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Tsunami warning in effect for San Francisco Bay area until 10:31 a.m. PDT

National Weather Service issues tsunami warning for San Francisco and nearby bays until mid-morning with safety advice.

Oct 21, 2026, 9:34 AM By the Genius Eye newsroom (Weather Desk) · Fact-checkedHow we report
Photo: Christian Mehlführer, User:Chmehl / CC BY 2.5, via Wikimedia Commons

The National Weather Service issued a tsunami warning for the San Francisco Bay area and surrounding regions starting at 9:31 a.m. PDT and lasting until 10:31 a.m. PDT, according to the National Tsunami Warning Center.

The warning covers multiple areas including San Pablo Bay, Suisun Bay, the West Delta, San Francisco Bay north and south of the Bay Bridge, the San Francisco Peninsula Coast, and the San Francisco Bay Shoreline.

Residents and visitors in the affected zones are advised to follow safety guidance issued by the National Weather Service, which generally includes moving to higher ground and avoiding the shoreline during the warning period.

This alert is part of a broader warning that also includes coastal areas in Southern California, Central Coast, Northern California, and parts of the Pacific Northwest, highlighting the extensive reach of the tsunami threat.

The warning will remain in effect until 10:31 a.m. PDT, after which authorities will provide updates or cancellations as appropriate.

Sources
  1. National Weather Service: TEST Tsunami Warning issued October 21 at 9:31AM PDT until October 21 at 10:31AM PDT by NWS National Tsunami Warning Center
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