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King County Flood Warning Center opens as strong late spring storm leads to minor flooding along Snoqualmie River


The King County Flood Warning Center opened at 12:45 a.m. on Friday, June 10, to monitor minor flooding along the Snoqualmie River as heavy rainfall from a powerful spring storm sent river levels higher across the region.


King County’s Flood Warning Center opened at 12:45 a.m.rsz_kcfcd_21 on Friday, June 10, to monitor minor flooding on the Snoqualmie River from steady and persistent rainfall across the eastern portions of the county.

As of 12:45 a.m. Friday, the sum of the Snoqualmie River’s three forks was flowing at 13,590 cubic feet per second (CFS), well above the Phase 2 flood alert level of 12,000 CFS for the Snoqualmie River. At these flows, some minor flooding could occur in low-lying areas along the river, with floodwaters impacting some roadways, including Neal Road, Southeast Reinig Road, West Snoqualmie River Road, Snoqualmie Meadowbrook road and Mill Pond Road.

King County Flood Warning Center employees are monitoring stream gauges and weather reports to provide updated information on river conditions as necessary. Find real-time river level information is available online at

During river flooding events, King County serves as a clearinghouse for information on flood conditions, operating a recorded message center with continuous updates of river gauge readings and flood phases and other related information. Reach the Flood Warning Center at 206-296-8200 or 1-800-945-9263. Interpreter assistance in multiple languages is available.

King County offers everyone free access to KC Flood Alerts, an automated system that allows subscribers to receive customized alerts of potential flooding for any or all of King County’s seven major river systems.

Immediate notifications about pending high water are sent to email, smart phone text or voicemail, providing subscribers with the maximum amount of warning about potential high water.

Questions or assistance with flooding on smaller streams or urban drainage problems can be called in to 206-477-4811 during business hours or 206-477-8100 after hours or on weekends.

Problems on King County-maintained roads can be reported by calling 206-477-8100 or 1-800-KC-ROADS.

Sign up for flood warnings and alerts
King County Flood Control District

Doug Williams, Department of Natural Resources and Parks, 206-477-4543

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The King County Flood Control District is a special purpose government created to provide funding and policy oversight for flood protection projects and programs in King County. The Flood Control District’s Board is composed of the members of the King County Council. The Water and Land Resources Division of the King County Department of Natural Resources and Parks develops and implements the approved flood protection projects and programs. Information is available at