Coastal Flood Advisory Issued for Bay Area Through Sunday Afternoon

The National Weather Service has issued an updated coastal flood advisory for much of the Bay Area, warning of minor flooding along shorelines and tidal waterways through Sunday at 3 p.m. The advisory covers the North Bay Interior Valleys, San Francisco Bay Shoreline, Northern Monterey Bay, Big Sur, and San Francisco County.

According to the NWS, up to 1.7 feet of inundation is possible in low-lying coastal areas. High tides at the San Francisco tidal gauge are expected to peak at 7.51 feet late Saturday morning—1.7 feet above normal—with slightly lower but still elevated tides on Sunday. High tide timing will vary across the Pacific Coast and San Francisco Bay.

The NWS warns that visitors should expect flooding in parking lots, parks, shoreline paths, and some roadways, though widespread road closures are not anticipated. Drivers are urged not to go around barricades or attempt to pass through floodwater.

If you live or camp in a low-lying area, move to higher ground. Never walk through floodwaters—six inches of moving water can knock you off your feet—and avoid basements or rooms where water may have reached electrical outlets. If you hear buzzing or see sparks, leave immediately.

On the road, keep your headlights on, avoid puddles, and stay in middle lanes where water collects less frequently. Remember: just 12 inches of flowing water can sweep away most cars. If a road is flooded, turn around—don’t risk it.

The advisory remains active through Sunday afternoon as tides and rainfall increase flooding potential across the region.