A coastal flood warning covers the beaches of San Luis Obispo County and Santa Barbara County’s Central Coast from 3 a.m. to 6 p.m. Saturday, Nov. 14. The National Weather Service expects seawater to reach some roads and walkways, with widespread flooding likely at Oceano Dunes. Beach camping there has been canceled through Sunday, Nov. 15, according to KMPH, which reported the California State Parks decision Thursday.

When the surf gets worse

The National Weather Service bulletin calls for breaking waves of 10 to 15 feet through Friday evening. A high surf warning starts at 9 p.m. Friday and runs through 3 a.m. Sunday, with waves of 18 to 25 feet. The Saturday flood warning falls within that longer surf warning. All times are Pacific.

Forecasters expect the largest surf on beaches facing west or northwest. Waves could reach the piers at Cayucos and Pismo Beach and break at the entrance to Morro Bay Harbor. The weather service advises staying out of the water and off piers, jetties and flooded coastal roads. Follow posted barricades, especially around high tide.

What Oceano Dunes campers should check

The cancellation applies to beach camping at Oceano Dunes State Vehicular Recreation Area. KMPH’s report says affected campers will get notices through ReserveCalifornia. Reservations that extend past the closure can keep their later dates. Campers who want to cancel the entire reservation can call 1-800-444-7275 with their cancellation notice to request a full refund.

Vehicle access for day trips may also change with conditions. The state park’s access page links to district updates and says high tides and flows in Arroyo Grande Creek can restrict beach driving. Farther north, a separate surf warning covers beaches from the Bay Area through Big Sur.