Peakflow Forecasts Header

SF PALOUSE--AT PULLMAN
   State:  Washington    County:  WHITMAN
   Latitude:  46 43' 57" North    Longitude:  117 10' 48" West
   Elevation:  2326 feet
   Supporting WFO:  Spokane    
   Action Stage:  5.5'   Flood Stage:  7'   Moderate Flood Stage:  8'
   Major Flood Stage:  
9'

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.

SF PALOUSE--AT PULLMAN   (PULW1)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-08
Forecast Period: December 8 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.15 672 2022-01-04
90 % 4.26 716 2022-01-11
70 % 4.65 892 2022-02-16
50 % 4.86 997 2022-03-01
30 % 5.53 1350 2022-03-11
10 % 6.02 1640 2022-03-28
05 % 6.40 1895 2022-03-31

Peakflow exceedence plot for PULW1

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