The polar vortex is a low-pressure area of cold winds, positioned 10 to 30 miles above the North Pole, that typically blows around the pole in a west-to-east direction (hence the term “vortex”). It’s ...

What is the polar vortex? This article explains what a polar vortex is in simple terms, how it influences winter weather in the U.S., and why meteorologists talk about it during major cold events.

During winter in the Northern Hemisphere, the polar vortex can often expand and send cold air south, often referred to as an ...

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

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

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

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

The meteorologists said the polar vortex system is set up due north of Michigan over Canada's Hudson Bay. It's at least ...

As another winter storm hits South Carolina and other regions, here's what to know about deciphering forecaster terms.

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

The polar vortex will push Artic air south, and a severe winter storm could follow. How cold will it get in Louisiana?

A snowstorm and harsh winter weather have impacted at least 177 million people across the US ...