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Updated:October 31, 2026 10:15 pm PDT

Coastal Flood Advisory COASTAL FLOOD ADVISORY  
San Francisco County

Effective: Sat, 10/31 5:58pm Severity: Minor
Updated: October 31, 2026 10:15 pm Urgency: Expected
Expires: Sun, 11/1 1:00am Certainty: Likely

Areas Affected: San Francisco - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast
 
Alert Details:
* 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.

Information:
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.

Stay off of jetties, piers, rocks, and other waterside
infrastructure. Remain out of the water to avoid hazardous surf
and NEVER turn your back on the ocean. Monitor local weather,
surf and tide forecasts at www.weather.gov/mtr.
Beach Hazards Statement BEACH HAZARDS STATEMENT  
San Francisco County

Effective: Sat, 10/31 5:58pm Severity:  Moderate 
Updated: October 31, 2026 10:15 pm Urgency: Expected
Expires: Sun, 11/1 1:00am Certainty: Likely

Areas Affected: San Francisco - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast
 
Alert Details:
* 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.

Information:
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.

Stay off of jetties, piers, rocks, and other waterside
infrastructure. Remain out of the water to avoid hazardous surf
and NEVER turn your back on the ocean. Monitor local weather,
surf and tide forecasts at www.weather.gov/mtr.