Southern California experienced rainfall on Sunday, with scattered showers expected to continue into Monday. While the rain may help firefighters battle ongoing wildfires, it also poses a significant risk of mudslides and toxic ash runoff in areas recently burned by fires.
The National Weather Service issued flood watches for burn areas in neighborhoods such as Pacific Palisades, Altadena, and Castaic Lake until 4 p.m. Monday. Meteorologist Joe Sirard warned that even small amounts of rain could lead to dangerous mud and debris flows in these regions, making them highly vulnerable.
On Sunday afternoon, a section of the Pacific Coast Highway in Los Angeles County was closed due to mudflows in Topanga Canyon. Meanwhile, parts of Ventura County faced flood advisories, and mountain regions were expected to see snowfall.
Despite the risks, the rain offers some relief for firefighters working to contain several wildfires that broke out after weeks of dry, windy weather. Crews in Los Angeles County spent the past week reinforcing slopes, clearing vegetation, and repairing roads in areas devastated by the Palisades and Eaton fires.
The Palisades Fire, which destroyed thousands of homes and claimed 11 lives, was 90% contained as of Sunday. The Eaton Fire near Altadena, responsible for 16 deaths, reached 98% containment. Progress was also reported on the Hughes Fire, which led to evacuation orders for over 50,000 people. It was 95% contained by Sunday evening. In San Diego County, crews worked to control the smaller Border 2 Fire near the U.S.-Mexico border.
Forecasters predicted about an inch of rain across the region over several days. However, localized downpours could trigger dangerous debris flows, particularly in burn areas. Meteorologist Carol Smith explained that if heavy showers settle over these areas, the risk of mudslides increases significantly.
Local officials have taken steps to address these risks. Los Angeles Mayor Karen Bass issued an order to speed up cleanup efforts and reduce fire-related pollution. LA County also approved emergency measures to install flood-control systems and remove sediment from burn zones.
Fire crews have been filling sandbags, setting up barriers, and clearing drainage systems. Residents in affected areas were urged to wear protective gear while cleaning up ash, as it contains hazardous materials like asbestos, lead, and plastics.
The region’s rainfall breaks a near-record dry spell, with Southern California having received less than 5% of its average rainfall since October. While the rain offers much-needed relief, it also serves as a reminder of the challenges that follow wildfire disasters.
