Peakflow Forecasts Header

CHEHALIS--NEAR DOTY
   State:  Washington    County:  LEWIS
   Latitude:  46 37' 1" North    Longitude:  123 16' 42" 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 2024
Ensemble Date: 2024-04-24
 Forecast Period: April 24 to August 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 307.70 422 2024-05-03
90 % 307.70 422 2024-05-03
70 % 307.71 428 2024-05-03
50 % 307.98 542 2024-05-16
30 % 308.45 773 2024-05-29
10 % 309.41 1368 2024-06-10
05 % 310.15 1921 2024-06-14

Peakflow exceedence plot for DOTW1

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