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Updated:October 7, 2026 5:15 pm PDT

Coastal Flood Advisory COASTAL FLOOD ADVISORY  
San Francisco County

  Effective: Wed, 10/7 12:33pm Severity: Minor
  Updated: October 7, 2026 5:15 pm Urgency: Expected
  Expires: Thu, 10/8 1:00pm Certainty: Likely

Areas Affected: San Francisco - San Francisco Bay Shoreline - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast
 
Alert Details:
* WHAT...Up to 1.2 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal waterways.

* WHERE...Bayshore locations along the San Francisco and Monterey
Bays.

* WHEN...From 9 AM Friday to 3 PM PDT Tuesday.

* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected. High tides will result in
flooding along coastal trails, cut off access to some low-
lying beaches and coastal areas, and bring water and waves
farther up the beach than typical.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.0 ft above normal (6.86 ft MLLW) at 11:22
AM Friday 10/9, 1.2 ft above normal (7.06 ft MLLW) at 11:50 AM
Saturday 10/10, 1.2 ft above normal (7.08 ft MLLW) at 12:18 PM
Sunday 10/11, 1.2 ft above normal (7.03 ft MLLW) at 12:46 PM
Monday 10/12, 1.1 ft above normal (6.90 ft MLLW) at 1:14 PM
Tuesday 10/13, and 0.9 ft above normal (6.72 ft MLLW) at 1:46 PM
Wednesday 10/14. These predictions include up to 1.0 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.