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Hydrograph River at a Glance Download
Genesee River at Wellsville Stage (ft)Flow (kcfs)Observed: 6.35 ft at 3:15AM Jul 21, 2021Observed: 6.39 ft at 3:30AM Jul 21, 2021Observed: 6.41 ft at 3:45AM Jul 21, 2021Observed: 6.43 ft at 4:00AM Jul 21, 2021Highest Observation: 6.44 ft at 4:15AM Jul 21, 2021Highest Observation: 6.44 ft at 4:30AM Jul 21, 2021Highest Observation: 6.44 ft at 4:45AM Jul 21, 2021Observed: 6.43 ft at 5:00AM Jul 21, 2021Observed: 6.41 ft at 5:15AM Jul 21, 2021Observed: 6.39 ft at 5:30AM Jul 21, 2021Observed: 6.38 ft at 5:45AM Jul 21, 2021Observed: 6.35 ft at 6:00AM Jul 21, 2021Observed: 6.34 ft at 6:15AM Jul 21, 2021Observed: 6.33 ft at 6:30AM Jul 21, 2021Observed: 6.31 ft at 6:45AM Jul 21, 2021Observed: 6.3 ft at 7:00AM Jul 21, 2021Observed: 6.29 ft at 7:15AM Jul 21, 2021Observed: 6.28 ft at 7:30AM Jul 21, 2021Observed: 6.27 ft at 7:45AM Jul 21, 2021Observed: 6.27 ft at 8:00AM Jul 21, 2021Observed: 6.25 ft at 8:15AM Jul 21, 2021Observed: 6.25 ft at 8:30AM Jul 21, 2021Observed: 6.24 ft at 8:45AM Jul 21, 2021Observed: 6.23 ft at 9:00AM Jul 21, 2021Observed: 6.23 ft at 9:15AM Jul 21, 2021Observed: 6.22 ft at 9:30AM Jul 21, 2021Observed: 6.22 ft at 9:45AM Jul 21, 2021Observed: 6.21 ft at 10:00AM Jul 21, 2021Observed: 6.19 ft at 10:15AM Jul 21, 2021Observed: 6.18 ft at 10:30AM Jul 21, 2021Observed: 6.18 ft at 10:45AM Jul 21, 2021Observed: 6.17 ft at 11:00AM Jul 21, 2021Observed: 6.16 ft at 11:15AM Jul 21, 2021Observed: 6.15 ft at 11:30AM Jul 21, 2021Observed: 6.15 ft at 11:45AM Jul 21, 2021Observed: 6.13 ft at 12:00PM Jul 21, 2021Observed: 6.12 ft at 12:15PM Jul 21, 2021Observed: 6.11 ft at 12:30PM Jul 21, 2021Observed: 6.09 ft at 12:45PM Jul 21, 2021Observed: 6.08 ft at 1:00PM Jul 21, 2021Observed: 6.07 ft at 1:15PM Jul 21, 2021Observed: 6.05 ft at 1:30PM Jul 21, 2021Observed: 6.05 ft at 1:45PM Jul 21, 2021Observed: 6.04 ft at 2:00PM Jul 21, 2021Observed: 6.03 ft at 2:15PM Jul 21, 2021Observed: 6.02 ft at 2:30PM Jul 21, 2021Observed: 6.01 ft at 2:45PM Jul 21, 2021Observed: 5.99 ft at 3:00PM Jul 21, 2021Observed: 5.99 ft at 3:15PM Jul 21, 2021Observed: 5.98 ft at 3:30PM Jul 21, 2021Observed: 5.96 ft at 3:45PM Jul 21, 2021Observed: 5.96 ft at 4:00PM Jul 21, 2021Observed: 5.94 ft at 4:15PM Jul 21, 2021Observed: 5.93 ft at 4:30PM Jul 21, 2021Observed: 5.93 ft at 4:45PM Jul 21, 2021Observed: 5.92 ft at 5:00PM Jul 21, 2021Observed: 5.92 ft at 5:15PM Jul 21, 2021Observed: 5.91 ft at 5:30PM Jul 21, 2021Observed: 5.9 ft at 5:45PM Jul 21, 2021Observed: 5.89 ft at 6:00PM Jul 21, 2021Observed: 5.89 ft at 6:01PM Jul 21, 2021Observed: 5.88 ft at 6:15PM Jul 21, 2021Observed: 5.87 ft at 6:30PM Jul 21, 2021Observed: 5.87 ft at 6:45PM Jul 21, 2021Observed: 5.86 ft at 7:00PM Jul 21, 2021Observed: 5.85 ft at 7:15PM Jul 21, 2021Observed: 5.84 ft at 7:30PM Jul 21, 