Peakflow Forecasts Header

SKOOKUMCHUCK--AT CENTRALIA
   State:  Washington    County:  LEWIS
   Latitude:  46 43' 52" North    Longitude:  122 57' 10" West
   Elevation:  100 feet
   Supporting WFO:  Seattle    
   Action Stage:  187'   Flood Stage:  189'   Moderate Flood Stage:  190'
   Major Flood Stage:  
191'

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.

SKOOKUMCHUCK--AT CENTRALIA   (CTAW1)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 182.32 1902 2021-12-13
90 % 182.32 1902 2021-12-13
70 % 184.74 3286 2022-01-04
50 % 186.47 4781 2022-01-16
30 % 187.87 6238 2022-01-31
10 % 190.91 10161 2022-02-23
05 % 191.76 12939 2022-02-25

Peakflow exceedence plot for CTAW1

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