Flood watches were in effect for burn areas from recent fires that broke out around the Pacific Palisades neighborhood in Los Angeles, Altadena and Castaic Lake.

Rain brought much needed aid to the Los Angeles firefight, moving the fires surrounding the city closer to containment.

Rain on the way to parched Southern California on Saturday will aid firefighters mopping up multiple wildfires. But heavy downpours on charred hillsides could bring the threat of new troubles like toxic ash runoff.