2021Observed: 5.83 ft at 7:45PM Jul 21, 2021Observed: 5.82 ft at 8:00PM Jul 21, 2021Observed: 5.82 ft at 8:15PM Jul 21, 2021Observed: 5.82 ft at 8:30PM Jul 21, 2021Observed: 5.81 ft at 8:45PM Jul 21, 2021Observed: 5.8 ft at 9:00PM Jul 21, 2021Observed: 5.79 ft at 9:15PM Jul 21, 2021Observed: 5.78 ft at 9:30PM Jul 21, 2021Observed: 5.78 ft at 9:45PM Jul 21, 2021Observed: 5.77 ft at 10:00PM Jul 21, 2021Observed: 5.77 ft at 10:15PM Jul 21, 2021Observed: 5.76 ft at 10:30PM Jul 21, 2021Observed: 5.76 ft at 10:45PM Jul 21, 2021Observed: 5.75 ft at 11:00PM Jul 21, 2021Observed: 5.74 ft at 11:15PM Jul 21, 2021Observed: 5.74 ft at 11:30PM Jul 21, 2021Observed: 5.73 ft at 11:45PM Jul 21, 2021Observed: 5.73 ft at 12:00AM Jul 22, 2021Observed: 5.72 ft at 12:15AM Jul 22, 2021Observed: 5.71 ft at 12:30AM Jul 22, 2021Observed: 5.71 ft at 12:45AM Jul 22, 2021Observed: 5.7 ft at 1:00AM Jul 22, 2021Observed: 5.7 ft at 1:15AM Jul 22, 2021Observed: 5.7 ft at 1:30AM Jul 22, 2021Observed: 5.69 ft at 1:45AM Jul 22, 2021Observed: 5.69 ft at 2:00AM Jul 22, 2021Observed: 5.68 ft at 2:15AM Jul 22, 2021Observed: 5.68 ft at 2:30AM Jul 22, 2021Observed: 5.68 ft at 2:45AM Jul 22, 2021Observed: 5.67 ft at 3:00AM Jul 22, 2021Observed: 5.66 ft at 3:15AM Jul 22, 2021Observed: 5.66 ft at 3:30AM Jul 22, 2021Observed: 5.66 ft at 3:45AM Jul 22, 2021Observed: 5.65 ft at 4:00AM Jul 22, 2021Observed: 5.65 ft at 4:15AM Jul 22, 2021Observed: 5.65 ft at 4:30AM Jul 22, 2021Observed: 5.64 ft at 4:45AM Jul 22, 2021Observed: 5.64 ft at 5:00AM Jul 22, 2021Observed: 5.63 ft at 5:15AM Jul 22, 2021Observed: 5.63 ft at 5:30AM Jul 22, 2021Observed: 5.63 ft at 5:45AM Jul 22, 2021Observed: 5.62 ft at 6:00AM Jul 22, 2021Observed: 5.62 ft at 6:15AM Jul 22, 2021Observed: 5.62 ft at 6:30AM Jul 22, 2021Observed: 5.62 ft at 6:45AM Jul 22, 2021Observed: 5.61 ft at 7:00AM Jul 22, 2021Observed: 5.61 ft at 7:15AM Jul 22, 2021Observed: 5.6 ft at 7:30AM Jul 22, 2021Observed: 5.6 ft at 7:45AM Jul 22, 2021Observed: 5.6 ft at 8:00AM Jul 22, 2021Observed: 5.6 ft at 8:15AM Jul 22, 2021Observed: 5.59 ft at 8:30AM Jul 22, 2021Observed: 5.6 ft at 8:45AM Jul 22, 2021Observed: 5.59 ft at 9:00AM Jul 22, 2021Observed: 5.59 ft at 9:15AM Jul 22, 2021Observed: 5.59 ft at 9:30AM Jul 22, 2021Observed: 5.58 ft at 9:45AM Jul 22, 2021Observed: 5.58 ft at 10:00AM Jul 22, 2021Observed: 5.58 ft at 10:15AM Jul 22, 2021Observed: 5.58 ft at 10:30AM Jul 22, 2021Observed: 5.58 ft at 10:45AM Jul 22, 2021Observed: 5.58 ft at 11:00AM Jul 22, 2021Observed: 5.57 ft at 11:15AM Jul 22, 2021Observed: 5.57 ft at 11:30AM Jul 22, 2021Observed: 5.57 ft at 11:45AM Jul 22, 2021Observed: 5.57 ft at 12:00PM Jul 22, 2021Observed: 5.57 ft at 12:15PM Jul 22, 2021Observed: 5.57 ft at 12:30PM Jul 22, 2021Observed: 5.56 ft at 12:45PM Jul 22, 2021Observed: 5.56 ft at 1:00PM Jul 22, 2021Observed: 5.56 ft at 1:15PM Jul 22, 2021Observed: 