Station operated in cooperation with the U.S. Army Corps of Engineers Walla Walla District and Confederated Tribes of the Umatilla Indian Reservation (CTUIR).
NOTE: River forecasts and additional data can be obtained at the National Weather Service's Advanced Hydrologic Prediction Services web page. NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.
| Boating safety tips |
| Min (2004) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Jan 9 | Max (2009) |
|---|---|---|---|---|---|---|
| 680 | 966 | 1200 | 1940 | 2160 | 4070 | 8170 |