North Fork Flathead River at Canadian Border
Critical Stages
9.5' - Action
10.5' - Flood
11' - Moderate
11.5' - Major
Latest Observation
Updated: 1:45 AM MST 12/18/25
Status: No Flooding
Stage: 6.5 ft
Flow: 1.92 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5 AM 12/18 | 6.54 | 1.97 |
| 11 AM 12/18 | 6.42 | 1.81 |
| 5 PM 12/18 | 6.32 | 1.68 |
| 11 PM 12/18 | 6.2 | 1.54 |
| 5 AM 12/19 | 6.08 | 1.4 |
| 11 AM 12/19 | 5.98 | 1.29 |
| 5 PM 12/19 | 5.89 | 1.2 |
| 11 PM 12/19 | 5.82 | 1.13 |
| 5 AM 12/20 | 5.76 | 1.07 |
| 11 AM 12/20 | 5.71 | 1.03 |
| 5 PM 12/20 | 5.67 | 0.993 |
| 11 PM 12/20 | 5.64 | 0.967 |
| 5 AM 12/21 | 5.62 | 0.949 |
| 11 AM 12/21 | 5.6 | 0.932 |
| 5 PM 12/21 | 5.58 | 0.915 |
| 11 PM 12/21 | 5.56 | 0.898 |
| 5 AM 12/22 | 5.54 | 0.882 |
| 11 AM 12/22 | 5.53 | 0.874 |
| 5 PM 12/22 | 5.52 | 0.865 |
| 11 PM 12/22 | 5.51 | 0.857 |
| 5 AM 12/23 | 5.5 | 0.849 |
| 11 AM 12/23 | 5.48 | 0.833 |
| 5 PM 12/23 | 5.47 | 0.825 |
| 11 PM 12/23 | 5.46 | 0.817 |
| 5 AM 12/24 | 5.45 | 0.81 |
| 11 AM 12/24 | 5.44 | 0.802 |
| 5 PM 12/24 | 5.43 | 0.794 |
| 11 PM 12/24 | 5.42 | 0.786 |
| 5 AM 12/25 | 5.41 | 0.779 |
| 11 AM 12/25 | 5.4 | 0.771 |
| 5 PM 12/25 | 5.4 | 0.771 |
| 11 PM 12/25 | 5.39 | 0.764 |
| 5 AM 12/26 | 5.38 | 0.756 |
| 11 AM 12/26 | 5.37 | 0.749 |
| 5 PM 12/26 | 5.36 | 0.741 |
| 11 PM 12/26 | 5.35 | 0.734 |
| 5 AM 12/27 | 5.34 | 0.727 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1:45 AM 12/18 | 6.5 | 1.92 |
| 1:30 AM 12/18 | 6.51 | 1.93 |
| 1:15 AM 12/18 | 6.5 | 1.92 |
| 1:00 AM 12/18 | 6.52 | 1.94 |
| 12:45 AM 12/18 | 6.52 | 1.94 |
| 12:30 AM 12/18 | 6.54 | 1.97 |
| 12:15 AM 12/18 | 6.53 | 1.96 |
| 12:00 AM 12/18 | 6.55 | 1.99 |
| 11:45 PM 12/17 | 6.54 | 1.97 |
| 11:30 PM 12/17 | 6.53 | 1.96 |
| 11:15 PM 12/17 | 6.57 | 2.01 |
| 11:00 PM 12/17 | 6.56 | 2 |
| 10:45 PM 12/17 | 6.56 | 2 |
| 10:30 PM 12/17 | 6.57 | 2.01 |
| 10:15 PM 12/17 | 6.57 | 2.01 |
| 10:00 PM 12/17 | 6.56 | 2 |
| 9:45 PM 12/17 | 6.57 | 2.01 |
| 9:30 PM 12/17 | 6.58 | 2.03 |
| 9:15 PM 12/17 | 6.58 | 2.03 |
| 9:00 PM 12/17 | 6.61 | 2.07 |
| 8:45 PM 12/17 | 6.61 | 2.07 |
| 8:30 PM 12/17 | 6.61 | 2.07 |
| 8:15 PM 12/17 | 6.6 | 2.06 |
| 8:00 PM 12/17 | 6.6 | 2.06 |
| 7:45 PM 12/17 | 6.63 | 2.1 |
| 7:30 PM 12/17 | 6.62 | 2.08 |
| 7:15 PM 12/17 | 6.62 | 2.08 |
| 7:00 PM 12/17 | 6.63 | 2.1 |
| 6:45 PM 12/17 | 6.64 | 2.11 |
| 6:30 PM 12/17 | 6.64 | 2.11 |
12.9' -
Cabins adjacent to the river become surrounded with water from the Canadian Border to Polebridge.
10.5' -
Flooding affects low lying areas adjacent to the river. County roads from the Canadian Border to Polebridge become inundated with water.
| Date | Stage (ft) |
|---|---|
| May 13, 2013 | 10.62 |
| Jun 17, 1974 | 10.62 |
| May 20, 1954 | 10.44 |
| May 25, 2008 | 10.34 |
| Jun 18, 2014 | 10.17 |
| May 17, 2018 | 10.01 |
| May 31, 2002 | 10 |
| Jun 8, 2011 | 9.9 |
| May 13, 2025 | 8.23 |
| Dec 11, 2025 | 7.43 |
Data provided by the National Weather Service.
