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South Mayo River near Nettleridge

Highest listed crest 22.00 ftFlood stage 12.0 ft62 crests since 1963

The South Mayo River near Nettleridge crested at major flood stage 3 times among the 62 crests the National Weather Service lists from 1963 to 2024. The highest, 22.00 ft on September 22, 1979, was major flooding, 10.00 feet above flood stage.

The gauge

Highest listed crest
22.00 ft
September 22, 1979; 20,600 cubic feet per second
Flood stage
12.0 ft
Major flooding from 18.0 ft
Crests at major
3
55th of 242 gauges in Virginia
Most recent flood crest
January 9, 2024
12.16 ft, minor flooding
Location
Patrick County
Virginia

Flood stages

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

Flood categories, South Mayo River near Nettleridge
Action stage10.013Nov 12, 2020The level at which the NWS or its partners begin to take action
Flood stage (minor)12.07Jan 9, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage15.04Sep 29, 2015Some inundation of structures and roads near the stream
Major flood stage18.03Aug 18, 1985Extensive inundation of structures and roads

Every listed crest

62 crests from 1963 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the South Mayo River near Nettleridge, 1963 to 2024 510152025ft Flood stage 12.0 ftMajor 18.0 ft Mar 12, 1963: 10.40 ft, action stage; 2,990 cubic feet per secondSep 1, 1964: 9.20 ft, below flood stage; 2,310 cubic feet per secondOct 16, 1964: 8.91 ft, below flood stage; 2,150 cubic feet per secondFeb 13, 1966: 7.94 ft, below flood stage; 1,660 cubic feet per secondAug 24, 1967: 6.24 ft, below flood stage; 930 cubic feet per secondMar 12, 1968: 6.42 ft, below flood stage; 990 cubic feet per secondOct 19, 1968: 8.48 ft, below flood stage; 1,950 cubic feet per secondAug 10, 1970: 10.36 ft, action stage; 2,990 cubic feet per secondOct 31, 1970: 10.91 ft, action stage; 3,290 cubic feet per secondJun 21, 1972: 18.32 ft, major flooding; 12,500 cubic feet per secondFeb 2, 1973: 9.03 ft, below flood stage; 2,200 cubic feet per secondApr 4, 1974: 12.16 ft, minor flooding; 4,350 cubic feet per secondMar 30, 1975: 9.69 ft, below flood stage; 2,580 cubic feet per secondJan 1, 1976: 6.93 ft, below flood stage; 1,210 cubic feet per secondOct 9, 1976: 10.32 ft, action stage; 2,930 cubic feet per secondJan 26, 1978: 11.33 ft, action stage; 3,590 cubic feet per secondSep 22, 1979: 22.00 ft, major flooding; 20,600 cubic feet per secondApr 9, 1980: 13.27 ft, minor flooding; 5,490 cubic feet per secondSep 16, 1981: 6.51 ft, below flood stage; 1,040 cubic feet per secondJun 13, 1982: 8.83 ft, below flood stage; 2,120 cubic feet per secondApr 10, 1983: 10.45 ft, action stage; 3,020 cubic feet per secondMar 29, 1984: 7.27 ft, below flood stage; 1,380 cubic feet per secondAug 18, 1985: 20.89 ft, major flooding; 18,100 cubic feet per secondNov 4, 1985: 16.18 ft, moderate flooding; 9,170 cubic feet per secondMar 1, 1987: 12.33 ft, minor flooding; 4,480 cubic feet per secondJun 19, 1988: 6.79 ft, below flood stage; 1,130 cubic feet per secondJul 6, 1989: 11.05 ft, action stage; 3,390 cubic feet per secondMar 17, 1990: 9.83 ft, below flood stage; 2,660 cubic feet per secondMar 29, 1991: 8.89 ft, below flood stage; 2,140 cubic feet per secondApr 21, 1992: 17.10 ft, moderate flooding; 10,600 cubic feet per secondMar 24, 1993: 11.35 ft, action stage; 3,630 cubic feet per secondMar 28, 1994: 9.08 ft, below flood stage; 2,240 cubic feet per secondJan 15, 1995: 8.01 ft, below flood stage; 1,710 cubic feet per secondJun 9, 1996: 8.61 ft, below flood stage; 2,000 cubic feet per secondDec 1, 1996: 8.67 ft, below flood stage; 2,030 cubic feet per secondApr 17, 1998: 7.95 ft, below flood stage; 1,680 cubic feet per secondSep 30, 1999: 6.44 ft, below flood stage; 1,000 cubic feet per secondMar 21, 2000: 5.95 ft, below flood stage; 782 cubic feet per secondMay 22, 2001: 6.28 ft, below flood stage; 931 cubic feet per secondMar 18, 2002: 5.33 ft, below flood stage; 503 cubic feet per secondFeb 22, 2003: 9.15 ft, below flood stage; 2,280 cubic feet per secondSep 28, 2004: 16.26 ft, moderate flooding; 9,290 cubic feet per secondJan 14, 2005: 7.80 ft, below flood stage; 1,620 cubic feet per secondOct 8, 2005: 7.57 ft, below flood stage; 1,510 cubic feet per secondSep 14, 2007: 8.56 ft, below flood stage; 1,980 cubic feet per secondJan 7, 2009: 8.50 ft, below flood stage; 1,950 cubic feet per secondJan 25, 2010: 14.95 ft, minor flooding; 7,450 cubic feet per secondMar 6, 2011: 8.06 ft, below flood stage; 1,730 cubic feet per secondDec 7, 2011: 8.28 ft, below flood stage; 1,840 cubic feet per secondJan 18, 2013: 8.92 ft, below flood stage; 2,160 cubic feet per secondOct 7, 2013: 7.69 ft, below flood stage; 1,570 cubic feet per secondApr 20, 2015: 10.72 ft, action stage; 3,229 cubic feet per secondSep 29, 2015: 17.05 ft, moderate flooding; 10,522 cubic feet per secondApr 24, 2017: 9.39 ft, below flood stage; 2,410 cubic feet per secondSep 17, 2018: 14.60 ft, minor flooding; 7,020 cubic feet per secondOct 12, 2018: 11.85 ft, action stage; 4,039 cubic feet per secondFeb 7, 2020: 11.01 ft, action stage; 3,427 cubic feet per secondMay 21, 2020: 11.20 ft, action stage; 3,560 cubic feet per secondOct 29, 2020: 12.28 ft, minor flooding; 4,420 cubic feet per secondNov 12, 2020: 11.74 ft, action stage; 3,950 cubic feet per secondJan 9, 2024: 12.16 ft, minor flooding; 4,300 cubic feet per secondSep 27, 2024: 9.67 ft, below flood stage; 2,565 cubic feet per second Highest, 22.00 ft, Sep 22, 1979 197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, South Mayo River near Nettleridge 1960s: 0 1970s: 3 1980s: 4 4 1990s: 1 2000s: 1 2010s: 3 2020s: 2 1960s1970s1980s1990s2000s2010s2020s
  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 62 listed crests.

