WALLA WALLA − NEAR TOUCHET (TCHW1)
   State:  Washington
   County:  Walla Walla
   Latitude:  46 2' 0" North
   Longitude:  118 44' 0" West
   Elevation:  405 ft

   Supporting NWS Forecast Office: WFO Pendleton

   
Click for NWS Official River Forecasts for TCHW1
   


   Action Stage:  
10 ft
   Flood Stage:  
13 ft
   Moderate Flood Stage:  
15 ft
   Major Flood Stage:  
17 ft
Daily Historical Statistics for June 15, 2026
Mean Stage: 4.23 ft  Mean Flow: 349 cfs
Max Stage: 10.77 ft  Max Flow: 4990 cfs (2022)
Min Stage:  2.27 ft   Min Flow: 17 cfs (1963)

Statistics based on water years: 1952-2024
* statistics estimated based on current rating

Record Stage: 
20.58 ft
Record Flow: 
33400 cfs
Date of Record: 
December 22, 1964

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for TCHW1

Data Used In Plot   "label   USGS Observations