Peakflow Forecasts Header

SNAKE--JACKSON LAKE AT DAM
   State:  Wyoming    County:  TETON
   Latitude:  43 51' 29" North    Longitude:  110 35' 8" West
   Elevation:  6728 feet
   Supporting WFO:  Riverton    
   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.

SNAKE--JACKSON LAKE AT DAM   (JLKW4)
Forecasts for Water Year
2025
Ensemble Date: 2025-06-30
Forecast Period: June 30 to October 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 1257 2025-06-30
90 % 1257 2025-06-30
70 % 1257 2025-06-30
50 % 1257 2025-06-30
30 % 1257 2025-06-30
10 % 1257 2025-06-30
05 % 1428 2025-07-18

Peakflow exceedence plot for JLKW4

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