Peakflow Forecasts Header

COW CREEK--GALESVILLE RESERVOIR
   State:  Oregon    County:  DOUGLAS
   Latitude:  42 50' 56" North    Longitude:  123 10' 40" West
   Elevation:  1881 feet
   Supporting WFO:  Medford    
   Inflow Data  

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.

COW CREEK--GALESVILLE RESERVOIR   (GSVO3)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-11
Forecast Period: July 11 to November 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 25 2025-07-30
90 % 28 2025-09-03
70 % 46 2025-09-28
50 % 59 2025-10-17
30 % 78 2025-10-26
10 % 146 2025-10-31
05 % 174 2025-11-01

Peakflow exceedence plot for GSVO3

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