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Chehalis River at Porter

Highest listed crest 53.17 ftFlood stage 48.0 ft175 crests since 1946

The Chehalis River at Porter crested at major flood stage 2 times among the 175 crests the National Weather Service lists from 1946 to 2025. The highest, 53.17 ft on December 5, 2007, was major flooding, 5.17 feet above flood stage. 3 other gauges on the Chehalis River crested above flood stage within a week of it, 3 at their own highest listed crest.

The gauge

Highest listed crest
53.17 ft
December 5, 2007; 10,200 cubic feet per second
Flood stage
48.0 ft
Major flooding from 52.0 ft
Crests at major
2
36th of 70 gauges in Washington
Most recent flood crest
December 21, 2025
48.14 ft, minor flooding
Location
Grays Harbor County
Washington

Flood stages

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

Flood categories, Chehalis River at Porter
Action stage45.51Feb 24, 2021The level at which the NWS or its partners begin to take action
Flood stage (minor)48.09Dec 21, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage50.00—Some inundation of structures and roads near the stream
Major flood stage52.02Jan 8, 2022Extensive inundation of structures and roads

Every listed crest

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

Listed crests at the Chehalis River at Porter, 1946 to 2025 -200204060ft Flood stage 48.0 ftMajor 52.0 ft Dec 14, 1946: -1.00 ft, below flood stage; 26,200 cubic feet per secondJan 26, 1947: -1.00 ft, below flood stage; 26,300 cubic feet per secondFeb 4, 1947: -1.00 ft, below flood stage; 23,600 cubic feet per secondFeb 15, 1947: -1.00 ft, below flood stage; 20,400 cubic feet per secondJan 5, 1948: -1.00 ft, below flood stage; 23,000 cubic feet per secondDec 4, 1948: -1.00 ft, below flood stage; 30,500 cubic feet per secondDec 13, 1948: -1.00 ft, below flood stage; 29,400 cubic feet per secondFeb 19, 1949: -1.00 ft, below flood stage; 31,400 cubic feet per secondFeb 24, 1949: -1.00 ft, below flood stage; 33,500 cubic feet per secondDec 28, 1949: -1.00 ft, below flood stage; 30,500 cubic feet per secondJan 24, 1950: -1.00 ft, below flood stage; 29,400 cubic feet per secondFeb 16, 1950: -1.00 ft, below flood stage; 21,400 cubic feet per secondMar 2, 1950: -1.00 ft, below flood stage; 26,800 cubic feet per secondNov 26, 1950: -1.00 ft, below flood stage; 21,900 cubic feet per secondDec 25, 1950: -1.00 ft, below flood stage; 23,600 cubic feet per secondJan 5, 1951: -1.00 ft, below flood stage; 20,300 cubic feet per secondJan 20, 1951: -1.00 ft, below flood stage; 22,600 cubic feet per secondFeb 11, 1951: -1.00 ft, below flood stage; 36,100 cubic feet per secondFeb 6, 1952: 18.70 ft, below flood stage; 21,900 cubic feet per secondJan 11, 1953: 19.45 ft, below flood stage; 23,400 cubic feet per secondJan 20, 1953: 18.30 ft, below flood stage; 20,300 cubic feet per secondJan 25, 1953: 19.33 ft, below flood stage; 23,000 cubic feet per secondJan 31, 1953: 19.93 ft, below flood stage; 24,800 cubic feet per secondDec 12, 1953: 21.31 ft, below flood stage; 33,700 cubic feet per secondJan 7, 1954: 22.27 ft, below flood stage; 40,800 cubic feet per secondJan 24, 1954: 18.41 ft, below flood stage; 20,600 cubic feet per secondFeb 15, 1954: 19.05 ft, below flood stage; 22,200 cubic feet per secondFeb 23, 1954: 20.33 ft, below flood stage; 28,200 cubic feet per secondJan 2, 1955: 18.03 ft, below flood stage; 19,200 cubic feet per secondNov 6, 1955: 19.06 ft, below flood