Coastal Flood Advisory

Locations Affected

Bellingham, WA ∙ Lopez Island, WA ∙ North Stanwood, WA ∙ Marietta-Alderwood, WA ∙ Big Lake, WA ∙ Friday Harbor, WA ∙ Lynden, WA ∙ Birch Point, WA ∙ Strandell, WA ∙ Anacortes, WA

Full Alert Message

Coastal Hazard Message National Weather Service Seattle WA 1035 AM PST Sun Dec 7 2025 ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 6 AM TO NOON PST MONDAY... ...COASTAL FLOOD ADVISORY WILL EXPIRE AT 11 AM PST THIS MORNING... * WHAT...Minor coastal flooding expected. Inundation of around 2 feet above ground level is possible along shorelines and low- lying coastal areas. * WHERE...San Juan County, Lowlands of Western Whatcom County and Lowlands of Western Skagit and Northwestern Snohomish Counties zones. * WHEN...From 6 AM to noon PST Monday. * IMPACTS...Minor coastal flooding due to tidal overflow is expected around high tide. This may lead to flooding of parking lots, parks, and roads, with only isolated road closures expected. * ADDITIONAL DETAILS...Coastal flooding will occur in the hours around high tide, at around 900 AM Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. Inundation above ground level refers to the height above the Mean Higher High Water (MHHW) level.

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