Peakflow Forecasts Header

FALL RIVER--NEAR CHESTER
   State:  Idaho    County:  FREMONT
   Latitude:  44 1' 0" North    Longitude:  111 34' 0" West
   Elevation:  5052 feet
   Supporting WFO:  Pocatello    
   Action Stage:  6'   Flood Stage:  6.5'

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.

FALL RIVER--NEAR CHESTER   (CHEI1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-11
Forecast Period: July 11 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 2.19 368 2025-09-09
90 % 2.30 427 2025-09-15
70 % 2.35 456 2025-10-01
50 % 2.41 498 2025-10-14
30 % 2.53 574 2025-10-25
10 % 2.89 852 2025-10-31
05 % 3.40 1328 2025-10-31

Peakflow exceedence plot for CHEI1

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