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    Warnings - San Ramon

    World / United States / California / San Ramon

    37°45'N / 121°57'W / Altitude 134 m / 10:54 2026/11/09, America/Los_Angeles (UTC-8)

    fog

    Dense Fog Advisory issued November 9 at 8:55AM PST until November 9 at 11:00AM PST by NWS San Francisco CA

    From: 2026/11/09, 08:55
    To: 2026/11/09, 11:00

    * WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...San Francisco and San Francisco Bay Shoreline. * WHEN...Until 11 AM PST this morning. * IMPACTS...Hazardous driving conditions due to low visibility.

    • Contra Costa
    • If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
    • NWS San Francisco CA
    • 2026/11/09, 08:55
    flood

    Coastal Flood Advisory issued November 8 at 7:50PM PST until November 13 at 4:00PM PST by NWS San Francisco CA

    From: 2026/11/08, 19:50
    To: 2026/11/09, 13:00

    * WHAT...Up to 1.6 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bayshore locations along the San Francisco Bay and San Pablo Bay. * WHEN...Until 4 PM PST Friday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. * ADDITIONAL DETAILS...At the San Francisco tide gauge, high tide is expected to be: 1.5 ft above normal (7.3 ft MLLW) at 10:35 AM Monday 11/9, 1.5 ft above normal (7.3 ft MLLW) at 11:04 AM Tuesday 11/10, 1.4 ft above normal (7.2 ft MLLW) at 11:35 AM Wednesday 11/11, 1.3 ft above normal (7.1 ft MLLW) at 12:10 PM Thursday 11/12, 1.1 ft above normal (6.9 ft MLLW) at 12:49 PM Friday 11/13. These predictions include up to 1.4 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

    • Contra Costa
    • 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.
    • NWS San Francisco CA
    • 2026/11/08, 19:50