Peakflow Forecasts Header

BIG LOST--MACKAY RESERVOIR NEAR MACKAY
   State:  Idaho    County:  CUSTER
   Latitude:  43 57' 5" North    Longitude:  113 40' 27" West
   Elevation:  5946 feet
   Supporting WFO:  Pocatello    
   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.

BIG LOST--MACKAY RESERVOIR NEAR MACKAY   (MACI1)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-18
Forecast Period: April 18 to August 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 1210 2024-05-02
90 % 1222 2024-05-05
70 % 1448 2024-05-17
50 % 1631 2024-05-28
30 % 2024 2024-06-05
10 % 2364 2024-06-18
05 % 2443 2024-06-22

Peakflow exceedence plot for MACI1

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