Special Weather Statement
Status
Issued ExpiredStart Time
Wed 07/30/2025 08:27 AM EDTEnd Time
Wed 07/30/2025 02:30 PM EDTImpacts
Informational
Locations Affected
Oakland, CA ∙ San Francisco, CA ∙ Fremont, CA ∙ Sunnyvale, CA ∙ Hayward, CA ∙ Santa Rosa, CA ∙ San Mateo, CA ∙ Richmond, CA ∙ Berkeley, CA ∙ Daly City, CAHeadline
...TSUNAMI ADVISORY IS IN EFFECT FROM THE SONOMA COASTLINE DOWN THROUGH THE BIG SUR COASTLINE INCLUDING SF AND MONTEREY BAY...
Full Alert Message
Special Weather Statement National Weather Service San Francisco Bay Area 527 AM PDT Wed Jul 30 2025 ...TSUNAMI ADVISORY IS IN EFFECT FROM THE SONOMA COASTLINE DOWN THROUGH THE BIG SUR COASTLINE INCLUDING SF AND MONTEREY BAY... * UPDATES...Observed tsunami wave heights have increased. * LOCAL IMPACTS...Dangerous currents and fast tidal swings will persist through the morning due to impacts from an ongoing tsunami event. These conditions are hazardous to swimmers, boats, and coastal structures. Widespread inundation is NOT expected. However, damage at the harbors is possible. Surging water in and out of harbors and changing water levels can cause boats and docks to detach from structures. * RECOMMENDED ACTIONS...If you are located in this coastal area, move off the beach and out of harbors and marinas. Do not go to the coast to watch the tsunami. Be alert to instructions from your local emergency officials. Tsunamis often arrive as a series of waves or surges which could be dangerous for many hours after the first wave arrival. The first tsunami wave or surge may not be the highest in the series. * OBSERVED TSUNAMI WAVE HEIGHTS FROM EARLIER... San Francisco 1.2 ft at 0224 AM PDT on Jul 30 Point Reyes California 2.6 ft at 0423 AM PDT on Jul 30 Monterey California 1.5 ft at 0424 AM PDT on Jul 30 Richmond California 0.8 ft at 0241 AM PDT on Jul 30 Alameda California 1.2 ft at 0247 AM PDT on Jul 30 Redwood City California 0.6 ft at 0425 AM PDT on Jul 30 * PRELIMINARY EARTHQUAKE INFORMATION... An earthquake occurred at 425 PM PDT on Jul 29 2025, with a preliminary magnitude of 8.8 centered 315 miles SW of Bering Island, Komandorski at a depth of 46 miles. This product will be updated as new information becomes available. Stay tuned to your local news source and NOAA weather radio for further information and updates.
Technical Header
CAZ006-505-506-508-509-529-530-301830- San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-San Francisco Bay Shoreline- San Francisco Peninsula Coast-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 527 AM PDT Wed Jul 30 2025