Peakflow Forecasts Header

JOHN DAY--AT SERVICE CK
   State:  Oregon    County:  WHEELER
   Latitude:  44 47' 38" North    Longitude:  120 0' 20" West
   Elevation:  1632 feet
   Supporting WFO:  Pendleton    
   Action Stage:  10'   Flood Stage:  11.5'   Moderate Flood Stage:  12.5'
   Major Flood Stage:  
15'

Forecasts are calculated from a forecast time series that approximates flow at a 6 hour time step interval. Observed instantaneous peaks can be higher than model forecast peaks.

JOHN DAY--AT SERVICE CK   (SERO3)
Forecasts for Water Year
2025
Ensemble Date: 2025-05-12
Forecast Period: May 12 to September 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 8.11 7072 2025-05-14
90 % 8.11 7072 2025-05-14
70 % 8.11 7072 2025-05-14
50 % 8.11 7072 2025-05-14
30 % 8.11 7072 2025-05-14
10 % 8.11 7072 2025-05-14
05 % 8.84 8552 2025-06-03

Peakflow exceedence plot for SERO3

 Click to download runoff traces used in forecast.  Click for comma delimited data used in plot.csv icon