Minnesota River at Ortonville, MN
River level and flood forecast · Big Stone County
No current readingas of Sun 6 PM
The National Weather Service has no current reading for this gauge, so its flood status isn't known right now.
Flow: 9 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Flood stage | 10 ft |
| Action stage | 9 ft |
| Record crest (April 12, 2023) | 13.02 ft |
Highest crests on record
- 13.02 ft — April 12, 2023
- 12.92 ft — April 13, 1952
- 12.85 ft — April 10, 1997
- 12.84 ft — March 20, 2010
- 12.09 ft — April 13, 1969
Recent crests: 10.23 ft (June 16, 2025) · 13.02 ft (April 12, 2023) · 7.62 ft (March 9, 2020) · 11.05 ft (March 22, 2019) · 8.62 ft (April 23, 2018)
Up and down the river, and nearby
- DownstreamMinnesota River at Montevideo, MN
- Whetstone River above Big Stone City, SD
- Yellow Bank River near Odessa, MN
- Pomme De Terre River at Appleton, MN
- Coulee Creek near Peever, SD
- Little Minnesota River near Peever, SD
- Lac Qui Parle River at Lac Qui Parle, MN
- Minnesota River at Lac Qui Parle Dam Tail (S of hwy 13), MN
- Lake Traverse near Wheaton, MN
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (ORTM5); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.