5.56 ft at 1:30PM Jul 22, 2021Observed: 5.56 ft at 1:45PM Jul 22, 2021Observed: 5.56 ft at 2:00PM Jul 22, 2021Observed: 5.55 ft at 2:15PM Jul 22, 2021Observed: 5.56 ft at 2:30PM Jul 22, 2021Observed: 5.55 ft at 2:45PM Jul 22, 2021Observed: 5.55 ft at 3:00PM Jul 22, 2021Observed: 5.54 ft at 3:15PM Jul 22, 2021Observed: 5.54 ft at 3:30PM Jul 22, 2021Observed: 5.54 ft at 3:45PM Jul 22, 2021Observed: 5.54 ft at 4:00PM Jul 22, 2021Observed: 5.53 ft at 4:15PM Jul 22, 2021Observed: 5.53 ft at 4:30PM Jul 22, 2021Observed: 5.53 ft at 4:45PM Jul 22, 2021Observed: 5.53 ft at 5:00PM Jul 22, 2021Observed: 5.52 ft at 5:15PM Jul 22, 2021Observed: 5.52 ft at 5:30PM Jul 22, 2021Observed: 5.52 ft at 5:45PM Jul 22, 2021Observed: 5.51 ft at 6:00PM Jul 22, 2021Observed: 5.51 ft at 6:01PM Jul 22, 2021Observed: 5.51 ft at 6:15PM Jul 22, 2021Observed: 5.51 ft at 6:30PM Jul 22, 2021Observed: 5.51 ft at 6:45PM Jul 22, 2021Observed: 5.5 ft at 7:00PM Jul 22, 2021Observed: 5.5 ft at 7:15PM Jul 22, 2021Observed: 5.49 ft at 7:30PM Jul 22, 2021Observed: 5.49 ft at 7:45PM Jul 22, 2021Observed: 5.48 ft at 8:00PM Jul 22, 2021Observed: 5.49 ft at 8:15PM Jul 22, 2021Observed: 5.48 ft at 8:30PM Jul 22, 2021Observed: 5.48 ft at 8:45PM Jul 22, 2021Observed: 5.47 ft at 9:00PM Jul 22, 2021Observed: 5.47 ft at 9:15PM Jul 22, 2021Observed: 5.47 ft at 9:30PM Jul 22, 2021Observed: 5.46 ft at 9:45PM Jul 22, 2021Observed: 5.46 ft at 10:00PM Jul 22, 2021Observed: 5.45 ft at 10:15PM Jul 22, 2021Observed: 5.45 ft at 10:30PM Jul 22, 2021Observed: 5.45 ft at 10:45PM Jul 22, 2021Observed: 5.45 ft at 11:00PM Jul 22, 2021Observed: 5.45 ft at 11:15PM Jul 22, 2021Observed: 5.44 ft at 11:30PM Jul 22, 2021Observed: 5.43 ft at 11:45PM Jul 22, 2021Observed: 5.43 ft at 12:00AM Jul 23, 2021Observed: 5.43 ft at 12:15AM Jul 23, 2021Observed: 5.43 ft at 12:30AM Jul 23, 2021Observed: 5.43 ft at 12:45AM Jul 23, 2021Observed: 5.42 ft at 1:00AM Jul 23, 2021Observed: 5.42 ft at 1:15AM Jul 23, 2021Observed: 5.42 ft at 1:30AM Jul 23, 2021Observed: 5.42 ft at 1:45AM Jul 23, 2021Observed: 5.41 ft at 2:00AM Jul 23, 2021Observed: 5.42 ft at 2:15AM Jul 23, 2021Observed: 5.41 ft at 2:30AM Jul 23, 2021Observed: 5.41 ft at 2:45AM Jul 23, 2021Observed: 5.41 ft at 3:00AM Jul 23, 2021Observed: 5.41 ft at 3:15AM Jul 23, 2021Observed: 5.41 ft at 3:30AM Jul 23, 2021Observed: 5.4 ft at 3:45AM Jul 23, 2021Observed: 5.4 ft at 4:00AM Jul 23, 2021Observed: 5.4 ft at 4:15AM Jul 23, 2021Observed: 5.4 ft at 4:30AM Jul 23, 2021Observed: 5.39 ft at 4:45AM Jul 23, 2021Observed: 5.39 ft at 5:00AM Jul 23, 2021Observed: 5.39 ft at 5:15AM Jul 23, 2021Observed: 5.39 ft at 5:30AM Jul 23, 2021Observed: 5.38 ft at 5:45AM Jul 23, 2021Observed: 5.38 ft at 6:00AM Jul 23, 2021Observed: 5.38 ft at 6:15AM Jul 23, 2021Observed: 5.38 ft at 6:30AM Jul 23, 2021Observed: 5.38 ft at 6:45AM Jul 23, 2021Observed: 5.38 ft at 7:00AM