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River report

Genesee River Flow Today

As of October 12, 2026 at 2:15 AM, the Genesee River is flowing at 525 cfs near Mount Morris Ny, NY — 109% of normal for the date and up 2% in 24 hours. 4 of 4 USGS gauges reported in the last 3 days; flows range from 52 to 525 cfs. ❤ Favorite

USGS gauges
4 4 reporting · upstream → down
Genesee River At Wellsville Ny: 118% of normalGenesee River At Portageville Ny: 112% of normalGenesee River Near Mount Morris Ny: 109% of normalGenesee River At Avon Ny: 90% of normal
Typical gauge
111% of normal for the date
0%normal200%
Biggest flow now
525cfs Mount Morris Ny
Updated
Oct 12, 2:15 AM
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River briefing · Oct 12, 2026

Genesee 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 Mount Morris Ny, the Genesee River is running 525 cfs — 109% of normal, up 2% since yesterday. Along the river, 2 of 4 reporting gauges are above normal (the typical gauge is at 111% of normal).

In the last 24 hours the river is rising at Avon Ny (+79%).

Headwaters to mouth

How the Genesee 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

  1. Wellsville Ny1,479 ft 52 cfs118%
  2. Portageville Ny1,090 ft 409 cfs112%
  3. Mount Morris Ny546 ft 525 cfs109%
  4. Avon Ny516 ft 505 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 Genesee River streamgauge, placed by its own percent of normal. The line is the typical gauge (111%).

Typical gauge 111%
0%50%100% · normal150%200%+
Much below normal0Below normal1Near normal1Above normal2Much above normal0

Genesee River flow report

4 gauges
Streamgage Streamflow % of normal 24h Gage height To flood stage Elevation
Genesee River At Wellsville Ny NY
Oct 12, 1:45 AM · USGS 04221000
52 cfs 118% 0% 4.38 ft 6.6 ft below 1,479 ft
Genesee River At Portageville Ny NY
Oct 12, 2:00 AM · USGS 04223000
409 cfs 112% +1% 9.09 ft · 1,090 ft
Genesee River Near Mount Morris Ny NY
Oct 12, 2:15 AM · USGS 04227500
525 cfs 109% +2% 3.00 ft · 546 ft
Genesee River At Avon Ny NY
Oct 12, 2:15 AM · USGS 04228500
505 cfs 90% +79% 14.07 ft 18.9 ft below 516 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.

History

Genesee River streamflow over time

Daily total flow across every monitored gauge on the river.

Maximum streamflow by year

About this river

Genesee River

The Genesee River is a 157-mile-long river that runs through western New York State. The river has played an important role in the region's history, serving as a transportation route for the Seneca people and as a source of power for early settlers. Today, the river is used for a variety of recreational activities, including fishing, boating, and hiking. There are several reservoirs and dams along the river, including the Mount Morris Dam, which was built by the US Army Corps of Engineers in the 1950s to control flooding. The river also provides water for agricultural uses, including irrigation and livestock watering. Despite its importance to the region, the Genesee River has faced challenges due to pollution and habitat degradation, leading to conservation efforts to protect the river's ecosystem.

FAQ

About the Genesee River

How is the Genesee River flowing right now?

As of October 12, 2026, the Genesee River is flowing at 525 cfs near Mount Morris Ny, NY, about 109% of normal for the date. Across its 4 USGS gauges, current flows range from 52 to 525 cfs. Every gauge’s live reading is in the table above.

Is the Genesee River running high or low?

The typical gauge on the Genesee River is at 111% 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.

What is flood stage on the Genesee River?

The National Weather Service sets flood stages for Wellsville Ny (11.0 ft), Avon Ny (33.0 ft). The table shows how far each gauge is below its flood stage right now.

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.

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