Flathead River

Streamflow Hydrology Weather


Flathead River Levels

March 29 2024

38,466 ACRE-FT

Discharge Volume Today
-44.0 cfs (-0.23%) since yesterday
69.57% of normal Low

Total streamflow across the Flathead River was last observed at 19,393 cfs, and is expected to yield approximately 38,466 acre-ft of water today; about 70% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 27,876 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 7,840 cfs. This is also the highest stage along the Flathead River, with a gauge stage of 8.64 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 2024-03-29
Streamflow 19,393.0 cfs
Percent of Normal 69.57%
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
293 cfs 4.52 ft -1.35
Flathead River At Columbia Falls Mt
USGS 12363000
3800 cfs 3.78 ft 0
Flathead River Near Polson Mt
USGS 12372000
7460 cfs 5.56 ft -0.53
Flathead River At Perma Mt
USGS 12388700
7840 cfs 8.64 ft 0

Peak Annual Discharge

Flathead River Maximum Total Discharge

Seasonal Comparison

Flathead River Year Over Year Discharge


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