Total streamflow across the
Okanogan River
was last observed at
6,670
cfs, and is expected to yield approximately
13,230
acre-ft of water today; about 204%
of normal.
River levels are high.
Average streamflow for this time of year is
3,267 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 3,180 cfs.
This is also the highest stage along the Okanogan River, with a gauge stage of
7.08 ft at this location.
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 | 2026-01-22 |
| Discharge Volume | 13,230 ACRE-FT |
| Streamflow |
6,670.0 cfs
-240.0 cfs (-3.47%) |
| Percent of Normal | 204.18% |
| Maximum |
69,180.0 cfs
2018-05-12 |
| Seasonal Avg | 3,267 cfs |
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Okanogan River At Oroville
USGS 12439500 |
330 cfs | 6.33 ft | 0 | |||||
|
Okanogan River Near Tonasket
USGS 12445000 |
3180 cfs | 7.08 ft | -3.64 | |||||
|
Okanogan River At Malott
USGS 12447200 |
3160 cfs | 5.03 ft | -3.66 |
The Okanogan River (known as the Okanagan River in Canada) is a tributary of the Columbia River, approximately 115 mi (185 km) long, in southern British Columbia and north central Washington. It drains a scenic plateau region called the Okanagan Country east of the Cascade Range and north and west of the Columbia, and also the Okanagan region of British Columbia. The Canadian portion of the river has been channelized since the mid-1950s.