Arctic air moved south, into the area starting late last week and has lingering since. This has lead to dangerously cold ...

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 ...

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

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 Arctic outbreak is building, bringing below-freezing temperatures to more than 100 million Americans next week.

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.

FADEL: OK. How is this different from that other winter weather phenomenon that sounds hypothermic-inducing, a polar vortex? FREEDMAN: Yeah, so this is actually related to the polar vortex. FADEL: OK.

When this stratospheric vortex becomes disrupted or stretched, it can distort the jet stream as well, pushing it southward in some areas and causing cold air outbreaks. The Arctic polar vortex is ...

We've already fallen as low as 1° this year. Another dip in the polar vortex makes that possible for Cincinnati again next week. We've already fallen as low as 1° this year. Another dip in the ...