NewsKTLA 5October 24, 2026Los Angeles County
National Weather Service issues coastal flood warnings and advisories across Southern California for exceptionally high tides
Photo: KTLA 5
The National Weather Service issued coastal flood warnings and advisories across six Southern California counties from Sunday through Thursday due to exceptionally high tides expected to raise ocean levels up to 1.7 feet above normal. The conditions threaten to flood homes and roads, accelerate beach erosion, and damage vulnerable oceanfront properties. The threat has also prompted Metrolink to suspend a portion of its Orange County Line.
Read the full story at KTLA 5Why It Matters
Residents in low-lying coastal areas face potential road closures, property inundation, and structural damage, while commuters along a suspended section of the Metrolink Orange County Line must find alternate transportation.
Key Facts
- The National Weather Service issued coastal flood warnings for Orange and San Diego counties and advisories for Los Angeles, Ventura, Santa Barbara, and San Luis Obispo counties from 5 a.m. Sunday through 1 p.m. Thursday.
- Ocean levels could rise as much as 1.7 feet above predicted tides in Orange and San Diego counties.
- Los Angeles County coast tides are expected to reach 7.5 to 8 feet, with peak levels forecast Monday through Wednesday.
- Eight structures encompassing 13 addresses on the Long Beach Peninsula have been red-tagged following previous coastal damage.
- Long Beach is undertaking an $11.4 million beach restoration project dredging 415,000 cubic yards of sand from Alamitos Bay, scheduled for completion in February.
- Seal Beach is building its seasonal sand berm earlier, taller, and wider than usual and positioning water pumps.
- Newport Beach is reinforcing the Balboa Peninsula with sand and relocating sediment from the Santa Ana River mouth.
- Los Angeles Harbor water levels are projected to reach 7.7 feet Sunday, 8 feet Monday, 8.1 feet Tuesday, 8 feet Wednesday, and 7.8 feet Thursday.
- Metrolink suspended Orange County Line service between Laguna Niguel/Mission Viejo and Oceanside stations from Monday, Oct. 26, through Friday, Oct. 30, with normal service resuming Saturday, Oct. 31.
- An emerging El Niño pattern raises the possibility of additional storms, coastal erosion, and higher astronomical tides around Thanksgiving and Christmas.
Who's Mentioned
locationNewport Beach“Reinforcing beaches and Balboa Peninsula with sand and sandbags.”locationSan Diego County“Received coastal flood warnings anticipating significant coastal flooding.”locationLaguna Niguel/Mission Viejo“Station where Metrolink service is temporarily limited.”OrganizationMetrolink“Suspended Orange County Line service between Laguna Niguel/Mission Viejo and Oce”locationAlamitos Bay“Entrance channel from which sand is dredged for beach restoration.”PersonCarlos Herrera“KTLA reporter who reported Saturday morning from the Peninsula.”locationBalboa Peninsula“Vulnerable stretches being reinforced with sand and sandbags.”locationSanta Ana River“River mouth from which sediment is relocated to replenish eroded beaches.”locationSanta Barbara“Covered by coastal flood advisories.”locationOceanside“Southern terminus of the suspended Metrolink segment.”OrganizationKTLA“Reported on the coastal conditions and local preparations.”locationLos Angeles Union Station“Northern terminus for trains continuing to operate on the Orange County Line.”OrganizationNational Weather Service“Issued coastal flood warnings and advisories for Southern California counties.”locationSeal Beach“Accelerating construction of its seasonal sand berm.”locationOrange County“Received coastal flood warnings and experienced service suspensions on Metrolink”locationLong Beach Peninsula“Heavy machinery moving sand and residents placing sandbags.”locationLos Angeles“Covered by coastal flood advisories.”PersonJennifer McGraw“KTLA reporter covering Seal Beach preparations.”locationVentura“Covered by coastal flood advisories.”locationLong Beach“Crews are working around the clock to reinforce the shoreline; structures red-ta”locationLos Angeles Harbor“Projected water levels reaching 7.7 to 8.1 feet.”locationSan Luis Obispo“Covered by coastal flood advisories.”