Active Weather Alerts
Small Craft Advisory
Issued: 10:03 PM Jul. 21, 2025 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...West winds around 15 kt and choppy waters. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Coastal Flood Advisory
Issued: 4:52 PM Jul. 21, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT PDT TONIGHT... * WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...From 7 PM this evening to midnight PDT tonight. * 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 1.04 feet above normal (6.88 ft MLLW) at 9:02 PM PDT Monday. 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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