River Report

Yaak River river

1 streamgauge
Aggregate flow
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% of normal
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Daily volume
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Seasonal avg
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Aggregate trend

River streamflow levels

Daily aggregate streamflow across every monitored gauge along the Yaak River. Use the range buttons to zoom in on a specific period.

Total streamflow

Sum of all monitored streamgauges · daily

Per-gauge breakdown

Every streamgauge along the Yaak River

All 1 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)
Yaak River Near Troy Mt MT
USGS 12304500
1,370 5.02 0.0 45% 69 8,490 1,846
Profile

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

About this river

Yaak River

The Yaak River is a tributary of the Kootenai River, located in the far northwest of Montana, USA. The river is approximately 83 miles long, with a drainage area of around 565 square miles. The Yaak River is known for its pristine water quality and diverse aquatic ecosystems. There are no dams on the main stem of the river, but there are several small impoundments used for irrigation and livestock watering in the upper reaches. The Yaak River is a popular destination for fishing, swimming, and boating. The area is also used for timber production and cattle grazing. The Yaak River has a rich history, with evidence of human habitation dating back over 10,000 years. The river was an important trade route for Native Americans and later used for logging and mining. Today, efforts are underway to protect and preserve the river and its surrounding ecosystem.

Around the river

Recreation along the Yaak River

Fishing access and paddle runs Snoflo tracks within the watershed.

Track the Yaak 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.

FAQ

About the Yaak River

Where does the data for the Yaak 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.