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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.

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 current river conditions

The King County Flood Warning App helps you stay informed about conditions on seven rivers and Issaquah Creek. Launch the app to view:
  • Current river conditions
  • Forecasts
  • Interactive graphs
  • Information in many languages through Google Translate

You can also install the app to use on your computer or mobile devices. The application downloads data from the U.S. Geological Survey, National Weather Service, and Northwest River Forecast Center about every 10 minutes. The app was funded by the King County Flood Control District and developed by King County.

Image of the Flood Warning App iconLaunch the Flood Warning App

Sign up for Flood Alerts

Flood Alerts can give you more time to prepare before serious flooding occurs. It is free to sign up, and you can choose how to stay informed.

  • Get Flood Alerts by email, text message, or a phone call.
  • Select the rivers that affect you.
  • Select the flood phases that are of interest to you.

Sign up for Flood Alerts

Other emergency alerts and notifications

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:

NOAA Weather Radio

USGS WaterAlert

National Weather Service - NOAA Weather Radio System 

King County: ALERT King County

King County Road Alert 

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.

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