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 (1979) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Jan 3 | Max (1997) |
|---|---|---|---|---|---|---|
| 620 | 900 | 1150 | 1750 | 1820 | 3100 | 20300 |