Firefighter/paramedic Patrick Young with the Southern Marin Fire Department looks out over the aftermath of a mudslide that destroyed three homes on a hillside in Sausalito, Calif., Thursday, Feb. 14, 2019. The National Weather Service says the atmospheric river sagged southward from Northern California overnight and is pointed at the southwestern corner of the state early Thursday. [Photo: AP]"

Southern Marin Fire Department members search a crushed house in the aftermath of a mudslide that destroyed three homes on a hillside in Sausalito, Calif., Thursday, Feb. 14, 2019. Waves of heavy rain pounded California on Thursday, filling normally dry creeks and rivers with muddy torrents, flooding roadways and forcing residents to flee their homes in communities scorched by wildfires. [Photo: AP]"

Water rushes down the stairs of a house near a mudslide that destroyed three homes on a hillside in Sausalito, Calif., Thursday, Feb. 14, 2019. Waves of heavy rain pounded California on Thursday, filling normally dry creeks and rivers with muddy torrents, flooding roadways and forcing residents to flee their homes in communities scorched by wildfires. [Photo: AP]"