JOHN DAY − AT SERVICE CK (SERO3)
   State:  Oregon
   County:  Wheeler
   Latitude:  44 47' 38" North
   Longitude:  120 0' 20" West
   Elevation:  1632 ft

   Supporting NWS Forecast Office: WFO Pendleton

   
Click for NWS Official River Forecasts for SERO3
   


   Action Stage:  
10 ft
   Flood Stage:  
11.5 ft
   Moderate Flood Stage:  
12.5 ft
   Major Flood Stage:  
15 ft
Daily Historical Statistics for April 05, 2026
Mean Stage: 6.72 ft  Mean Flow: 4720 cfs
Max Stage: 10.53 ft  Max Flow: 12700 cfs (1993)
Min Stage:  3.69 ft   Min Flow: 1120 cfs (1968)

Statistics based on water years: 1930-2025
* statistics estimated based on current rating

Record Stage: 
17.85 ft
Record Flow: 
40200 cfs
Date of Record: 
December 23, 1964

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

Hydrograph plot for SERO3

Data Used In Plot   "label   USGS Observations