LONG TOM − FERN RIDGE DAM (FRNO3)
   State:  Oregon
   County:  Lane
   Latitude:  44 7' 24" North
   Longitude:  123 17' 54" West
   Elevation:  374 ft

   Supporting NWS Forecast Office: WFO Portland

   
Click for NWS Official River Forecasts for FRNO3
   

Daily Historical Statistics for May 30, 2026
Mean Stage: 1.97 ft  Mean Flow: 103 cfs
Max Stage: 4.29 ft  Max Flow: 1160 cfs (1998)
Min Stage:  1.38 ft   Min Flow: 6 cfs (1977)

Statistics based on water years: 1940-2025
* 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 FRNO3

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Hydrograph plot for FRNO3

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Hydrograph plot for FRNO3

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Hydrograph plot for FRNO3

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