River Report

Salmon River river

6 streamgauges 17% of normal Last updated 2026-06-19
Aggregate flow
6,780cfs
% of normal
17%
Daily volume
13,448AF
Seasonal avg
40,889cfs

Total streamflow across the Salmon River was last observed at 6,780 cfs, and is expected to yield approximately 13,448 acre-ft of water today; about 17% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 40,889 cfs, with recent peaks last observed on 2017-06-02 when daily discharge volume was observed at 129,510 cfs.

Maximum discharge along the river is currently at the Salmon River At White Bird Id reporting a streamflow rate of 12,100 cfs. This is also the highest stage along the Salmon River, with a gauge stage of 16.2 ft at this location. This river is monitored from 6 different streamgauging stations along the Salmon River, the highest being situated at an altitude of 4,956 ft, the Salmon River Canal Co Canal Nr Rogerson Id.

Max discharge

Salmon River At White Bird Id

12,100cfs
Highest stage

Salmon River At White Bird Id

16.2ft
Highest-elevation gauge

Salmon River Canal Co Canal Nr Rogerson Id

4,956ft
Aggregate trend

River streamflow levels

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

All 6 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)
Salmon River Canal Co Canal Nr Rogerson Id ID
USGS 13106000
20 0.70 · · · · 4,956
Salmon River Nr Shoup Id ID
USGS 13307000
2,970 3.36 2.1 45% 728 21,800 3,171
Salmon River At White Bird Id ID
USGS 13317000
12,100 16.20 · 46% 2,090 85,600 1,435
Salmon River At Pineville Ny NY
USGS 04250200
277 5.51 6.5 101% 195 8,810 479
Salmon River At South Plattsburgh Ny NY
USGS 04273700
245 2.42 490.4 727% 10 2,240 237
Salmon River Near East Hampton CT
USGS 01193500
19 2.17 0.0 30% 2 7,130 82
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

Salmon River

The Salmon River is a 425-mile-long river in western Idaho that is known for its world-class rapids and salmon fishing. The river's history dates back to the Native American tribes that used the river for fishing and transportation. The river's hydrology is influenced by its headwaters in the Sawtooth Mountains, which provide a consistent flow of cold, clear water. The river is home to several reservoirs and dams, including the Lower Salmon Falls Dam and the Little Salmon River Dam, which provide hydroelectric power and irrigation for agricultural purposes. The Salmon River is also popular for recreational activities, including rafting, fishing, and camping. The river's diverse landscape and rich history make it a unique destination for outdoor enthusiasts and history buffs alike.

Track the Salmon 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 Salmon River

Where does the data for the Salmon 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.