Rivers in Montana
Missouri River near Ulm
Below flood stage
2.85ftStage
Observed Sun, Sep 27, 2:30 PM MDT
- Flood stage
- 13.50 ft
- Record crest
- 17.00 ft1953
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 17.00 ft |
| Moderate flood | 15.00 ft |
| Minor flood | 13.50 ft |
| Action | 13.00 ft |
- 19.00 ftLower river road floods. Woodland Estates innundated. Fox Farm Road near Heritage Inn floods.
- 17.00 ftHomes in the Country Club area in Great Falls flood.
- 16.00 ftCountry Club golf course in Great Falls floods.
- 15.00 ftWoodland Estates Road floods. Agricultural fields flood. Water floods marina along lower river road.
- 13.40 ftJune 2018 - At 13.4 feet minor low land flooding between Ulm and Great Falls. Most flooding in the flood Plain.
- 13.00 ftLow lying fields flood.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.
Crest history
76 crests on NOAA’s list since 1948.
| # | Date | Stage |
|---|---|---|
| 1 | June 1, 1953 | 17.00 ft |
| 2 | June 1, 1948 | 16.00 ft |
| 3 | June 11, 2011 | 15.48 ft |
| 4 | June 17, 1997 | 15.20 ft |
| 5 | May 24, 1981 | 14.99 ft |
| 6 | June 22, 1975 | 14.64 ft |
| 7 | June 22, 1973 | 14.44 ft |
| 8 | June 22, 1964 | 14.44 ft |
| 9 | June 22, 2018 | 13.99 ft |
| 10 | June 15, 1967 | 13.66 ft |
| 11 | June 22, 2010 | 13.59 ft |
| 12 | June 3, 2018 | 13.35 ft |
| 13 | July 5, 1998 | 13.04 ft |
| 14 | July 4, 1982 | 12.94 ft |
| 15 | June 28, 1984 | 12.80 ft |
| 16 | June 15, 1996 | 12.76 ft |
| 17 | May 7, 1976 | 12.73 ft |
| 18 | June 29, 1969 | 12.27 ft |
| 19 | June 19, 1980 | 12.25 ft |
| 20 | June 22, 1974 | 12.09 ft |
| 21 | June 14, 1995 | 12.00 ft |
| 22 | June 13, 2010 | 12.00 ft |
| 23 | June 19, 1993 | 11.91 ft |
| 24 | July 1, 1965 | 11.88 ft |
| 25 | June 13, 2008 | 11.88 ft |
Most recent crests
- June 22, 2018: 13.99 ft
- June 3, 2018: 13.35 ft
- May 31, 2014: 9.06 ft
- June 5, 2013: 6.00 ft
- February 2, 2013: 6.69 ft
- June 8, 2012: 7.84 ft
- January 23, 2012: 8.45 ft
- June 11, 2011: 15.48 ft
- June 22, 2010: 13.59 ft
- June 13, 2010: 12.00 ft
Nearby
Upstream, downstream and the gauges around this one.
- UpstreamMissouri River at Cascade
- DownstreamMissouri River at Great Falls
- Smith River (MT) at Truly
- Missouri River at Great Falls
- Missouri River at Great Falls Central Ave Bridge
- Sun River at Vaughn
- Muddy Creek at Vaughn
- Sun River at Mill Coulee Creek nr Sun River
- Smith River (MT) at Eden
- Muddy Creek at Vaughn
What this means
Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued routinely during the warm season, and as needed at other times of the year. Stage may be affected by ice during winter months.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.