Peakflow Forecasts Header

CHEHALIS--NEAR DOTY
   State:  Washington    County:  LEWIS
   Latitude:  46 37' 3" North    Longitude:  123 16' 35" West
   Elevation:  302 feet
   Supporting WFO:  Seattle    
   Action Stage:  315.5'   Flood Stage:  318'   Moderate Flood Stage:  323.5'
   Major Flood Stage:  
324.5'

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.

CHEHALIS--NEAR DOTY   (DOTW1)
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 % 312.95 4939 2021-12-12
90 % 312.95 4939 2021-12-12
70 % 314.15 6587 2021-12-27
50 % 315.05 7875 2022-01-10
30 % 316.45 10061 2022-01-23
10 % 318.30 13308 2022-03-09
05 % 318.84 14318 2022-03-17

Peakflow exceedence plot for DOTW1

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