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: 2025-05-12
Forecast Period: May 12 to September 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 6416 2025-05-25
90 % 6926 2025-05-26
70 % 7912 2025-06-01
50 % 8641 2025-06-05
30 % 9822 2025-06-11
10 % 11723 2025-06-23
05 % 14413 2025-07-02

Peakflow exceedence plot for RODW1

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