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
2026
Ensemble Date: 2026-01-23
Forecast Period: January 23 to May 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 2460 2026-03-04
90 % 2506 2026-03-09
70 % 2859 2026-04-09
50 % 3346 2026-04-17
30 % 3950 2026-04-25
10 % 5034 2026-05-01
05 % 6690 2026-05-01

Peakflow exceedence plot for CSDI1

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