Peakflow Forecasts Header

NF PAYETTE--CASCADE DAM
   State:  Idaho    County:  VALLEY
   Latitude:  44 31' 0" North    Longitude:  116 3' 0" West
   Elevation:  4828 feet
   Supporting WFO:  Boise    
   Inflow Data  

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.

NF PAYETTE--CASCADE DAM   (CSDI1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-11
Forecast Period: July 11 to November 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 736 2025-08-16
90 % 916 2025-08-22
70 % 1266 2025-09-19
50 % 1462 2025-10-11
30 % 2008 2025-10-22
10 % 2470 2025-10-29
05 % 2910 2025-10-31

Peakflow exceedence plot for CSDI1

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