As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms.

A severe winter storm sweeping across the central and eastern U.S. in late January 2026 is threatening states from Texas to ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S.

The polar vortex, a mass of cold air over the Arctic, is beginning its seasonal strengthening. A strong polar vortex typically keeps the coldest air locked near the North Pole. A weaker or wobbling ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

Add Yahoo as a preferred source to see more of our stories on Google. In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is ...

Thanksgiving is less than a week away which means the fall season is nearing its ends. So that means cold weather is approaching and with it comes the weather pattern known as a polar vortex. But what ...

The frigid stream of air that plunged down into the Central U.S. this week is breaking cold records from South Dakota to ...

A highly unusual disruption of the polar vortex is taking shape in the upper atmosphere this November, raising the odds of a more volatile and wintry pattern as the season ramps up. Instead of the ...