King County Flood Warning

The King County Flood Warning app will be retired later in 2024. For more information about flood data and preparedness in King County, please visit kingcounty.gov/flood

The King County Flood Warning app helps safeguard people and property by providing real-time flooding info for the Skykomish, Snoqualmie, Tolt, Raging, Cedar, Green and White rivers, and Issaquah Creek. If you live, work, go to school or regularly travel in or through these areas of King County download this app to track flood conditions. The app shows current river flows, flood stage data and forecasts plus real-time flood phases. Hydrographs make it easy to see several days of river data and forecasts. This app uses data from U.S. Geological Survey and National Weather Service and Northwest River Forecast Center downloaded every 10 minutes (source data update timing varies). Developed by King County and funded by the King County Flood Control District.