The polar vortex hasn’t just been discovered; it has been around for as long as Earth has had an atmosphere. It’s a cold, swirling whirlpool of low pressure surrounding both o ...

According to the Severe Weather Europe website—an online resource of global weather forecasts—a mass of cold air, spurred by the polar vortex, has been forecast to move over Canada and the northern ...

A week-long, polar vortex-related Arctic outbreak rivaling any seen so far this winter is slated to bring frigid conditions ...

It’s cold, it’s icy and it’s dreaded by Canadians across the country. It’s the polar vortex. Weather specialist Riley Laychuk breaks down what the polar vortex is and why it might not be as scary as ...

We are tracking the return of the polar vortex next week as a wavy jet stream brings a blast of Arctic air to the Great Lakes.

Unfortunately, it looks like the cold weather will stick around for at least this forecast period. Maybe a little bit longer.

A big reason is we have another lobe of the Polar Vortex that is going to shift south into far southern Canada. This lobe of ...

When the Polar Vortex is in a weakened state, a jet stream wobble sending polar air into the mid-latitudes becomes more ...