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
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 10.34 573 2021-12-08
90 % 10.34 573 2021-12-08
70 % 10.55 710 2022-03-22
50 % 10.91 1008 2022-03-30
30 % 11.31 1383 2022-04-01
10 % 12.53 2833 2022-04-01
05 % 13.19 3782 2022-04-01

Peakflow exceedence plot for FRYW1

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