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Nehalem River near Foss, OR

River level and flood forecast · Tillamook County

Normal1.6 ftas of Mon 9:15 PM

The river is 13.4 ft below flood stage (15 ft).

Forecast to rise to 2.1 ft Mon 5 PM, below the 15 ft flood stage.

Flow: 97 cubic feet per second (USGS).

The last 7 days and the forecast

-50510152025TueThuSatMonWedFriSunAction 13 ftFlood 15 ftModerate 20 ftMajor 24 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 8:25 AM. Forecasts change as rain falls and as upstream water arrives.

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Flood stages

Major flood stage24 ft
Moderate flood stage20 ft
Flood stage15 ft
Action stage13 ft
Record crest (February 8, 1996)29.56 ft

What floods at each level

From the National Weather Service, highest first.

  • 27 ftflooding is comparable to that of the flood of February 1996, especially during the high tide.
  • 24 ftexpect major flooding in the town of Nehalem and surrounding areas, with the worst flooding during high tide. Wide spread flooding of numerous roads and buildings occurs at this stage.
  • 20 ftflooding of some buildings in the town of Nehalem begins, with the situation worsening during the high tide. Also expect widespread low land flooding and numerous flooded rural roads from the Foss gauging station downstream to Nehalem.
  • 18 ftexpect widespread flooding of low lying farm land and structures downstream of the Foss gauging station to Nehalem. Street flooding in the town of Nehalem begins at this point, usually during the high tide.
  • 15 ftexpect minor flooding of low lying farm land and structures.

Highest crests on record

  1. 29.56 ft — February 8, 1996
  2. 25.07 ft — January 9, 1990
  3. 24.3 ft — December 3, 2007
  4. 23.4 ft — December 9, 2015
  5. 23.11 ft — January 20, 1972

Recent crests: 15.07 ft (March 14, 2026) · 17.14 ft (December 19, 2025) · 16.55 ft (December 9, 2025) · 15.91 ft (December 6, 2023) · 18.27 ft (January 7, 2022)

Up and down the river, and nearby

See it on the live map →Radar & warnings for Tillamook CountyNWS gauge pageUSGS gauge 14301000

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (FSSO3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.