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 ...

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

The polar vortex has split and will drift into the Hudson Bay through next week with sustainable cold weather returning to ...

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

Forecasters have warned that two 'multi-hazard' events are set to strike eastern parts of the US this week, leading to heavy ...

San Francisco lags behind all major metros in office return, with the weakest recovery nationwide, impacting transit and ...

Storm warnings are in effect in the Plains, the Midwest, the Great Lakes, and the mid-Atlantic through tonight.

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 ...

As we prepare for a very busy weather week, what comes next? We told you earlier in the month the polar vortex was going to ...

Current trend in heavy snowfall and bitterly cold temperatures is directly linked to a disruption to the polar vortex caused ...

Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go ...