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

A winter storm descending on the US is expected to deliver heavy snow and ice to more than 150 million people across roughly ...

What is the polar vortex? This article explains what a polar vortex is in simple terms, how it influences winter weather in ...

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

After this weekend's snow storm moves out, cold Arctic air will move in.

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

Every year, the winter buzzwords start to fly before we set the Thanksgiving table. And who doesn't love feasting on the polar vortex? Everyone's favorite (or favorite to hate) phenomenon spins up in ...

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

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

The polar vortex is beginning its seasonal strengthening, signaling a gradual shift toward cooler weather. Frost advisories were issued in parts of the Great Lakes region, New York, and New England as ...