Peakflow Forecasts Header

SATSOP--NEAR SATSOP
   State:  Washington    County:  GRAYS HARBOR
   Latitude:  47 0' 2" North    Longitude:  123 29' 40" West
   Elevation:  21 feet
   Supporting WFO:  Seattle    
   Action Stage:  36'   Flood Stage:  38'   Moderate Flood Stage:  40'
   Major Flood Stage:  42'

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.

SATSOP--NEAR SATSOP   (SATW1)
Forecasts for Water Year 2025
Ensemble Date: 2025-07-03
 Forecast Period: July 3 to November 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 28.16 366 2025-07-18
90 % 28.97 806 2025-09-21
70 % 30.33 2022 2025-10-15
50 % 31.01 2819 2025-10-23
30 % 32.68 5328 2025-10-29
10 % 36.22 13456 2025-11-01
05 % 37.06 17427 2025-11-01

Peakflow exceedence plot for SATW1

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