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
2024
Ensemble Date: 2024-04-15
Forecast Period: April 15 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 13.17 3184 2024-05-06
90 % 13.29 3385 2024-05-08
70 % 13.68 4082 2024-05-15
50 % 13.95 4610 2024-05-19
30 % 14.19 5105 2024-05-25
10 % 14.94 6283 2024-06-01
05 % 15.06 6464 2024-06-07

Peakflow exceedence plot for WTHW1

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