Peakflow Forecasts Header

WEISER--NEAR WEISER
   State:  Idaho    County:  WASHINGTON
   Latitude:  44 16' 3" North    Longitude:  116 46' 16" West
   Elevation:  2206 feet
   Supporting WFO:  Boise    
   Action Stage:  9'   Flood Stage:  9.5'   Moderate Flood Stage:  12'
   Major Flood Stage:  13'

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.

WEISER--NEAR WEISER   (WSRI1)
Forecasts for Water Year 2026
Ensemble Date: 2026-06-14
 Forecast Period: June 14 to October 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 4.34 260 2026-07-04
90 % 4.35 262 2026-07-10
70 % 4.36 266 2026-08-15
50 % 4.38 276 2026-08-16
30 % 4.43 301 2026-08-17
10 % 4.59 381 2026-09-17
05 % 4.82 525 2026-09-24

Peakflow exceedence plot for WSRI1

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