Peakflow Forecasts Header

BIG LOST--AT HOWELL RANCH NEAR CHILLY
   State:  Idaho    County:  CUSTER
   Latitude:  43 59' 54" North    Longitude:  114 1' 16" West
   Elevation:  6622 feet
   Supporting WFO:  Pocatello    
   Action Stage:  3.51'   Flood Stage:  4'

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 LOST--AT HOWELL RANCH NEAR CHILLY   (HWRI1)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-25
Forecast Period: April 25 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.59 1715 2024-05-09
90 % 3.78 1930 2024-05-13
70 % 3.95 2130 2024-05-18
50 % 4.07 2275 2024-05-27
30 % 4.17 2413 2024-05-31
10 % 4.57 3000 2024-06-13
05 % 4.78 3333 2024-06-16

Peakflow exceedence plot for HWRI1

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