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Walnut River at Augusta

Highest listed crest 36.35 ftFlood stage 23.0 ft45 crests since 1950

The Walnut River at Augusta crested at major flood stage 1 time among the 45 crests the National Weather Service lists from 1950 to 2026. The highest, 36.35 ft on June 5, 1965, was major flooding, 13.35 feet above flood stage. 3 other gauges on the Walnut River crested above flood stage within a week of it.

The gauge

Highest listed crest
36.35 ft
June 5, 1965
Flood stage
23.0 ft
Major flooding from 36.0 ft
Crests at major
1
51st of 171 gauges in Kansas
Most recent flood crest
June 4, 2025
28.85 ft, moderate flooding
Location
Butler County
Near Andover (8.5 mi), El Dorado (12.2 mi)

Flood stages

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

Flood categories, Walnut River at Augusta
Action stage21.01Aug 7, 1967The level at which the NWS or its partners begin to take action
Flood stage (minor)23.027Jun 1, 2022Minimal or no property damage, but possibly some public threat
Moderate flood stage28.013Jun 4, 2025Some inundation of structures and roads near the stream
Major flood stage36.01Jun 5, 1965Extensive inundation of structures and roads

Every listed crest

45 crests from 1950 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Walnut River at Augusta, 1950 to 2026 10203040ft Flood stage 23.0 ftMajor 36.0 ft Aug 1, 1950: 27.83 ft, minor floodingJun 30, 1951: 33.75 ft, moderate floodingJul 4, 1951: 27.40 ft, minor floodingJul 12, 1951: 25.00 ft, minor floodingNov 18, 1964: 28.90 ft, moderate floodingJun 5, 1965: 36.35 ft, major floodingJun 10, 1965: 23.90 ft, minor floodingSep 20, 1965: 24.50 ft, minor floodingAug 7, 1967: 21.35 ft, action stageJul 26, 1968: 25.85 ft, minor floodingOct 18, 1968: 26.30 ft, minor floodingApr 18, 1969: 30.95 ft, moderate floodingApr 28, 1969: 30.95 ft, moderate floodingMay 23, 1969: 30.10 ft, moderate floodingJul 4, 1983: 16.82 ft, below flood stage; 5,760 cubic feet per secondMay 15, 1984: 13.44 ft, below flood stage; 4,950 cubic feet per secondOct 11, 1985: 27.10 ft, minor floodingOct 4, 1986: 24.60 ft, minor floodingMar 1, 1987: 23.70 ft, minor floodingAug 29, 1989: 23.51 ft, minor floodingMay 10, 1993: 26.99 ft, minor floodingMar 14, 1995: 23.72 ft, minor floodingJun 9, 1995: 30.09 ft, moderate floodingJul 3, 1995: 26.39 ft, minor floodingAug 15, 1995: 24.74 ft, minor flooding; 13,432 cubic feet per secondNov 1, 1998: 34.65 ft, moderate floodingOct 9, 2003: 26.82 ft, minor flooding; 22,457 cubic feet per secondJun 13, 2005: 25.45 ft, minor flooding; 18,037 cubic feet per secondAug 26, 2005: 29.59 ft, moderate flooding; 28,446 cubic feet per secondJun 30, 2007: 27.16 ft, minor flooding; 21,631 cubic feet per secondSep 13, 2008: 28.43 ft, moderate flooding; 25,017 cubic feet per secondApr 28, 2009: 29.52 ft, moderate flooding; 28,215 cubic feet per secondJun 10, 2010: 23.18 ft, minor flooding; 14,105 cubic feet per secondJul 3, 2016: 26.46 ft, minor flooding; 19,580 cubic feet per secondSep 10, 2016: 26.49 ft, minor flooding; 19,670 cubic feet per secondOct 9, 2018: 25.03 ft, minor flooding; 15,581 cubic feet per secondMay 8, 2019: 27.81 ft, minor flooding; 23,387 cubic feet per secondMay 21, 2019: 28.98 ft, moderate flooding; 26,448 cubic feet per secondMay 25, 2019: 28.40 ft, moderate flooding; 24,940 cubic feet per secondJun 24, 2019: 23.04 ft, minor flooding; 10,676 cubic feet per secondMay 16, 2020: 26.19 ft, minor flooding; 18,770 cubic feet per secondMay 5, 2022: 24.74 ft, minor flooding; 14,720 cubic feet per secondJun 1, 2022: 25.44 ft, minor flooding; 16,688 cubic feet per secondJun 4, 2025: 28.85 ft, moderate flooding; 26,100 cubic feet per secondJun 26, 2026: 19.14 ft, below flood stage; 7,992 cubic feet per second Highest, 36.35 ft, Jun 5, 1965 19501960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Walnut River at Augusta 1950s: 4 1960s: 9 9 1970s: 0 1980s: 4 1990s: 6 2000s: 6 2010s: 8 2020s: 4 1950s1960s1970s1980s1990s2000s2010s2020s
  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

