Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 
Hydrograph River at a Glance Download
Genesee River at Wellsville Stage (ft)Flow (kcfs)Highest Observation: 4.44 ft at 4:30AM Jul 02, 2020Highest Observation: 4.44 ft at 4:45AM Jul 02, 2020Highest Observation: 4.44 ft at 5:00AM Jul 02, 2020Highest Observation: 4.44 ft at 5:15AM Jul 02, 2020Highest Observation: 4.44 ft at 5:30AM Jul 02, 2020Highest Observation: 4.44 ft at 5:45AM Jul 02, 2020Highest Observation: 4.44 ft at 6:00AM Jul 02, 2020Highest Observation: 4.44 ft at 6:15AM Jul 02, 2020Highest Observation: 4.44 ft at 6:30AM Jul 02, 2020Highest Observation: 4.44 ft at 6:45AM Jul 02, 2020Highest Observation: 4.44 ft at 7:00AM Jul 02, 2020Highest Observation: 4.44 ft at 7:15AM Jul 02, 2020Highest Observation: 4.44 ft at 7:30AM Jul 02, 2020Highest Observation: 4.44 ft at 7:45AM Jul 02, 2020Highest Observation: 4.44 ft at 8:00AM Jul 02, 2020Observed: 4.43 ft at 8:15AM Jul 02, 2020Observed: 4.43 ft at 8:30AM Jul 02, 2020Observed: 4.43 ft at 8:45AM Jul 02, 2020Observed: 4.43 ft at 8:46AM Jul 02, 2020Observed: 4.43 ft at 9:00AM Jul 02, 2020Observed: 4.43 ft at 9:15AM Jul 02, 2020Observed: 4.43 ft at 9:30AM Jul 02, 2020Observed: 4.42 ft at 9:45AM Jul 02, 2020Observed: 4.42 ft at 10:00AM Jul 02, 2020Observed: 4.42 ft at 10:15AM Jul 02, 2020Observed: 4.42 ft at 10:30AM Jul 02, 2020Observed: 4.42 ft at 10:45AM Jul 02, 2020Observed: 4.42 ft at 11:00AM Jul 02, 2020Observed: 4.42 ft at 11:15AM Jul 02, 2020Observed: 4.42 ft at 11:30AM Jul 02, 2020Observed: 4.42 ft at 11:45AM Jul 02, 2020Observed: 4.42 ft at 12:00PM Jul 02, 2020Observed: 4.42 ft at 12:15PM Jul 02, 2020Observed: 4.42 ft at 12:30PM Jul 02, 2020Observed: 4.41 ft at 12:45PM Jul 02, 2020Observed: 4.42 ft at 1:00PM Jul 02, 2020Observed: 4.42 ft at 1:15PM Jul 02, 2020Observed: 4.41 ft at 1:30PM Jul 02, 2020Observed: 4.42 ft at 1:45PM Jul 02, 2020Observed: 4.41 ft at 2:00PM Jul 02, 2020Observed: 4.41 ft at 2:15PM Jul 02, 2020Observed: 4.41 ft at 2:30PM Jul 02, 2020Observed: 4.41 ft at 2:45PM Jul 02, 2020Observed: 4.41 ft at 3:00PM Jul 02, 2020Observed: 4.41 ft at 3:15PM Jul 02, 2020Observed: 4.41 ft at 3:30PM Jul 02, 2020Observed: 4.41 ft at 3:45PM Jul 02, 2020Observed: 4.41 ft at 4:00PM Jul 02, 2020Observed: 4.41 ft at 4:15PM Jul 02, 2020Observed: 4.42 ft at 4:30PM Jul 02, 2020Observed: 4.42 ft at 4:45PM Jul 02, 2020Observed: 4.42 ft at 5:00PM Jul 02, 2020Observed: 4.42 ft at 5:15PM Jul 02, 2020Observed: 4.42 ft at 5:30PM Jul 02, 2020Observed: 4.42 ft at 5:45PM Jul 