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Marais Des Cygnes River at Osawatomie

Highest listed crest 50.30 ftFlood stage 28.0 ft162 crests since 1928

The Marais Des Cygnes River at Osawatomie crested at major flood stage 2 times among the 162 crests the National Weather Service lists from 1928 to 2026. The highest, 50.30 ft on July 12, 1951, was major flooding, 22.30 feet above flood stage. 2 other gauges on the Marais Des Cygnes River crested above flood stage within a week of it, 2 at their own highest listed crest.

The gauge

Highest listed crest
50.30 ft
July 12, 1951
Flood stage
28.0 ft
Major flooding from 48.0 ft
Crests at major
2
29th of 171 gauges in Kansas
Most recent flood crest
June 1, 2026
29.21 ft, minor flooding
Location
Miami County
Kansas
Identifiers
NWS OSMK1
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, Marais Des Cygnes River at Osawatomie
Action stage23.01Sep 2, 2003The level at which the NWS or its partners begin to take action
Flood stage (minor)28.0159Jun 1, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage45.00—Some inundation of structures and roads near the stream
Major flood stage48.02Jul 1, 2007Extensive inundation of structures and roads

Every listed crest

162 crests from 1928 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Marais Des Cygnes River at Osawatomie, 1928 to 2026 2030405060ft Flood stage 28.0 ftMajor 48.0 ft Nov 18, 1928: 44.32 ft, minor floodingMay 1, 1935: 39.04 ft, minor floodingJun 3, 1935: 42.48 ft, minor floodingApr 17, 1944: 36.10 ft, minor floodingApr 24, 1944: 42.70 ft, minor floodingDec 7, 1944: 38.80 ft, minor floodingApr 17, 1945: 42.10 ft, minor floodingJan 6, 1946: 29.30 ft, minor floodingMay 11, 1946: 30.50 ft, minor floodingMar 16, 1947: 33.60 ft, minor floodingApr 6, 1947: 35.80 ft, minor floodingApr 13, 1947: 33.60 ft, minor floodingJun 9, 1947: 34.10 ft, minor floodingJun 24, 1947: 30.70 ft, minor floodingMar 20, 1948: 28.20 ft, minor floodingJul 23, 1948: 34.20 ft, minor floodingJul 27, 1948: 32.20 ft, minor floodingMar 31, 1949: 28.50 ft, minor floodingJul 9, 1949: 34.10 ft, minor floodingOct 22, 1949: 28.90 ft, minor floodingJul 14, 1950: 30.50 ft, minor floodingAug 16, 1950: 35.60 ft, minor floodingAug 28, 1950: 28.40 ft, minor floodingMay 3, 1951: 29.80 ft, minor floodingMay 11, 1951: 28.10 ft, minor floodingJun 10, 1951: 30.70 ft, minor floodingJul 1, 1951: 34.40 ft, minor floodingJul 12, 1951: 50.30 ft, major floodingJul 17, 1951: 37.30 ft, minor floodingSep 7, 1951: 38.50 ft, minor floodingMar 12, 1952: 33.40 ft, minor floodingMay 28, 1955: 28.70 ft, minor floodingMay 19, 1957: 30.45 ft, minor floodingJul 12, 1957: 29.40 ft, minor floodingMar 11, 1958: 30.80 ft, minor floodingJul 12, 1958: 33.00 ft, minor floodingJul 20, 1958: 33.40 ft, minor floodingOct 7, 1960: 30.50 ft, minor floodingMar 14, 1961: 28.60 ft, minor floodingMar 28, 1961: 32.60 ft, minor floodingApr 11, 1961: 31.30 ft, minor floodingMay 7, 1961: 37.70 ft, minor floodingMay 26, 1961: 30.40 ft, minor floodingSep 14, 1961: 41.80 ft, minor floodingOct 14, 1961: 32.30 ft, minor floodingNov 4, 1961: 35.80 ft, minor floodingNov 18, 1961: 32.60 ft, minor floodingFeb 2, 1962: 30.70 ft, minor floodingMar 22, 1962: 33.20 ft, minor floodingJun 8, 1965: 34.10 ft, minor floodingJun 15, 1965: 32.30 ft, minor floodingSep 6, 1965: 33.60 ft, minor floodingSep 23, 1965: 31.20 ft, minor floodingJun 14, 1967: 33.10 ft, minor floodingJun 22, 1967: 38.90 ft, minor floodingAug 11, 1968: 30.00 ft, minor floodingJun 28, 1969: 38.90 ft, minor floodingJul 4, 1969: 31.90 ft, minor floodingSep 18, 1969: 28.10 ft, minor floodingOct 14, 1969: 36.30 ft, minor floodingApr 20, 1970: 34.90 ft, minor floodingJun 5, 1970: 34.20 ft, minor floodingSep 24, 1970: 33.40 ft, minor floodingJan 4, 1971: 29.50 ft, minor floodingDec 16, 1971: 30.20 ft, minor floodingMay 3, 1972: 33.50 ft, minor floodingFeb 3, 1973: 31.00 ft, minor floodingMar 8, 1973: 30.10 ft, minor floodingMar 21, 