Peakflow Forecasts Header

SNAKE--AB JACKSON L AT FLAGG R
   State:  Wyoming    County:  TETON
   Latitude:  44 5' 55" North    Longitude:  110 40' 1" West
   Elevation:  6802 feet
   Supporting WFO:  Riverton    
   Action Stage:  9'   Flood Stage:  10'   Moderate Flood Stage:  11'

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.

SNAKE--AB JACKSON L AT FLAGG R   (FLGW4)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-15
Forecast Period: July 15 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 2.44 265 2025-09-03
90 % 2.49 286 2025-09-07
70 % 2.55 307 2025-09-19
50 % 2.58 319 2025-10-01
30 % 2.65 352 2025-10-16
10 % 2.81 422 2025-10-29
05 % 3.35 731 2025-10-31

Peakflow exceedence plot for FLGW4

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