California Storm: Mudslides & Flooding

by mark.thompson business editor

Atmospheric River Brings Relief and Risk to California after Deadly Weekend

A powerful atmospheric river storm delivered much-needed rain to California this weekend, easing drought conditions but also triggering hazardous mudslides and flooding, and tragically contributing to at least two deaths in Northern California and on the central Coast. While Southern California largely avoided major structural damage, the storm underscored the region’s vulnerability to extreme weather events, especially in areas scarred by recent wildfires.

The storm dumped 2 to 3 inches of rain across the greater Los Angeles area,with up to 6 inches in the foothills and mountains of the Transverse Ranges,and isolated areas receiving as much as 8 inches,according to Ariel Cohen,a meteorologist with the National Weather service office in Oxnard. “This was indeed a significant storm system,” Cohen stated. “And many folks experienced significant impacts, with numerous reports of flooded roadways/freeways, rockslides and mudslides.” Despite the widespread impacts, Cohen emphasized that “tremendous preparedness efforts” helped mitigate the worst potential outcomes.

Scattered showers are expected to continue through Sunday, with a slight chance of thunderstorms and the risk of flash flooding due to saturated soil.Forecasters are also monitoring two additional storms potentially headed for California – one expected Monday through Tuesday, and another Thursday through Friday. The first is predicted to bring light to moderate rainfall, while the intensity of the late-week storm remains uncertain.

Tragedy Strikes Along the Central Coast

A 51-year-old woman died Saturday after being swept out to sea by a large wave in Avila Beach, near San Luis Obispo, according to Cal Fire/San Luis Obispo County Fire Department. In Northern California, a man was killed when a tree fell on him in Sonoma County, the Sonoma County Sheriff’s Office reported.

In Southern California, the storm caused widespread road closures, including sections of Interstate 5, Highway 101, and Highway 166. Runoff along Pacific Coast Highway in malibu created hazardous driving conditions.

Crews worked throughout Saturday to clear debris, drain flooded roads, and stabilize slopes, focusing particularly on areas vulnerable to mudflows. Residential side roads, especially those in fire-affected zones, proved more challenging to manage. “It was a problem in the beginning, and of course it gets worse around here when it rains,” noted Malibu resident Adam Gorski, describing the mud and debris littering streets like Paseo Portola.

Burn Scars Remain a Key Concern

Los Angeles County officials closely monitored burn scars from the Eaton, Palisades, Bridge, Line, and Airport fires, recognizing their heightened risk for debris flows. Evacuation orders and warnings were expected to expire by 8 a.m. Sunday. Forecasters had predicted moderate roadway flooding and minor debris flows, with peak rainfall rates of 0.5 to 0.75 inches per hour. Meteorologist Joe Sirard of the weather service’s Oxnard office explained that more intense rainfall coudl have triggered more powerful and destructive debris flows.

The Los Angeles Fire department proactively deployed resources, including a 22-member strike team with five fire engines, to patrol the Pacific Palisades area, according to Fire Chief Jaime Moore.

A Silver Lining for Fire Risk

Despite the challenges, the storm offered a positive development in the ongoing battle against wildfire risk. The rainfall has considerably moistened the landscape, reducing the likelihood of blazes.This represents a marked betterment compared to 2024, when a prolonged dry spell left vegetation highly flammable and contributed to the rapid spread of the Eaton and Palisades fires – among the most destructive in California history.

Community Resilience Shines Through

Even amidst the storm, community spirit persevered. Volunteers gathered Saturday morning to begin restoring a beloved mural in the Palisades Charter High School neighborhood, damaged by the recent fires. The mural, originally painted in the early 1980s, survived the blaze with minor singe marks, but required urgent conservation work.”Through all of the devastation, there is something really gorgeous about the community coming together to protect this mural, no matter the weather,” said Davida Persaud, chief operating officer of MuralColors, a local art conservator. One volunteer, Sara Trepanier, who lost her home in the fire, emphasized the neighborhood’s strong sense of mutual support: “We all take care of each other here.”

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