Peakflow Forecasts Header

NORTH SANTIAM--DETROIT DAM
   State:  Oregon    County:  MARION
   Latitude:  44 43' 19" North    Longitude:  122 14' 54" West
   Elevation:  1570 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.

NORTH SANTIAM--DETROIT DAM   (DETO3)
Forecasts for Water Year
2027
Ensemble Date: 2026-10-10
Forecast Period: October 10 to February 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 4354 2026-11-09
90 % 6164 2026-11-21
70 % 9830 2026-12-08
50 % 14481 2026-12-30
30 % 18590 2027-01-08
10 % 22205 2027-01-27
05 % 26296 2027-01-30

Peakflow exceedence plot for DETO3

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