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JOHNSON CREEK--AT SYCAMORE (SYCO3)
   State:  Oregon    County:  Multnomah
   Latitude:  45 28' 40" North    Longitude:  122 30' 24" West
   Elevation:  228 feet
   Supporting WFO:  Portland    NWS Official River Forecasts Click Here
   Action Stage:  10'   Flood Stage:  11'
   Major Flood Stage:  14'

   Record Stage:  15.33'  Record Flow:  2620 cfs
   Date of Record:  December 22, 1964
Daily Historical Flow Statistics
for December 07

Mean Stage: 3.46 ft  Mean Flow: 135 cfs
Max Stage: 12.40 ft  Max Flow: 1580 cfs (2016)
Min Stage:  1.14 ft   Min Flow: 1 cfs (1977)

Statistics based on water years: 1941-2020
The 4-10 Day Trend Forecast is based on model guidance only. Daily variation and uncertainty of forecasts during this period is high.

Hydrograph plot for SYCO3

For Data Used In Plot   "label


Hydrograph plot for SYCO3

For Data Used In Plot   "label