Coastal Flood Advisory

Locations Affected

San Francisco, CA ∙ Fremont, CA ∙ Oakland, CA ∙ Santa Rosa, CA ∙ Hayward, CA ∙ Sunnyvale, CA ∙ Richmond, CA ∙ Berkeley, CA ∙ San Mateo, CA ∙ Daly City, CA

Full Alert Message

Coastal Hazard Message National Weather Service San Francisco CA 1257 AM PDT Wed Jul 23 2025 ...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 2 AM PDT THURSDAY... ...COASTAL FLOOD ADVISORY WILL EXPIRE AT 1 AM PDT EARLY THIS MORNING... * WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...From 9 PM this evening to 2 AM PDT Thursday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Up to one foot inundation above ground level is possible in low lying areas near shorelines and tidal waterways. At the San Francisco tidal gauge high tide is expected to be 1.08 feet above normal (6.92 ft MLLW) at 10:50 PM PDT Wednesday. High tide timing varies up to 2 hours earlier or later along the coast and throughout the Bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

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