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

Maine has plunged into an arctic freeze before winter has even officially arrived and these bitter temperatures may stick ...

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

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

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

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

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

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

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

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.

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