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

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

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

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

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

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

It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

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

Most of the U.S. will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this weekend.

Donald Trump announced the change to his plans on TruthSocial, pointing to a wind chill forecast by the National Weather Service forecasting 'severe record lows' on Monday.

As of Saturday afternoon, the majority of U.S. states will experience some influence from a blast of Arctic air out of the north due to such a disruption in the polar vortex. 🥶 Extended Arctic ...