The U.S. is set to feel the impacts of an Arctic polar vortex next week, meteorologists have warned, with sub-zero ...

Threat level: The Arctic air is likely to send temperatures plunging to at least 30 degrees below average for mid-February ...

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 ...

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 ...

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 ...

Swift Current and the southwest have been in the midst of frigid temperatures and severe cold lately that isn't expected to ...

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

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This ...

"It was so cold that the precipitation fell mostly as snow," Alessi said. What caused the jet stream to drop as far south as ...

Brits could face several inches of snow in the coming days according to shocking new weather maps, with forecasters also ...