River Report

Yellowstone River river

9 streamgauges 49% of normal Last updated 2026-06-13
Aggregate flow
100,970cfs
% of normal
49%
Daily volume
200,272AF
Seasonal avg
207,126cfs

Total streamflow across the Yellowstone River was last observed at 100,970 cfs, and is expected to yield approximately 200,272 acre-ft of water today; about 49% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 207,126 cfs, with recent peaks last observed on 2011-05-25 when daily discharge volume was observed at 448,060 cfs.

Maximum discharge along the river is currently at the Yellowstone River At Glendive Mt reporting a streamflow rate of 18,200 cfs. This is also the highest stage along the Yellowstone River, with a gauge stage of 45.47 ft at this location. This river is monitored from 9 different streamgauging stations along the Yellowstone River, the highest being situated at an altitude of 7,731 ft, the Yellowstone River At Yellowstone Lk Outlet Ynp.

Max discharge

Yellowstone River At Glendive Mt

18,200cfs
Highest stage

Yellowstone River At Glendive Mt

45.47ft
Highest-elevation gauge

Yellowstone River At Yellowstone Lk Outlet Ynp

7,731ft
Aggregate trend

River streamflow levels

Daily aggregate streamflow across every monitored gauge along the Yellowstone 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 Yellowstone River

All 9 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)
Yellowstone River At Yellowstone Lk Outlet Ynp WY
USGS 06186500
3,320 5.30 -0.9 83% 331 9,410 7,731
Yellowstone River Near Altonah UT
USGS 09292500
146 1.33 -5.0 46% 23 2,100 7,452
Yellowstone River At Corwin Springs Mt MT
USGS 06191500
6,230 4.50 -5.5 57% 496 34,000 5,094
Yellowstone River Near Livingston Mt MT
USGS 06192500
7,230 4.09 -5.5 58% 600 37,500 4,554
Yellowstone River At Billings Mt MT
USGS 06214500
12,800 5.82 -11.0 44% 800 82,300 3,090
Yellowstone River At Forsyth Mt MT
USGS 06295000
15,000 3.91 -6.3 49% 3,160 78,100 2,524
Yellowstone River At Miles City Mt MT
USGS 06309000
15,800 5.48 -2.8 49% 2,880 84,900 2,336
Yellowstone River At Glendive Mt MT
USGS 06327500
18,200 45.47 -9.1 53% 1,400 120,000 2,045
Yellowstone River Near Sidney Mt MT
USGS 06329500
16,900 6.37 -10.1 50% 1,610 124,000 1,889
Annual peaks

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

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

Yellowstone River

The Yellowstone River is a major tributary of the Missouri River, spanning 692 miles from its source in Wyoming to its mouth in North Dakota. The river played a significant role in the history of the American West, including the Lewis and Clark expedition. It also served as a major transportation route for fur traders and settlers. The river is fed by snowmelt and precipitation, with the highest flows occurring in the spring and early summer. The river has several reservoirs, including the Buffalo Bill, Yellowtail, and Fort Peck dams. These provide hydroelectric power, irrigation, and flood control. Recreational activities, such as fishing, boating, and camping, are popular along the river. The river also supports agricultural activities, including cattle grazing and crop irrigation.

Track the Yellowstone 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 Yellowstone River

Where does the data for the Yellowstone 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.