Peakflow Forecasts Header

HANGMAN CREEK--AT SPOKANE
   State:  Washington    County:  SPOKANE
   Latitude:  47 38' 57" North    Longitude:  117 27' 18" West
   Elevation:  1717 feet
   Supporting WFO:  Spokane    
   Action Stage:  10'   Flood Stage:  11'   Moderate Flood Stage:  13'
   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.

HANGMAN CREEK--AT SPOKANE   (HAGW1)
Forecasts for Water Year 2026
Ensemble Date: 2026-05-14
 Forecast Period: May 14 to September 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 1.70 69 2026-05-14
90 % 1.70 69 2026-05-14
70 % 1.70 69 2026-05-14
50 % 1.70 69 2026-05-14
30 % 1.70 69 2026-05-14
10 % 1.70 69 2026-05-14
05 % 1.70 69 2026-05-14

Peakflow exceedence plot for HAGW1

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