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Extreme weather warning for US waters: Tsunami Warning, San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge
Official warning from NWS National Tsunami Warning Center for San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge; San Francisco Bay South of the Bay Bridge; San Diego County …. Valid from 17 Sep 2026, 16:30 to 17 Sep 2026, 17:30 UTC.
Extreme NAMMERT Assekuradeur GmbH
According to the issuing service, this warning has since expired.
This alert reproduces an official warning as it stood when we published it and is not updated afterwards. The issuing service is authoritative. For what applies now, see the warning map.
- Area
- San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge; San Francisco Bay South of the Bay Bridge; San Diego County Coastal Areas; Ventura Cou
- Warning
- Tsunami Warning
- Level
- Extreme
- Valid from
- 17 Sep 2026, 16:30 UTC
- Valid until
- 17 Sep 2026, 17:30 UTC
- Region
- US waters
- Issued by
- NWS National Tsunami Warning Center
What matters now
If your boat lies somewhere it can get serious, you act on the plan you made earlier, not on this page. If you have no plan, today is the day to make one.
Doubled lines, chafe protection, fenders, canvas off: half an hour of work that often decides everything. Once it starts there is no time left for it.
Photograph the boat, the lines and the surroundings before anything happens. After a storm that is the only evidence of how it looked before.
Read what your own contract says about storms and about the hurricane season. Many contracts carry their own rules for it.
When it comes to it, the instruction of the local authority and the marina applies, not what a website says.