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Illinois River (AR OK) at Chewey

Highest listed crest 32.65 ftFlood stage 12.0 ft55 crests since 2010

The Illinois River (AR OK) at Chewey crested at major flood stage 9 times among the 55 crests the National Weather Service lists from 2010 to 2026. The highest, 32.65 ft on April 30, 2017, was major flooding, 20.65 feet above flood stage. 2 other gauges on the Illinois River (AR OK) crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
32.65 ft
April 30, 2017; 124,000 cubic feet per second
Flood stage
12.0 ft
Major flooding from 20.0 ft
Crests at major
9
30th of 92 gauges in Oklahoma
Most recent flood crest
June 8, 2025
14.37 ft, minor flooding
Location
Adair County
Oklahoma

Flood stages

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

Flood categories, Illinois River (AR OK) at Chewey
Action stage9.026Jun 15, 2026The level at which the NWS or its partners begin to take action
Flood stage (minor)12.013Jun 8, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage15.05Apr 6, 2025Some inundation of structures and roads near the stream
Major flood stage20.09May 5, 2022Extensive inundation of structures and roads

Every listed crest

55 crests from 2010 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Illinois River (AR OK) at Chewey, 2010 to 2026 010203040ft Flood stage 12.0 ftMajor 20.0 ft Jul 14, 2010: 12.46 ft, minor floodingApr 26, 2011: 29.54 ft, major flooding; 92,200 cubic feet per secondMay 2, 2011: 11.19 ft, action stageMay 24, 2011: 23.20 ft, major floodingNov 9, 2011: 11.98 ft, action stage; 11,600 cubic feet per secondMar 21, 2012: 11.37 ft, action stageApr 19, 2013: 13.48 ft, minor floodingMay 11, 2013: 15.14 ft, moderate flooding; 22,200 cubic feet per secondMar 17, 2014: 9.71 ft, action stage; 8,930 cubic feet per secondMay 24, 2015: 14.15 ft, minor floodingJun 20, 2015: 15.65 ft, moderate flooding; 20,600 cubic feet per secondJul 10, 2015: 11.35 ft, action stageNov 28, 2015: 11.06 ft, action stageDec 14, 2015: 11.59 ft, action stageDec 28, 2015: 32.35 ft, major flooding; 121,000 cubic feet per secondApr 22, 2017: 16.11 ft, moderate flooding; 21,830 cubic feet per secondApr 30, 2017: 32.65 ft, major flooding; 124,000 cubic feet per secondFeb 21, 2018: 10.48 ft, action stage; 9,940 cubic feet per secondFeb 25, 2018: 20.08 ft, major flooding; 37,610 cubic feet per secondMar 28, 2018: 14.84 ft, minor flooding; 23,072 cubic feet per secondMay 4, 2018: 12.74 ft, minor flooding; 16,541 cubic feet per secondDec 28, 2018: 8.94 ft, below flood stage; 6,864 cubic feet per secondJan 5, 2019: 10.57 ft, action stage; 10,139 cubic feet per secondMay 2, 2019: 13.52 ft, minor flooding; 17,278 cubic feet per secondJun 8, 2019: 14.18 ft, minor flooding; 19,048 cubic feet per secondJun 24, 2019: 16.56 ft, moderate flooding; 25,965 cubic feet per secondSep 27, 2019: 8.32 ft, below flood stage; 5,191 cubic feet per secondOct 7, 2019: 21.96 ft, major flooding; 46,700 cubic feet per secondOct 12, 2019: 13.44 ft, minor flooding; 17,069 cubic feet per secondOct 25, 2019: 11.83 ft, action stage; 13,044 cubic feet per secondNov 8, 2019: 13.67 ft, minor flooding; 17,674 cubic feet per secondJan 12, 2020: 14.79 ft, minor flooding; 20,744 cubic feet per secondMar 15, 2020: 11.34 ft, action stage; 11,905 cubic feet per secondMar 20, 2020: 20.09 ft, major flooding; 37,643 cubic feet per secondApr 29, 2021: 22.33 ft, major flooding; 49,200 cubic feet per secondMay 4, 2021: 9.95 ft, action stage; 8,909 cubic feet per secondMay 28, 2021: 9.34 ft, action stage; 7,660 cubic feet per secondDec 18, 2021: 14.00 ft, minor flooding; 19,655 cubic feet per secondApr 13, 2022: 11.79 ft, action stage; 13,721 cubic feet per secondApr 25, 2022: 11.73 ft, action stage; 13,573 cubic feet per secondMay 5, 2022: 28.85 ft, major flooding; 84,722 cubic feet per secondFeb 9, 2023: 9.76 ft, action stage; 8,846 cubic feet per secondMar 4, 2023: 11.77 ft, action stage; 13,132 cubic feet per secondMar 25, 2023: 11.34 ft, action stage; 11,875 cubic feet per secondMay 8, 2024: 9.36 ft, action stage; 7,935 cubic feet per secondNov 6, 2024: 10.82 ft, action stage; 10,937 cubic feet per secondApr 6, 2025: 16.28 ft, moderate flooding; 26,057 cubic feet per secondApr 21, 2025: 14.26 ft, minor flooding; 19,826 cubic feet per secondMay 20, 2025: 11.05 ft, action stage; 11,495 cubic feet per secondJun 8, 2025: 14.37 ft, minor flooding; 20,148 cubic feet per secondJul 8, 2025: 9.33 ft, action stage; 7,885 cubic feet per secondJul 18, 2025: 9.87 ft, action stage; 8,958 cubic feet per secondSep 24, 2025: 10.69 ft, action stage; 10,671 cubic feet per secondJun 9, 2026: 11.02 ft, action stage; 11,434 cubic feet per secondJun 15, 2026: 9.77 ft, action stage; 8,751 cubic feet per second Highest, 32.65 ft, Apr 30, 2017 2010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Illinois River (AR OK) at Chewey 2010s: 19 19 2020s: 8 2010s2020s
  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 55 listed crests.