02, 2020Observed: 4.42 ft at 6:00PM Jul 02, 2020Observed: 4.42 ft at 6:15PM Jul 02, 2020Observed: 4.42 ft at 6:30PM Jul 02, 2020Observed: 4.42 ft at 6:45PM Jul 02, 2020Observed: 4.42 ft at 7:00PM Jul 02, 2020Observed: 4.42 ft at 7:15PM Jul 02, 2020Observed: 4.42 ft at 7:30PM Jul 02, 2020Observed: 4.42 ft at 7:45PM Jul 02, 2020Observed: 4.42 ft at 8:00PM Jul 02, 2020Observed: 4.42 ft at 8:15PM Jul 02, 2020Observed: 4.42 ft at 8:30PM Jul 02, 2020Observed: 4.42 ft at 8:45PM Jul 02, 2020Observed: 4.42 ft at 9:00PM Jul 02, 2020Observed: 4.42 ft at 9:15PM Jul 02, 2020Observed: 4.42 ft at 9:30PM Jul 02, 2020Observed: 4.42 ft at 9:45PM Jul 02, 2020Observed: 4.42 ft at 10:00PM Jul 02, 2020Observed: 4.42 ft at 10:15PM Jul 02, 2020Observed: 4.42 ft at 10:30PM Jul 02, 2020Observed: 4.42 ft at 10:45PM Jul 02, 2020Observed: 4.42 ft at 11:00PM Jul 02, 2020Observed: 4.42 ft at 11:15PM Jul 02, 2020Observed: 4.42 ft at 11:30PM Jul 02, 2020Observed: 4.42 ft at 11:45PM Jul 02, 2020Observed: 4.42 ft at 12:00AM Jul 03, 2020Observed: 4.42 ft at 12:15AM Jul 03, 2020Observed: 4.42 ft at 12:30AM Jul 03, 2020Observed: 4.42 ft at 12:45AM Jul 03, 2020Observed: 4.42 ft at 1:00AM Jul 03, 2020Observed: 4.42 ft at 1:15AM Jul 03, 2020Observed: 4.42 ft at 1:30AM Jul 03, 2020Observed: 4.42 ft at 1:45AM Jul 03, 2020Observed: 4.42 ft at 2:00AM Jul 03, 2020Observed: 4.42 ft at 2:15AM Jul 03, 2020Observed: 4.42 ft at 2:30AM Jul 03, 2020Observed: 4.41 ft at 2:45AM Jul 03, 2020Observed: 4.41 ft at 3:00AM Jul 03, 2020Observed: 4.41 ft at 3:15AM Jul 03, 2020Observed: 4.41 ft at 3:30AM Jul 03, 2020Observed: 4.41 ft at 3:45AM Jul 03, 2020Observed: 4.41 ft at 4:00AM Jul 03, 2020Observed: 4.41 ft at 4:15AM Jul 03, 2020Observed: 4.41 ft at 4:30AM Jul 03, 2020Observed: 4.41 ft at 4:45AM Jul 03, 2020Observed: 4.41 ft at 5:00AM Jul 03, 2020Observed: 4.41 ft at 5:15AM Jul 03, 2020Observed: 4.41 ft at 5:30AM Jul 03, 2020Observed: 4.41 ft at 5:45AM Jul 03, 2020Observed: 4.41 ft at 6:00AM Jul 03, 2020Observed: 4.41 ft at 6:15AM Jul 03, 2020Observed: 4.41 ft at 6:30AM Jul 03, 2020Observed: 4.41 ft at 6:45AM Jul 03, 2020Observed: 4.41 ft at 7:00AM Jul 03, 2020Observed: 4.41 ft at 7:15AM Jul 03, 2020Observed: 4.41 ft at 7:30AM Jul 03, 2020Observed: 4.4 ft at 7:45AM Jul 03, 2020Observed: 4.4 ft at 8:00AM Jul 03, 2020Observed: 4.4 ft at 8:15AM Jul 03, 2020Observed: 4.4 ft at 8:30AM Jul 03, 2020Observed: 4.4 ft at 8:45AM Jul 03, 2020Observed: 4.4 ft at 8:46AM Jul 03, 2020Observed: 4.4 ft at 9:00AM Jul 03, 2020Observed: 4.4 