Flathead River

Streamflow Hydrology Weather


Flathead River Levels

June 14 2024

151,419 ACRE-FT

Discharge Volume Today
-2100.0 cfs (-2.68%) since yesterday
88.81% of Normal 4 Streamgauges

Total streamflow across the Flathead River was last observed at 76,340 cfs, and is expected to yield approximately 151,419 acre-ft of water today; about 89% of normal. Average streamflow for this time of year is 85,956 cfs, with recent peaks last observed on 2012-06-27 when daily discharge volume was observed at 165,650 cfs.

Maximum discharge along the river is currently at the Flathead River At Perma Mt reporting a streamflow rate of 25,700 cfs. This is also the highest stage along the Flathead River, with a gauge stage of 14.29 ft at this location. This river is monitored from 4 different streamgauging stations along the Flathead River, the highest being situated at an altitude of 3,983 ft, the Flathead River At Flathead British Columbia.

Last Updated 2024-06-14
Streamflow 76,340.0 cfs
Percent of Normal 88.81%
Maximum 165,650.0 cfs
2012-06-27

About the flathead river


The Flathead River is a 158-mile-long river located in western Montana, USA. The river has a rich history, having been inhabited by Native American tribes for centuries. It was also a major transportation route for fur traders in the 1800s. The river's hydrology is largely influenced by the surrounding mountains and glaciers, resulting in a steady flow of cold, clean water. The river is home to several reservoirs and dams, including the Kerr Dam and Hungry Horse Dam, which provide hydroelectric power and irrigation water for nearby agricultural communities. Recreational activities such as fishing, hiking, and rafting are popular along the river, which is known for its scenic beauty and abundant wildlife.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Flathead River At Flathead British Columbia
USGS 12355000
2240 cfs 6.71 ft -11.81
Flathead River At Columbia Falls Mt
USGS 12363000
23200 cfs 9.56 ft -7.94
Flathead River Near Polson Mt
USGS 12372000
25200 cfs 10.98 ft 0.4
Flathead River At Perma Mt
USGS 12388700
25700 cfs 14.29 ft 0.39

Peak Annual Discharge

Flathead River Maximum Total Discharge

Seasonal Comparison

Flathead River Year Over Year Discharge


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