Minor flooding was reported in downtown La Conner during the wee hours of Sunday morning as a king tide combined with low barometric pressure and strong southerly winds pushed water levels higher than forecast. More minor flooding is expected Monday morning according to the National Weather Service.
Sunday’s high tide reached 13.2 feet exceeding tide chart predictions. A low barometric pressure of 29.4 inches and southerly winds of 15–20 knots helped push water above normal levels, according to Doug Asbe, La Conner emergency management commissioner.
The first signs of high water appeared at the storm drain in the Nell Thorn parking lot an area known to flood early during king tides. Water typically begins showing there at 12.3 feet and without sandbags can flow into the street at 12.5 feet.
At peak tide water reached the base of sandbags placed just north of Channel Lodge and the Clarke Moore building. Water was also observed bubbling from a manhole cover near the Lime Dock building though pumps were able to keep up with the flow.
Town public works staff and volunteer firefighters were on site monitoring conditions and responding as needed. No major damage or road closures were reported.
Coastal flood advisory for Monday morning
The National Weather Service has issued a Coastal Flood Advisory for La Conner and surrounding areas effective 6 a.m. to 10 a.m. Monday.
The advisory covers San Juan County the lowlands of western Whatcom County the lowlands of western Skagit and northwestern Snohomish counties and Island County.
Forecasters warn that minor coastal flooding is expected with 1.75 to 2.5 feet of inundation above ground level possible in low-lying coastal areas around high tide. Impacts may include flooding of parking lots parks and roads with isolated road closures possible.
Residents are advised to allow extra travel time Monday morning avoid driving through standing water and not to bypass barricades. The National Weather Service notes that inundation levels are measured above Mean Higher High Water.
More king tides ahead
Several additional king tides are expected over the coming days. Public works crews will continue monitoring weather forecasts and tide levels and will respond as conditions warrant.
Residents in flood-prone areas are encouraged to stay alert secure property as needed and watch for updates from the town and emergency officials.
