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

The dip of Arctic air into the Midwest expanded ice coverage across all 5 Great Lakes, some seeing greater increases than ...

A polar vortex of brutally cold air that normally ... “The arctic blast is due to first hit the Rockies and Great Plains ...

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

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

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.

MINNEAPOLIS, Minnesota — Our entire region is under an Extreme Cold Weather Warning until 12 p.m. Tuesday; wind chills could fall as low as -45 degrees. This Arctic blast is thanks to a polar vortex.

Nearly 300M Americans face an arctic blast with sub-zero wind chills, heavy snow, and record-low temperatures ahead ...

But is Wisconsin in a polar vortex? And what is a polar vortex ... corps member who writes about the environment and the Great Lakes. Reach her at [email protected] or follow her on X@caitlooby.

A polar vortex is slated ... After descending over the Rockies and Great Plains, forecasters said the arctic air will plunge onto the Deep South and Great Lakes by Saturday night before ...