Peakflow Forecasts Header

COLVILLE--AT KETTLE FALLS
   State:  Washington    County:  STEVENS
   Latitude:  48 36' 0" North    Longitude:  118 4' 0" West
   Elevation:  1400 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.

COLVILLE--AT KETTLE FALLS   (KTFW1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-05
Forecast Period: July 5 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.41 98 2025-07-05
90 % 5.41 98 2025-07-05
70 % 5.41 98 2025-07-05
50 % 5.41 98 2025-07-05
30 % 5.41 99 2025-10-23
10 % 5.45 106 2025-10-31
05 % 5.45 106 2025-11-01

Peakflow exceedence plot for KTFW1

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