On Thursday at 4:31 p.m. the NWS Los Angeles/Oxnard CA issued an updated severe thunderstorm warning in effect until 5:30 p.m. for Los Angeles.

Los Angeles County is included in an updated report for strong thunderstorms by the National Weather Service on Thursday at 3:51 p.m. The alert is in effect until 4:15 p.m.

The strongest rainstorm of the year has hit Southern California, prompting mud and debris flows severe thunderstorm and flash flood warnings for recent burn scars. The National Weather Service has issued flash flood warnings for Eaton Fire ravaged Altadena,

As heavy rain from a large storm subsided, officials in Southern California said rock and mudslides remain a threat.

A powerful storm moved through the Los Angeles region Thursday, flooding streets, prompting evacuation warnings, and threatening mudslides in fire-ravaged areas. By Thursday evening, a debris flow had closed Mulholland Drive, which weaves through the Hollywood Hills. In Malibu, mud flowed down steep hills onto the iconic Pacific Coast Highway.

More than 100 homes were under mandatory evacuation orders in the city of Los Angeles, Jim McDonnell, the Los Angeles police chief, said Thursday morning. The Palisades fire destroyed thousands of homes in the city’s Pacific Palisades neighborhood last month, and hillsides remain vulnerable in the area.