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This probabilistic forecast is issued by the Northwest River Forecast Center.
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About this graph
Forecasts for the Siletz River at Siletz are issued routinely year-round.
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Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 25
Moderate Flood Stage: 20
Flood Stage: 16
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 31.60 ft on 11/20/1921
(2) 28.62 ft on 11/26/1999
(3) 27.32 ft on 01/28/1965
(4) 26.71 ft on 03/31/1931
(5) 25.76 ft on 01/11/1972
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 18.08 ft on 11/12/2021
(2) 21.62 ft on 01/13/2021
(3) 16.47 ft on 11/25/2016
(4) 18.96 ft on 12/18/2015
(5) 21.50 ft on 12/07/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.00 ft on 09/19/1963
(2) 2.04 ft on 09/17/2021
(3) 2.14 ft on 08/25/2015
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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
25 expect major flooding, with evacuations of residences and areas along the Siletz between mile post 2.5 and mile post 5 on State Highway 229 near Sunset Landing downstream to Coyote Rock. Stay tuned to local media sources and law enforcement information for details.
20 expect widespread flooding downstream. Increased flooding can be expected in the housing development downstream from Mack Landing. Numerous private roads and a trailor park between mile post 2.5 and mile post 5 near Sunset Landing to Coyote Rock are flooded. Flooding may be exacerbated during high tide.
18 expect minor flooding of a small housing development near mile post 8 down stream from Mack Landing. Widespread lowland and pasture land flooding also occurs at this level. Flooding may be exacerbated during high tide.
16 expect minor lowland flooding and minor flooding of some structures and roads along the Siletz River. Flooding may be exacerbated during high tide.

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
10-day Forecast/Trend, Northwest River Forecast Center
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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5241 NE 122nd Avenue
Portland, OR 97230-1089
(503) 261-9246
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Page last modified: 2-Nov-2020 7:27 PM
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