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 ...

If you thought last week was cold, hold onto your hot lattes and be ready to bundle up as ( another ) winter storm is forecast to plunge arctic air deep into the Deep South by early next week.

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

It appeared Florida had broken its state snowfall record ... cold is blanketing the majority of the continental U.S. thanks to a polar vortex disruption. The Arctic polar vortex is a band of ...

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

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

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and ...

A mass of air called the polar vortex has escaped the Arctic and plunged southward. Some scientists see the fingerprints of ...

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