Peakflow Forecasts Header

TIETON--RIMROCK LAKE NEAR RIMROCK
   State:  Washington    County:  YAKIMA
   Latitude:  46 39' 0" North    Longitude:  121 7' 59" West
   Elevation:  2926 feet
   Supporting WFO:  Pendleton    
   Inflow Data  

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.

TIETON--RIMROCK LAKE NEAR RIMROCK   (RILW1)
Forecasts for Water Year
2025
Ensemble Date: 2025-07-02
Forecast Period: July 2 to November 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 529 2025-07-02
90 % 529 2025-07-02
70 % 532 2025-07-14
50 % 570 2025-09-06
30 % 784 2025-10-20
10 % 1428 2025-10-30
05 % 2769 2025-10-31

Peakflow exceedence plot for RILW1

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