Peakflow Forecasts Header

BIG WOOD--AT HAILEY
   State:  Idaho    County:  BLAINE
   Latitude:  43 31' 1" North    Longitude:  114 19' 14" West
   Elevation:  5295 feet
   Supporting WFO:  Pocatello    
   Action Stage:  5'   Flood Stage:  6'   Moderate Flood Stage:  7'
   Major Flood Stage:  8'

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.

BIG WOOD--AT HAILEY   (HALI1)
Forecasts for Water Year 2026
Ensemble Date: 2026-07-10
 Forecast Period: July 10 to November 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 2.21 374 2026-07-10
90 % 2.21 374 2026-07-10
70 % 2.21 374 2026-07-10
50 % 2.21 374 2026-07-10
30 % 2.21 374 2026-07-10
10 % 2.28 406 2026-08-29
05 % 2.44 474 2026-10-12

Peakflow exceedence plot for HALI1

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