Peakflow Forecasts Header

LITTLE SALMON--AT RIGGINS
   State:  Idaho    County:  IDAHO
   Latitude:  45 24' 47" North    Longitude:  116 19' 28" West
   Elevation:  1760 feet
   Supporting WFO:  Missoula    
   Action Stage:  9'   Flood Stage:  10'

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.

LITTLE SALMON--AT RIGGINS   (RIGI1)
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 % 3.63 621 2022-02-20
90 % 3.81 713 2022-02-24
70 % 4.31 1005 2022-03-17
50 % 4.74 1296 2022-03-23
30 % 5.57 1961 2022-03-27
10 % 6.41 2768 2022-04-01
05 % 6.84 3247 2022-04-01

Peakflow exceedence plot for RIGI1

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