Peakflow Forecasts Header

KETTLE--NEAR FERRY
   State:  Washington    County:  FERRY
   Latitude:  48 58' 53" North    Longitude:  118 45' 55" West
   Elevation:  1837 feet
   Supporting WFO:  Spokane    
   Action Stage:  17.5'   Flood Stage:  18.5'   Moderate Flood Stage:  19.5'
   Major Flood Stage:  20.5'

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.

KETTLE--NEAR FERRY   (FRYW1)
Forecasts for Water Year 2027
Ensemble Date: 2026-10-10
 Forecast Period: October 10 to February 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 9.42 168 2026-10-27
90 % 9.42 168 2026-10-30
70 % 9.54 206 2026-11-07
50 % 9.63 239 2026-11-15
30 % 10.10 442 2026-11-20
10 % 10.47 654 2027-01-06
05 % 10.66 792 2027-01-30

Peakflow exceedence plot for FRYW1

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