Coastal flooding expected at prone low-lying coastal locations across the San Francisco Bay shoreline during peak high tide cycles. Coastal flooding expected at prone low-lying coastal locations across the San Francisco Bay shoreline during peak high tide cycles. Allow extra travel time as some road may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. For more info on King Tide: https://oceanservice.noaa.gov/facts/kingtide.html.