One is a weather pattern around the Arctic Circle that has emerged more ...