Allegheny River river
Total streamflow across the Allegheny River was last observed at 106,130 cfs, and is expected to yield approximately 210,506 acre-ft of water today; about 117% of normal. Average streamflow for this time of year is 90,333 cfs, with recent peaks last observed on 2022-02-24 when daily discharge volume was observed at 398,200 cfs.
Maximum discharge along the river is currently at the Allegheny River At Natrona reporting a streamflow rate of 23,900 cfs. This is also the highest stage along the Allegheny River, with a gauge stage of 12.7 ft at this location. This river is monitored from 10 different streamgauging stations along the Allegheny River, the highest being situated at an altitude of 1,457 ft, the Allegheny River At Port Allegany.
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Allegheny River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Allegheny River
All 10 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)▾ |
|---|---|---|---|---|---|---|---|
|
Allegheny River At Port Allegany
PA
USGS 03007800
|
390 | 3.49 | -8.7 | 123% | 3 | 5,140 | 1,457 |
|
Allegheny River At Eldred
PA
USGS 03010500
|
1,040 | 5.51 | -8.8 | 136% | 11 | 7,450 | 1,421 |
|
Allegheny River At Salamanca Ny
NY
USGS 03011020
|
2,970 | 4.47 | 13.4 | 149% | 122 | 23,500 | 1,342 |
|
Allegheny River At Kinzua Dam
PA
USGS 03012550
|
3,820 | 9.20 | 0.0 | 144% | 495 | 19,300 | 1,198 |
|
Allegheny River Bl Conewango Creek At Warren
PA
USGS 03015310
|
5,920 | 4.72 | 3.1 | 153% | 1,370 | 28,500 | 1,172 |
|
Allegheny River At West Hickory
PA
USGS 03016000
|
8,590 | 5.48 | 10.7 | 195% | 1,450 | 44,900 | 1,060 |
|
Allegheny River At Franklin
PA
USGS 03025500
|
16,300 | 6.68 | 28.4 | 227% | 1,930 | 58,500 | 959 |
|
Allegheny River At Parker
PA
USGS 03031500
|
22,000 | 6.54 | 51.7 | 224% | 2,320 | 96,300 | 846 |
|
Allegheny River At Kittanning
PA
USGS 03036500
|
21,200 | 12.41 | 32.5 | 189% | 1,260 | 103,000 | 774 |
|
Allegheny River At Natrona
PA
USGS 03049500
|
23,900 | 12.70 | 38.2 | 143% | 1,930 | 110,000 | 747 |
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
Allegheny River
The Allegheny River spans over 325 miles and originates in Potter County, Pennsylvania. It flows through the Allegheny Mountains and ultimately joins the Monongahela River to form the Ohio River. Native American tribes such as the Seneca, Shawnee, and Mohawk once inhabited the region before European settlers arrived in the 1700s. The river's hydrology and course have been altered by various dams, including the Kinzua Dam, which created the Allegheny Reservoir. The Conemaugh River Lake and Tionesta Lake are other major reservoirs along the river. The Allegheny River is used for a variety of recreational activities, such as fishing, boating, and camping. The river is also a source of drinking water for multiple towns and cities, and its watersheds support agricultural industries throughout the region.
Track the Allegheny 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 Allegheny River
Where does the data for the Allegheny 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.