Peakflow Forecasts Header

ST MARIES--NEAR SANTA
   State:  Idaho    County:  BENEWAH
   Latitude:  47 10' 35" North    Longitude:  116 29' 30" West
   Elevation:  2172 feet    Gage Datum:  2574
   Supporting WFO:  Spokane    

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.

ST MARIES--NEAR SANTA   (SATI1)
Forecasts for Water Year
2026
Ensemble Date: 2026-07-15
Forecast Period: July 15 to November 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.26 114 2026-07-29
90 % 4.31 126 2026-08-16
70 % 4.43 154 2026-09-13
50 % 4.52 177 2026-10-08
30 % 4.63 207 2026-10-24
10 % 4.85 278 2026-10-31
05 % 4.97 320 2026-11-01

Peakflow exceedence plot for SATI1

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