King County Flood Warning System
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About this facility
- Service
- Temporary
Notes
How to prepare for a flood
Important phone numbers and Web sites
National Weather Service: current flood watches, warnings and statements
Map of river basins in King County
Flood information by river
SEE WEBSITE FOR ALL INFORMATION & contacts -
What does each phase mean?
At Phase I, County personnel are put on alert and preparations are made to open the Flood Warning Center. When a Phase II threshold is reached, the Center is opened. Staff at the Center monitor river gages and flood conditions around the clock, and gage information is updated hourly on a recorded message (call 206-296-8200 or 800-945-9263). When a Phase III threshold is reached, investigation crews are sent out to monitor flood control facilities (such as levees). Phase II-IV warnings are issued to police, fire departments, schools, other agencies, and the public through news media and in some neighborhoods through volunteer telephone trees.