LOS ANGELES, Calif. – Heavy rain and isolated thunderstorms are drenching Southern California overnight, triggering a Flood Watch and a Severe Thunderstorm Watch across Los Angeles, Ventura, and Santa Barbara counties through early Tuesday. The National Weather Service in Oxnard warns of flash flooding and debris flows near recent wildfire burn scars as rainfall intensifies into the morning commute.
According to the National Weather Service Los Angeles/Oxnard office, rainfall totals between three-quarters and one inch are possible, with localized rates up to one inch per hour under thunderstorms. The heaviest downpours are expected before dawn Tuesday, tapering to light showers by afternoon. Peak gusts of 25 to 35 mph could down small branches and reduce visibility on I-5, US-101, and Highway 33.
Officials say areas around the Gifford, Hurst, and Eaton burn scars face the highest debris flow potential. Urban flooding may occur in low-lying intersections from Long Beach to Pasadena. Motorists are urged to avoid driving through flooded roads and to monitor Caltrans alerts for closures or lane restrictions.
The Los Angeles County Office of Emergency Management advises residents to secure outdoor items, charge electronics, and be prepared for potential power outages overnight. Once the system exits, skies clear rapidly — with sunshine and milder afternoons returning by midweek.
Five-Day Forecast for Los Angeles, CA:
Tue: 63/53 – Showers early, breezy; slight thunder risk, clearing late.
Wed: 67/51 – Sunny, calm; warming trend begins.
Thu: 74/54 – Mostly clear and mild; pleasant fall day.
Fri: 76/56 – Sunny and warmer; light afternoon breeze.
Sat: 78/58 – Bright and dry; ideal for outdoor events.
