When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast says the low ...

Central Texas witnessed one of its worst flood events on record during a busy holiday weekend. The combination of heavy rainfall and the hilly terrain led to the extreme rise in rivers and a Flash ...

Polar vortices exist throughout the year at the poles. In the Northern Hemisphere, the polar vortex expands many times over ...

It’s looking more likely the Chicago area could see a blast of arctic air around and after Thanksgiving Day. NBC 5 Storm Team Meteorologist Kevin Jeanes took a look at what’s going on and what the ...

NEW YORK, NY - After a week of tracking clippers, snow along the Northern Tier and a resilient Polar Vortex, a powerful cross-country winter storm slammed millions across the U.S. this weekend to add ...

CHICAGO (WLS) -- "Polar Vortex" is a dreaded term that we all have become accustomed too over the past few years. But what is it? The polar vortex is always present in the Arctic Circle. It is a broad ...

According to the FOX Forecast Center, the circulation of the Polar Vortex will weaken into the weekend, which will allow more cold air to spill into the Midwest and Northeast, priming the pump, so to ...

A winter storm is bringing snow, ice, and cold temperatures to much of the U.S. this week. Iowa is expected to receive accumulating snow from Saturday afternoon into Sunday morning. Northwest and ...