It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

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

Scientists say a warming planet may have been responsible for a winter storm that dropped 10 inches of snow on Northwest ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

Around 40 million people in the U.S. are under a winter storm warning from an unusual blast of severe cold weather and snow ...

A winter storm that is expected to begin in Texas next week could end up bringing snow and ice to parts of Florida.

Most of the U.S. 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 weekend.

A polar vortex that has hit much of the U.S. with ice and snow has dealt a glancing blow to Florida, dropping coastal ...

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

A major storm could drop significant amounts of snow, ice pellets, and freezing rain across the U.S. Deep South through Tuesday ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...