stage; 21,200 cubic feet per secondNov 28, 1955: 20.28 ft, below flood stage; 27,900 cubic feet per secondDec 14, 1955: 20.57 ft, below flood stage; 29,400 cubic feet per secondDec 23, 1955: 22.04 ft, below flood stage; 38,900 cubic feet per secondJan 7, 1956: 20.32 ft, below flood stage; 28,100 cubic feet per secondJan 17, 1956: 18.67 ft, below flood stage; 20,200 cubic feet per secondMar 25, 1956: 18.75 ft, below flood stage; 20,400 cubic feet per secondDec 12, 1956: 19.35 ft, below flood stage; 23,600 cubic feet per secondFeb 28, 1957: 19.10 ft, below flood stage; 22,800 cubic feet per secondDec 28, 1957: 18.82 ft, below flood stage; 22,000 cubic feet per secondNov 14, 1958: 19.16 ft, below flood stage; 23,000 cubic feet per secondNov 21, 1958: 18.41 ft, below flood stage; 20,700 cubic feet per secondJan 26, 1959: 19.60 ft, below flood stage; 24,300 cubic feet per secondNov 23, 1959: 20.71 ft, below flood stage; 30,100 cubic feet per secondNov 26, 1960: 20.16 ft, below flood stage; 27,300 cubic feet per secondJan 18, 1961: 19.04 ft, below flood stage; 22,600 cubic feet per secondFeb 23, 1961: 21.04 ft, below flood stage; 32,000 cubic feet per secondMar 16, 1961: 18.95 ft, below flood stage; 22,400 cubic feet per secondDec 23, 1961: 18.49 ft, below flood stage; 21,000 cubic feet per secondNov 22, 1962: 20.77 ft, below flood stage; 30,400 cubic feet per secondNov 28, 1962: 20.96 ft, below flood stage; 31,600 cubic feet per secondFeb 5, 1963: 19.43 ft, below flood stage; 23,800 cubic feet per secondJan 20, 1964: 19.74 ft, below flood stage; 25,500 cubic feet per secondJan 27, 1964: 21.99 ft, below flood stage; 38,500 cubic feet per secondDec 3, 1964: 19.66 ft, below flood stage; 25,100 cubic feet per secondDec 25, 1964: 20.46 ft, below flood stage; 28,800 cubic feet per secondJan 31, 1965: 21.36 ft, below flood stage; 34,000 cubic feet per secondJan 8, 1966: 20.21 ft, below flood stage; 26,300 cubic feet per secondMar 11, 1966: 19.26 ft, below flood stage; 21,300 cubic feet per secondDec 15, 1966: 21.73 ft, below flood stage; 35,700 cubic feet per secondJan 22, 1967: 20.61 ft, below flood stage; 28,700 cubic feet per secondJan 30, 1967: 20.08 ft, below flood stage; 25,500 cubic feet per secondFeb 6, 1968: 20.46 ft, below flood stage; 27,800 cubic feet per secondFeb 21, 1968: 19.50 ft, below flood stage; 22,500 cubic feet per secondDec 12, 1968: 19.07 ft, below flood stage; 20,400 cubic feet per secondJan 8, 1969: 19.43 ft, below flood stage; 22,200 cubic feet per secondFeb 12, 1969: 19.16 ft, below flood stage; 20,800 cubic feet per secondJan 21, 1970: 19.08 ft, below flood stage; 20,400 cubic feet per secondJan 28, 1970: 20.70 ft, below flood stage; 29,200 cubic feet per secondDec 9, 1970: 21.57 ft, below flood stage; 34,600 cubic feet per secondJan 1, 1971: 20.04 ft, below flood stage; 25,200 cubic feet per secondJan 19, 1971: 21.10 ft, below flood stage; 31,600 cubic feet per secondJan 27, 1971: 23.50 ft, below flood stage; 49,600 cubic feet per secondMar 14, 1971: 20.21 ft, below flood stage; 26,300 cubic feet per secondJan 13, 1972: 19.89 ft, below flood stage; 24,400 cubic feet per secondJan 22, 1972: 23.88 ft, below flood stage; 55,600 cubic feet per secondMar 2, 1972: 21.41 ft, below flood stage; 33,500 cubic feet per secondMar 7, 1972: 21.21 ft, below flood stage; 32,300 cubic feet per secondDec 28, 1972: 20.51 ft, below flood stage; 28,100 cubic feet per secondJan 17, 1974: 22.22 ft, below flood stage; 39,100 cubic feet per secondJan 