Moderate Storm Surge ● Active
Beach Hazards Statement issued October 31 at 5:58PM PDT until November 3 at 8:00PM PST by NWS San Francisco CA, United States of America
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* WHAT...For the Coastal Flood Advisory, Up to 1.5 ft of
inundation above ground level is possible in low-lying areas
near shorelines and tidal waterways. For the Beach Hazards
Statement, An increased risk for sneaker waves and strong rip
currents.
* WHERE...San Francisco, Northern Monterey Bay and Southern
Monterey Bay and Big Sur Coast Counties.
* WHEN...For the Coastal Flood Advisory, until 6 PM PDT Sunday.
For the Beach Hazards Statement, from late Sunday night
through Tuesday evening.
* 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. Waves
can sweep across the shoreline without warning, pulling people
into the sea from beaches, jetties, and rocks.
* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.0 ft above normal (6.8 ft MLLW) on Sunday
11/01 at 3:59 PM. These predictions include up to 1.5 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.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | San Francisco; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-11-01T01:00:00-08:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportAlso reported by: WMO
This event as JSON · API and licence
Source updated 1 hour ago (Nov 1, 2026 00:59 UTC) · we last heard from WMO Alert Hub (national weather services) 9 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: San Francisco; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Understanding surge zones, evacuation timing, and why storm surge is the deadliest part of a tropical cyclone.
Open Storm Surge Safety Guide →Earlier storm surge events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.