The bitter cold temperatures that have left a chill over the eastern half of the country aren’t going anywhere, as a major disruption to the Polar Vortex is coming this month.

Forecasters are warning that the breakdown of the polar vortex high above the Arctic will not bring relief from winter, but ...

If you've ever wondered why winter sometimes flips from mild to brutally cold, the answer might be hiding 20 miles above your head. That's where a rare atmospheric phenomenon called sudden ...

Michigan is experiencing frigid temperatures and heavy snow due to a dip in the jet stream, not the polar vortex. The polar vortex is a large-scale cyclone of cold air that typically stays far north ...