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

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

An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia will arrive from Canada by week’s end, bringing with it dangerously cold wind ...

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

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

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

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

A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder Arctic air than last week.

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

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

Brits could face several inches of snow in the coming days according to shocking new weather maps, with forecasters also ...