Los Angeles County Mudslides, debris flows and heavy rains hit the county.
Heavy rains Thursday night have caused significant mudslides and debris flows in parts of Los Angeles County. Recent weather events pose a significant threat to areas that have been affected by wildfires.
Wildfire burn scar areas and increased risk
Southern California experienced devastating wildfires, such as the Palisades Fire or the Eaton Canyon Fire in January. These wildfires scorched huge areas of land and destroyed numerous buildings, forcing extensive evacuations. These “burn scars” are particularly susceptible to mudslides, debris flows, and landslides due to their lack of vegetation.
Current Situation: Road Closures and Emergency Reactions
California Highway Patrol Newhall (CHP Newhall) reported a major mudslide that blocked lanes near Roxford Street on Highway 210, causing traffic delays for approximately an hour. It is urged that drivers seek alternative routes and remain informed about road conditions.
The Los Angeles Fire Department responded to an “large” debris stream at 7123 W. Mulholland Dr., which resulted in the closure of the entire road. Mulholland drive was covered in 8 inches of debris. The stability of the homes that were above the debris flows has been determined by firefighters.
Caltrans District 7 in California has declared a “hard closure” of the Pacific Coast Highway from Chautauqua Boulevard to Carbon Beach Terrace because of flooding and mudslides. Caltrans has been responding actively to the flooding of highways as well as hazardous road conditions across the region. The California Department of Transportation (Caltrans) advises motorists to avoid unnecessary driving, slow down, and keep an eye out for road workers.
National Weather Service Los Angeles (NWS Los Angeles) issued a Flash Flood Warning for Los Angeles and Santa Clarita. The warning highlighted the risk of widespread flooding and debris flow.
Official statements and rainfall totals
California Governor Gavin Newsom responded to the storm via Twitter, encouraging residents to obey all local emergency and evacuation instructions and use preparedness tools available on Ready.CA.Gov.
Smith, a local weather expert, said that the total rainfall varies across the area. According to Smith the Los Angeles basin received 1.25 to 2 1/2 inches. Valley and Foothills experienced 2.5 to 3 5/8 inches and mountains recorded 4.5-6 inches. By morning, the heaviest rain is predicted to have subsided.
Watching the Weather: Forecasts for Tomorrow and Monitoring of Conditions
According to the NWS, the storm will leave the Los Angeles region by the weekend. The NWS continues to monitor closely the situation in particular burn scars and is prepared to intervene if there are any more incidents of mudslides or debris flow.