Three separate rounds of Arctic air have already swept across the central and eastern United States through mid-December, ...

A powerful polar vortex slams an already-frozen state as NOAA warns the deep freeze could last for weeks, bringing extreme ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they ...

Those struggling with high heating bills due to relentless cold and sore backs from shoveling snow in the Midwest and ...

Three polar vortex systems are anticipated in December, and the first is expected this week, according to AccuWeather. The ...

Thanksgiving is less than a week away which means the fall season is ending. With it comes colder temperatures from an ...

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...

Forecasters are tracking new polar vortex changes that could reshape early December across the U.S. How will this affect ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...