Little Missouri River at Marmarth
North Dakota — Water Level & Flood Stage
Located in Slope County, North Dakota on the Little Missouri River. Live water level data from USGS gauge 06335500, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
30 ft
Moderate Flood
23 ft
Minor Flood
18 ft
Action Stage
16 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
30 ft
City of Marmarth will flood due to dike being overtopped at this height.
18 ft
Flooding confined to grasslands used by ranchers in the area.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Mar 30, 1952 | 23.4 ft | 41,300 cfs |
| Mar 30, 1952 | 23.4 ft | 41,300 cfs |
| Mar 22, 1947 | 21.7 ft | 45,000 cfs |
| Mar 22, 1947 | 21.7 ft | 45,000 cfs |
| Feb 28, 1913 | 21.5 ft | — |
About This Gauge
USGS Site
NWS LID
MTHN8
River
Little Missouri River
County
Slope, ND
Coordinates
46.2978°N, 103.9175°W
Get Flood Alerts for Little Missouri River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Little Missouri River at Marmarth?
The Little Missouri River at Marmarth gauge is maintained by USGS (site 06335500) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Little Missouri River at Marmarth?
The NWS-defined flood stage for Little Missouri River at Marmarth is 18 feet. Action stage begins at 16 feet. Moderate flooding starts at 23 feet, and major flooding at 30 feet.
How do I get alerts when Little Missouri River rises?
Download StormCast free on Google Play, go to River Gauges, and add Little Missouri River at Marmarth to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Little Missouri River at Marmarth gauge located?
The gauge is located in Slope County, North Dakota at coordinates 46.2978°N, 103.9175°W. USGS site number: 06335500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers
- River Forecasts typically include ONLY 2 days of future rain from <u>forecast issuance time</u> (lower right of graph). Occasionally 3 days of future rain included.