1973: 30.20 ft, minor floodingMar 27, 1973: 35.10 ft, minor floodingApr 1, 1973: 31.80 ft, minor floodingApr 17, 1973: 28.70 ft, minor floodingSep 30, 1973: 35.90 ft, minor floodingOct 13, 1973: 40.10 ft, minor floodingDec 6, 1973: 30.60 ft, minor floodingNov 11, 1974: 32.40 ft, minor floodingJun 19, 1975: 34.10 ft, minor floodingMar 3, 1977: 29.10 ft, minor floodingJun 23, 1977: 38.00 ft, minor floodingNov 11, 1977: 30.60 ft, minor floodingMar 26, 1978: 29.10 ft, minor floodingMay 5, 1978: 32.20 ft, minor floodingJun 10, 1979: 32.60 ft, minor floodingApr 1, 1980: 36.00 ft, minor floodingMay 19, 1981: 28.00 ft, minor floodingJun 12, 1981: 40.00 ft, minor floodingJun 17, 1981: 33.60 ft, minor floodingFeb 1, 1982: 33.50 ft, minor floodingJun 1, 1982: 31.50 ft, minor floodingApr 3, 1983: 34.80 ft, minor floodingMay 2, 1983: 29.80 ft, minor floodingMar 21, 1984: 33.40 ft, minor floodingJun 10, 1984: 38.80 ft, minor floodingJun 22, 1984: 28.90 ft, minor floodingFeb 24, 1985: 37.80 ft, minor floodingMar 5, 1985: 28.90 ft, minor floodingJun 7, 1985: 35.70 ft, minor floodingOct 12, 1985: 38.00 ft, minor floodingNov 5, 1985: 35.60 ft, minor floodingMay 19, 1986: 30.80 ft, minor floodingSep 29, 1986: 28.80 ft, minor floodingOct 5, 1986: 37.70 ft, minor floodingMar 3, 1987: 32.70 ft, minor floodingMar 20, 1987: 33.70 ft, minor floodingApr 3, 1988: 35.40 ft, minor floodingMay 17, 1990: 40.00 ft, minor floodingDec 16, 1992: 36.40 ft, minor floodingMar 2, 1993: 28.60 ft, minor floodingMay 10, 1993: 37.50 ft, minor floodingApr 13, 1994: 29.50 ft, minor floodingApr 30, 1994: 37.20 ft, minor floodingJun 9, 1994: 31.00 ft, minor floodingMay 19, 1995: 38.60 ft, minor floodingMay 28, 1995: 30.80 ft, minor floodingJun 11, 1995: 35.90 ft, minor floodingJun 8, 1996: 33.30 ft, minor floodingFeb 23, 1997: 32.10 ft, minor floodingApr 13, 1997: 33.70 ft, minor floodingMar 18, 1998: 29.00 ft, minor floodingOct 7, 1998: 37.60 ft, minor floodingNov 3, 1998: 43.30 ft, minor floodingApr 17, 1999: 33.60 ft, minor floodingApr 29, 1999: 32.30 ft, minor floodingMay 6, 1999: 32.70 ft, minor floodingMay 25, 1999: 30.80 ft, minor floodingJun 29, 1999: 28.20 ft, minor floodingSep 2, 2003: 25.98 ft, action stageMar 6, 2004: 36.70 ft, minor floodingApr 15, 2007: 28.25 ft, minor flooding; 11,823 cubic feet per secondMay 9, 2007: 38.87 ft, minor flooding; 35,172 cubic feet per secondJul 1, 2007: 49.19 ft, major flooding; 112,315 cubic feet per secondMar 18, 2008: 28.06 ft, minor floodingSep 15, 2008: 33.19 ft, minor floodingApr 29, 2009: 36.52 ft, minor floodingJun 18, 2009: 32.63 ft, minor floodingApr 25, 2010: 33.86 ft, minor floodingMay 15, 2010: 31.62 ft, minor floodingJun 10, 2010: 29.30 ft, minor floodingJun 15, 2010: 31.97 ft, minor floodingMay 19, 2015: 32.04 ft, minor floodingMay 26, 2015: 35.64 ft, minor floodingMay 30, 2015: 29.31 ft, minor floodingJun 7, 2015: 29.16 ft, minor floodingApr 29, 2016: 31.96 ft, minor floodingMay 2, 2017: 34.00 ft, minor floodingAug 24, 2017: 34.47 ft, minor floodingOct 10, 2018: 39.20 ft, minor floodingMay 2, 2019: 36.33 ft, minor floodingMay 22, 2019: 40.27 ft, minor floodingJun 24, 2019: 37.63 ft, minor floodingAug 2, 2019: 35.90 ft, minor floodingAug 18, 2019: 31.10 ft, minor floodingMay 21, 2021: 37.37 ft, minor floodingMay 29, 2021: 31.82 ft, minor floodingJul 2, 2021: 31.45 ft, minor floodingMay 6, 2022: 28.05 ft, minor floodingJun 1, 2023: 29.53 ft, minor floodingApr 29, 2024: 33.76 ft, minor floodingJun 5, 2025: 36.18 ft, minor floodingMar 8, 2026: 30.56 ft, minor floodingApr 28, 2026: 29.89 ft, minor floodingJun 1, 2026: 29.21 ft, minor flooding Highest, 50.30 ft, Jul 12, 1951 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Marais Des Cygnes River at Osawatomie 1920s: 1 1930s: 2 1940s: 17 1950s: 17 1960s: 23 23 1970s: 23 1980s: 22 1990s: 21 2000s: 8 2010s: 17 2020s: 10 1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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 162 listed crests.

