Peakflow Forecasts Header

DESCHUTES--NEAR RAINIER
   State:  Washington    County:  THURSTON
   Latitude:  46 51' 8" North    Longitude:  122 40' 3" West
   Elevation:  349 feet
   Supporting WFO:  Seattle    
   Action Stage:  9'   Flood Stage:  11'   Moderate Flood Stage:  13.5'
   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.

DESCHUTES--NEAR RAINIER   (DSRW1)
Forecasts for Water Year 2025
Ensemble Date: 2025-07-04
 Forecast Period: July 4 to November 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 3.19 40 2025-08-16
90 % 3.26 49 2025-08-29
70 % 3.77 140 2025-10-16
50 % 4.08 224 2025-10-24
30 % 5.17 638 2025-10-29
10 % 5.89 1016 2025-11-01
05 % 6.38 1275 2025-11-01

Peakflow exceedence plot for DSRW1

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