Okanogan River river
Total streamflow across the Okanogan River was last observed at 10,553 cfs, and is expected to yield approximately 20,932 acre-ft of water today; about 44% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 24,209 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 5,120 cfs. This is also the highest stage along the Okanogan River, with a gauge stage of 8.48 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.
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Okanogan River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Okanogan River
All 3 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Okanogan River At Oroville
WA
USGS 12439500
|
164 | 6.03 | -5.2 | 10% | 10 | 4,340 | 887 |
|
Okanogan River Near Tonasket
WA
USGS 12445000
|
5,120 | 8.48 | -1.7 | 43% | 508 | 44,700 | 851 |
|
Okanogan River At Malott
WA
USGS 12447200
|
5,020 | 6.18 | -2.9 | 40% | 472 | 45,600 | 802 |
Maximum streamflow discharge by year
The single highest aggregate discharge recorded each year. Spotting the multi-year trend reveals droughts vs. wet cycles long before the headline daily flow does.
Annual peak discharge
From the river's full record · one point per water year
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
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.
Recreation along the Okanogan River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Okanogan River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Okanogan River
Where does the data for the Okanogan River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.