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East Nishnabotna River near Atlantic

Highest listed crest 27.49 ftFlood stage 19.0 ft70 crests since 1958

The East Nishnabotna River near Atlantic crested at major flood stage 2 times among the 70 crests the National Weather Service lists from 1958 to 2025. The highest, 27.49 ft on July 2, 1958, was major flooding, 8.49 feet above flood stage.

The gauge

Highest listed crest
27.49 ft
July 2, 1958; 34,200 cubic feet per second
Flood stage
19.0 ft
Major flooding from 24.0 ft
Crests at major
2
70th of 203 gauges in Iowa
Most recent flood crest
March 14, 2019
19.03 ft, minor flooding
Location
Cass County
Iowa

Flood stages

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

Flood categories, East Nishnabotna River near Atlantic
Action stage15.017Dec 14, 2015The level at which the NWS or its partners begin to take action
Flood stage (minor)19.09Mar 14, 2019Minimal or no property damage, but possibly some public threat
Moderate flood stage23.01Jun 22, 1964Some inundation of structures and roads near the stream
Major flood stage24.02Mar 1, 1965Extensive inundation of structures and roads

Every listed crest

70 crests from 1958 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the East Nishnabotna River near Atlantic, 1958 to 2025 51015202530ft Flood stage 19.0 ftMajor 24.0 ft Jul 2, 1958: 27.49 ft, major flooding; 34,200 cubic feet per secondFeb 22, 1961: 18.08 ft, action stage; 4,120 cubic feet per secondMay 29, 1962: 19.34 ft, minor flooding; 8,310 cubic feet per secondMar 4, 1963: 18.58 ft, action stageMar 11, 1963: 16.50 ft, action stage; 4,090 cubic feet per secondJun 22, 1964: 23.16 ft, moderate flooding; 15,200 cubic feet per secondMar 1, 1965: 25.43 ft, major flooding; 20,500 cubic feet per secondJun 12, 1966: 22.86 ft, minor flooding; 14,500 cubic feet per secondJun 12, 1967: 19.37 ft, minor flooding; 8,100 cubic feet per secondJun 30, 1968: 12.20 ft, below flood stage; 560 cubic feet per secondMar 17, 1969: 22.65 ft, minor flooding; 14,100 cubic feet per secondMar 2, 1970: 21.00 ft, minor flooding; 11,000 cubic feet per secondFeb 19, 1971: 17.35 ft, action stage; 15,200 cubic feet per secondSep 12, 1972: 22.81 ft, minor flooding; 26,700 cubic feet per secondMay 7, 1973: 14.63 ft, below flood stage; 10,400 cubic feet per secondOct 11, 1973: 11.65 ft, below flood stage; 5,720 cubic feet per secondApr 28, 1975: 12.20 ft, below flood stage; 6,480 cubic feet per secondJun 14, 1976: 12.34 ft, below flood stage; 6,680 cubic feet per secondSep 3, 1977: 10.29 ft, below flood stage; 4,230 cubic feet per secondMar 20, 1978: 12.25 ft, below flood stage; 6,440 cubic feet per secondMar 18, 1979: 18.42 ft, action stage; 18,500 cubic feet per secondJun 15, 1980: 16.50 ft, action stage; 13,500 cubic feet per secondJun 15, 1981: 7.21 ft, below flood stage; 1,650 cubic feet per secondFeb 20, 1982: 12.40 ft, below flood stageMar 19, 1982: 11.99 ft, below flood stage; 10,300 cubic feet per secondFeb 19, 1983: 9.64 ft, below flood stage; 3,580 cubic feet per secondApr 30, 1984: 15.42 ft, action stage; 12,600 cubic feet per secondFeb 21, 1985: 10.93 ft, below flood stage; 5,400 cubic feet per secondMay 10, 1986: 12.81 ft, below flood stage; 7,920 cubic feet per secondOct 11, 1986: 13.55 ft, below flood stage; 9,090 cubic feet per secondJan 30, 1988: 9.73 ft, below flood stageJun 8, 1988: 6.94 ft, below flood stage; 2,040 cubic feet per secondSep 8, 1989: 17.95 ft, action stage; 18,800 cubic feet per secondJun 16, 1990: 14.54 ft, below flood stage; 11,900 cubic feet per secondJun 14, 1991: 18.39 ft, action stage; 20,100 cubic feet per secondSep 15, 1992: 15.16 ft, action stage; 11,800 cubic feet per secondAug 30, 1993: 17.34 ft, action stage; 13,100 cubic feet per secondFeb 18, 1994: 8.98 ft, below flood stageJun 23, 1994: 8.10 ft, below flood stage; 2,640 cubic feet per secondMay 28, 1995: 8.45 ft, below flood stage; 2,920 cubic feet per secondJul 17, 1996: 14.56 ft, below flood stage; 12,000 cubic feet per secondFeb 18, 1997: 14.59 ft, below flood stage; 12,100 cubic feet per secondJun 15, 1998: 22.36 ft, minor flooding; 41,400 cubic feet per secondJul 9, 1999: 14.18 ft, below flood stage; 11,300 cubic feet per secondJun 26, 2000: 6.61 ft, below flood stage; 1,540 cubic feet per secondMar 14, 2001: 9.83 ft, below flood stage; 5,420 cubic feet per secondAug 23, 2002: 8.64 ft, below flood stage; 3,260 cubic feet per secondMay 5, 2003: 9.49 ft, below flood stage; 4,890 cubic feet per secondMay 23, 2004: 17.10 ft, action stage; 17,600 cubic feet per secondMay 13, 2005: 14.01 ft, below flood stage; 11,000 cubic feet per secondSep 17, 2006: 10.75 ft, below flood stage; 5,740 cubic feet per secondMay 6, 2007: 20.05 ft, minor flooding; 27,500 cubic feet per secondJun 12, 2008: 18.74 ft, action stage; 19,200 cubic feet per secondApr 27, 2009: 13.04 ft, below flood stage; 9,240 cubic feet per secondJun 27, 2010: 16.99 ft, action stage; 12,700 cubic feet per secondJun 10, 2011: 10.01 ft, below flood stage; 4,790 cubic feet per secondApr 15, 2012: 11.07 ft, below flood stage; 6,180 cubic feet per secondJun 24, 2013: 13.78 ft, below flood stage; 10,600 cubic feet per secondJun 30, 2014: 15.53 ft, action stage; 14,000 cubic feet per secondJun 15, 2015: 15.55 ft, action stageDec 14, 2015: 15.93 ft, action stage; 11,800 cubic feet per secondAug 21, 2017: 12.39 ft, below flood stage; 8,160 cubic feet per secondJun 11, 2018: 9.77 ft, below flood stage; 4,530 cubic feet per secondMar 14, 2019: 19.03 ft, minor floodingOct 11, 2019: 10.29 ft, below flood stage; 5,260 cubic feet per secondJul 11, 2021: 5.17 ft, below flood stage; 1,120 cubic feet per secondJun 15, 2022: 10.45 ft, below flood stage; 4,480 cubic feet per secondFeb 27, 2023: 10.52 ft, below flood stage; 4,540 cubic feet per secondMay 21, 2024: 12.11 ft, below flood stage; 7,040 cubic feet per secondAug 10, 2025: 5.57 ft, below flood stage; 1,300 cubic feet per second Highest, 27.49 ft, Jul 2, 1958 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, East Nishnabotna River near Atlantic 1950s: 1 1960s: 6 6 1970s: 2 1980s: 0 1990s: 1 2000s: 1 2010s: 1 2020s: 0 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

