Strong winds and unusually high tides could affect coastal communities across northwest Washington overnight Saturday and Sunday morning, with the National Weather Service warning of possible flooding along low-lying shorelines.
A coastal flood advisory is in effect from 8 a.m. to noon Sunday, Nov. 15, for San Juan County and the lowlands of western Whatcom County. The advisory does not include La Conner or Skagit County, but residents along the Swinomish Channel and other low-lying waterfront areas should remain alert to changing tidal conditions.
Forecasters say tidal overflow could cause minor coastal flooding in areas covered by the advisory, with water reaching 1.75 to 2 feet above the normal higher high tide level. Waterfront parking lots, parks and roads could flood, although widespread road closures are not expected.
Meanwhile, a wind advisory remains in effect for San Juan County until 4 a.m. Sunday, with southeast winds of 20 to 30 mph and gusts up to 55 mph. The strongest winds are expected Saturday night.
Gusty conditions could bring down tree limbs, cause isolated power outages and make driving difficult, particularly for high-profile vehicles.
Residents are encouraged to secure outdoor objects, use caution near the waterfront and avoid driving through flooded roads.
The National Weather Service issued both advisories Saturday, Nov. 14.
