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Updated:October 8, 2026 10:45 pm PDT

Coastal Flood Advisory COASTAL FLOOD ADVISORY  
Los Angeles County

  Effective: Thu, 10/8 9:45pm Severity: Minor
  Updated: October 8, 2026 10:45 pm Urgency: Expected
  Expires: Fri, 10/9 3:00pm Certainty: Likely

Areas Affected: North Bay Interior Valleys
 
Alert Details:
* WHAT...Up to 1.4 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.

* WHERE...Bayshore locations along the San Pablo Bay.

* WHEN...Until 4 PM PDT Wednesday.

* 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.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.2 ft above normal (7.1 ft MLLW) at 11:22 AM
Friday 10/9, 1.4 ft above normal (7.3 ft MLLW) at 11:50 AM
Saturday 10/10, 1.3 ft above normal (7.2 ft MLLW) at 12:18 PM
Sunday 10/11, 1.2 ft above normal (7.1 ft MLLW) at 12:46 PM
Monday 10/12, 1.1 ft above normal (7.0 ft MLLW) at 1:14 PM
Tuesday 10/13, and 0.9 ft above normal (6.7 ft MLLW) at 1:46 PM
Wednesday 10/14. These predictions include up to 1.2 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.
Coastal Flood Advisory COASTAL FLOOD ADVISORY  
Marin County

  Effective: Thu, 10/8 9:45pm Severity: Minor
  Updated: October 8, 2026 10:45 pm Urgency: Expected
  Expires: Fri, 10/9 3:00pm Certainty: Likely

Areas Affected: North Bay Interior Valleys
 
Alert Details:
* WHAT...Up to 1.4 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.

* WHERE...Bayshore locations along the San Pablo Bay.

* WHEN...Until 4 PM PDT Wednesday.

* 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.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.2 ft above normal (7.1 ft MLLW) at 11:22 AM
Friday 10/9, 1.4 ft above normal (7.3 ft MLLW) at 11:50 AM
Saturday 10/10, 1.3 ft above normal (7.2 ft MLLW) at 12:18 PM
Sunday 10/11, 1.2 ft above normal (7.1 ft MLLW) at 12:46 PM
Monday 10/12, 1.1 ft above normal (7.0 ft MLLW) at 1:14 PM
Tuesday 10/13, and 0.9 ft above normal (6.7 ft MLLW) at 1:46 PM
Wednesday 10/14. These predictions include up to 1.2 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.
Beach Hazards Statement BEACH HAZARDS STATEMENT  
Los Angeles County

  Effective: Thu, 10/8 9:45pm Severity:  Moderate 
  Updated: October 8, 2026 10:45 pm Urgency: Expected
  Expires: Fri, 10/9 3:00pm Certainty: Likely

Areas Affected: Coastal North Bay Including Point Reyes National Seashore - San Francisco Peninsula Coast
 
Alert Details:
* WHAT...Increased risk of rip currents and sneaker waves
expected with breaking waves up to 16 feet.

* WHERE...Coastal North Bay Including Point Reyes National
Seashore and San Francisco Peninsula Coast Counties.

* WHEN...From Saturday morning through Monday afternoon.

* IMPACTS...Dangerous conditions are forecast along the shoreline.
Hazards include sneaker waves, strong rip currents, and large
breaking waves.

Information:
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  
Marin County

  Effective: Thu, 10/8 9:45pm Severity:  Moderate 
  Updated: October 8, 2026 10:45 pm Urgency: Expected
  Expires: Fri, 10/9 3:00pm Certainty: Likely

Areas Affected: Coastal North Bay Including Point Reyes National Seashore - San Francisco Peninsula Coast
 
Alert Details:
* WHAT...Increased risk of rip currents and sneaker waves
expected with breaking waves up to 16 feet.

* WHERE...Coastal North Bay Including Point Reyes National
Seashore and San Francisco Peninsula Coast Counties.

* WHEN...From Saturday morning through Monday afternoon.

* IMPACTS...Dangerous conditions are forecast along the shoreline.
Hazards include sneaker waves, strong rip currents, and large
breaking waves.

Information:
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.