A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

The severe weather pattern is caused by disruption of the polar vortex, which normally remains uniform over the North Pole.

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south to just north of ...

According to a temperature outlook from the National Weather Service (NWS) Climate Prediction Center (CPC), for the January ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

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

A storm riding the edge of incoming polar air could bring the D.C. region a meaningful snowfall Sunday, but the exact track ...

Here’s the wind chill chart. Notice the four shadings, indicating how long it will take for frostbite. When we get to wind ...

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

Winter has settled in for the long haul, and the next few days only reinforce that feeling. Tonight brings mostly cloudy ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.