Rivers in Missouri

Missouri River near Chamois

Osage County, MissouriNWS CMSM7St. Charles office

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood31.00 ft
Moderate flood28.00 ft
Minor flood17.00 ft
Action15.00 ft
  1. 35.30 ftThe Chamois sewage treatment pond levee is overtopped at this height.
  2. 34.40 ftThe main floor of the Chamois Community Center begins to flood near this height. Near this height, a barn and farmhouse along City Park Road also begin to flood.
  3. 32.30 ftAt this height, a farmhouse along City Park Road begins flooding.
  4. 31.30 ftNear this height, backwater along Dooling Creek will begin flooding homes, garages, and sheds along Main Street north of Hwy 100.
  5. 30.80 ftAt this height, the outfield of the Chamois city park ballfield and a utility shed near the left field fence begins flooding.
  6. 30.60 ftThe gazebo at the Chamois city park begins flooding near this height.
  7. 30.40 ftNear this height, Route Z west of Morrison will be closed in both directions.
  8. 30.20 ftThe playground area of the city park and covered 3rd base line bleachers begin to flood.
  9. 30.00 ftThe Chamois city park begins to flood.
  10. 29.90 ftThe utility road behind the outfield fence at Chamois city park begins flooding.
  11. 28.50 ftHighway 100 closed between Chamois and Morrison.
  12. 28.00 ftHomes along North Main Street just north of Highway 100 begin to flood. Highway 100 near the power plant begins to flood. The Mokane levee just east of Mokane overtops near this height.
  13. 27.30 ftHighway 100 near the old power plant site begins flooding.
  14. 27.20 ftNear this height, Missouri Route C at Missouri Highway 94 near Mokane will be closed in both directions.
  15. 27.00 ftThe Mokane levee just east of Mokane will overtop near this height.
  16. 26.50 ftThe Steedman levee northwest of Chamois is overtopped near this level.
  17. 26.00 ftHighway 100 between St. Aubert Creek and Chamois begins flooding due to creek backwater. Near this height, Missouri Highway 94 will be closed from Route PP to Bluffton. The Jacobs and Tebbetts East levees near Tebbetts are overtopped near this level.
  18. 25.70 ftThe Chamois levee just west of Chamois is overtopped near this height.
  19. 25.60 ftHighway 100 just west of Chamois begins flooding near this level.
  20. 25.50 ftLevee A-1 just east of Chamois is overtopped near this level.
  21. 25.40 ftHighway 100 between Morrison and State Route Z begins flooding near this level.
  22. 25.00 ftBoth sections of the Chamois levee system just upstream of Chamois are overtopped near this level.
  23. 24.30 ftHighway 94 near Portland begins flooding near this height.
  24. 24.20 ftThe upstream campsite at the Chamois river access campgrounds begins flooding near this height.
  25. 17.00 ftFlood Stage: Lower lying bottom land begins to flood.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding23%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 26, 2026.

Crest history

127 crests on NOAA’s list since 1929.

#DateStage
1July 31, 199333.30 ft
2June 7, 201929.60 ft
3April 24, 197328.70 ft
4May 4, 201728.30 ft
5December 29, 201528.00 ft
6June 2, 201327.92 ft
7September 16, 200827.17 ft
8May 18, 199026.70 ft
9February 25, 198526.30 ft
10April 13, 199426.30 ft
11June 28, 196725.20 ft
12May 3, 198325.10 ft
13June 9, 200125.00 ft
14July 23, 195824.80 ft
15June 18, 201524.80 ft
16May 3, 201924.70 ft
17May 9, 196124.60 ft
18May 14, 200224.50 ft
19March 26, 197824.30 ft
20May 17, 201024.20 ft
21May 13, 200724.20 ft
22October 8, 199824.10 ft
23April 7, 196024.00 ft
24April 1, 195224.00 ft
25July 10, 201524.00 ft

Most recent crests

  • April 30, 2026: 18.50 ft
  • April 30, 2024: 21.50 ft
  • May 6, 2022: 18.50 ft
  • June 28, 2021: 23.70 ft
  • April 12, 2021: 19.90 ft
  • March 19, 2021: 23.30 ft
  • August 2, 2020: 17.70 ft
  • May 30, 2020: 22.00 ft
  • March 20, 2020: 20.90 ft
  • March 12, 2020: 17.00 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.