16, 1975: 21.19 ft, below flood stage; 32,100 cubic feet per secondDec 5, 1975: 23.36 ft, below flood stage; 48,100 cubic feet per secondDec 28, 1975: 19.13 ft, below flood stage; 20,600 cubic feet per secondJan 17, 1976: 21.83 ft, below flood stage; 36,400 cubic feet per secondMar 10, 1977: 18.34 ft, below flood stage; 17,500 cubic feet per secondDec 4, 1977: 22.08 ft, below flood stage; 38,200 cubic feet per secondDec 15, 1977: 22.18 ft, below flood stage; 38,900 cubic feet per secondFeb 9, 1979: 19.46 ft, below flood stage; 22,300 cubic feet per secondDec 19, 1979: 20.60 ft, below flood stage; 28,600 cubic feet per secondJan 14, 1980: 19.95 ft, below flood stage; 24,800 cubic feet per secondDec 28, 1980: 21.17 ft, below flood stage; 32,000 cubic feet per secondFeb 21, 1981: 21.16 ft, below flood stage; 32,000 cubic feet per secondDec 8, 1981: 20.54 ft, below flood stage; 28,200 cubic feet per secondJan 19, 1982: 19.78 ft, below flood stage; 23,900 cubic feet per secondJan 26, 1982: 21.39 ft, below flood stage; 33,300 cubic feet per secondFeb 18, 1982: 21.35 ft, below flood stage; 33,100 cubic feet per secondDec 6, 1982: 20.60 ft, below flood stage; 23,900 cubic feet per secondDec 19, 1982: 20.65 ft, below flood stage; 24,100 cubic feet per secondJan 8, 1983: 20.83 ft, below flood stage; 24,800 cubic feet per secondNov 20, 1983: 20.27 ft, below flood stage; 23,000 cubic feet per secondNov 26, 1983: 19.51 ft, below flood stage; 20,000 cubic feet per secondJan 26, 1984: 20.30 ft, below flood stage; 23,200 cubic feet per secondNov 30, 1984: 19.97 ft, below flood stage; 21,800 cubic feet per secondNov 25, 1986: 23.36 ft, below flood stage; 45,900 cubic feet per secondMar 5, 1987: 21.62 ft, below flood stage; 30,200 cubic feet per secondJan 17, 1988: -1.00 ft, below flood stage; 22,000 cubic feet per secondJan 1, 1989: 19.21 ft, below flood stage; 18,900 cubic feet per secondDec 6, 1989: 19.95 ft, below flood stage; 21,300 cubic feet per secondJan 11, 1990: 24.52 ft, below flood stage; 60,400 cubic feet per secondJan 20, 1990: 19.88 ft, below flood stage; 20,000 cubic feet per secondJan 31, 1990: 20.67 ft, below flood stage; 24,800 cubic feet per secondFeb 12, 1990: 22.87 ft, below flood stage; 40,000 cubic feet per secondNov 26, 1990: 23.17 ft, below flood stage; 43,000 cubic feet per secondDec 6, 1990: 19.88 ft, below flood stage; 20,000 cubic feet per secondJan 14, 1991: 19.97 ft, below flood stage; 20,400 cubic feet per secondApr 6, 1991: 22.84 ft, below flood stage; 39,700 cubic feet per secondJan 31, 1992: 20.69 ft, below flood stage; 24,900 cubic feet per secondMar 5, 1994: 18.19 ft, below flood stage; 15,500 cubic feet per secondDec 3, 1994: 20.14 ft, below flood stage; 22,200 cubic feet per secondDec 22, 1994: 22.37 ft, below flood stage; 35,600 cubic feet per secondDec 29, 1994: 21.70 ft, below flood stage; 30,700 cubic feet per secondFeb 21, 1995: 21.05 ft, below flood stage; 26,800 cubic feet per secondDec 1, 1995: 22.39 ft, below flood stage; 35,800 cubic feet per secondDec 16, 1995: 20.63 ft, below flood stage; 24,600 cubic feet per secondJan 9, 1996: 19.87 ft, below flood stage; 21,000 cubic feet per secondFeb 9, 1996: 25.22 ft, below flood stage; 80,700 cubic feet per secondApr 25, 1996: 21.56 ft, below flood stage; 29,800 cubic feet per secondJan 2, 1997: 23.43 ft, below flood stage; 46,000 cubic feet per secondMar 21, 1997: 20.71 ft, below flood stage; 25,000 cubic feet per secondJan 17, 1998: 20.53 ft, below flood