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Flood Warning System
Stay informed about potential flooding in your area. Find current river conditions, sign up for free Flood Alerts, and contact the Flood Warning Center with the information below.
Contact the Flood Warning Center
Call during flood events to get the latest information on conditions or ask questions about river flooding. Please call 911 if you are experiencing a flood emergency.
If there is no flooding, call the Flood Warning Center phone number to:
- Hear current river flow data
- Get information about sandbags
- Learn background information on flood phases
- Connect to the River and Floodplain Management section during business hours
Hours: 24-hours a day | Live representatives answer calls during flood events.
Flood Warning Information Center
206-296-8200 | Toll free: 800-945-9263
*Interpreters available by request.
Check river conditions in the Flood Warning App
Flooding is King County's most common natural disaster, with the season starting in October. Prepare now to protect yourself and your loved ones.
Stay informed year-round with King County’s new Flood Warning App. The upgraded app offers reliable, real-time river levels and flood phases for seven rivers and Issaquah Creek. Access interactive graphs and information in multiple languages to help you stay ahead and act quickly.
The app shows current river flows, flood stage data and forecasts. Hydrographs make it easy to see several days of river data and forecasts. This app downloads data from the U.S. Geological Survey and National Weather Service and Northwest River Forecast Center about every 10 minutes. The app was developed by King County and is funded by the King County Flood Control District.
Sign up for free Flood Alerts
Flood Alerts can give you more time to prepare before serious flooding occurs. You can choose how to stay informed.
- Get Flood Alerts by email, text message, or phone call.
- Select the rivers that affect you.
- Select the flood phases that are of interest to you.
Other emergency alerting / notification / warning systems
You may be able to subscribe to multiple emergency alert providers depending on where you live. More warnings can give you more time to prepare for emergency situations, so take advantage of as many as you can. We recommend the following alert systems:
National Weather Service - NOAA Weather Radio System
Washington State Department of Transportation: Twitter
King County: ALERT King County
Check with your local jurisdiction for emergency alerts
Sign up to receive alerts by all methods possible: phone call, text message, and e-mail. If you have multiple phones or email addresses, consider signing up for alerts with all of them.