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
2022
Ensemble Date: 2021-12-07
Forecast Period: December 7 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 6.64 412 2022-01-16
90 % 6.80 468 2022-02-08
70 % 7.37 746 2022-03-14
50 % 7.59 960 2022-03-23
30 % 7.94 1311 2022-03-28
10 % 8.47 1857 2022-04-01
05 % 8.93 2358 2022-04-01

Peakflow exceedence plot for KTFW1

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