Jul 23, 2021Observed: 5.38 ft at 7:15AM Jul 23, 2021Observed: 5.38 ft at 7:30AM Jul 23, 2021Observed: 5.38 ft at 7:45AM Jul 23, 2021Observed: 5.37 ft at 8:00AM Jul 23, 2021Observed: 5.38 ft at 8:15AM Jul 23, 2021Observed: 5.37 ft at 8:30AM Jul 23, 2021Observed: 5.37 ft at 8:45AM Jul 23, 2021Observed: 5.37 ft at 9:00AM Jul 23, 2021Observed: 5.37 ft at 9:15AM Jul 23, 2021Observed: 5.37 ft at 9:30AM Jul 23, 2021Observed: 5.37 ft at 9:45AM Jul 23, 2021Observed: 5.36 ft at 10:00AM Jul 23, 2021Observed: 5.36 ft at 10:15AM Jul 23, 2021Observed: 5.36 ft at 10:30AM Jul 23, 2021Observed: 5.36 ft at 10:45AM Jul 23, 2021Observed: 5.36 ft at 11:00AM Jul 23, 2021Observed: 5.36 ft at 11:15AM Jul 23, 2021Observed: 5.36 ft at 11:30AM Jul 23, 2021Observed: 5.35 ft at 11:45AM Jul 23, 2021Observed: 5.35 ft at 12:00PM Jul 23, 2021Observed: 5.35 ft at 12:15PM Jul 23, 2021Observed: 5.35 ft at 12:30PM Jul 23, 2021Observed: 5.35 ft at 12:45PM Jul 23, 2021Observed: 5.35 ft at 1:00PM Jul 23, 2021Observed: 5.35 ft at 1:15PM Jul 23, 2021Observed: 5.35 ft at 1:30PM Jul 23, 2021Observed: 5.35 ft at 1:45PM Jul 23, 2021Observed: 5.34 ft at 2:00PM Jul 23, 2021Observed: 5.34 ft at 2:15PM Jul 23, 2021Observed: 5.34 ft at 2:30PM Jul 23, 2021Observed: 5.34 ft at 2:45PM Jul 23, 2021Observed: 5.33 ft at 3:00PM Jul 23, 2021Observed: 5.33 ft at 3:15PM Jul 23, 2021Observed: 5.33 ft at 3:30PM Jul 23, 2021Observed: 5.33 ft at 3:45PM Jul 23, 2021Observed: 5.33 ft at 4:00PM Jul 23, 2021Observed: 5.33 ft at 4:15PM Jul 23, 2021Observed: 5.33 ft at 4:30PM Jul 23, 2021Observed: 5.32 ft at 4:45PM Jul 23, 2021Observed: 5.32 ft at 5:00PM Jul 23, 2021Observed: 5.32 ft at 5:15PM Jul 23, 2021Observed: 5.32 ft at 5:30PM Jul 23, 2021Observed: 5.31 ft at 5:45PM Jul 23, 2021Observed: 5.31 ft at 6:00PM Jul 23, 2021Observed: 5.31 ft at 6:15PM Jul 23, 2021Observed: 5.31 ft at 6:16PM Jul 23, 2021Observed: 5.31 ft at 6:30PM Jul 23, 2021Observed: 5.3 ft at 6:45PM Jul 23, 2021Observed: 5.3 ft at 7:00PM Jul 23, 2021Observed: 5.3 ft at 7:15PM Jul 23, 2021Observed: 5.3 ft at 7:30PM Jul 23, 2021Observed: 5.29 ft at 7:45PM Jul 23, 2021Observed: 5.29 ft at 8:00PM Jul 23, 2021Observed: 5.29 ft at 8:15PM Jul 23, 2021Observed: 5.29 ft at 8:30PM Jul 23, 2021Observed: 5.29 ft at 8:45PM Jul 23, 2021Observed: 5.28 ft at 9:00PM Jul 23, 2021Observed: 5.28 ft at 9:15PM Jul 23, 2021Observed: 5.28 ft at 9:30PM Jul 23, 2021Observed: 5.28 ft at 9:45PM Jul 23, 2021Observed: 5.27 ft at 10:00PM Jul 23, 2021Observed: 5.27 ft at 10:15PM Jul 23, 2021Observed: 5.27 ft at 10:30PM Jul 23, 2021Observed: 5.27 ft at 10:45PM Jul 23, 2021Observed: 5.26 ft at 11:00PM Jul 23, 2021Observed: 5.26 ft at 11:15PM Jul 23, 2021Observed: 5.26 ft at 11:30PM Jul 23, 2021Observed: 5.26 ft at 11:45PM Jul 23, 2021Observed: 5.26 ft at 12:00AM Jul 24, 2021Observed: 5.25 ft at 12:15AM Jul 24, 2021Observed: 5.25 ft at 12:30AM Jul 