Peakflow Forecasts Header

POTLATCH--BELOW LITTLE POTLATCH
   State:  Idaho    County:  NEZ PERCE
   Latitude:  46 29' 55" North    Longitude:  116 45' 42" West
   Elevation:  0 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.

POTLATCH--BELOW LITTLE POTLATCH   (PRII1)
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 % 9.31 2343 2022-01-09
90 % 9.56 2573 2022-01-14
70 % 10.41 3451 2022-02-15
50 % 11.40 4665 2022-02-24
30 % 14.02 9413 2022-03-13
10 % 17.60 21654 2022-03-29
05 % 17.60 24697 2022-04-01

Peakflow exceedence plot for PRII1

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