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Siletz River at Siletz

Highest listed crest 28.62 ftFlood stage 16.0 ft60 crests since 1946

The Siletz River at Siletz crested at major flood stage 5 times among the 60 crests the National Weather Service lists from 1946 to 2025. The highest, 28.62 ft on November 26, 1999, was major flooding, 12.62 feet above flood stage.

The gauge

Highest listed crest
28.62 ft
November 26, 1999; 53,800 cubic feet per second
Flood stage
16.0 ft
Major flooding from 25.0 ft
Crests at major
5
17th of 100 gauges in Oregon
Most recent flood crest
December 19, 2025
21.48 ft, moderate flooding
Location
Lincoln County
Near Newport (10.0 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Siletz River at Siletz
Action stage12.01Feb 1, 2003The level at which the NWS or its partners begin to take action
Flood stage (minor)16.037Dec 10, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage20.017Dec 19, 2025Some inundation of structures and roads near the stream
Major flood stage25.05Nov 26, 1999Extensive inundation of structures and roads

Every listed crest

60 crests from 1946 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Siletz River at Siletz, 1946 to 2025 15202530ft Flood stage 16.0 ftMajor 25.0 ft Dec 15, 1946: 24.53 ft, moderate flooding; 28,000 cubic feet per secondFeb 22, 1948: 20.44 ft, moderate flooding; 21,900 cubic feet per secondFeb 17, 1949: 25.17 ft, major flooding; 29,000 cubic feet per secondJan 18, 1953: 22.26 ft, moderate flooding; 24,600 cubic feet per secondNov 24, 1960: 22.12 ft, moderate flooding; 24,400 cubic feet per secondNov 20, 1962: 23.40 ft, moderate flooding; 26,300 cubic feet per secondDec 22, 1964: 25.74 ft, major flooding; 29,800 cubic feet per secondJan 28, 1965: 27.32 ft, major flooding; 32,200 cubic feet per secondJan 18, 1970: 16.83 ft, minor flooding; 17,200 cubic feet per secondJan 16, 1971: 17.39 ft, minor flooding; 18,100 cubic feet per secondJan 11, 1972: 25.76 ft, major flooding; 31,800 cubic feet per secondJan 16, 1974: 19.27 ft, minor flooding; 20,900 cubic feet per secondNov 25, 1977: 19.88 ft, minor flooding; 21,800 cubic feet per secondDec 2, 1977: 19.86 ft, minor flooding; 21,700 cubic feet per secondDec 13, 1977: 20.76 ft, moderate flooding; 23,100 cubic feet per secondDec 25, 1980: 22.95 ft, moderate flooding; 26,500 cubic feet per secondFeb 20, 1982: 19.51 ft, minor flooding; 21,400 cubic feet per secondDec 4, 1982: 17.09 ft, minor flooding; 17,800 cubic feet per secondDec 16, 1982: 16.84 ft, minor flooding; 17,400 cubic feet per secondJan 4, 1983: 17.45 ft, minor flooding; 18,300 cubic feet per secondFeb 23, 1986: 16.91 ft, minor flooding; 17,100 cubic feet per secondFeb 1, 1987: 18.86 ft, minor flooding; 20,000 cubic feet per secondDec 10, 1987: 18.33 ft, minor flooding; 19,200 cubic feet per secondJan 14, 1988: 17.49 ft, minor flooding; 17,900 cubic feet per secondDec 4, 1989: 17.01 ft, minor flooding; 17,200 cubic feet per secondJan 7, 1990: 16.41 ft, minor flooding; 16,300 cubic feet per secondApr 5, 1991: 19.21 ft, minor flooding; 20,500 cubic feet per secondFeb 24, 1994: 17.77 ft, minor flooding; 18,300 cubic feet per secondNov 30, 1994: 16.76 ft, minor flooding; 16,800 cubic feet per secondDec 27, 1994: 17.21 ft, minor flooding; 17,500 cubic feet per secondFeb 19, 1995: 18.06 ft, minor flooding; 18,800 cubic feet per secondNov 11, 1995: 16.33 ft, minor flooding; 16,200 cubic feet per secondNov 29, 1995: 20.35 ft, moderate flooding; 22,200 cubic feet per secondFeb 7, 1996: 24.49 ft, moderate flooding; 34,700 cubic feet per secondApr 23, 1996: 17.02 ft, minor flooding; 19,400 cubic feet per secondNov 19, 1996: 18.76 ft, minor flooding; 22,700 cubic feet per secondDec 26, 1996: 18.38 ft, minor flooding; 22,000 cubic feet per secondNov 26, 1998: 16.56 ft, minor floodingDec 2, 1998: 16.80 ft, minor floodingDec 28, 1998: 24.72 ft, moderate floodingFeb 27, 1999: 18.20 ft, minor flooding; 23,100 cubic feet per secondNov 26, 1999: 28.62 ft, major flooding; 53,800 cubic feet per secondDec 16, 1999: 17.04 ft, minor flooding; 20,400 cubic feet per secondFeb 1, 2003: 15.22 ft, action stage; 16,445 cubic feet per secondJan 29, 2004: 16.76 ft, minor flooding; 20,671 cubic feet per secondJan 10, 2006: 18.65 ft, minor flooding; 25,076 cubic feet per secondNov 7, 2006: 22.95 ft, moderate flooding; 36,200 cubic feet per secondDec 3, 2007: 19.22 ft, minor flooding; 26,300 cubic feet per secondNov 13, 2008: 19.87 ft, minor flooding; 28,000 cubic feet per secondJan 2, 2009: 20.18 ft, moderate flooding; 28,700 cubic feet per secondJan 16, 2011: 20.58 ft, moderate flooding; 29,700 cubic feet per secondNov 19, 2012: 16.79 ft, minor flooding; 20,600 cubic feet per secondDec 21, 2014: 20.33 ft, moderate flooding; 29,100 cubic feet per secondDec 7, 2015: 21.50 ft, moderate flooding; 32,200 cubic feet per secondDec 18, 2015: 18.96 ft, minor flooding; 25,700 cubic feet per secondNov 25, 2016: 16.47 ft, minor flooding; 19,900 cubic feet per secondJan 13, 2021: 21.62 ft, moderate flooding; 32,500 cubic feet per secondNov 12, 2021: 18.08 ft, minor flooding; 23,600 cubic feet per secondDec 10, 2025: 19.57 ft, minor flooding; 27,186 cubic feet per secondDec 19, 2025: 21.48 ft, moderate flooding; 32,099 cubic feet per second Highest, 28.62 ft, Nov 26, 1999 19501960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Siletz River at Siletz 1940s: 3 1950s: 1 1960s: 4 1970s: 7 1980s: 10 1990s: 18 18 2000s: 6 2010s: 6 2020s: 4 1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
  3. 6 crests measured on an earlier gauge datum are left out: 24.60 ft on Nov 22, 1909; 31.60 ft on Nov 20, 1921; 22.60 ft on Nov 25, 1927; 26.71 ft on Mar 31, 1931; 23.80 ft on Dec 6, 1933; 23.83 ft on Dec 27, 1937.

