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

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

Frigid temperatures are keeping snow on the ground in parts of the South as some cities in the North report dangerously low ...

As a lifelong New Yorker, you'd think I'd be prepared whenever a polar vortex makes an unexpected appearance each winter. I'm ...

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

In Indiana, around zero degrees was likely, the map showed, with temperatures of around three degrees possible in Northern ...

Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...

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

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

Are you ready for the coming arctic storm? Here’s the latest Colorado weather forecast and everything else you need to know ...

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

C with the windchill but the worst is likely over. Environment Canada lifted its extreme cold warning with mid-day ...