Allegheny River At Salamanca Flow Report
As of July 17, 2026, Allegheny River At Salamanca is flowing at 408 cfs with a gage height of 2.81 ft, receding 13% over the past 24 hours. Source: USGS gauge #03011020, refreshed throughout the day.
Historical Data
Allegheny River At Salamanca at a glance
How Allegheny River At Salamanca is running right now, where it sits on the map, and the key gauge stats.
Allegheny River At Salamanca is flowing at 408 cfs, with the water sitting 2.81 ft at the gage. Flow is down 13% since yesterday as the gauge recedes.
This is USGS gauge #03011020 in New York. Over the past 10 days the average has been 626 cfs, peaking at 811 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the New York flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #03011020).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
Streamflow Forecast
Over the next 5 days, Allegheny River At Salamanca Ny is expected to hold near today's 408 cfs, toward roughly 415 cfs by 2026-07-22 (likely range 158-1090 cfs) -- running well below the seasonal normal.
Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.
| Date | Expected (p50) | Likely range (p25–p75) | vs normal | Projected stage |
|---|
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Allegheny River At Salamanca
The river's flow is affected by various constituents like precipitation, temperature, and watershed. The Kinzua Dam located upstream of the gauge affects the river's flow and also provides hydroelectric power. Seasonal trends show that the river's flow is highest during spring due to snowmelt and spring showers. The Allegheny River is known for its fishing opportunities, including smallmouth bass and walleye. Additionally, the river has cultural and historical significance, as it was used by Native American tribes and also played a role in the French and Indian War.
Nearby streamflow levels
Cross-check Allegheny River At Salamanca's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Allegheny River At Salamanca Ny | 408 cfs |
| Allegheny River At Eldred | 136 cfs |
| Cattaraugus Creek At Gowanda Ny | 138 cfs |
| Chadakoin River At Falconer Ny | 65 cfs |
| Conewango Creek At Russell | 176 cfs |
| Allegheny River At Kinzua Dam | 1,500 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Allegheny River At Salamanca. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Allegany State Park | 0 in |
| Little Valley | 0 in |
| Bradford | 0 in |
| Cattaraugus 3w | 0 in |
| Franklinville | 0 in |
| Kennedy 2.6 Se | 2 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Allegheny River At Salamanca.
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Allegheny River At Salamanca in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Allegheny River At Salamanca crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Allegheny River At Salamanca
Where does the streamflow data for Allegheny River At Salamanca come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 03011020. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Allegheny River At Salamanca rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Allegheny River At Salamanca report
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