Los Angeles County's first significant storm in more than eight months has already forced the closure of the 5 freeway at the Grapevine, unleashed mud on roadways, and triggered the closure of Malibu's public schools Monday due to dangerous road conditions.

The National Weather Service has issued a flash flood warning for Malibu near the Franklin Fire and Palisades Fire burn scars through Sunday evening as heavy rain moves through the region. Officials reported flooding along Pacific Coast Highway due to the rain at around 8:15 p.

The National Weather Service in Los Angeles issued a flash flood warning for the Franklin burn scar and the western portion of the Palisades burn scar, west of Los Flores Canyon until 11 p.m. Sunday night.

While wet weather is often welcomed in the region, residents and first responders were on high alert for possible mudslides and land movement in recent burn scar areas including Pacific Palisades, Malibu,

Officials closed part of Pacific Coast Highway in the Palisades fire area on Sunday, Caltrans said, as rain poured down across the Los Angeles area and burn scars in Southern California were under a flood watch that will last until 4 p.m. Monday, according to the National Weather Service.

Residents and first responders were on high alert for possible land movement in recent burn scar areas as a winter storm moves in.

LOS ANGELES (KABC) -- A flash flood warning has been issued for the Palisades and Franklin burn areas as the National Weather Service warned that "life-threatening debris flow" could be possible. The flash flood warning was issued at 7:40 p.m. and will remain in effect until 11 p.m. on Sunday.

The Palisades Fire, which has burned 23,448 acres over the past 19 days, is now 87% contained, according to the latest update from CAL FIRE. A crew of 1,859 firefighters remains on-site, utilizing 151 engines,

Fueled by powerful winds and dry conditions, a series of ferocious wildfires erupted the second week of January and roared across the Los Angeles area.

The most serious red flag fire weather warning has been issued by the NWS for swaths of L.A. and Ventura counties starting before dawn Tuesday.

It occurred at about 11:05 p.m. about 10 miles northwest of Malibu, according to the United States Geological Survey​

As winds across the Southern California area are calmer than their peak and firefighters are making progress, the threat to the fire-weary region remains with Santa Ana winds expected to continue in the coming days.