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 24, 2025
Mean Stage: 691.20 ft  Mean Flow: 768 cfs
Max Stage: 694.06 ft  Max Flow: 5030 cfs (1935)
Min Stage:  690.11 ft   Min Flow: 207 cfs (2016)

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