stage; 24,100 cubic feet per secondNov 27, 1998: 22.28 ft, below flood stage; 40,100 cubic feet per secondDec 4, 1998: 20.99 ft, below flood stage; 30,100 cubic feet per secondDec 14, 1998: 20.11 ft, below flood stage; 24,300 cubic feet per secondDec 30, 1998: 21.28 ft, below flood stage; 32,100 cubic feet per secondJan 20, 1999: 20.76 ft, below flood stage; 28,400 cubic feet per secondJan 31, 1999: 21.10 ft, below flood stage; 30,900 cubic feet per secondFeb 26, 1999: 22.50 ft, below flood stage; 42,000 cubic feet per secondNov 27, 1999: 20.08 ft, below flood stage; 25,400 cubic feet per secondDec 18, 1999: 22.04 ft, below flood stage; 38,100 cubic feet per secondNov 16, 2001: 19.82 ft, below flood stage; 21,000 cubic feet per secondDec 3, 2001: 20.73 ft, below flood stage; 26,700 cubic feet per secondDec 19, 2001: 22.41 ft, below flood stage; 41,200 cubic feet per secondJan 9, 2002: 20.57 ft, below flood stage; 28,300 cubic feet per secondJan 27, 2002: 20.93 ft, below flood stage; 30,500 cubic feet per secondJan 20, 2005: 20.50 ft, below flood stage; 22,100 cubic feet per secondJan 13, 2006: 22.64 ft, below flood stage; 43,200 cubic feet per secondFeb 1, 2006: 22.58 ft, below flood stage; 42,700 cubic feet per secondNov 9, 2006: 21.85 ft, below flood stage; 29,400 cubic feet per secondDec 17, 2006: 21.12 ft, below flood stage; 25,100 cubic feet per secondJan 9, 2007: 21.31 ft, below flood stage; 26,200 cubic feet per secondDec 5, 2007: 53.17 ft, major flooding; 10,200 cubic feet per secondJan 9, 2009: 24.65 ft, below flood stage; 68,100 cubic feet per secondDec 15, 2010: 21.15 ft, below flood stage; 27,000 cubic feet per secondJan 18, 2011: 21.15 ft, below flood stage; 27,000 cubic feet per secondMar 17, 2012: 21.02 ft, below flood stage; 26,200 cubic feet per secondNov 21, 2012: 21.13 ft, below flood stage; 27,300 cubic feet per secondDec 5, 2012: 21.10 ft, below flood stage; 26,727 cubic feet per secondFeb 19, 2014: 21.54 ft, below flood stage; 29,800 cubic feet per secondMar 11, 2014: 20.96 ft, below flood stage; 26,200 cubic feet per secondJan 7, 2015: 21.31 ft, below flood stage; 28,300 cubic feet per secondFeb 9, 2015: 20.72 ft, below flood stage; 24,300 cubic feet per secondNov 19, 2015: 21.81 ft, below flood stage; 33,014 cubic feet per secondDec 11, 2015: 22.73 ft, below flood stage; 39,700 cubic feet per secondNov 26, 2016: 21.11 ft, below flood stage; 26,900 cubic feet per secondFeb 11, 2017: 21.79 ft, below flood stage; 31,900 cubic feet per secondDec 23, 2019: 48.58 ft, minor flooding; 26,369 cubic feet per secondJan 9, 2020: 48.99 ft, minor flooding; 32,636 cubic feet per secondJan 15, 2021: 49.18 ft, minor flooding; 30,024 cubic feet per secondFeb 24, 2021: 47.65 ft, action stage; 21,400 cubic feet per secondNov 14, 2021: 48.15 ft, minor flooding; 23,828 cubic feet per secondJan 8, 2022: 52.01 ft, major flooding; 61,896 cubic feet per secondJan 13, 2022: 48.36 ft, minor flooding; 24,894 cubic feet per secondMar 3, 2022: 48.79 ft, minor flooding; 27,188 cubic feet per secondDec 8, 2023: 48.54 ft, minor flooding; 25,836 cubic feet per secondDec 12, 2025: 49.64 ft, minor flooding; 33,994 cubic feet per secondDec 21, 2025: 48.14 ft, minor flooding; 23,778 cubic feet per second Highest, 53.17 ft, Dec 5, 2007 19501960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Chehalis River at Porter 1940s: 0 1950s: 0 1960s: 0 1970s: 0 1980s: 0 1990s: 0 2000s: 1 2010s: 1 2020s: 9 9 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.

