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 ...

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

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

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

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

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

What travelers should know as a polar vortex heads towards the United States, including how airlines and hotels are responding, and experts on whether you should cancel your trip.

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 ...