Peakflow Forecasts Header

CLEARWATER--AT SPALDING
   State:  Idaho    County:  NEZ PERCE
   Latitude:  46 26' 54" North    Longitude:  116 49' 32" West
   Elevation:  770 feet
   Supporting WFO:  Spokane    
   Action Stage:  17'   Flood Stage:  18'   Moderate Flood Stage:  19'
   Major Flood Stage:  
19.4'

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.

CLEARWATER--AT SPALDING   (SPDI1)
Forecasts for Water Year
2022
Ensemble Date: 2021-12-07
Forecast Period: December 7 to April 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 5.80 11662 2021-12-30
90 % 5.93 12230 2022-02-02
70 % 7.33 18813 2022-03-09
50 % 8.39 24704 2022-03-24
30 % 9.57 32091 2022-03-28
10 % 10.59 39271 2022-04-01
05 % 12.95 58468 2022-04-01

Peakflow exceedence plot for SPDI1

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