The highest intensity rain was expected between 4 p.m. on Sunday and 4 p.m. on Monday, according to the service. Los Angeles and Ventura Counties were expected to get up to an inch of total rainfall, and up to three inches was forecast in the mountains around Los Angeles.

Rainfall brings relief to wildfire-ravaged Southern California but raises new concerns about toxic ash runoff and debris flows in burn areas.

Some areas could get more than a half-inch of rain an hour later Sunday, the National Weather Service said. Showers could linger into Tuesday. Areas where the Palisades, Franklin, Eaton, Bridge,