River Conditions
Note: Be aware that river conditions can change rapidly depending on weather and other factors. These condition reports are for reference only and are not authoritative guides.
Cubic Feet per Second (CFS) and Water Depth are based on USGS Survey Stations near the river segment. Current stream-flow data can be found at NOAA's Northwest River Forecast Center or view the individual station graphs: Middle Fork (near West Glacier); North Fork NFFQ2 (near Canadian border); North Fork FCFM8 (near Columbia Falls).
Flathead River Condition Reports
Middle Fork CFS and Water Depth from the USGS Survey Station at West Glacier (123585000)
| Date | River Segment (Length in mi) | CFS/Depth | Float Time (hrs) | Observed Conditions |
|---|---|---|---|---|
| 06/14/2026 | Cascadilla to West Glacier (16 miles) | 6,660 cfs/4.59 ft | 3.75 hours | High-Moderate Flow
|
| 06/13/2026 | Bear Creek to Paola (10.5 miles) | 7,000 cfs/4.72 ft | 3.25 hours | High-Moderate Flow
|
| 06/11/2026 | Paola to Cascadilla (12 miles) | 7,900 cfs/4.96 ft | 2 hours | High-Moderate Flow
|
| 06/10/2026 | West Glacier to Blankenship (5.5 miles) | 7,560 cfs/4.86 ft | 1.5 hours | High-Moderate Flow
|
| 05/14/2026 | West Glacier to Blankenship (5.5 miles) | 11,300 cfs/6.06 ft | 1 hour | High Flow
|
| 05/13/2026 | Paola to Cascadilla (12 miles) | 11,400 cfs/6.08 ft | 1.75 hours | High Flow
River Changes/Season Long Warnings
|
| 05/12/26 | Bear Creek to Paola (10.5 miles) | 11,900 cfs/6.2 ft | 2 hours | High Flow
River Changes/Season Long Warnings
|
North Fork CFS and Water Depth from the USGS Survey Station at Columbia Falls (123555000)
| Date | River Segment (Length in mi) | CFS/Depth | Float Time (hrs) | Observed Conditions |
|---|---|---|---|---|
| 06/07/26 | Polebridge to Coal Creek | 9,710 cfs/6.48 ft | 1.5 hours | High Flow
River Changes/Season Long Warnings
|
| 06/06/26 | Ford to Polebridge | 11,100 cfs/6.94 ft | 2 hours | High Flow
|
| 06/05/26 | Big Creek to Glacier Rim | 11,900 cfs/6.18 ft | 2.25 hours | High Flow
|
| 05/07/26 | Glacier Rim to Blankenship (4 miles) | 8,160 cfs/5.92 ft | 1 hour | High Flow
|