An Unusually Strong Storm System Hits Southern California, Raising Flooding Concerns

This weekend, an unusually strong storm system swept through Southern California, prompting serious flooding warnings across the region. According to the National Weather Service (NWS), the storm began affecting the area on Friday, with rain intensifying into Saturday.

Rainfall Accumulation and Flood Advisories

Since Friday, several areas have recorded significant rainfall. By Saturday afternoon, the heaviest downpours were reported, with rain accumulating across the Central Coast to San Diego County. The NWS issued flood advisories for Los Angeles and Ventura counties, which expired by 2 p.m., although advisories for coastal and valley areas from LAX to Point Conception remained in effect until 8 p.m.

As the storm progressed, the intensity of the rain decreased, yet the NWS warned that the potential for thunderstorms continues, which could lead to unpredictable rain bursts and localized flooding.

Flash Flood Warnings and Specific Areas Affected

At 8:37 a.m. Saturday, a flash flood warning was issued for parts of Los Angeles County, anticipating up to one inch of rain within a single hour. Areas including Burbank, Griffith Park, and Pasadena were specifically identified as at risk for flash flooding. Although the warning expired at noon, it was extended until 2 p.m. for certain burn scar regions and parts of the San Fernando Valley.

Rainfall totals from the previous 24 hours revealed significant precipitation across various areas, including:

• 1.74 inches in downtown Los Angeles
• 2.27 inches in Thousand Oaks
• 2.43 inches in Malibu
• 1.53 inches in Long Beach
• 1.69 inches in Burbank
• 2.36 inches in Dana Point

Evacuations and Shelter Information

Evacuation orders were issued for various homes, primarily near burn scars, but were lifted by 6 p.m. on Saturday. Residents had been warned ahead of the storm, allowing for proactive measures. Temporary evacuation warnings remained valid for specific burn scar areas until 8 p.m. Sunday, including neighborhoods near Canyon, Bethany, and Eaton.

For those evacuating, the Los Angeles County offered three shelters:

• Stoner Recreation Center – 1835 Stoner Ave., Los Angeles, 90025
• College of the Canyons – 26455 Rockwell Canyon Rd., Valencia, 91355
• Arcadia Community Park – 405 S Santa Anita Ave., Arcadia, 91006

Storm-Related Hazards and Traffic Disruptions

The storm brought several hazards and damages throughout the region:

• Topanga Canyon Boulevard faced closures due to minor debris flows, and will remain closed until the storm passes.
• Pacific Coast Highway in Huntington Beach was shut down due to flooding.
• Reports of minor flooding were noted on freeways, including the 60 Freeway.
• In Burbank, reports indicated that over 58 trees had fallen.
• South Pasadena experienced eight sinkholes on Edgewood Drive, creating hazardous conditions.
• Moreover, downed trees caused power outages in the Hollywood Hills, impacting numerous communities.

Updated damage reports from the NWS can be found here.

As the storm system continues to evolve, residents are advised to stay informed through reliable local sources and government advisories.