Middle Fork Flathead River near West Glacier
Critical Stages
9' - Action
10' - Flood
14' - Moderate
18' - Major
Latest Observation
Updated: 1:45 AM MST 12/18/25
Status: No Flooding
Stage: 5.85 ft
Flow: 10.5 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5 AM 12/18 | 5.89 | 10.7 |
| 11 AM 12/18 | 5.78 | 10.3 |
| 5 PM 12/18 | 5.67 | 9.92 |
| 11 PM 12/18 | 5.56 | 9.53 |
| 5 AM 12/19 | 5.46 | 9.19 |
| 11 AM 12/19 | 5.38 | 8.91 |
| 5 PM 12/19 | 5.33 | 8.74 |
| 11 PM 12/19 | 5.27 | 8.54 |
| 5 AM 12/20 | 5.19 | 8.27 |
| 11 AM 12/20 | 5.13 | 8.07 |
| 5 PM 12/20 | 5.06 | 7.83 |
| 11 PM 12/20 | 5 | 7.63 |
| 5 AM 12/21 | 4.94 | 7.43 |
| 11 AM 12/21 | 4.89 | 7.26 |
| 5 PM 12/21 | 4.83 | 7.06 |
| 11 PM 12/21 | 4.78 | 6.89 |
| 5 AM 12/22 | 4.73 | 6.73 |
| 11 AM 12/22 | 4.68 | 6.56 |
| 5 PM 12/22 | 4.64 | 6.43 |
| 11 PM 12/22 | 4.59 | 6.26 |
| 5 AM 12/23 | 4.55 | 6.13 |
| 11 AM 12/23 | 4.51 | 6 |
| 5 PM 12/23 | 4.48 | 5.9 |
| 11 PM 12/23 | 4.44 | 5.77 |
| 5 AM 12/24 | 4.4 | 5.64 |
| 11 AM 12/24 | 4.37 | 5.54 |
| 5 PM 12/24 | 4.34 | 5.45 |
| 11 PM 12/24 | 4.3 | 5.32 |
| 5 AM 12/25 | 4.27 | 5.22 |
| 11 AM 12/25 | 4.24 | 5.12 |
| 5 PM 12/25 | 4.22 | 5.06 |
| 11 PM 12/25 | 4.19 | 4.96 |
| 5 AM 12/26 | 4.17 | 4.89 |
| 11 AM 12/26 | 4.14 | 4.8 |
| 5 PM 12/26 | 4.11 | 4.7 |
| 11 PM 12/26 | 4.09 | 4.64 |
| 5 AM 12/27 | 4.07 | 4.58 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1:45 AM 12/18 | 5.85 | 10.5 |
| 1:30 AM 12/18 | 5.85 | 10.5 |
| 1:15 AM 12/18 | 5.86 | 10.6 |
| 1:00 AM 12/18 | 5.87 | 10.6 |
| 12:45 AM 12/18 | 5.86 | 10.6 |
| 12:30 AM 12/18 | 5.87 | 10.6 |
| 12:15 AM 12/18 | 5.88 | 10.7 |
| 12:00 AM 12/18 | 5.9 | 10.7 |
| 11:45 PM 12/17 | 5.9 | 10.7 |
| 11:30 PM 12/17 | 5.9 | 10.7 |
| 11:15 PM 12/17 | 5.9 | 10.7 |
| 11:00 PM 12/17 | 5.9 | 10.7 |
| 10:45 PM 12/17 | 5.9 | 10.7 |
| 10:30 PM 12/17 | 5.92 | 10.8 |
| 10:15 PM 12/17 | 5.91 | 10.8 |
| 10:00 PM 12/17 | 5.93 | 10.8 |
| 9:45 PM 12/17 | 5.93 | 10.8 |
| 9:30 PM 12/17 | 5.91 | 10.8 |
| 9:15 PM 12/17 | 5.92 | 10.8 |
| 9:00 PM 12/17 | 5.94 | 10.9 |
| 8:45 PM 12/17 | 5.94 | 10.9 |
| 8:30 PM 12/17 | 5.94 | 10.9 |
| 8:15 PM 12/17 | 5.94 | 10.9 |
| 8:00 PM 12/17 | 5.94 | 10.9 |
| 7:45 PM 12/17 | 5.95 | 10.9 |
| 7:30 PM 12/17 | 5.95 | 10.9 |
| 7:15 PM 12/17 | 5.95 | 10.9 |
| 7:00 PM 12/17 | 5.95 | 10.9 |
| 6:45 PM 12/17 | 5.96 | 10.9 |
| 6:30 PM 12/17 | 5.94 | 10.9 |
18' -
Flooding affecting low lying areas adjacent to the river will occur. Many roads will be inundated with flood water and become impassable.
14' -
Flooding to low lying areas adjacent to the river will occur. Roads and homes may experience flooding due to backwater.
10' -
Flooding to low lying areas adjacent to the river is possible. Flooding to homes and agricultural lands is also possible.
| Date | Stage (ft) |
|---|---|
| Jun 9, 1964 | 36.46 |
| Jun 20, 1975 | 19.42 |
| May 20, 1954 | 13.01 |
| May 19, 1991 | 12.4 |
| May 23, 1948 | 12.4 |
| Nov 12, 1989 | 12.07 |
| May 17, 1997 | 11.96 |
| Jun 18, 1974 | 11.6 |
| May 22, 1956 | 11.28 |
| May 19, 2008 | 11.23 |
| Mar 2, 1972 | 10.99 |
| May 23, 1967 | 10.8 |
| May 14, 2013 | 10.74 |
| May 27, 1961 | 10.58 |
| Jun 6, 1959 | 10.24 |
| Jun 13, 1953 | 10.14 |
| May 5, 1957 | 10.1 |
| May 9, 1947 | 9.8 |
| Jun 8, 2011 | 9.79 |
| Jun 6, 1950 | 9.69 |
Data provided by the National Weather Service.
