Dr. Amy Butler with the National Oceanic and Atmospheric Administration says the early polar vortex disruption is unusual and ...

The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

The series of Arctic outbreaks, of which at least three are expected, will likely surge south out of Canada into the Plains, ...

Year-round, severe, artic air is usually kept tightly contained in the North Pole. Arctic wind patterns create a sort of wall ...

Temperatures dropped to near zero — with wind chills in the negatives — Thursday night into Friday morning as the chilly air ...

Tuesday's heavy snowfall led to crashes, parking bans and hundreds of closures. Now, an arctic air mass is headed for the ...

A polar vortex from the North Pole has shifted south over Canada, and will be pushing chilly sub-zero temperatures down into ...

If you hear that the polar vortex is coming, you should expect to experience a lot of cold. CLEVELAND — The temperature ...

Arctic air is taking cold to another level this week and the US could be facing bouts of it well into December thanks to the polar vortex.

A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the ...

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...