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

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 work.

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

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

KANSAS CITY — A notable, early-season stratospheric warming event that occurred in mid-November brought widespread snow and much colder temperatures to Canada and the north-central and eastern ...

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

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 ...

As December progresses, weather alerts are becoming increasingly prevalent. Currently, there are nine weather alerts in effect, signaling the potential for hazardous conditions. Key alerts include: ...

Having just come off our first nor’easter early in the season, the winter ahead seems daunting. With predictions of arctic ...