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COWLITZ--NEAR KOSMOS
   State:  Washington    County:  LEWIS
   Latitude:  46 27' 58" North    Longitude:  122 7' 5" West
   Elevation:  780 feet
   Supporting WFO:  Seattle    

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--NEAR KOSMOS   (COKW1)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-07
Forecast Period: December 7 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 70.93 9361 2021-12-13
90 % 71.00 9486 2021-12-14
70 % 74.94 18196 2022-01-02
50 % 77.57 25919 2022-01-17
30 % 79.95 34366 2022-02-09
10 % 84.05 52367 2022-03-03
05 % 85.02 57306 2022-03-19

Peakflow exceedence plot for COKW1

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