Peakflow Forecasts Header

POTLATCH--BELOW LITTLE POTLATCH CR NR SPALDING
   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 CR NR SPALDING   (PRII1)
Forecasts for Water Year
2025
Ensemble Date: 2025-05-14
Forecast Period: May 14 to September 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.50 115 2025-05-14
90 % 5.50 115 2025-05-14
70 % 5.50 115 2025-05-14
50 % 5.50 115 2025-05-14
30 % 5.50 115 2025-05-14
10 % 7.96 1166 2025-06-09
05 % 9.20 2115 2025-06-15

Peakflow exceedence plot for PRII1

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