The 50 highest of 70 listed crests.

Highest listed crests, East Nishnabotna River near Atlantic
1Jul 2, 195827.49+8.49Major34,200
2Mar 1, 196525.43+6.43Major20,500
3Jun 22, 196423.16+4.16Moderate15,200
4Jun 12, 196622.86+3.86Minor14,500
5Sep 12, 197222.81+3.81Minor26,700
6Mar 17, 196922.65+3.65Minor14,100
7Jun 15, 199822.36+3.36Minor41,400
8Mar 2, 197021.00+2.00Minor11,000
9May 6, 200720.05+1.05Minor27,500
10Jun 12, 196719.37+0.37Minor8,100
11May 29, 196219.34+0.34Minor8,310
12Mar 14, 201919.03+0.03Minor—
13Jun 12, 200818.74−0.26Action19,200
14Mar 4, 196318.58−0.42Action—
15Mar 18, 197918.42−0.58Action18,500
16Jun 14, 199118.39−0.61Action20,100
17Feb 22, 196118.08−0.92Action4,120
18Sep 8, 198917.95−1.05Action18,800
19Feb 19, 197117.35−1.65Action15,200
20Aug 30, 199317.34−1.66Action13,100
21May 23, 200417.10−1.90Action17,600
22Jun 27, 201016.99−2.01Action12,700
23Mar 11, 196316.50−2.50Action4,090
24Jun 15, 198016.50−2.50Action13,500
25Dec 14, 201515.93−3.07Action11,800
26Jun 15, 201515.55−3.45Action—
27Jun 30, 201415.53−3.47Action14,000
28Apr 30, 198415.42−3.58Action12,600
29Sep 15, 199215.16−3.84Action11,800
30May 7, 197314.63−4.37Below flood stage10,400
31Feb 18, 199714.59−4.41Below flood stage12,100
32Jul 17, 199614.56−4.44Below flood stage12,000
33Jun 16, 199014.54−4.46Below flood stage11,900
34Jul 9, 199914.18−4.82Below flood stage11,300
35May 13, 200514.01−4.99Below flood stage11,000
36Jun 24, 201313.78−5.22Below flood stage10,600
37Oct 11, 198613.55−5.45Below flood stage9,090
38Apr 27, 200913.04−5.96Below flood stage9,240
39May 10, 198612.81−6.19Below flood stage7,920
40Feb 20, 198212.40−6.60Below flood stage—
41Aug 21, 201712.39−6.61Below flood stage8,160
42Jun 14, 197612.34−6.66Below flood stage6,680
43Mar 20, 197812.25−6.75Below flood stage6,440
44Jun 30, 196812.20−6.80Below flood stage560
45Apr 28, 197512.20−6.80Below flood stage6,480
46May 21, 202412.11−6.89Below flood stage7,040
47Mar 19, 198211.99−7.01Below flood stage10,300
48Oct 11, 197311.65−7.35Below flood stage5,720
49Apr 15, 201211.07−7.93Below flood stage6,180
50Feb 21, 198510.93−8.07Below flood stage5,400

The worst floods along the East Nishnabotna River

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

September 12, 1972: 22.81 ft here, minor flooding

  • Red OakIA · Sep 13, 1972 · 27.43 ft · Major

Gauges on the East Nishnabotna River

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

Flood gauges on the East Nishnabotna River
Atlantic this gaugeIA19.027.49 ft, Jul 2, 19582
Red OakIA18.029.39 ft, Jun 15, 19982

Cass County: every hazard · River floods across the country · Iowa

NOAA National Water Prediction Service, gauge ATCI4, 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.