Peakflow Forecasts Header

PALOUSE--NEAR POTLATCH
   State:  Idaho    County:  LATAH
   Latitude:  46 54' 55" North    Longitude:  116 57' 0" West
   Elevation:  2455 feet
   Supporting WFO:  Spokane    
   Action Stage:  14'   Flood Stage:  15'   Moderate Flood Stage:  16'
   Major Flood Stage:  
17'

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.

PALOUSE--NEAR POTLATCH   (PLOI1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-01
Forecast Period: July 1 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.04 8 2025-10-10
90 % 5.04 8 2025-10-21
70 % 5.10 10 2025-10-27
50 % 5.13 11 2025-10-30
30 % 5.15 12 2025-10-31
10 % 5.54 41 2025-11-01
05 % 6.40 165 2025-11-01

Peakflow exceedence plot for PLOI1

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