Starting Thursday, dangerously frigid air from Siberia and the North Pole is forecast to plunge the Great Lakes region into ...

The meteorologists said the polar vortex system is set up due north of Michigan over Canada's Hudson Bay. It's at least ...

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States ...

After this weekend's snow storm moves out, cold Arctic air will move in.

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.

Large swaths of the United States will get an arctic blast this week, leading to heavy snow, sleet, and freezing rain in ...

A shift in the polar vortex has forecasters watching closely as the coldest air of the season approaches. Here's what to know ...

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...

"Bitter cold could linger through the end of the month," the Weather Prediction Center said in an update on Monday.