Peakflow Forecasts Header

MIDDLE SANTIAM--GREEN PETER DAM
   State:  Oregon    County:  LINN
   Latitude:  44 27' 15" North    Longitude:  122 33' 0" West
   Elevation:  1015 feet
   Supporting WFO:  Portland    
   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.

MIDDLE SANTIAM--GREEN PETER DAM   (GPRO3)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-24
Forecast Period: April 24 to August 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 3485 2024-04-27
90 % 3485 2024-04-27
70 % 3485 2024-04-27
50 % 3485 2024-04-27
30 % 4778 2024-05-17
10 % 6967 2024-06-07
05 % 8660 2024-06-09

Peakflow exceedence plot for GPRO3

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