Major Flood
17 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
14 ft
Minor Flood
11 ft
Action Stage
9 ft
What Floods at Each Level
20 ft
Extreme flood, levee is topped at 19.9 feet. Widespread flooding along the river throughout Allegany County. Heavy residential damages including Wellsville. Evacuations necessary.
17 ft
Major flood, major flooding all along the Genesee River throughout Allegany County. Commercial and residential damages. Road closures. Levee continues to protect most of Wellsville to 19.9 feet.
14 ft
Moderate flood, general flooding along the river in lowlying areas throughout Allegany County. Some residential and commercial damages. The levee protects most of Wellsville.
11 ft
Flood stage, banks overflow and begin to flood lowlying areas outside the levees in places such as Scio. Minor damages.
9 ft
Action stage, high flows. No flooding.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 22, 1972 | 20.7 ft | 38,500 cfs |
| Nov 24, 1950 | 16.2 ft | 23,300 cfs |
| Jan 18, 1996 | 16.13 ft | 22,700 cfs |
About This Gauge
USGS Site
NWS LID
WLLN6
River
Genesee River
County
Allegany, NY
Coordinates
42.1222°N, 77.9572°W
Get Flood Alerts for Genesee River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Genesee River at Wellsville?
The Genesee River at Wellsville gauge is maintained by USGS (site 04221000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Genesee River at Wellsville?
The NWS-defined flood stage for Genesee River at Wellsville is 11 feet. Action stage begins at 9 feet. Moderate flooding starts at 14 feet, and major flooding at 17 feet.
How do I get alerts when Genesee River rises?
Download StormCast free on Google Play, go to River Gauges, and add Genesee River at Wellsville to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Genesee River at Wellsville gauge located?
The gauge is located in Allegany County, New York at coordinates 42.1222°N, 77.9572°W. USGS site number: 04221000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Genesee River
On This River
Downstream: Genesee River at Portageville
More Resources
Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey
- Impact statements listed below may not be representative during times of ice jam flooding.
- Stage may be affected by ice during winter months.