A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

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

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

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

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.

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

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

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south. The center of this ...

Large swaths of the United States will get an arctic blast this week, leading to heavy snow, sleet, and freezing rain in ...

Winter has settled in for the long haul, and the next few days only reinforce that feeling. Tonight brings mostly cloudy ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...