Rivers in Montana
Yaak River near Troy
Below flood stage
2.95ftStage
Observed Mon, Sep 21, 10:45 PM MDT
- Flood stage
- 8.00 ft
- Forecast crest
- 3.05 ftSat, Sep 26, 12:00 PM MDT
- Record crest
- 11.40 ft1954
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 10.00 ft |
| Moderate flood | 9.00 ft |
| Minor flood | 8.00 ft |
| Action | 7.50 ft |
- 8.50 ftFlooding affects low lying areas adjacent to the river including homes and access roads. Sylvanite Ranger Station Road and Upper Ford Road affected by flooding.
- 8.00 ftFlooding affects low lying areas adjacent to the river.
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 21, 2026.
Crest history
47 crests on NOAA’s list since 1948.
| # | Date | Stage |
|---|---|---|
| 1 | May 20, 1954 | 11.40 ft |
| 2 | May 27, 1948 | 11.10 ft |
| 3 | May 21, 1956 | 9.70 ft |
| 4 | May 17, 1997 | 9.58 ft |
| 5 | May 22, 1967 | 9.07 ft |
| 6 | May 11, 1976 | 8.96 ft |
| 7 | May 27, 1961 | 8.93 ft |
| 8 | January 17, 1974 | 8.79 ft |
| 9 | May 13, 1971 | 8.61 ft |
| 10 | April 15, 2002 | 8.59 ft |
| 11 | May 26, 1999 | 8.59 ft |
| 12 | May 16, 1972 | 8.56 ft |
| 13 | May 21, 2008 | 8.53 ft |
| 14 | April 27, 2012 | 8.52 ft |
| 15 | April 5, 1991 | 8.50 ft |
| 16 | May 20, 1964 | 8.50 ft |
| 17 | May 6, 1957 | 8.46 ft |
| 18 | May 13, 1969 | 8.35 ft |
| 19 | May 16, 1996 | 8.33 ft |
| 20 | December 11, 2025 | 8.30 ft |
| 21 | May 12, 1960 | 8.26 ft |
| 22 | May 16, 2011 | 8.23 ft |
| 23 | November 25, 1990 | 8.21 ft |
| 24 | May 7, 1966 | 8.20 ft |
| 25 | May 27, 1998 | 8.16 ft |
Most recent crests
- December 17, 2025: 7.94 ft
- December 11, 2025: 8.30 ft
- May 4, 2025: 6.23 ft
- May 26, 2021: 6.37 ft
- May 21, 2020: 7.79 ft
- May 7, 2017: 7.63 ft
- March 16, 2015: 7.90 ft
- May 14, 2013: 7.94 ft
- April 27, 2012: 8.52 ft
- May 16, 2011: 8.23 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.