Rivers in Montana
Middle Fork Flathead River near West Glacier
Below flood stage
2.09ftStage
Observed Mon, Sep 28, 10:45 AM MDT
- Flood stage
- 10.00 ft
- Forecast crest
- 2.10 ftMon, Sep 28, 12:00 PM MDT
- Record crest
- 36.46 ft1964
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 18.00 ft |
| Moderate flood | 14.00 ft |
| Minor flood | 10.00 ft |
| Action | 9.00 ft |
- 18.00 ftFlooding affecting low lying areas adjacent to the river will occur. Many roads will be inundated with flood water and become impassable.
- 14.00 ftFlooding to low lying areas adjacent to the river will occur. Roads and homes may experience flooding due to backwater.
- 10.00 ftFlooding to low lying areas adjacent to the river is possible. Flooding to homes and agricultural lands is also possible.
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 27, 2026.
Crest history
33 crests on NOAA’s list since 1943.
| # | Date | Stage |
|---|---|---|
| 1 | June 9, 1964 | 36.46 ft |
| 2 | June 20, 1975 | 19.42 ft |
| 3 | May 20, 1954 | 13.01 ft |
| 4 | May 19, 1991 | 12.40 ft |
| 5 | May 23, 1948 | 12.40 ft |
| 6 | November 12, 1989 | 12.07 ft |
| 7 | May 17, 1997 | 11.96 ft |
| 8 | June 18, 1974 | 11.60 ft |
| 9 | May 22, 1956 | 11.28 ft |
| 10 | May 19, 2008 | 11.23 ft |
| 11 | March 2, 1972 | 10.99 ft |
| 12 | May 23, 1967 | 10.80 ft |
| 13 | May 14, 2013 | 10.74 ft |
| 14 | May 27, 1961 | 10.58 ft |
| 15 | June 6, 1959 | 10.24 ft |
| 16 | June 13, 1953 | 10.14 ft |
| 17 | May 5, 1957 | 10.10 ft |
| 18 | May 9, 1947 | 9.80 ft |
| 19 | June 8, 2011 | 9.79 ft |
| 20 | June 6, 1950 | 9.69 ft |
| 21 | June 21, 2022 | 9.61 ft |
| 22 | May 28, 1971 | 9.49 ft |
| 23 | June 9, 1996 | 9.42 ft |
| 24 | June 5, 1970 | 9.34 ft |
| 25 | May 11, 1976 | 9.15 ft |
Most recent crests
- December 12, 2025: 8.64 ft
- May 12, 2025: 6.38 ft
- June 21, 2022: 9.61 ft
- June 5, 2021: 7.86 ft
- May 31, 2020: 9.13 ft
- May 9, 2018: 9.15 ft
- May 14, 2013: 10.74 ft
- April 27, 2012: 9.12 ft
- June 8, 2011: 9.79 ft
- May 19, 2008: 11.23 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round.
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.