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 ...

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

Your January to March outlook is here and if you like the weather that we’re ending 2025 with, you’ll like this forecast.

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 ...

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