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

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

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

Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of ...

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

Starting Thursday, dangerously frigid air from Siberia and the North Pole is forecast to plunge the Great Lakes region into ...

The incoming Arctic blast will bring very cold temperatures to West Michigan, but it still falls short of the historic, ...

It exists all the time, but it usually gets stronger in winter. When the jet stream (a river of wind) bends and dips south, ...

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

Cold temps are not uncommon in January, but the polar vortex-related extremes the Elgin-area will see Friday are downright ...

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee.

When the polar vortex breaks, Artic air come south. Here's what to know right now.