Okanogan River

Streamflow Hydrology Weather

Okanogan River Levels

September 29 2023

3,719 ACRE-FT

Discharge Volume Today
+154.0 cfs (+8.95%) since yesterday
86.6% of Normal 3 Streamgauges

Total streamflow across the Okanogan River was last observed at 1,875 cfs, and is expected to yield approximately 3,719 acre-ft of water today; about 87% of normal. Average streamflow for this time of year is 2,165 cfs, with recent peaks last observed on 2018-05-12 when daily discharge volume was observed at 69,180 cfs.

Maximum discharge along the river is currently at the Okanogan River Near Tonasket reporting a streamflow rate of 757 cfs. However, the streamgauge with the highest stage along the river is the Okanogan River At Oroville with a gauge stage of 6.46 ft. This river is monitored from 3 different streamgauging stations along the Okanogan River, the highest being situated at an altitude of 887 ft, the Okanogan River At Oroville.

Last Updated 2023-09-29
Streamflow 1,875.0 cfs
Percent of Normal 86.6%
Maximum 69,180.0 cfs

About the okanogan river

The Okanogan River is a 115-mile-long river that flows through Okanogan County in Washington state. The river has a rich history, as it was an important trade route for Native American tribes and later became a center for gold mining. Today, the river is used for irrigation and hydroelectric power generation. The river's hydrology is heavily influenced by snowmelt from the nearby Cascade Mountains. The river is home to several reservoirs and dams, including the Enloe Dam, which generates electricity for the region. The river is also a popular destination for recreational activities such as fishing, camping, and rafting. Additionally, the river is used for agricultural purposes, such as irrigation for fruit orchards and hay farms.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Okanogan River At Oroville
USGS 12439500
411 cfs 6.46 ft 18.44
Okanogan River Near Tonasket
USGS 12445000
757 cfs 4.44 ft 12.15
Okanogan River At Malott
USGS 12447200
707 cfs 3.04 ft 1.14

Peak Annual Discharge

Okanogan River Maximum Total Discharge

Seasonal Comparison

Okanogan River Year Over Year Discharge

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