Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

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

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

An Arctic blast that began in the northern plains on Saturday spread bitter cold from the Rockies through the East Coast and ...

The effects of the polar vortex are expected to reach Texas on Monday and bring freezing or below-freezing temperatures ...

A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will ...

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...