Highest listed crests, Marais Des Cygnes River at Osawatomie
1Jul 12, 195150.30+22.30Major—
2Jul 1, 200749.19+21.19Major112,315
3Nov 18, 192844.32+16.32Minor—
4Nov 3, 199843.30+15.30Minor—
5Apr 24, 194442.70+14.70Minor—
6Jun 3, 193542.48+14.48Minor—
7Apr 17, 194542.10+14.10Minor—
8Sep 14, 196141.80+13.80Minor—
9May 22, 201940.27+12.27Minor—
10Oct 13, 197340.10+12.10Minor—
11Jun 12, 198140.00+12.00Minor—
12May 17, 199040.00+12.00Minor—
13Oct 10, 201839.20+11.20Minor—
14May 1, 193539.04+11.04Minor—
15Jun 22, 196738.90+10.90Minor—
16Jun 28, 196938.90+10.90Minor—
17May 9, 200738.87+10.87Minor35,172
18Dec 7, 194438.80+10.80Minor—
19Jun 10, 198438.80+10.80Minor—
20May 19, 199538.60+10.60Minor—
21Sep 7, 195138.50+10.50Minor—
22Jun 23, 197738.00+10.00Minor—
23Oct 12, 198538.00+10.00Minor—
24Feb 24, 198537.80+9.80Minor—
25May 7, 196137.70+9.70Minor—
26Oct 5, 198637.70+9.70Minor—
27Jun 24, 201937.63+9.63Minor—
28Oct 7, 199837.60+9.60Minor—
29May 10, 199337.50+9.50Minor—
30May 21, 202137.37+9.37Minor—
31Jul 17, 195137.30+9.30Minor—
32Apr 30, 199437.20+9.20Minor—
33Mar 6, 200436.70+8.70Minor—
34Apr 29, 200936.52+8.52Minor—
35Dec 16, 199236.40+8.40Minor—
36May 2, 201936.33+8.33Minor—
37Oct 14, 196936.30+8.30Minor—
38Jun 5, 202536.18+8.18Minor—
39Apr 17, 194436.10+8.10Minor—
40Apr 1, 198036.00+8.00Minor—
41Sep 30, 197335.90+7.90Minor—
42Jun 11, 199535.90+7.90Minor—
43Aug 2, 201935.90+7.90Minor—
44Apr 6, 194735.80+7.80Minor—
45Nov 4, 196135.80+7.80Minor—
46Jun 7, 198535.70+7.70Minor—
47May 26, 201535.64+7.64Minor—
48Aug 16, 195035.60+7.60Minor—
49Nov 5, 198535.60+7.60Minor—
50Apr 3, 198835.40+7.40Minor—

The worst floods along the Marais Des Cygnes River

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

July 12, 1951: 50.30 ft here, major flooding

  • La CygneKS · Jul 13, 1951 · 36.19 ft · Major · its highest
  • OttawaKS · Jul 11, 1951 · 42.97 ft · Moderate · its highest

July 1, 2007: 49.19 ft here, major flooding

  • La CygneKS · Jul 2, 2007 · 36.07 ft · Major
  • OttawaKS · Jul 1, 2007 · 41.00 ft · Moderate
  • QuenemoKS · Jun 30, 2007 · 29.71 ft · Moderate · its highest

November 18, 1928: 44.32 ft here, minor flooding

  • La CygneKS · Nov 18, 1928 · 33.20 ft · Moderate

Gauges on the Marais Des Cygnes River

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

Flood gauges on the Marais Des Cygnes River
La CygneKS25.036.19 ft, Jul 13, 19512
Osawatomie this gaugeKS28.050.30 ft, Jul 12, 19512
OttawaKS30.042.97 ft, Jul 11, 19510
QuenemoKS17.029.71 ft, Jun 30, 20070
ReadingKS19.027.47 ft, May 29, 19820
Trading PostKS27.038.55 ft, May 26, 20190

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

NOAA National Water Prediction Service, gauge OSMK1, 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.