A woman walks in the rain while crossing an intersection in San Francisco, Wednesday, Jan. 16, 2019. A series of storms dropped rain up and down the state and snow in mountain regions this week, but the latest storm could be the strongest that Northern California has seen so far this year. (AP Photo/Jeff Chiu)
Rain water gushes from a downspout in Pasadena, Calif., on Wednesday, Jan. 16, 2019, as a storm dumps on California. (AP Photo/John Antczak)
SAN FRANCISCO — The latest in a series of Pacific Ocean storms pounded California with rain and snow Thursday, prompting officials to put communities on alert for mudslides and flooding and making travel treacherous.