Flash Flood Warning Issued for Santa Monica Mountains and Southwestern Los Angeles County
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 5 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Flash Flood Warning for southwestern Los Angeles County, including the Santa Monica Mountains and recent burn scars, effective until 2:00 PM PST.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Los Angeles, CA
- Issued
- April 6, 2026
- Issuing authority
- NWS Los Angeles/Oxnard CA
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 5 months ago; use the issuing agency's live warning service for current conditions in Los Angeles, CA.
Alert Details
The National Weather Service in Los Angeles/Oxnard has issued a Flash Flood Warning for southwestern California. This alert is classified as a severe threat with immediate urgency, as flash flooding is ongoing or expected to begin shortly.
Affected Areas
The warning covers the Santa Monica Mountains, including the Palisades and Franklin Burn Scars, and surrounding areas of southwestern Los Angeles County. Specific locations expected to experience flooding include:
- Cities and Neighborhoods: Thousand Oaks, Malibu, Woodland Hills, Encino, Santa Monica, Agoura Hills, Beverly Hills, North Hollywood, Hollywood, Universal City, Burbank, Calabasas, Brentwood, Pacific Palisades, and Bel Air.
- Parks and Landmarks: Griffith Park, Topanga State Park, Malibu Creek State Park, and the Palisades and Franklin Burn Scars.
- Transportation: Interstate 405 through the Sepulveda Pass.
What You Should Do
Residents and travelers in the warned area should take the following precautions:
- Turn around, don't drown: Do not attempt to drive through flooded roads. Most flood-related deaths occur in vehicles.
- Monitor Terrain: Be vigilant for rock slides and mud slides, especially around high terrain.
- Follow Official Guidance: Adhere to all directions provided by Emergency Management and Law Enforcement officials.
- Avoid Hazards: Stay away from small creeks, streams, and low-lying urban areas or underpasses that are prone to flooding.
Expected Conditions
Doppler radar indicates heavy rain moving across the region. Expected rainfall rates are between 0.5 and 1 inch per hour. Primary hazards include:
- Flash flooding of small creeks, streams, urban areas, highways, and streets.
- Rock and mud slides.
- Minor debris flows, particularly in and around the Palisades and Franklin Burn Scars.
Timeline
The Flash Flood Warning was issued at 10:23 AM PST on February 16 and is currently scheduled to expire at 2:00 PM PST on February 16, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (2,010 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 6, 2026.
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Common questions about this NWS weather alert.