Seneca River Flow Today
As of November 3, 2026 at 2:30 AM, the Seneca River is flowing at 2,380 cfs near Port Byron Ny, NY — 90% of normal for the date and up 231% in 24 hours. ❤ Favorite
Seneca River map
See the Seneca River on a live map
Every gauge, dam and paddle run on the river, one tap each:
- Gauges now — which reaches are high or low
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Seneca River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Port Byron Ny, the Seneca River is running 2,380 cfs — 90% of normal, up 231% since yesterday. Along the river, 1 of 1 reporting gauges are near normal (the typical gauge is at 90% of normal).
In the last 24 hours the river is rising at Port Byron Ny (+231%).
How the Seneca River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Port Byron Ny375 ft 2,380 cfs90%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Seneca River streamgauge, placed by its own percent of normal. The line is the typical gauge (90%).
Seneca River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | Elevation |
|---|---|---|---|---|---|
|
Seneca River (erie Canal) Near Port Byron Ny NY
Nov 3, 2:30 AM · USGS 04235600 |
2,380 cfs | 90% | +231% | 4.29 ft | 375 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Seneca River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Seneca River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Seneca River
The Seneca River, located in upstate New York, stretches for approximately 61 miles and is a significant tributary of Lake Ontario. Historically, the Seneca River was a vital transportation route for Native American tribes, and later, for European settlers. The river is still used for commercial shipping and is home to several hydroelectric power plants, including the Seneca Pumped Storage Project, which is one of the largest pumped storage facilities in the world. The river is also home to several reservoirs and dams, including the Seneca Falls Dam, which was constructed in the early 1900s to supply power to the area. These reservoirs provide recreational opportunities, such as fishing and boating. Additionally, the river is important for agriculture, with several farms utilizing the fertile land surrounding the river for crops and livestock.
About the Seneca River
How is the Seneca River flowing right now?
As of November 3, 2026, the Seneca River is flowing at 2,380 cfs near Port Byron Ny, NY, about 90% of normal for the date. Every gauge’s live reading is in the table above.
Is the Seneca River running high or low?
The typical gauge on the Seneca River is at 90% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.