Peakflow Forecasts Header

PAYETTE--NEAR EMMETT
   State:  Idaho    County:  GEM
   Latitude:  43 55' 50" North    Longitude:  116 26' 30" West
   Elevation:  2400 feet
   Supporting WFO:  Boise    
   Action Stage:  10'   Flood Stage:  10.5'   Moderate Flood Stage:  12'
   Major Flood Stage:  
15'

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.

PAYETTE--NEAR EMMETT   (EMMI1)
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 % 3.28 2068 2025-10-05
90 % 3.29 2084 2025-10-20
70 % 3.38 2180 2025-10-26
50 % 3.45 2268 2025-10-29
30 % 3.57 2415 2025-11-01
10 % 4.02 2980 2025-11-01
05 % 4.20 3209 2025-11-01

Peakflow exceedence plot for EMMI1

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