Peakflow Forecasts Header

YAKIMA--NEAR HORLICK
   State:  Washington    County:  KITTITAS
   Latitude:  47 7' 27" North    Longitude:  120 44' 21" West
   Elevation:  1700 feet
   Supporting WFO:  Pendleton    
   Action Stage:  35.5'   Flood Stage:  36'   Moderate Flood Stage:  37'
   Major Flood Stage:  
38.5'

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--NEAR HORLICK   (HLKW1)
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 % 29.96 1951 2021-12-26
90 % 30.23 2213 2022-01-01
70 % 30.86 2883 2022-01-19
50 % 32.58 5325 2022-02-09
30 % 33.58 7114 2022-03-05
10 % 35.15 10862 2022-03-26
05 % 36.81 15873 2022-03-29

Peakflow exceedence plot for HLKW1

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