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: 2025-05-12
Forecast Period: May 12 to September 1
Exceedence
Probability
Inflow
CFS
Probable
Date of Peak
95 % 1342 2025-05-24
90 % 1390 2025-05-26
70 % 1684 2025-05-30
50 % 1908 2025-06-01
30 % 2064 2025-06-07
10 % 2479 2025-06-16
05 % 3128 2025-06-21

Peakflow exceedence plot for RILW1

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