Highest crests

The 50 highest of 175 listed crests.

Highest listed crests, Chehalis River at Porter
1Dec 5, 200753.17+5.17Major10,200
2Jan 8, 202252.01+4.01Major61,896
3Dec 12, 202549.64+1.64Minor33,994
4Jan 15, 202149.18+1.18Minor30,024
5Jan 9, 202048.99+0.99Minor32,636
6Mar 3, 202248.79+0.79Minor27,188
7Dec 23, 201948.58+0.58Minor26,369
8Dec 8, 202348.54+0.54Minor25,836
9Jan 13, 202248.36+0.36Minor24,894
10Nov 14, 202148.15+0.15Minor23,828
11Dec 21, 202548.14+0.14Minor23,778
12Feb 24, 202147.65−0.35Action21,400
13Feb 9, 199625.22−22.78Below flood stage80,700
14Jan 9, 200924.65−23.35Below flood stage68,100
15Jan 11, 199024.52−23.48Below flood stage60,400
16Jan 22, 197223.88−24.12Below flood stage55,600
17Jan 27, 197123.50−24.50Below flood stage49,600
18Jan 2, 199723.43−24.57Below flood stage46,000
19Dec 5, 197523.36−24.64Below flood stage48,100
20Nov 25, 198623.36−24.64Below flood stage45,900
21Nov 26, 199023.17−24.83Below flood stage43,000
22Feb 12, 199022.87−25.13Below flood stage40,000
23Apr 6, 199122.84−25.16Below flood stage39,700
24Dec 11, 201522.73−25.27Below flood stage39,700
25Jan 13, 200622.64−25.36Below flood stage43,200
26Feb 1, 200622.58−25.42Below flood stage42,700
27Feb 26, 199922.50−25.50Below flood stage42,000
28Dec 19, 200122.41−25.59Below flood stage41,200
29Dec 1, 199522.39−25.61Below flood stage35,800
30Dec 22, 199422.37−25.63Below flood stage35,600
31Nov 27, 199822.28−25.72Below flood stage40,100
32Jan 7, 195422.27−25.73Below flood stage40,800
33Jan 17, 197422.22−25.78Below flood stage39,100
34Dec 15, 197722.18−25.82Below flood stage38,900
35Dec 4, 197722.08−25.92Below flood stage38,200
36Dec 23, 195522.04−25.96Below flood stage38,900
37Dec 18, 199922.04−25.96Below flood stage38,100
38Jan 27, 196421.99−26.01Below flood stage38,500
39Nov 9, 200621.85−26.15Below flood stage29,400
40Jan 17, 197621.83−26.17Below flood stage36,400
41Nov 19, 201521.81−26.19Below flood stage33,014
42Feb 11, 201721.79−26.21Below flood stage31,900
43Dec 15, 196621.73−26.27Below flood stage35,700
44Dec 29, 199421.70−26.30Below flood stage30,700
45Mar 5, 198721.62−26.38Below flood stage30,200
46Dec 9, 197021.57−26.43Below flood stage34,600
47Apr 25, 199621.56−26.44Below flood stage29,800
48Feb 19, 201421.54−26.46Below flood stage29,800
49Mar 2, 197221.41−26.59Below flood stage33,500
50Jan 26, 198221.39−26.61Below flood stage33,300

The worst floods along the Chehalis River

For this gauge's highest crests, the other gauges on the Chehalis River that crested above flood stage within a week.

December 5, 2007: 53.17 ft here, major flooding

  • DotyWA · Dec 3, 2007 · 336.26 ft · Major · its highest
  • CentraliaWA · Dec 4, 2007 · 178.10 ft · Major · its highest
  • Grand MoundWA · Dec 4, 2007 · 147.26 ft · Major · its highest

January 8, 2022: 52.01 ft here, major flooding

  • Grand MoundWA · Jan 7, 2022 · 145.21 ft · Major
  • CentraliaWA · Jan 7, 2022 · 174.93 ft · Moderate
  • DotyWA · Jan 6, 2022 · 321.11 ft · Minor

December 12, 2025: 49.64 ft here, minor flooding

  • Grand MoundWA · Dec 11, 2025 · 143.27 ft · Moderate
  • DotyWA · Dec 9, 2025 · 318.47 ft · Minor
  • CentraliaWA · Dec 11, 2025 · 168.59 ft · Minor

Gauges on the Chehalis River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Chehalis River
DotyWA318.0336.26 ft, Dec 3, 20071
CentraliaWA168.5178.10 ft, Dec 4, 20071
Grand MoundWA141.0147.26 ft, Dec 4, 20072
Porter this gaugeWA48.053.17 ft, Dec 5, 20072

Other gauges in Grays Harbor County

Flood gauges in Grays Harbor County
Satsop38.042.79 ft, Jan 22, 19351
Montesano42.545.02 ft, Dec 10, 19561

Grays Harbor County: every hazard · River floods across the country · Washington

NOAA National Water Prediction Service, gauge CRPW1, 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.