El Niño Surge Could Flood Homes and Close Roads in Orange County

The city of Newport Beach declared a local emergency this week in advance of forecasted high tides. City officials are deploying staff to inspect coastal infrastructure, reinforce beach berms, and install sandbags. The move comes as ocean water levels in the region have risen 15 to 22 inches above expected norms due to El Niño and the Kelvin wave.

The National Weather Service warns that significant coastal flooding is expected in San Diego and Orange counties through Thursday. The agency predicts these conditions could close roads and inundate homes, businesses, and critical infrastructure. Further north, a stretch of coast from San Luis Obispo County to Los Angeles County may experience minor to moderate flooding, with tides reaching heights of 8 feet.

Seimone Jurjis, the Newport Beach city manager, stated that the current water level rise is driven by specific atmospheric and oceanic factors. "A foot and a half may not sound like much, but in a coastal community like ours, it can mean the difference between water staying below a seawall and water spilling into streets, garages and homes, especially during some of the highest tides of the year," Jurjis said.

The city began these preparations more than a week before the peak tide forecast. Staff are currently working across the area to secure vulnerable sites. Newport Beach is providing free sandbags to residents and has advised them to inspect low-lying areas around their properties for potential entry points.

The National Weather Service office in San Diego issued guidance for the public. "Avoid the beaches during high tides, keep farther back from the ocean than usual (waves will run much farther up the beach that expected), stay off rock walls/jetties, and make sure flood-prone property is protected this week," the agency said.

This week's forecast follows a month of extreme weather in the region. Recent events included flooding that submerged city streets and large waves that struck beachside homes. The remnants of Tropical Storm Rachel recently damaged homes, destroyed a boardwalk, and forced local residents to evacuate.

Weather models indicate a historic El Niño pattern is unfolding in the Pacific. This condition is expected to bring severe storms to California during the coming winter months.