The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to blame for ...

As a major winter storm batters the Midwest and East Coast, the National Weather Service is warning a destructive windstorm could hit Southern California.

Forecasters are warning of another winter storm that could come on the heels of Winter Storm Blair, the remnants from which ...