Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

Millions of people across the U.S. will experience subzero or below-average temperatures in the coming days as a polar vortex ...

The weather flow is gradually changing now and as we head into early February. Our storm systems will come from the west and ...

Most of the US will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this ...

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

Temperatures are expected to plummet over the weekend, bringing life-threatening conditions to large stretches of the United ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

The colder-than-normal temperatures in Houston are part of a larger pattern of Arctic air sweeping through Texas and much of ...

The vortex is located in the stratosphere, the layer above the troposphere (the troposphere is where we live and most weather occurs). In the winter, the polar vortex helps keep frigid ...