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.

Frigid temperatures engulfed the South on Monday ahead of a winter storm that’s expected to spread heavy snow and disruptive ...

Major winter storm brings heavy snow to East Coast as Arctic blast puts millions under warnings from Plains to Maine ...

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 major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to ...

Wind chill values are expected to drop below 10 degrees, with some locations seeing wind chills closer to zero. Forecasters note a slight chance of snow flurries Saturday.

Editor's Note for Sat. Jan. 18: A polar vortex is set to impact much of the US. Click here for the latest update. A polar vortex is forecasted to blanket most of the continental United States in ...

Tennessee, along with most of the lower 48 states, can expect a blast of cold air thanks to a polar vortex. The term has recently become popularized describe any blast of arctic air that gives us ...

Global News meteorologist Anthony Farnell said the chilly temperatures, caused by a polar vortex spinning across Canada, will “overwhelm” and will start this weekend and carry into next week.