24, 2021Observed: 5.25 ft at 12:45AM Jul 24, 2021Observed: 5.25 ft at 1:00AM Jul 24, 2021Observed: 5.24 ft at 1:15AM Jul 24, 2021Observed: 5.24 ft at 1:30AM Jul 24, 2021Observed: 5.24 ft at 1:45AM Jul 24, 2021Highest Forecast: 5.2 ft 8:00AM Jul 24, 2021Highest Forecast: 5.2 ft 2:00PM Jul 24, 2021Highest Forecast: 5.2 ft 8:00PM Jul 24, 2021Highest Forecast: 5.2 ft 2:00AM Jul 25, 2021Highest Forecast: 5.2 ft 8:00AM Jul 25, 2021Highest Forecast: 5.2 ft 2:00PM Jul 25, 2021Highest Forecast: 5.2 ft 8:00PM Jul 25, 2021Forecast: 5.1 ft 2:00AM Jul 26, 2021Forecast: 5.1 ft 8:00AM Jul 26, 2021WLLN6(plotting HGIRG) Graph Created (3:01AM Jul 24, 2021)ObservedForecast (issued 10:56AM Jul 23)Latest observed value: 5.24 ft at 1:45 AM EDT 24-Jul-2021. Flood Stage is 11 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Genesee River at Wellsville are issued routinely year-round.
Return to Area Map
Downstream Gauge Downstream Gauge - at Portageville
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 14
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 20.70 ft on 06/23/1972
(2) 16.20 ft on 11/25/1950
(3) 16.13 ft on 01/19/1996
(4) 14.90 ft on 01/22/1959
(5) 14.80 ft on 03/05/1964
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.11 ft on 01/13/2017
(2) 11.55 ft on 01/25/2010
(3) 11.64 ft on 03/15/2007
(4) 16.13 ft on 01/19/1996
(5) 13.26 ft on 06/20/1989
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 4.00 ft on 09/15/1973
(2) 4.20 ft on 08/03/1999
(3) 4.24 ft on 09/29/1980
(4) 4.40 ft on 08/15/1996
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
20 Extreme flood, levee is topped at 19.9 feet. Widespread flooding throughout the County near the river. Heavy residential damages including Wellsville. Evacuations necessary.
17 Major flood, major flooding all along the Genesee River throughout the County. Commercial and residential damages. Road closures. Levee continues to protect most of Wellsville to 19.9 feet.
14 Moderate flood, general flooding along the river in lowlying areas throughout the County. Some residential and commercial damages. The levee protects most of Wellsville.
11 Flood stage, banks overflow and begin to flood lowlying areas outside the levees in places such as Scio and Whitesville. Minor damages.
9 Action stage, high flows. No flooding.
About This Location Collapse

Latitude: 42.122222° N, Longitude: 77.957500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 1469.51 ft 1480.51 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 1470.00 ft 1481.00 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics.

Click individual graphics to enlarge.

Observations Courtesy of the U.S. Geological Survey.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Buffalo Weather Forecast Office
587 Aero Drive
Buffalo, NY 14225-1405
(716) 565-0204
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