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Photo of water passing between low-lying marshlands, with the rest of the bay and eastern mountains visible in the distance
View from the Baylands Observation Deck and Boardwalk in Palo Alto on August 12, 2024. Photo by Devin Roberts.

The National Weather Service issued a Coastal Flood Advisory for all bay-front shorelines on the Peninsula through 5 p.m. Thursday, warning of high tides one foot above normal. 

This could mean bay water spilling over coastal trails and properties at high tides, which could close roads or cut off access to sea-level beaches and trails. Impacted areas include Redwood Shores, Bair Island, Palo Alto Baylands Nature Preserve and Mountain View’s Shoreline Park.

NWS meteorologist Dial Hoang said the weather service is not expecting the flood water to reach inland or travel very far up water ways, like the San Francisquito Creek. 

“If you’re right along the coast, you should prepare to see some water over coastal trails or perhaps parking lots, but we’re not expecting widespread road closures,” Hoang said. 

High tide is expected to be at about 3:02 a.m. and 2:23 p.m. Tuesday, 4:04 a.m. and 3:03 p.m. Wednesday, and 5:17 a.m. and 3:51 p.m. Thursday according to National Oceanic and Atmospheric Administration’s tidal forecast, though exact timing varies by about 90 minutes along the Bay Area. The alert says on top of the extra foot of flood water, there could be an extra 0.7 foot surge. 

Hoang said officials are not expecting the flood to reach a “king tide” height — a colloquial reference to the year’s highest tides — but that flooding may worsen this winter, as meteorologists across California track the signs for El Niño’s winter storms.

B. Sakura Cannestra is a general assignment reporter for Embarcadero Media Foundation’s four Peninsula outlets: Redwood City Pulse, The Almanac, Palo Alto Weekly and Mountain View Voice. She has a...

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