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Hydrograph River at a Glance Download
Little Missouri River at Medora Stage (ft)Flow (kcfs)USGS--Water Resources of the United StatesMDAN8(plotting HGIRG) Graph Created (9:00PM Oct 18, 2019)ObservedLatest observed value: 2.7 ft at 10:00 PM MDT 12-Oct-2019. Flood Stage is 15 ft
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Datum: Not Available
NOTE: 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.

NOTE: Forecasts for the Little Missouri River at Medora are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Marmarth Upstream Gauge Downstream Gauge Downstream Gauge - near Trotters
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 18
Flood Stage: 15
Action Stage: 13
Low Stage (in feet): -9999

Historic Crests
(1) 20.50 ft on 03/23/1947
(2) 20.39 ft on 05/25/2011
(3) 18.68 ft on 03/11/1972
(4) 17.32 ft on 04/08/1952
(5) 17.20 ft on 06/07/1929
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(P): Preliminary values subject to further review.

Recent Crests
(1) 11.25 ft on 09/10/2013
(2) 11.52 ft on 06/01/2013
(3) 4.08 ft on 03/13/2012
(4) 20.39 ft on 05/25/2011
(5) 14.15 ft on 03/20/2010
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:14
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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
19 Much of the town of Medora is susceptible to flooding. The steep bank on the left side is subject to overflow.
18 Highway 10 begins to flood-town of Medora very flat and is subject to flooding.
17 A few rural homes next to the river near Medora may be flooded.
15 Right bank overflows and damages camping area on the west side of Medora.
13 Water backs up into ditches along Highway 10. Cottonwood campground-5 mi into park has water out of banksin very low spots. Campground and Visitor Center unharmed.
12 Low spots on right bank overflow.
(1) Little Missouri River at Medora-Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 46.919444° N, Longitude: 103.527778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 15 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 2246.75 ft 2261.75 ft  

Current/Historical Observations:

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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
Bismarck Weather Forecast Office
2301 University Drive, Building 27
Bismarck, ND 58502-1016
(701) 250-4224
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Page last modified: 1-Mar-2019 12:34 AM
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