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Green River reaches Phase II flood alert level; King County Flood Warning Center monitoring flows

Summary

The King County Flood Warning Center, which opened at 5:45 a.m. on Tuesday, Nov. 25, has issued a Phase II flood alert for the Green River. Only minor flooding in low-lying areas upstream of Auburn is expected.

Story

The King County Flood Warning Center, which opened at 5:45 a.m. on Tuesday, Nov. 25, has issued a Phase II floodFlood Control Zone District Logo alert for the Green River. Only minor flooding in low-lying areas upstream of Auburn is expected.

As of 11:15 p.m. Tuesday evening, the stream gage at Auburn measured a flow of 7,130 cubic feet per second (CFS), slightly higher than the 7,000 CFS threshold for a Phase II flood alert. At this level, minor flooding is possible along the Green River in rural areas upstream of Auburn. Flows on the river are controlled by the U.S. Army Corps of Engineers' Howard Hanson Dam.

Meanwhile, the Snoqualmie River remains at a Phase III flood alert level. As of 11:15 p.m. Tuesday night, the sum of the Snoqualmie River's three forks recorded a flow of 22,560 CFS, with flooding across much of the Snoqualmie Valley, including some road closures.

Flood Warning Center employees will monitor stream gages and weather reports, and will provide updated information on river conditions as necessary. Real-time river level information is available online at kingcounty.gov/flood.

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 gage 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 six 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.

Find the KC Flood Alerts link at kingcounty.gov/flood. This website is a valuable preparedness resource, with all of the latest information about river levels and road conditions, plus weather reports and other critical links.

Questions or assistance with flooding on smaller streams or urban drainage problems can be called in to 206-296-1900 during business hours, or 206-296-8100 after hours or on weekends.

Problems on County maintained roads can be reported by calling 206-296-8100 or 1-800-KC-ROADS.

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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 kingcountyfloodcontrol.org.