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

What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with ...

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

About 230 million people will face temperatures of 20 degrees or colder and about 150 million likely will be hit by snow and ...

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