Peakflow Forecasts Header

METHOW--AT WINTHROP
   State:  Washington    County:  OKANOGAN
   Latitude:  48 28' 0" North    Longitude:  120 10' 0" West
   Elevation:  1718 feet
   Supporting WFO:  Spokane    

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.

METHOW--AT WINTHROP   (WTHW1)
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 % 11.74 1407 2021-12-08
90 % 11.74 1407 2021-12-08
70 % 11.74 1407 2021-12-08
50 % 11.74 1407 2021-12-08
30 % 11.99 1698 2022-03-24
10 % 12.59 2422 2022-04-01
05 % 13.15 3211 2022-04-01

Peakflow exceedence plot for WTHW1

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