The green river levee flash flood warning remains in effect today as emergency crews respond to a confirmed levee failure in King County, Washington, prompting evacuations and widespread safety alerts across multiple communities.
As of December 16, 2025, officials confirm that a breach in the Desimone Levee along the Green River has led to dangerous flooding conditions, particularly in low-lying areas near Tukwila. Authorities continue to urge residents to take immediate precautions as river levels remain elevated and ground conditions stay unstable.
What Triggered the Flash Flood Warning
The flash flood warning was issued after prolonged heavy rainfall caused the Green River to rise rapidly, overwhelming existing flood control measures. The Desimone Levee failed late Monday morning, allowing water to spill into nearby neighborhoods and industrial zones.
Emergency managers described the situation as fast-moving and potentially life-threatening, especially for anyone remaining in evacuation zones. The warning was issued to ensure people moved to higher ground without delay.
Areas Impacted by the Green River Levee Failure
Communities most affected by the flooding and evacuation orders include:
- Tukwila
- Renton
- Kent
- Portions of surrounding low-lying river areas
At the height of the emergency, tens of thousands of residents were included in the flash flood warning area. Officials later narrowed the focus to neighborhoods closest to the levee breach as water flow patterns became clearer.
Evacuation Orders and Public Safety Actions
Authorities issued a Level 3 evacuation order, meaning residents were instructed to leave immediately. Emergency alerts were sent through mobile notifications and local warning systems to ensure people acted quickly.
Key safety instructions included:
- Move to higher ground immediately
- Avoid flooded roads and underpasses
- Do not attempt to drive or walk through standing water
- Follow directions from emergency responders
Officials emphasized that floodwaters can rise with little warning and that conditions may change rapidly.
Desimone Levee Breach Details
The levee breach occurred near the Tukwila area after days of intense rain saturated the soil. Water pressure against the levee increased as river levels surged well above seasonal norms.
Emergency crews had previously attempted to reinforce the structure, but the continued rainfall weakened the foundation. Once the breach occurred, water began flowing into areas not designed to handle river overflow.
Repair efforts remain ongoing, with crews monitoring the levee around the clock.
Emergency Response and Support Efforts
Local emergency teams, public works crews, and state resources were mobilized immediately following the breach. Response efforts include:
- Sandbagging and temporary flood barriers
- Traffic control and road closures
- Evacuation assistance for residents and workers
- Ongoing river and weather monitoring
State support resources were also activated to assist with logistics, safety operations, and levee stabilization.
Road Closures and Transportation Disruptions
Flooding from the Green River levee failure has led to multiple road closures, particularly in river-adjacent corridors and industrial zones. Drivers are advised to avoid affected routes and use alternate paths when possible.
Officials warn that driving through flooded roads is one of the leading causes of flood-related injuries and fatalities. Even shallow water can conceal damage or sweep vehicles off the roadway.
Shelters and Temporary Housing
Emergency shelters have been opened in nearby communities to support evacuees. These facilities provide a safe place to stay for individuals and families displaced by the flooding.
Residents were encouraged to bring essential items, medications, and important documents when evacuating. Pets are being accommodated at select shelter locations.
Current Status of the Flash Flood Warning
The green river levee flash flood warning remains active as officials continue to monitor river levels and weather conditions. While some stabilization efforts are underway, authorities caution that additional rainfall could worsen flooding.
Water levels may fluctuate, and residents in or near evacuation zones should stay alert for updated instructions.
Why This Flood Event Matters
This flooding event highlights the growing challenges faced by river communities during periods of intense rainfall. Aging infrastructure combined with saturated ground conditions increases the risk of levee failure and sudden flooding.
Officials stress that preparedness, early warnings, and public cooperation are critical to reducing harm during these emergencies.
What Residents Should Do Next
Residents are urged to:
- Stay informed through official emergency alerts
- Avoid restricted or flooded areas
- Check on neighbors who may need assistance
- Follow evacuation and safety guidance without delay
Emergency teams continue working to secure the area and reduce further risk.
Stay alert as conditions evolve, and feel free to share your thoughts or experiences as this situation continues to develop.