ft at 9:15AM Jul 03, 2020Observed: 4.4 ft at 9:30AM Jul 03, 2020Observed: 4.4 ft at 9:45AM Jul 03, 2020Observed: 4.4 ft at 10:00AM Jul 03, 2020Observed: 4.4 ft at 10:15AM Jul 03, 2020Observed: 4.4 ft at 10:30AM Jul 03, 2020Observed: 4.4 ft at 10:45AM Jul 03, 2020Observed: 4.4 ft at 11:00AM Jul 03, 2020Observed: 4.4 ft at 11:15AM Jul 03, 2020Observed: 4.4 ft at 11:30AM Jul 03, 2020Observed: 4.4 ft at 11:45AM Jul 03, 2020Observed: 4.4 ft at 12:00PM Jul 03, 2020Observed: 4.4 ft at 12:15PM Jul 03, 2020Observed: 4.4 ft at 12:30PM Jul 03, 2020Observed: 4.4 ft at 12:45PM Jul 03, 2020Observed: 4.4 ft at 1:00PM Jul 03, 2020Observed: 4.4 ft at 1:15PM Jul 03, 2020Observed: 4.4 ft at 1:30PM Jul 03, 2020Observed: 4.4 ft at 1:45PM Jul 03, 2020Observed: 4.4 ft at 2:00PM Jul 03, 2020Observed: 4.4 ft at 2:15PM Jul 03, 2020Observed: 4.4 ft at 2:30PM Jul 03, 2020Observed: 4.4 ft at 2:45PM Jul 03, 2020Observed: 4.4 ft at 3:00PM Jul 03, 2020Observed: 4.41 ft at 3:15PM Jul 03, 2020Observed: 4.4 ft at 3:30PM Jul 03, 2020Observed: 4.4 ft at 3:45PM Jul 03, 2020Observed: 4.4 ft at 4:00PM Jul 03, 2020Observed: 4.4 ft at 4:15PM Jul 03, 2020Observed: 4.4 ft at 4:30PM Jul 03, 2020Observed: 4.4 ft at 4:45PM Jul 03, 2020Observed: 4.4 ft at 5:00PM Jul 03, 2020Observed: 4.4 ft at 5:15PM Jul 03, 2020Observed: 4.4 ft at 5:30PM Jul 03, 2020Observed: 4.4 ft at 5:45PM Jul 03, 2020Observed: 4.4 ft at 6:00PM Jul 03, 2020Observed: 4.4 ft at 6:15PM Jul 03, 2020Observed: 4.4 ft at 6:30PM Jul 03, 2020Observed: 4.4 ft at 6:45PM Jul 03, 2020Observed: 4.4 ft at 7:00PM Jul 03, 2020Observed: 4.4 ft at 7:15PM Jul 03, 2020Observed: 4.4 ft at 7:30PM Jul 03, 2020Observed: 4.4 ft at 7:45PM Jul 03, 2020Observed: 4.4 ft at 8:00PM Jul 03, 2020Observed: 4.4 ft at 8:15PM Jul 03, 2020Observed: 4.4 ft at 8:30PM Jul 03, 2020Observed: 4.4 ft at 8:45PM Jul 03, 2020Observed: 4.4 ft at 9:00PM Jul 03, 2020Observed: 4.4 ft at 9:15PM Jul 03, 2020Observed: 4.4 ft at 9:30PM Jul 03, 2020Observed: 4.4 ft at 9:45PM Jul 03, 2020Observed: 4.4 ft at 10:00PM Jul 03, 2020Observed: 4.4 ft at 10:15PM Jul 03, 2020Observed: 4.4 ft at 10:30PM Jul 03, 2020Observed: 4.4 ft at 10:45PM Jul 03, 2020Observed: 4.4 ft at 11:00PM Jul 03, 2020Observed: 4.4 ft at 11:15PM Jul 03, 2020Observed: 4.4 ft at 11:30PM Jul 03, 2020Observed: 4.4 ft at 11:45PM Jul 03, 2020Observed: 4.4 ft at 12:00AM Jul 04, 2020Observed: 4.4 ft at 12:15AM Jul 04, 2020Observed: 4.4 ft at 12:30AM Jul 04, 2020Observed: 4.4 ft at 12:45AM Jul 04, 2020Observed: 4.4 ft at 1:00AM Jul 04, 2020Observed: 