According to meteorologists and climatologists, critical changes in two major atmospheric patterns—La Nina and the polar ...

The Polar Vortex serves as a powerful barrier that confines cold air within the polar regions. When this barrier weakens, frigid air can escape into mid-latitude areas, leading to severe winter ...

Wisconsin is in store for a warmer weekend, but could see a return of Arctic air around Thanksgiving as models suggest weakening in the polar vortex.

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south for Veterans' Day. But ...

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 ...

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a ...

Michigan could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, which could push frigid air into the northern U.S.

A possible wobble in the polar vortex could soon push frigid air into the northern U.S., and Ohio could see more arctic air around Thanksgiving.

New York could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, ...

The polar vortex is an area of low pressure, a wide expanse of swirling cold air that is parked in polar regions, according ...