Peakflow Forecasts Header

SKAGIT--ROSS RESERVOIR
   State:  Washington    County:  WHATCOM
   Latitude:  48 44' 0" North    Longitude:  121 4' 1" West
   Elevation:  1605 feet
   Supporting WFO:  Seattle    
   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.

SKAGIT--ROSS RESERVOIR   (RODW1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-08
Forecast Period: July 8 to November 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 2423 2025-07-08
90 % 2432 2025-07-20
70 % 2722 2025-08-07
50 % 3171 2025-10-02
30 % 6004 2025-10-22
10 % 12838 2025-11-01
05 % 17312 2025-11-01

Peakflow exceedence plot for RODW1

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