Little Missouri River at Medora, ND
River level and flood forecast · Billings County
Normal1.2 ftas of Mon 1 PM
The river is 13.8 ft below flood stage (15 ft).
Flow: 20 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 20 ft |
| Moderate flood stage | 18 ft |
| Flood stage | 15 ft |
| Action stage | 13 ft |
| Record crest (March 23, 1947) | 20.5 ft |
What floods at each level
From the National Weather Service, highest first.
- 19 ftMuch of the town of Medora is susceptible to flooding. The steep bank on the left side is subject to overflow.
- 18 ftHighway 10 begins to flood-town of Medora very flat and is subject to flooding.
- 17 ftA few rural homes next to the river near Medora may be flooded.
- 15 ftRight bank overflows and damages camping area on the west side of Medora.
- 13 ftWater 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 ftLow spots on right bank overflow.
Highest crests on record
- 20.5 ft — March 23, 1947
- 20.39 ft — May 25, 2011
- 18.68 ft — March 11, 1972
- 18.57 ft — March 25, 2019
- 17.32 ft — April 8, 1952
Recent crests: 3.88 ft (March 9, 2021) · 15.71 ft (March 2, 2020) · 18.57 ft (March 25, 2019) · 12.92 ft (April 16, 2018) · 10.2 ft (February 19, 2017)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MDAN8); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.