Peakflow Forecasts Header

S UMPQUA--AT TILLER
   State:  Oregon    County:  DOUGLAS
   Latitude:  42 55' 48" North    Longitude:  122 56' 48" West
   Elevation:  1040 feet
   Supporting WFO:  Medford    
   Action Stage:  16'   Flood Stage:  18'   Moderate Flood Stage:  21'
   Major Flood Stage:  
25'

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.

S UMPQUA--AT TILLER   (TILO3)
Forecasts for Water Year
2025
Ensemble Date: 2025-05-12
Forecast Period: May 12 to September 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 3.28 930 2025-05-13
90 % 3.28 930 2025-05-13
70 % 3.28 930 2025-05-13
50 % 3.68 1150 2025-05-30
30 % 4.23 1519 2025-06-05
10 % 5.20 2317 2025-06-11
05 % 6.74 3944 2025-06-17

Peakflow exceedence plot for TILO3

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