Highest listed crests, Walnut River at Augusta
1Jun 5, 196536.35+13.35Major—
2Nov 1, 199834.65+11.65Moderate—
3Jun 30, 195133.75+10.75Moderate—
4Apr 18, 196930.95+7.95Moderate—
5Apr 28, 196930.95+7.95Moderate—
6May 23, 196930.10+7.10Moderate—
7Jun 9, 199530.09+7.09Moderate—
8Aug 26, 200529.59+6.59Moderate28,446
9Apr 28, 200929.52+6.52Moderate28,215
10May 21, 201928.98+5.98Moderate26,448
11Nov 18, 196428.90+5.90Moderate—
12Jun 4, 202528.85+5.85Moderate26,100
13Sep 13, 200828.43+5.43Moderate25,017
14May 25, 201928.40+5.40Moderate24,940
15Aug 1, 195027.83+4.83Minor—
16May 8, 201927.81+4.81Minor23,387
17Jul 4, 195127.40+4.40Minor—
18Jun 30, 200727.16+4.16Minor21,631
19Oct 11, 198527.10+4.10Minor—
20May 10, 199326.99+3.99Minor—
21Oct 9, 200326.82+3.82Minor22,457
22Sep 10, 201626.49+3.49Minor19,670
23Jul 3, 201626.46+3.46Minor19,580
24Jul 3, 199526.39+3.39Minor—
25Oct 18, 196826.30+3.30Minor—
26May 16, 202026.19+3.19Minor18,770
27Jul 26, 196825.85+2.85Minor—
28Jun 13, 200525.45+2.45Minor18,037
29Jun 1, 202225.44+2.44Minor16,688
30Oct 9, 201825.03+2.03Minor15,581
31Jul 12, 195125.00+2.00Minor—
32Aug 15, 199524.74+1.74Minor13,432
33May 5, 202224.74+1.74Minor14,720
34Oct 4, 198624.60+1.60Minor—
35Sep 20, 196524.50+1.50Minor—
36Jun 10, 196523.90+0.90Minor—
37Mar 14, 199523.72+0.72Minor—
38Mar 1, 198723.70+0.70Minor—
39Aug 29, 198923.51+0.51Minor—
40Jun 10, 201023.18+0.18Minor14,105
41Jun 24, 201923.04+0.04Minor10,676
42Aug 7, 196721.35−1.65Action—
43Jun 26, 202619.14−3.86Below flood stage7,992
44Jul 4, 198316.82−6.18Below flood stage5,760
45May 15, 198413.44−9.56Below flood stage4,950

The worst floods along the Walnut River

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

June 5, 1965: 36.35 ft here, major flooding

  • WinfieldKS · Jun 6, 1965 · 35.97 ft · Major
  • Arkansas CityKS · Jun 7, 1965 · 25.08 ft · Moderate
  • El DoradoKS · Jun 5, 1965 · 24.95 ft · Moderate

November 1, 1998: 34.65 ft here, moderate flooding

  • WinfieldKS · Nov 2, 1998 · 37.81 ft · Major
  • Arkansas CityKS · Nov 3, 1998 · 32.45 ft · Major · its highest
  • El DoradoKS · Nov 1, 1998 · 19.77 ft · Minor

June 30, 1951: 33.75 ft here, moderate flooding

  • WinfieldKS · Jul 1, 1951 · 37.80 ft · Major

Gauges on the Walnut River

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

Flood gauges on the Walnut River
Arkansas CityKS18.032.45 ft, Nov 3, 19985
Augusta this gaugeKS23.036.35 ft, Jun 5, 19651
WinfieldKS18.041.00 ft, Nov 18, 192842
El DoradoKS19.026.65 ft, Jun 8, 19791

Other gauges in Butler County

Flood gauges in Butler County
El Dorado19.026.65 ft, Jun 8, 19791
El Dorado21.032.14 ft, Jun 8, 19793
Augusta21.034.95 ft, Nov 1, 19985
Towanda22.030.54 ft, Nov 1, 19987

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

NOAA National Water Prediction Service, gauge AGAK1, 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.