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COWLITZ--MOSSYROCK RESERVOIR
   State:  Washington    County:  LEWIS
   Latitude:  46 32' 7" North    Longitude:  122 25' 24" West
   Elevation:  679 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.

COWLITZ--MOSSYROCK RESERVOIR   (MSRW1)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-18
Forecast Period: April 18 to August 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 7112 2024-05-06
90 % 7928 2024-05-09
70 % 9843 2024-05-14
50 % 10904 2024-05-25
30 % 12508 2024-05-31
10 % 18441 2024-06-11
05 % 22278 2024-06-15

Peakflow exceedence plot for MSRW1

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