Peakflow Forecasts Header

YAKIMA--AT KIONA
   State:  Washington    County:  YAKIMA
   Latitude:  46 15' 11" North    Longitude:  119 28' 37" West
   Elevation:  454 feet
   Supporting WFO:  Pendleton    
   Action Stage:  11'   Flood Stage:  13'   Moderate Flood Stage:  14.5'
   Major Flood Stage:  
16'

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.

YAKIMA--AT KIONA   (KIOW1)
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 % 6.95 3628 2022-01-01
90 % 7.48 4634 2022-01-10
70 % 8.58 6914 2022-01-27
50 % 10.45 11246 2022-02-22
30 % 11.45 13756 2022-03-14
10 % 13.42 19354 2022-03-26
05 % 14.76 23363 2022-03-28

Peakflow exceedence plot for KIOW1

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