Peakflow Forecasts Header

TETON--AB S. LEIGH CR NR DRIGGS
   State:  Idaho    County:  TETON
   Latitude:  43 46' 54" North    Longitude:  111 12' 29" West
   Elevation:  5953 feet
   Supporting WFO:  Pocatello    
   Action Stage:  3.8'   Flood Stage:  4.2'   Moderate Flood Stage:  6'
   Major Flood Stage:  7'

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.

TETON--AB S. LEIGH CR NR DRIGGS   (DGGI1)
Forecasts for Water Year 2027
Ensemble Date: 2026-10-15
 Forecast Period: October 15 to February 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 2.07 272 2026-10-23
90 % 2.07 272 2026-10-23
70 % 2.07 272 2026-10-23
50 % 2.10 288 2026-10-27
30 % 2.16 314 2026-11-02
10 % 2.33 401 2026-11-15
05 % 2.38 425 2026-11-23

Peakflow exceedence plot for DGGI1

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