Highest crests

The 50 highest of 60 listed crests.

Highest listed crests, Siletz River at Siletz
1Nov 26, 199928.62+12.62Major53,800
2Jan 28, 196527.32+11.32Major32,200
3Jan 11, 197225.76+9.76Major31,800
4Dec 22, 196425.74+9.74Major29,800
5Feb 17, 194925.17+9.17Major29,000
6Dec 28, 199824.72+8.72Moderate—
7Dec 15, 194624.53+8.53Moderate28,000
8Feb 7, 199624.49+8.49Moderate34,700
9Nov 20, 196223.40+7.40Moderate26,300
10Dec 25, 198022.95+6.95Moderate26,500
11Nov 7, 200622.95+6.95Moderate36,200
12Jan 18, 195322.26+6.26Moderate24,600
13Nov 24, 196022.12+6.12Moderate24,400
14Jan 13, 202121.62+5.62Moderate32,500
15Dec 7, 201521.50+5.50Moderate32,200
16Dec 19, 202521.48+5.48Moderate32,099
17Dec 13, 197720.76+4.76Moderate23,100
18Jan 16, 201120.58+4.58Moderate29,700
19Feb 22, 194820.44+4.44Moderate21,900
20Nov 29, 199520.35+4.35Moderate22,200
21Dec 21, 201420.33+4.33Moderate29,100
22Jan 2, 200920.18+4.18Moderate28,700
23Nov 25, 197719.88+3.88Minor21,800
24Nov 13, 200819.87+3.87Minor28,000
25Dec 2, 197719.86+3.86Minor21,700
26Dec 10, 202519.57+3.57Minor27,186
27Feb 20, 198219.51+3.51Minor21,400
28Jan 16, 197419.27+3.27Minor20,900
29Dec 3, 200719.22+3.22Minor26,300
30Apr 5, 199119.21+3.21Minor20,500
31Dec 18, 201518.96+2.96Minor25,700
32Feb 1, 198718.86+2.86Minor20,000
33Nov 19, 199618.76+2.76Minor22,700
34Jan 10, 200618.65+2.65Minor25,076
35Dec 26, 199618.38+2.38Minor22,000
36Dec 10, 198718.33+2.33Minor19,200
37Feb 27, 199918.20+2.20Minor23,100
38Nov 12, 202118.08+2.08Minor23,600
39Feb 19, 199518.06+2.06Minor18,800
40Feb 24, 199417.77+1.77Minor18,300
41Jan 14, 198817.49+1.49Minor17,900
42Jan 4, 198317.45+1.45Minor18,300
43Jan 16, 197117.39+1.39Minor18,100
44Dec 27, 199417.21+1.21Minor17,500
45Dec 4, 198217.09+1.09Minor17,800
46Dec 16, 199917.04+1.04Minor20,400
47Apr 23, 199617.02+1.02Minor19,400
48Dec 4, 198917.01+1.01Minor17,200
49Feb 23, 198616.91+0.91Minor17,100
50Dec 16, 198216.84+0.84Minor17,400

Other gauges in Lincoln County

Flood gauges in Lincoln County
Tidewater18.029.50 ft, Feb 3, 189012
Waldport10.010.69 ft, Dec 19, 20250
Yachats14.215.65 ft, Dec 19, 20250
Chitwood12.013.30 ft, Dec 19, 20250

Lincoln County: every hazard · River floods across the country · Oregon

NOAA National Water Prediction Service, gauge SILO3, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.