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Neosho River at Le Roy

Highest listed crest 34.48 ftFlood stage 23.0 ft67 crests since 1904

The Neosho River at Le Roy crested above flood stage 63 times among the 67 crests the National Weather Service lists from 1904 to 2019. The highest, 34.48 ft on July 12, 1951, was moderate flooding, 11.48 feet above flood stage. 6 other gauges on the Neosho River crested above flood stage within a week of it, 5 at their own highest listed crest.

The gauge

Highest listed crest
34.48 ft
July 12, 1951
Flood stage
23.0 ft
Major flooding from 38.0 ft
Crests at major
0
63 above flood stage
Most recent flood crest
May 25, 2019
29.55 ft, moderate flooding
Location
Coffey County
Kansas
Identifiers
NWS LRYK1
No USGS station

Flood stages

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

Flood categories, Neosho River at Le Roy
Action stage18.04May 4, 1999The level at which the NWS or its partners begin to take action
Flood stage (minor)23.00—Minimal or no property damage, but possibly some public threat
Moderate flood stage23.063May 25, 2019Some inundation of structures and roads near the stream
Major flood stage38.00—Extensive inundation of structures and roads

Every listed crest

67 crests from 1904 to 2019. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Neosho River at Le Roy, 1904 to 2019 152025303540ft Flood stage 23.0 ftMajor 38.0 ft Jun 5, 1904: 29.20 ft, moderate floodingJul 14, 1909: 26.30 ft, moderate floodingMay 21, 1915: 26.10 ft, moderate floodingJun 12, 1916: 27.10 ft, moderate floodingApr 9, 1922: 27.40 ft, moderate floodingMay 25, 1922: 26.10 ft, moderate floodingJun 13, 1923: 27.30 ft, moderate floodingSep 12, 1926: 29.60 ft, moderate floodingOct 4, 1926: 26.10 ft, moderate floodingApr 19, 1927: 27.30 ft, moderate floodingOct 2, 1927: 26.00 ft, moderate floodingNov 19, 1928: 28.00 ft, moderate floodingMay 23, 1938: 27.79 ft, moderate floodingJan 6, 1941: 28.50 ft, moderate floodingJan 11, 1941: 23.75 ft, moderate floodingJan 17, 1941: 22.70 ft, action stageJun 10, 1941: 25.40 ft, moderate floodingJun 14, 1941: 25.10 ft, moderate floodingAug 27, 1941: 24.82 ft, moderate floodingSep 12, 1941: 23.90 ft, moderate floodingOct 17, 1941: 24.67 ft, moderate floodingOct 23, 1941: 26.47 ft, moderate floodingApr 17, 1945: 29.20 ft, moderate floodingJun 23, 1946: 23.10 ft, moderate floodingMar 13, 1947: 23.31 ft, moderate floodingApr 5, 1947: 24.08 ft, moderate floodingApr 13, 1947: 25.29 ft, moderate floodingJun 8, 1947: 23.40 ft, moderate floodingJul 22, 1948: 30.73 ft, moderate floodingJul 13, 1950: 23.25 ft, moderate floodingMay 4, 1951: 25.70 ft, moderate floodingJun 12, 1951: 23.10 ft, moderate floodingJun 24, 1951: 24.18 ft, moderate floodingJul 3, 1951: 27.58 ft, moderate floodingJul 7, 1951: 24.62 ft, moderate floodingJul 12, 1951: 34.48 ft, moderate floodingJul 24, 1951: 23.32 ft, moderate floodingSep 8, 1951: 25.78 ft, moderate floodingSep 13, 1951: 23.07 ft, moderate floodingFeb 2, 1962: 24.15 ft, moderate floodingJun 1, 1962: 23.45 ft, moderate floodingSep 22, 1962: 25.55 ft, moderate floodingJun 21, 1967: 25.83 ft, moderate floodingJun 1, 1969: 21.45 ft, action stageJul 1, 1969: 25.90 ft, moderate floodingOct 13, 1969: 26.50 ft, moderate floodingOct 11, 1973: 27.30 ft, moderate floodingJun 17, 1975: 24.04 ft, moderate floodingMar 30, 1980: 23.00 ft, moderate floodingJun 1, 1982: 26.00 ft, moderate floodingJun 4, 1985: 23.00 ft, moderate floodingAug 22, 1985: 24.00 ft, moderate floodingNov 15, 1985: 25.30 ft, moderate floodingOct 4, 1986: 27.00 ft, moderate floodingApr 2, 1988: 25.30 ft, moderate floodingJun 9, 1990: 26.40 ft, moderate floodingMay 31, 1995: 19.90 ft, action stageNov 4, 1998: 28.00 ft, moderate floodingMay 4, 1999: 20.90 ft, action stageMar 5, 2004: 26.50 ft, moderate floodingJun 5, 2005: 25.95 ft, moderate floodingJun 13, 2005: 24.75 ft, moderate floodingJul 1, 2007: 28.70 ft, moderate flooding; 43,672 cubic feet per secondSep 9, 2009: 23.75 ft, moderate flooding; 20,206 cubic feet per secondMay 24, 2015: 27.70 ft, moderate floodingMay 14, 2019: 23.18 ft, moderate floodingMay 25, 2019: 29.55 ft, moderate flooding Highest, 34.48 ft, Jul 12, 1951 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Neosho River at Le Roy 1900s: 2 1910s: 2 1920s: 8 1930s: 1 1940s: 15 15 1950s: 10 1960s: 6 1970s: 2 1980s: 7 1990s: 2 2000s: 5 2010s: 3 1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s
  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 67 listed crests.

