UMATILLA − AT PENDLETON (PDTO3)
   State:  Oregon
   County:  Umatilla
   Latitude:  45 40' 15" North
   Longitude:  118 47' 30" West
   Elevation:  1050 ft

   Supporting NWS Forecast Office: WFO Pendleton

   
Click for NWS Official River Forecasts for PDTO3
   


   Action Stage:  
11 ft
   Flood Stage:  
12.3 ft
   Moderate Flood Stage:  
13.5 ft
   Major Flood Stage:  
17 ft
Daily Historical Statistics for June 25, 2026
Mean Stage: 4.96 ft  Mean Flow: 182 cfs
Max Stage: 5.72 ft  Max Flow: 600 cfs (1948)
Min Stage:  4.23 ft   Min Flow: 35 cfs (1940)

Statistics based on water years: 1935-1989
* statistics estimated based on current rating

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

Hydrograph plot for PDTO3

Data Used In Plot   "label   USBR Observations   


Hydrograph plot for PDTO3

Data Used In Plot   "label   USBR Observations