Peakflow Forecasts Header

KETTLE--AT LAURIER
   State:  Washington    County:  FERRY
   Latitude:  48 59' 3" North    Longitude:  118 12' 55" West
   Elevation:  1426 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.

KETTLE--AT LAURIER   (LAUW1)
Forecasts for Water Year
2027
Ensemble Date: 2026-10-13
Forecast Period: October 13 to February 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 2.93 355 2026-11-05
90 % 2.96 367 2026-11-07
70 % 3.15 464 2026-11-18
50 % 3.40 606 2026-11-26
30 % 3.73 818 2026-12-16
10 % 4.28 1240 2027-01-30
05 % 4.50 1428 2027-01-31

Peakflow exceedence plot for LAUW1

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