Highest listed crests, Neosho River at Le Roy
1Jul 12, 195134.48+11.48Moderate—
2Jul 22, 194830.73+7.73Moderate—
3Sep 12, 192629.60+6.60Moderate—
4May 25, 201929.55+6.55Moderate—
5Jun 5, 190429.20+6.20Moderate—
6Apr 17, 194529.20+6.20Moderate—
7Jul 1, 200728.70+5.70Moderate43,672
8Jan 6, 194128.50+5.50Moderate—
9Nov 19, 192828.00+5.00Moderate—
10Nov 4, 199828.00+5.00Moderate—
11May 23, 193827.79+4.79Moderate—
12May 24, 201527.70+4.70Moderate—
13Jul 3, 195127.58+4.58Moderate—
14Apr 9, 192227.40+4.40Moderate—
15Jun 13, 192327.30+4.30Moderate—
16Apr 19, 192727.30+4.30Moderate—
17Oct 11, 197327.30+4.30Moderate—
18Jun 12, 191627.10+4.10Moderate—
19Oct 4, 198627.00+4.00Moderate—
20Oct 13, 196926.50+3.50Moderate—
21Mar 5, 200426.50+3.50Moderate—
22Oct 23, 194126.47+3.47Moderate—
23Jun 9, 199026.40+3.40Moderate—
24Jul 14, 190926.30+3.30Moderate—
25May 21, 191526.10+3.10Moderate—
26May 25, 192226.10+3.10Moderate—
27Oct 4, 192626.10+3.10Moderate—
28Oct 2, 192726.00+3.00Moderate—
29Jun 1, 198226.00+3.00Moderate—
30Jun 5, 200525.95+2.95Moderate—
31Jul 1, 196925.90+2.90Moderate—
32Jun 21, 196725.83+2.83Moderate—
33Sep 8, 195125.78+2.78Moderate—
34May 4, 195125.70+2.70Moderate—
35Sep 22, 196225.55+2.55Moderate—
36Jun 10, 194125.40+2.40Moderate—
37Nov 15, 198525.30+2.30Moderate—
38Apr 2, 198825.30+2.30Moderate—
39Apr 13, 194725.29+2.29Moderate—
40Jun 14, 194125.10+2.10Moderate—
41Aug 27, 194124.82+1.82Moderate—
42Jun 13, 200524.75+1.75Moderate—
43Oct 17, 194124.67+1.67Moderate—
44Jul 7, 195124.62+1.62Moderate—
45Jun 24, 195124.18+1.18Moderate—
46Feb 2, 196224.15+1.15Moderate—
47Apr 5, 194724.08+1.08Moderate—
48Jun 17, 197524.04+1.04Moderate—
49Aug 22, 198524.00+1.00Moderate—
50Sep 12, 194123.90+0.90Moderate—

The worst floods along the Neosho River

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

July 12, 1951: 34.48 ft here, moderate flooding

  • ParsonsKS · Jul 14, 1951 · 40.20 ft · Major · its highest
  • CommerceOK · Jul 16, 1951 · 34.03 ft · Major · its highest
  • IolaKS · Jul 13, 1951 · 33.26 ft · Major · its highest
  • OswegoKS · Jul 15, 1951 · 32.50 ft · Major
  • BurlingtonKS · Jul 12, 1951 · 41.53 ft · Moderate · its highest
  • Neosho RapidsKS · Jul 11, 1951 · 34.30 ft · Moderate · its highest

July 22, 1948: 30.73 ft here, moderate flooding

  • OswegoKS · Jul 20, 1948 · 34.10 ft · Major · its highest
  • CommerceOK · Jul 28, 1948 · 24.43 ft · Major
  • ParsonsKS · Jul 25, 1948 · 30.80 ft · Moderate
  • BurlingtonKS · Jul 21, 1948 · 36.80 ft · Minor

September 12, 1926: 29.60 ft here, moderate flooding

  • OswegoKS · Sep 19, 1926 · 25.10 ft · Major
  • ParsonsKS · Sep 17, 1926 · 27.07 ft · Moderate
  • IolaKS · Sep 13, 1926 · 23.50 ft · Moderate

Gauges on the Neosho River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Neosho River
BurlingtonKS27.041.53 ft, Jul 12, 19510
EmporiaKS19.026.00 ft, Oct 11, 19850
IolaKS15.033.26 ft, Jul 13, 19511
John Redmond LakeKS1,068.01,081.90 ft, May 14, 20091
Le Roy this gaugeKS23.034.48 ft, Jul 12, 19510
Neosho RapidsKS22.034.30 ft, Jul 11, 19510
OswegoKS17.034.10 ft, Jul 20, 194822
AmericusKS26.028.30 ft, Jun 27, 19690
ChanuteKS23.036.82 ft, Jul 1, 20072
CommerceOK15.034.03 ft, Jul 16, 19519
ErieKS29.040.60 ft, Jul 2, 20075
OswegoKS28.034.70 ft, May 29, 20191
ParsonsKS21.040.20 ft, Jul 14, 19512

Other gauges in Coffey County

Flood gauges in Coffey County
Burlington27.041.53 ft, Jul 12, 19510
John Redmond Lake1,068.01,081.90 ft, May 14, 20091

Coffey County: every hazard · River floods across the country · Kansas

NOAA National Water Prediction Service, gauge LRYK1, 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.