Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

Tuesday’s geomagnetic storm lit up skies across the US with dazzling auroras. Another wave could bring the show back tonight.

Intense lake-effect snow is creating dangerous travel conditions in the Great Lakes and it’s all being fueled by a record ...

(CNN) — The two massive tropical systems swirling off the Southeast coast are a stark reminder that the potential government shutdown looms during the middle of the Atlantic hurricane season. Weather ...

(CNN) — A serious flood threat is on tap for some of the driest areas of the United States as an ailing former Hurricane Priscilla combines with another storm system to create a long-lasting rainfall ...

A strong Pacific storm is bringing soaking rain to Southern California, increasing the risk of life-threatening flooding, mudslides and debris flows, especially near burn scars in the Los ...