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

Impact on North America's weather in March - An in-depth look at the forecasted polar vortex collapse and its potential ...

Weather analysts are divided over the polar vortex’s influence on weather and what that means for the rest of this year’s winter.

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

Is this stream of cold air "a polar vortex?" Not in the truest sense of the word, scientists say. This week the actual polar ...

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

Geographic Location Wisconsin, nestled in the northern reaches of the United States, finds itself uniquely positioned to ...

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 ...

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

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 ...