Yaak River near Troy
Critical Stages
7.5' - Action
8' - Flood
9' - Moderate
10' - Major
Latest Observation
Updated: 12:45 AM MST 12/18/25
Status: Action
Stage: 7.51 ft
Flow: 5.52 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5 AM 12/18 | 7.25 | 4.81 |
| 11 AM 12/18 | 7.1 | 4.42 |
| 5 PM 12/18 | 6.95 | 4.08 |
| 11 PM 12/18 | 6.8 | 3.77 |
| 5 AM 12/19 | 6.66 | 3.53 |
| 11 AM 12/19 | 6.52 | 3.28 |
| 5 PM 12/19 | 6.38 | 3.07 |
| 11 PM 12/19 | 6.24 | 2.86 |
| 5 AM 12/20 | 6.1 | 2.65 |
| 11 AM 12/20 | 5.97 | 2.47 |
| 5 PM 12/20 | 5.85 | 2.31 |
| 11 PM 12/20 | 5.73 | 2.16 |
| 5 AM 12/21 | 5.63 | 2.03 |
| 11 AM 12/21 | 5.53 | 1.91 |
| 5 PM 12/21 | 5.44 | 1.81 |
| 11 PM 12/21 | 5.35 | 1.71 |
| 5 AM 12/22 | 5.27 | 1.62 |
| 11 AM 12/22 | 5.2 | 1.54 |
| 5 PM 12/22 | 5.13 | 1.47 |
| 11 PM 12/22 | 5.06 | 1.4 |
| 5 AM 12/23 | 4.99 | 1.33 |
| 11 AM 12/23 | 4.94 | 1.29 |
| 5 PM 12/23 | 4.89 | 1.24 |
| 11 PM 12/23 | 4.84 | 1.19 |
| 5 AM 12/24 | 4.79 | 1.15 |
| 11 AM 12/24 | 4.75 | 1.11 |
| 5 PM 12/24 | 4.71 | 1.08 |
| 11 PM 12/24 | 4.67 | 1.04 |
| 5 AM 12/25 | 4.64 | 1.02 |
| 11 AM 12/25 | 4.6 | 0.985 |
| 5 PM 12/25 | 4.57 | 0.96 |
| 11 PM 12/25 | 4.54 | 0.935 |
| 5 AM 12/26 | 4.52 | 0.919 |
| 11 AM 12/26 | 4.49 | 0.895 |
| 5 PM 12/26 | 4.47 | 0.879 |
| 11 PM 12/26 | 4.44 | 0.856 |
| 5 AM 12/27 | 4.42 | 0.84 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 12:45 AM 12/18 | 7.51 | 5.52 |
| 12:30 AM 12/18 | 7.53 | 5.57 |
| 12:15 AM 12/18 | 7.52 | 5.55 |
| 12:00 AM 12/18 | 7.54 | 5.6 |
| 11:45 PM 12/17 | 7.55 | 5.63 |
| 11:30 PM 12/17 | 7.55 | 5.63 |
| 11:15 PM 12/17 | 7.57 | 5.69 |
| 11:00 PM 12/17 | 7.58 | 5.72 |
| 10:45 PM 12/17 | 7.59 | 5.74 |
| 10:30 PM 12/17 | 7.6 | 5.77 |
| 10:15 PM 12/17 | 7.62 | 5.83 |
| 10:00 PM 12/17 | 7.62 | 5.83 |
| 9:45 PM 12/17 | 7.63 | 5.86 |
| 9:30 PM 12/17 | 7.64 | 5.89 |
| 9:15 PM 12/17 | 7.64 | 5.89 |
| 9:00 PM 12/17 | 7.67 | 5.98 |
| 8:45 PM 12/17 | 7.67 | 5.98 |
| 8:30 PM 12/17 | 7.68 | 6.01 |
| 8:15 PM 12/17 | 7.7 | 6.07 |
| 8:00 PM 12/17 | 7.71 | 6.09 |
| 7:45 PM 12/17 | 7.73 | 6.15 |
| 7:30 PM 12/17 | 7.73 | 6.15 |
| 7:15 PM 12/17 | 7.74 | 6.18 |
| 7:00 PM 12/17 | 7.75 | 6.21 |
| 6:45 PM 12/17 | 7.75 | 6.21 |
| 6:30 PM 12/17 | 7.77 | 6.27 |
| 6:15 PM 12/17 | 7.78 | 6.3 |
| 6:00 PM 12/17 | 7.82 | 6.42 |
| 5:45 PM 12/17 | 7.82 | 6.42 |
| 5:30 PM 12/17 | 7.8 | 6.36 |
8.5' -
Flooding 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' -
Flooding affects low lying areas adjacent to the river.
| Date | Stage (ft) |
|---|---|
| May 20, 1954 | 11.4 |
| May 27, 1948 | 11.1 |
| May 21, 1956 | 9.7 |
| May 17, 1997 | 9.58 |
| May 22, 1967 | 9.07 |
| May 11, 1976 | 8.96 |
| May 27, 1961 | 8.93 |
| Jan 17, 1974 | 8.79 |
| May 13, 1971 | 8.61 |
| Apr 15, 2002 | 8.59 |
| May 26, 1999 | 8.59 |
| May 16, 1972 | 8.56 |
| May 21, 2008 | 8.53 |
| Apr 27, 2012 | 8.52 |
| Apr 5, 1991 | 8.5 |
| May 20, 1964 | 8.5 |
| May 6, 1957 | 8.46 |
| May 13, 1969 | 8.35 |
| May 16, 1996 | 8.33 |
| Dec 11, 2025 | 8.3 |
Data provided by the National Weather Service.
