SANDY − NEAR MARMOT (SRMO3)
   State:  Oregon
   County:  Clackamas
   Latitude:  45 23' 30" North
   Longitude:  122 7' 40" West
   Elevation:  730 ft

   Supporting NWS Forecast Office: WFO Portland

   
Click for NWS Official River Forecasts for SRMO3
Daily Historical Statistics for October 14, 2025
Mean Stage: 690.89 ft  Mean Flow: 564 cfs
Max Stage: 693.04 ft  Max Flow: 2790 cfs (2017)
Min Stage:  690.12 ft   Min Flow: 210 cfs (1932)

Statistics based on water years: 1912-2024
* statistics estimated based on current rating

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for SRMO3


For Data Used In Plot   "label