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

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

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

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

A polar vortex disturbance will drive a winter storm in Kentucky, with snow, frigid temps, and wind chills below zero ...

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

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

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

Parts of Canada are about to experience extreme cold thanks to a polar vortex. But what is a polar vortex? CBC Kids News ...

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.

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

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