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Exceptionally High Tides Prompt Flood Warnings and Sand-Replenishment Efforts Along Southern California
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Elevated Tides and Immediate Flood Risk
Newport Beach officials warned that a tide gauge near Balboa Island recorded a water level of 7.6 feet on a recent Saturday—almost 2 feet above the forecast. City leaders said the next series of high tides could push water up to 9 feet above normal, threatening waterfront homes and low-lying neighborhoods. Mayor Lauren Kleiman posted an advisory urging residents to stay alert as the city prepares for the anticipated surge.
Recent Impacts and Protective Actions
The warning follows flooding on the Balboa Peninsula that inundated streets and prompted emergency response. In Long Beach, a wave struck a seawall on September 7, 2026, damaging beachfront homes and the boardwalk. In response, Newport Beach has deployed dozens of trucks for sand-replenishment, reinforced sand berms, placed sandbags near vulnerable seawalls, and readied pumps and tide-control infrastructure. Crews are also reinforcing protective sand berms and preparing additional mitigation measures as the region approaches the El Niño season, which can heighten coastal storm activity.
Official Alerts and Service Interruptions
The National Weather Service issued a coastal flood advisory for Los Angeles, Ventura, Santa Barbara, and San Luis Obispo counties covering the period from early Sunday to mid-Thursday during the last week of October 2026. A coastal flood warning was also released for Orange and San Diego counties. Because of the expected conditions, Metrolink suspended service between the Laguna Niguel/Mission Viejo and Oceanside stations beginning the following Monday. Residents have been instructed to avoid newly constructed sand berms, stay clear of active work zones, and expect limited beach access while mitigation continues.
Outlook and Resident Guidance
Officials emphasized that the combination of exceptionally high tides, a potential tropical storm, and the upcoming El Niño season creates a heightened risk of coastal flooding. Residents in waterfront and low-lying areas are advised to prepare for possible inundation, follow official advisories, and cooperate with ongoing sand-replenishment and sand-bagging efforts aimed at protecting homes and infrastructure.