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

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

It has been a warm autumn so far. But the polar vortex is forecast to change unusually early, and that could impact your weather in December. Meteorologist Rob Shackelford breaks down why. Fantasy ...

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

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is likely to expand from central Canada and through the midwestern and eastern ...

Bundle up. This weekend will get seriously cold. The planet's most extreme cold air will be barreling into the central and eastern United States this coming weekend "like a wrecking ball," said ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...

ORLANDO, Fla. – Polar vortex. Sudden stratospheric warming. The winter buzz words are back. But what do they mean? Here’s the deal. You may hear polar vortex and sudden stratospheric warming thrown ...