South F Flathead River near Columbia Falls Mount
USGS Site No: 12362500 • Flathead River • Flathead County, MT
South F Flathead River near Columbia Falls Mount on the Flathead River is currently at 16,100 cfs (Very High — 103th percentile for this date) . Gage height: 12.68 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 359 | |
| 25th | Low threshold | 588 | |
| 50th (Median) | Normal (median) | 1,600 | |
| 75th | High threshold | 2,580 | |
| 95th | Very High threshold | 9,040 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 11,300 | — |
| May 27, 2026 | 8,150 | — |
| May 26, 2026 | 6,680 | — |
| May 25, 2026 | 6,720 | — |
| May 24, 2026 | 6,730 | — |
| May 23, 2026 | 6,710 | — |
| May 22, 2026 | 6,710 | — |
| May 21, 2026 | 6,670 | — |
| May 20, 2026 | 6,710 | — |
| May 19, 2026 | 6,720 | — |
| May 18, 2026 | 7,490 | — |
| May 17, 2026 | 8,140 | — |
| May 16, 2026 | 8,140 | — |
| May 15, 2026 | 8,160 | — |
| Apr 20, 2026 | 8,210 | — |
| Apr 19, 2026 | 8,220 | — |
| Apr 18, 2026 | 8,210 | — |
| Apr 17, 2026 | 8,270 | — |
| Apr 16, 2026 | 7,720 | — |
| Apr 15, 2026 | 7,260 | — |
| Apr 14, 2026 | 7,260 | — |
| Apr 13, 2026 | 7,300 | — |
| Apr 12, 2026 | 7,250 | — |
| Apr 11, 2026 | 7,250 | — |
| Apr 10, 2026 | 7,220 | — |
| Apr 9, 2026 | 6,710 | — |
| Apr 8, 2026 | 6,180 | — |
| Apr 7, 2026 | 5,890 | — |
| Apr 6, 2026 | 5,580 | — |
| Apr 5, 2026 | 5,730 | — |
Station Information
- USGS Site No
- 12362500
- State
- MT
- County
- Flathead County
- Coordinates
- 48.3566, -114.0379
- Drainage Area
- 1,668 mi²
- Datum (ft)
- 3,040.0
- HUC Code
- 17010209
Recent Extremes
- Max discharge
-
11,300 cfsMay 28, 2026
- Min discharge
-
820 cfsJul 1, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Flathead River at Columbia Falls MountVery High6.8 mi · 46,300 cfs
-
M F Flathead River Near West Glacier MountVery High9.7 mi · 14,800 cfs
-
North F Flathead River near Columbia Falls MountVery High10.4 mi · 14,900 cfs
-
Whitefish River Near Kalispell MountNormal11.3 mi · 67 cfs
-
Stillwater River at Lawrence Park, at KalispellVery High15.9 mi · 609 cfs