A storm is dropping rounds of heavy rain on more than 22 million people across Southern California on Saturday, and the rainfall could spark dangerous flash flooding, mudslides and debris flows. The first round of heavy rain is slamming the region early Saturday morning, and the second round will hit between 11 a.m. and 4 p.m. local time.

An unusually strong storm system called an atmospheric river was dousing Southern California on Saturday, prompting flood warnings in areas of coastal Los Angeles County that recently were ravaged by ...

The California Highway Patrol said a 71-year-old man died Friday after his vehicle was swept off a flooded bridge in Northern California, and a 5-year-old was swept into the ocean by 15-foot (4.6-mete...