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
2024
Ensemble Date: 2024-04-24
Forecast Period: April 24 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 6.90 540 2024-04-28
90 % 6.90 540 2024-04-28
70 % 6.90 540 2024-04-28
50 % 7.03 587 2024-05-11
30 % 7.29 693 2024-05-19
10 % 7.92 1275 2024-06-04
05 % 8.85 2311 2024-06-13

Peakflow exceedence plot for KTFW1

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