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 (1994) | 25th percen- tile | Median | Mean | 75th percen- tile | Max (1996) | Most Recent Instantaneous Value Dec 20 |
|---|---|---|---|---|---|---|
| 460 | 891 | 1210 | 1610 | 1720 | 5640 | 6280 |