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

Cooler, wet weather is forecast to bring moisture to the parched landscape and reduce the fire threat. But heavy rainfall could also trigger flash floods in burn scars.

Mudflows prompted the closures of at least some roads, including in Topanga Canyon and on parts of the Pacific Coast Highway.