Highest listed crests, South Mayo River near Nettleridge
1Sep 22, 197922.00+10.00Major20,600
2Aug 18, 198520.89+8.89Major18,100
3Jun 21, 197218.32+6.32Major12,500
4Apr 21, 199217.10+5.10Moderate10,600
5Sep 29, 201517.05+5.05Moderate10,522
6Sep 28, 200416.26+4.26Moderate9,290
7Nov 4, 198516.18+4.18Moderate9,170
8Jan 25, 201014.95+2.95Minor7,450
9Sep 17, 201814.60+2.60Minor7,020
10Apr 9, 198013.27+1.27Minor5,490
11Mar 1, 198712.33+0.33Minor4,480
12Oct 29, 202012.28+0.28Minor4,420
13Apr 4, 197412.16+0.16Minor4,350
14Jan 9, 202412.16+0.16Minor4,300
15Oct 12, 201811.85−0.15Action4,039
16Nov 12, 202011.74−0.26Action3,950
17Mar 24, 199311.35−0.65Action3,630
18Jan 26, 197811.33−0.67Action3,590
19May 21, 202011.20−0.80Action3,560
20Jul 6, 198911.05−0.95Action3,390
21Feb 7, 202011.01−0.99Action3,427
22Oct 31, 197010.91−1.09Action3,290
23Apr 20, 201510.72−1.28Action3,229
24Apr 10, 198310.45−1.55Action3,020
25Mar 12, 196310.40−1.60Action2,990
26Aug 10, 197010.36−1.64Action2,990
27Oct 9, 197610.32−1.68Action2,930
28Mar 17, 19909.83−2.17Below flood stage2,660
29Mar 30, 19759.69−2.31Below flood stage2,580
30Sep 27, 20249.67−2.33Below flood stage2,565
31Apr 24, 20179.39−2.61Below flood stage2,410
32Sep 1, 19649.20−2.80Below flood stage2,310
33Feb 22, 20039.15−2.85Below flood stage2,280
34Mar 28, 19949.08−2.92Below flood stage2,240
35Feb 2, 19739.03−2.97Below flood stage2,200
36Jan 18, 20138.92−3.08Below flood stage2,160
37Oct 16, 19648.91−3.09Below flood stage2,150
38Mar 29, 19918.89−3.11Below flood stage2,140
39Jun 13, 19828.83−3.17Below flood stage2,120
40Dec 1, 19968.67−3.33Below flood stage2,030
41Jun 9, 19968.61−3.39Below flood stage2,000
42Sep 14, 20078.56−3.44Below flood stage1,980
43Jan 7, 20098.50−3.50Below flood stage1,950
44Oct 19, 19688.48−3.52Below flood stage1,950
45Dec 7, 20118.28−3.72Below flood stage1,840
46Mar 6, 20118.06−3.94Below flood stage1,730
47Jan 15, 19958.01−3.99Below flood stage1,710
48Apr 17, 19987.95−4.05Below flood stage1,680
49Feb 13, 19667.94−4.06Below flood stage1,660
50Jan 14, 20057.80−4.20Below flood stage1,620

Other gauges in Patrick County

Flood gauges in Patrick County
Smith River Church near Woolwine9.016.11 ft, Sep 29, 20151

Patrick County: every hazard · River floods across the country · Virginia

NOAA National Water Prediction Service, gauge NTLV2, 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.