The King County Flood Warning Center opened at 11:30 a.m. on Tuesday, Nov. 4, as steady rainfall brought the Snoqualmie River up to a Phase II flood alert level. Only minor flooding is expected.
As of 11:30 a.m. Tuesday, the sum of the Snoqualmie River’s three forks was at 14,210 cubic feet per second (CFS), well above the Phase II flood alert threshold of 12,000 CFS.
Typically, only minor flooding in low-lying areas would be expected along the Snoqualmie River at these flows, with the potential for water over just a few roads. The river last reached a similar Phase II flood alert level this past March.
A Phase II flood alert level is the level of the County’s four-phase warning system at which the Flood Warning Center activates to monitor conditions. This is the Flood Warning Center’s first activation of the fall flood season, and the center will remain open as long as flood conditions persist.
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.
