Areas where the Palisades, Franklin, Eaton, Bridge, and Hughes wildfires burned are under a flood watch, the weather service said Sunday. Fresh burn scar areas stand at greater risk of mudslides because they no longer have trees and vegetation providing support to the land, according to AccuWeather Meteorologist Jacob Hinson.

LOS ANGELES (AP) — More rain fell Monday on parts of Southern California after causing mudflows over the weekend, helping firefighters but boosting the risk of toxic ash runoff in areas scorched by Los Angeles-area wildfires.

Rain falling on Southern California is expected to aid firefighters mopping up multiple wildfires. But potentially heavy downpours on charred hillsides could bring new troubles such as toxic ash runoff.

The Los Angeles area is preparing for its first rain since wildfires first broke out weeks ago. But too much rain at once could bring its own set of significant issues.

Weekend rains could bring some relief to Southern California. Here's the forecast and an assessment of how much it will help reduce fire risk.

The mountains and foothills of Los Angeles County are in “extreme drought” conditions, about 36% of the county, explained Pugh. That’s one category shy of hitting the highest level, “exceptional drought,” and three higher than the lowest, “abnormally dry.” The rest of the county is in severe drought.

On Sunday at 10:11 a.m. a special weather statement was issued by the NWS Los Angeles/Oxnard CA in effect until 10:45 a.m. The alert is for Malibu Coast, Los Angeles, Palos Verdes Hills and Eastern Santa Monica Mountains Recreational area.

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.

With parts of Los Angeles County still smoldering from wildfires, the expected rain this weekend would seem like a welcome relief. But how the rain falls could make the difference between a disaster respite or a disaster repeat.

Cooler temperatures and the forecast of weekend rain have residents in recent burn areas preparing for the potential of debris flows.

A wet pattern will bring periods of rain and showers to Southern California, dropping an inch or two in the Los Angeles region — the most to fall since mid-April. It will be key for firefighters continuing to battle flames.