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

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

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

This blast of frozen temperatures is tied to a polar vortex... but what is that? Air spins around the notoriously cold North and South Poles. When the air is spinning fast, it's stable, but when it is ...

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.

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 ...