4.4 ft at 1:15AM Jul 04, 2020Observed: 4.4 ft at 1:30AM Jul 04, 2020Observed: 4.4 ft at 1:45AM Jul 04, 2020Observed: 4.4 ft at 2:00AM Jul 04, 2020Observed: 4.4 ft at 2:15AM Jul 04, 2020Observed: 4.4 ft at 2:30AM Jul 04, 2020Observed: 4.4 ft at 2:45AM Jul 04, 2020Observed: 4.4 ft at 3:00AM Jul 04, 2020Observed: 4.4 ft at 3:15AM Jul 04, 2020Observed: 4.4 ft at 3:30AM Jul 04, 2020Observed: 4.4 ft at 3:45AM Jul 04, 2020Observed: 4.4 ft at 4:00AM Jul 04, 2020Observed: 4.4 ft at 4:15AM Jul 04, 2020Observed: 4.4 ft at 4:30AM Jul 04, 2020Observed: 4.4 ft at 4:45AM Jul 04, 2020Observed: 4.4 ft at 5:00AM Jul 04, 2020Observed: 4.4 ft at 5:15AM Jul 04, 2020Observed: 4.4 ft at 5:30AM Jul 04, 2020Observed: 4.4 ft at 5:45AM Jul 04, 2020Observed: 4.4 ft at 6:00AM Jul 04, 2020Observed: 4.4 ft at 6:15AM Jul 04, 2020Observed: 4.4 ft at 6:30AM Jul 04, 2020Observed: 4.4 ft at 6:45AM Jul 04, 2020Observed: 4.4 ft at 7:00AM Jul 04, 2020Observed: 4.4 ft at 7:15AM Jul 04, 2020Observed: 4.4 ft at 7:30AM Jul 04, 2020Observed: 4.4 ft at 7:45AM Jul 04, 2020Observed: 4.4 ft at 8:00AM Jul 04, 2020Observed: 4.4 ft at 8:15AM Jul 04, 2020Observed: 4.4 ft at 8:30AM Jul 04, 2020Observed: 4.4 ft at 8:45AM Jul 04, 2020Observed: 4.4 ft at 8:46AM Jul 04, 2020Observed: 4.4 ft at 9:00AM Jul 04, 2020Observed: 4.4 ft at 9:15AM Jul 04, 2020Observed: 4.4 ft at 9:30AM Jul 04, 2020Observed: 4.4 ft at 9:45AM Jul 04, 2020Observed: 4.4 ft at 10:00AM Jul 04, 2020Observed: 4.4 ft at 10:15AM Jul 04, 2020Observed: 4.4 ft at 10:30AM Jul 04, 2020Observed: 4.4 ft at 10:45AM Jul 04, 2020Observed: 4.4 ft at 11:00AM Jul 04, 2020Observed: 4.39 ft at 11:15AM Jul 04, 2020Observed: 4.4 ft at 11:30AM Jul 04, 2020Observed: 4.39 ft at 11:45AM Jul 04, 2020Observed: 4.39 ft at 12:00PM Jul 04, 2020Observed: 4.4 ft at 12:15PM Jul 04, 2020Observed: 4.4 ft at 12:30PM Jul 04, 2020Observed: 4.39 ft at 12:45PM Jul 04, 2020Observed: 4.39 ft at 1:00PM Jul 04, 2020Observed: 4.4 ft at 1:15PM Jul 04, 2020Observed: 4.39 ft at 1:30PM Jul 04, 2020Observed: 4.39 ft at 1:45PM Jul 04, 2020Observed: 4.39 ft at 2:00PM Jul 04, 2020Observed: 4.39 ft at 2:15PM Jul 04, 2020Observed: 4.39 ft at 2:30PM Jul 04, 2020Observed: 4.39 ft at 2:45PM Jul 04, 2020Observed: 4.39 ft at 3:00PM Jul 04, 2020Observed: 4.39 ft at 3:15PM Jul 04, 2020Observed: 4.39 ft at 3:30PM Jul 04, 2020Observed: 4.39 ft at 3:45PM Jul 04, 2020Observed: 4.39 ft at 4:00PM Jul 04, 2020Observed: 4.39 ft at 4:15PM Jul 04, 2020Observed: 4.39 ft at 4:30PM Jul 04, 2020Observed: 4.39 ft at 4:45PM