Three separate rounds of Arctic air have already swept across the central and eastern United States through mid-December, ...

Srirupa Chatterjee holds her hood as she crosses a street Sunday, Jan. 5, 2014, in St. Louis. Heavy snow continues to fall Sunday with forecasters calling for up to a foot (30 centimeters) in eastern ...

After a very mild fall across most of Canada, many places experienced one of their coldest starts to December in 35 years. Colder-than-normal temperatures dominated the first half of December from the ...

A polar vortex collapse is set to strike in mid-March, bringing severe winter weather and major travel disruptions across the ...

A polar vortex collapse is predicted to bring severe winter-like weather to parts of Canada and the US around the middle of this month. This same weather event affected several regions across North ...

Some places in Canada have seen, or are set to see, wind chills as low as -50 this week, as the effects of the polar vortex shoots frigid, Arctic air southward and eastward. With winter around the ...

The “polar vortex” weather system blasting Canada and the U.S. with extreme cold has disrupted infrastructure and threatened crops and cattle. But economists say they don’t expect to see a lasting ...

FILE PHOTO: The city skyline is seen in drifting snow during the polar vortex in Buffalo, New York, US, January 2019. (REUTERS) A polar vortex collapse is expected to strike in mid-March, bringing ...