(DLLO3) TUALATIN--NEAR DILLEY Station Summary

TUALATIN--NEAR DILLEY (DLLO3)

   State: Oregon    County: WASHINGTON
   Latitude: 45 28' 30" North    Longitude: 123 7' 23" West
   Elevation: 147 feet
   Supporting WFO: Portland    NWS Official River Forecasts Click Here
   Action Stage: 16'   Flood Stage: 17.5'
   Major Flood Stage: 19.5'

   Record Stage: 19.34'  Record Flow: 17100 cfs
   Date of Record: December 22, 1964

Daily Historical Flow Statistics
for July 03

Mean Stage: 9.85 ft Mean Flow: 105 cfs
Max Stage: 11.86 ft Max Flow: 275 cfs (2015)
Min Stage: 8.22 ft Min Flow: 11 cfs (1965)

Statistics based on water years: 1940-2020

The 4-10 Day Trend Forecast is based on model guidance only. Daily variation and uncertainty of forecasts during this period is high.

For Data Used In Plot

For Data Used In Plot