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

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

Meteorologists had predicted that parts of the U.S. would experience the 10th and coldest polar vortex event this season.

Ushering in the polar vortex is a winter storm, which was tracking from the Midwest toward the East Coast on Saturday. In ...

Some of the coldest temperatures are expected in Montana, and avalanche warnings have been issued in Utah, Colorado and ...

It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for much of the ...

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

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

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

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