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Tolt River joins Snoqualmie River at minor flood phase; King County Flood Warning Center monitoring flows


The King County Flood Warning Center has issued a Phase 2 flood alert for the rain-swollen Tolt River, where minor flooding could occur. The Flood Warning Center opened at 8:45 a.m. on Thursday, Jan. 28 as heavy rainfall brought sharp rises to river levels this morning.


As of 10:30 a.m., the Tolt River at Carnation recorded a flowFlood Control Zone District Logo of 3,610 cubic feet per second (CFS), exceeding the Phase 2 flood alert threshold of 3,500 CFS. At these flows, only minor flooding in low-lying areas along the Tolt River could be expected.

The Snoqualmie River also remains at a Phase 2 flood alert level, with flows of the sum of the river’s three forks recording a flow of 17,230 CFS as of 10:30 a.m. Minor flooding could be expected along stretches of the Snoqualmie River at these flows.

Flood Warning Center employees will continue monitoring stream gages and weather reports, and will provide updated information on river conditions as necessary.

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 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 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