Peakflow Forecasts Header

MORES CREEK--NR ARROWROCK DAM
   State:  Idaho    County:  ADA
   Latitude:  43 39' 0" North    Longitude:  115 58' 59" West
   Elevation:  3120 feet
   Supporting WFO:  Boise    
   Action Stage:  8'   Flood Stage:  8.8'

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.

MORES CREEK--NR ARROWROCK DAM   (MORI1)
Forecasts for Water Year
2027
Ensemble Date: 2026-10-10
Forecast Period: October 10 to February 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 2.37 101 2026-11-01
90 % 2.48 122 2026-11-17
70 % 2.84 210 2026-12-12
50 % 3.74 542 2027-01-02
30 % 4.31 821 2027-01-15
10 % 5.08 1286 2027-01-26
05 % 5.33 1453 2027-01-30

Peakflow exceedence plot for MORI1

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