Highest listed crests, Illinois River (AR OK) at Chewey
1Apr 30, 201732.65+20.65Major124,000
2Dec 28, 201532.35+20.35Major121,000
3Apr 26, 201129.54+17.54Major92,200
4May 5, 202228.85+16.85Major84,722
5May 24, 201123.20+11.20Major—
6Apr 29, 202122.33+10.33Major49,200
7Oct 7, 201921.96+9.96Major46,700
8Mar 20, 202020.09+8.09Major37,643
9Feb 25, 201820.08+8.08Major37,610
10Jun 24, 201916.56+4.56Moderate25,965
11Apr 6, 202516.28+4.28Moderate26,057
12Apr 22, 201716.11+4.11Moderate21,830
13Jun 20, 201515.65+3.65Moderate20,600
14May 11, 201315.14+3.14Moderate22,200
15Mar 28, 201814.84+2.84Minor23,072
16Jan 12, 202014.79+2.79Minor20,744
17Jun 8, 202514.37+2.37Minor20,148
18Apr 21, 202514.26+2.26Minor19,826
19Jun 8, 201914.18+2.18Minor19,048
20May 24, 201514.15+2.15Minor—
21Dec 18, 202114.00+2.00Minor19,655
22Nov 8, 201913.67+1.67Minor17,674
23May 2, 201913.52+1.52Minor17,278
24Apr 19, 201313.48+1.48Minor—
25Oct 12, 201913.44+1.44Minor17,069
26May 4, 201812.74+0.74Minor16,541
27Jul 14, 201012.46+0.46Minor—
28Nov 9, 201111.98−0.02Action11,600
29Oct 25, 201911.83−0.17Action13,044
30Apr 13, 202211.79−0.21Action13,721
31Mar 4, 202311.77−0.23Action13,132
32Apr 25, 202211.73−0.27Action13,573
33Dec 14, 201511.59−0.41Action—
34Mar 21, 201211.37−0.63Action—
35Jul 10, 201511.35−0.65Action—
36Mar 15, 202011.34−0.66Action11,905
37Mar 25, 202311.34−0.66Action11,875
38May 2, 201111.19−0.81Action—
39Nov 28, 201511.06−0.94Action—
40May 20, 202511.05−0.95Action11,495
41Jun 9, 202611.02−0.98Action11,434
42Nov 6, 202410.82−1.18Action10,937
43Sep 24, 202510.69−1.31Action10,671
44Jan 5, 201910.57−1.43Action10,139
45Feb 21, 201810.48−1.52Action9,940
46May 4, 20219.95−2.05Action8,909
47Jul 18, 20259.87−2.13Action8,958
48Jun 15, 20269.77−2.23Action8,751
49Feb 9, 20239.76−2.24Action8,846
50Mar 17, 20149.71−2.29Action8,930

The worst floods along the Illinois River (AR OK)

For this gauge's highest crests, the other gauges on the Illinois River (AR OK) that crested above flood stage within a week.

April 30, 2017: 32.65 ft here, major flooding

  • WattsOK · Apr 30, 2017 · 30.12 ft · Major · its highest
  • TahlequahOK · Apr 30, 2017 · 29.29 ft · Major

December 28, 2015: 32.35 ft here, major flooding

  • TahlequahOK · Dec 28, 2015 · 30.69 ft · Major · its highest
  • WattsOK · Dec 28, 2015 · 28.64 ft · Major
  • GoreOK · Dec 30, 2015 · 23.81 ft · Minor

April 26, 2011: 29.54 ft here, major flooding

  • WattsOK · Apr 26, 2011 · 28.60 ft · Major
  • TahlequahOK · Apr 26, 2011 · 25.97 ft · Major

Gauges on the Illinois River (AR OK)

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

Flood gauges on the Illinois River (AR OK)
WattsOK13.030.12 ft, Apr 30, 201714
Chewey this gaugeOK12.032.65 ft, Apr 30, 20179
TahlequahOK11.030.69 ft, Dec 28, 201535
GoreOK23.030.20 ft, May 11, 19500

Other gauges in Adair County

Flood gauges in Adair County
Watts13.030.12 ft, Apr 30, 201714

Adair County: every hazard · River floods across the country · Oklahoma

NOAA National Water Prediction Service, gauge CWYO2, 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.