Peakflow Forecasts Header

SF MCKENZIE--COUGAR DAM
   State:  Oregon    County:  LANE
   Latitude:  44 8' 9" North    Longitude:  122 14' 49" West
   Elevation:  1262 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.

SF MCKENZIE--COUGAR DAM   (CGRO3)
Forecasts for Water Year
2025
Ensemble Date: 2025-05-12
Forecast Period: May 12 to September 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 852 2025-05-13
90 % 852 2025-05-13
70 % 852 2025-05-13
50 % 1160 2025-06-01
30 % 1539 2025-06-07
10 % 2419 2025-06-13
05 % 3140 2025-06-16

Peakflow exceedence plot for CGRO3

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