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This probabilistic forecast is issued by the Missouri Basin River Forecast Center.
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About this graph
Forecasts for the Osage River at Mari-Osa Campground are issued as needed during times of high water, but are not routinely available.

Vertical datum height surveyed by the NWS

Return to Area Map

Upstream Gauge - near St. Thomas Upstream Gauge
Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 25
Moderate Flood Stage: 22
Flood Stage: 19
Action Stage: 17
Low Stage (in feet): -9999

Historic Crests
(1) 30.30 ft on 12/29/2015
(2) 30.20 ft on 06/06/2019
(3) 27.90 ft on 05/04/2017
(4) 23.00 ft on 06/28/2021
(5) 22.80 ft on 03/19/2021
(6) 22.50 ft on 01/11/2020
(7) 22.50 ft on 03/31/2019
(8) 22.10 ft on 12/18/2015
(9) 21.60 ft on 05/30/2020
(10) 21.40 ft on 10/11/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 23.00 ft on 06/28/2021
(2) 20.30 ft on 04/12/2021
(3) 22.80 ft on 03/19/2021
(4) 20.30 ft on 06/10/2020
(5) 19.00 ft on 06/05/2020
(6) 21.60 ft on 05/30/2020
(7) 19.50 ft on 03/23/2020
(8) 21.20 ft on 03/20/2020
(9) 22.50 ft on 01/11/2020
(10) 21.40 ft on 10/11/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.00 ft on 01/17/2022
(2) 0.30 ft on 02/19/2018
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
28.5 A multi-story home across the river and downstream from the gage will begin flooding near this height.
27 Numerous campsites, garages, and sheds on both sides of the river become flooded near this height.
25.4 A house directly across the river from the gage begins flooding near this height.
25 Across the Maries River from the gage, considerable cropland becomes inundated. This flooding probably begins between 20 and 23 feet.
24 A storage shed across the river and downstream of the gage begins flooding near this height. Also, lower driveways across the river begin flooding near this height.
22 A storage shed across the river from the gage begins flooding near this height.
20 Near this stage the lowest two campsites at Mari-Osa campground begin flooding.
Photos
(1) Lower sectional staff gauge on the Osage River at the Mari Osa Delta campground.
(2) Middle sectional staff gauge on the Osage River at the Mari Osa Delta campground.
(3) Upper sectional staff gauge on the Osage River at the Mari Osa Delta campground.
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
St. Louis Weather Forecast Office
12 Missouri Research Park Drive
St. Charles, MO 63304
(636) 441-8467
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Page last modified: 2-Nov-2020 7:29 PM
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