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: 2025-11-16
Forecast Period: November 16 to March 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.40 132 2025-12-06
90 % 5.37 460 2025-12-13
70 % 5.93 750 2026-01-11
50 % 6.46 1098 2026-02-04
30 % 7.68 2217 2026-02-20
10 % 10.00 5602 2026-02-26
05 % 11.56 8524 2026-03-01

Peakflow exceedence plot for SATI1

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