Jul 04, 2020Observed: 4.39 ft at 5:00PM Jul 04, 2020Observed: 4.39 ft at 5:15PM Jul 04, 2020Observed: 4.39 ft at 5:30PM Jul 04, 2020Observed: 4.39 ft at 5:45PM Jul 04, 2020Observed: 4.39 ft at 6:00PM Jul 04, 2020Observed: 4.39 ft at 6:15PM Jul 04, 2020Observed: 4.39 ft at 6:30PM Jul 04, 2020Observed: 4.39 ft at 6:45PM Jul 04, 2020Observed: 4.39 ft at 7:00PM Jul 04, 2020Observed: 4.39 ft at 7:15PM Jul 04, 2020Observed: 4.39 ft at 7:30PM Jul 04, 2020Observed: 4.39 ft at 7:45PM Jul 04, 2020Observed: 4.39 ft at 8:00PM Jul 04, 2020Observed: 4.39 ft at 8:15PM Jul 04, 2020Observed: 4.39 ft at 8:30PM Jul 04, 2020Observed: 4.39 ft at 8:45PM Jul 04, 2020Observed: 4.39 ft at 9:00PM Jul 04, 2020Observed: 4.39 ft at 9:15PM Jul 04, 2020Observed: 4.39 ft at 9:30PM Jul 04, 2020Observed: 4.39 ft at 9:45PM Jul 04, 2020Observed: 4.39 ft at 10:00PM Jul 04, 2020Observed: 4.39 ft at 10:15PM Jul 04, 2020Observed: 4.39 ft at 10:30PM Jul 04, 2020Observed: 4.39 ft at 10:45PM Jul 04, 2020Observed: 4.39 ft at 11:00PM Jul 04, 2020Observed: 4.39 ft at 11:15PM Jul 04, 2020Observed: 4.39 ft at 11:30PM Jul 04, 2020Observed: 4.39 ft at 11:45PM Jul 04, 2020Observed: 4.39 ft at 12:00AM Jul 05, 2020Observed: 4.39 ft at 12:15AM Jul 05, 2020Observed: 4.39 ft at 12:30AM Jul 05, 2020Observed: 4.39 ft at 12:45AM Jul 05, 2020Observed: 4.39 ft at 1:00AM Jul 05, 2020Observed: 4.39 ft at 1:15AM Jul 05, 2020Observed: 4.39 ft at 1:30AM Jul 05, 2020Observed: 4.39 ft at 1:45AM Jul 05, 2020Observed: 4.39 ft at 2:00AM Jul 05, 2020Observed: 4.39 ft at 2:15AM Jul 05, 2020Observed: 4.39 ft at 2:30AM Jul 05, 2020Observed: 4.39 ft at 2:45AM Jul 05, 2020Observed: 4.39 ft at 3:00AM Jul 05, 2020Observed: 4.39 ft at 3:15AM Jul 05, 2020Observed: 4.39 ft at 3:30AM Jul 05, 2020Observed: 4.39 ft at 3:45AM Jul 05, 2020Highest Forecast: 4.4 ft 8:00AM Jul 05, 2020Highest Forecast: 4.4 ft 2:00PM Jul 05, 2020Highest Forecast: 4.4 ft 8:00PM Jul 05, 2020Highest Forecast: 4.4 ft 2:00AM Jul 06, 2020Highest Forecast: 4.4 ft 8:00AM Jul 06, 2020Highest Forecast: 4.4 ft 2:00PM Jul 06, 2020Highest Forecast: 4.4 ft 8:00PM Jul 06, 2020Highest Forecast: 4.4 ft 2:00AM Jul 07, 2020Highest Forecast: 4.4 ft 8:00AM Jul 07, 2020WLLN6(plotting HGIRG) Graph Created (4:16AM Jul 5, 2020)ObservedForecast (issued 11:27AM Jul 4)Latest observed value: 4.39 ft at 3:45 AM EDT 5-Jul-2020. 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
Ask Questions/Webmaster
Page last modified: 1-Mar-2019 12:35 AM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities