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
2024
Ensemble Date: 2024-04-25
Forecast Period: April 25 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 1.53 19 2024-05-03
90 % 1.53 19 2024-05-03
70 % 1.56 20 2024-05-07
50 % 1.64 23 2024-05-17
30 % 1.72 26 2024-05-23
10 % 4.24 708 2024-06-06
05 % 4.46 803 2024-06-12

Peakflow exceedence plot for PULW1

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