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 (1989) | Most Recent Instantaneous Value Nov 1 | 25th percen- tile | Median | Mean | 75th percen- tile | Max (1960) |
|---|---|---|---|---|---|---|
| 541 | 629 | 762 | 860 | 958 | 1030 | 2270 |