Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring ...

Snow and ice in whiteout conditions contributed to a pileup of as many as 30 cars on a major highway connecting Oregon and ...

Torrential rains from a potent atmospheric river soaked nearly the entire state of California Thursday, triggering flash ...

Following a brief lull in the stormy pattern, California residents are on track to be doused by another atmospheric river, AccuWeather ... Locations farther south like Los Angeles are facing ...

Snow and ice in whiteout conditions contributed to a pileup of more than 100 cars on a major highway connecting Oregon and Idaho, reportedly injuring several people, as a winter storm descended on the ...

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

The storm system that cut a path from Kentucky to Maryland and points farther north on Tuesday brought more than 14 inches ...

Officials are grappling with the aftermath of the atmospheric river which caused mudslides and floods, especially in areas impacted by wildfires.