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
2024
Ensemble Date: 2024-04-19
Forecast Period: April 19 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 31.31 3430 2024-05-07
90 % 31.32 3436 2024-05-20
70 % 31.33 3445 2024-06-15
50 % 31.34 3458 2024-07-22
30 % 31.37 3503 2024-07-23
10 % 31.82 4123 2024-07-23
05 % 31.99 4360 2024-07-24

Peakflow exceedence plot for HLKW1

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