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Hydrograph River at a Glance Download
Genesee River at Avon Stage (ft)Flow (kcfs)Observed: 27.94 ft at 11:30PM Mar 18, 2023Observed: 27.94 ft at 11:45PM Mar 18, 2023Observed: 27.95 ft at 12:00AM Mar 19, 2023Observed: 27.95 ft at 12:15AM Mar 19, 2023Observed: 27.95 ft at 12:30AM Mar 19, 2023Observed: 27.96 ft at 12:45AM Mar 19, 2023Observed: 27.96 ft at 1:00AM Mar 19, 2023Observed: 27.96 ft at 1:15AM Mar 19, 2023Observed: 27.96 ft at 1:30AM Mar 19, 2023Observed: 27.96 ft at 1:45AM Mar 19, 2023Observed: 27.96 ft at 2:00AM Mar 19, 2023Observed: 27.96 ft at 2:15AM Mar 19, 2023Highest Observation: 27.97 ft at 2:30AM Mar 19, 2023Highest Observation: 27.97 ft at 2:45AM Mar 19, 2023Highest Observation: 27.97 ft at 3:00AM Mar 19, 2023Highest Observation: 27.97 ft at 3:15AM Mar 19, 2023Highest Observation: 27.97 ft at 3:30AM Mar 19, 2023Highest Observation: 27.97 ft at 3:45AM Mar 19, 2023Highest Observation: 27.97 ft at 4:00AM Mar 19, 2023Highest Observation: 27.97 ft at 4:15AM Mar 19, 2023Highest Observation: 27.97 ft at 4:30AM Mar 19, 2023Highest Observation: 27.97 ft at 4:45AM Mar 19, 2023Highest Observation: 27.97 ft at 5:00AM Mar 19, 2023Highest Observation: 27.97 ft at 5:15AM Mar 19, 2023Highest Observation: 27.97 ft at 5:30AM Mar 19, 2023Highest Observation: 27.97 ft at 5:45AM Mar 19, 2023Observed: 27.96 ft at 6:00AM Mar 19, 2023Observed: 27.96 ft at 6:15AM Mar 19, 2023Observed: 27.96 ft at 6:30AM Mar 19, 2023Observed: 27.96 ft at 6:45AM Mar 19, 2023Observed: 27.96 ft at 7:00AM Mar 19, 2023Observed: 27.95 ft at 7:15AM Mar 19, 2023Observed: 27.95 ft at 7:30AM Mar 19, 2023Observed: 27.95 ft at 7:45AM Mar 19, 2023Observed: 27.94 ft at 8:00AM Mar 19, 2023Observed: 27.93 ft at 8:15AM Mar 19, 2023Observed: 27.93 ft at 8:30AM Mar 19, 2023Observed: 27.92 ft at 8:45AM Mar 19, 2023Observed: 27.92 ft at 9:00AM Mar 19, 2023Observed: 27.92 ft at 9:15AM Mar 19, 2023Observed: 27.91 ft at 9:30AM Mar 19, 2023Observed: 27.91 ft at 9:45AM Mar 19, 2023Observed: 27.9 ft at 10:00AM Mar 19, 2023Observed: 27.89 ft at 10:15AM Mar 19, 2023Observed: 27.89 ft at 10:30AM Mar 19, 2023Observed: 27.88 ft at 10:45AM Mar 19, 2023Observed: 27.88 ft at 11:00AM Mar 19, 2023Observed: 27.87 ft at 11:15AM Mar 19, 2023Observed: 27.87 ft at 11:30AM Mar 19, 2023Observed: 27.85 ft at 11:45AM Mar 19, 2023Observed: 27.85 ft at 12:00PM Mar 19, 2023Observed: 27.84 ft at 12:15PM Mar 19, 2023Observed: 27.84 ft at 12:30PM Mar 19, 2023Observed: 27.83 ft at 12:45PM Mar 19, 2023Observed: 27.83 ft at 1:00PM Mar 19, 2023Observed: 27.81 ft at 1:15PM Mar 19, 2023Observed: 27.81 ft at 1:30PM Mar 19, 2023Observed: 27.8 ft at 1:45PM Mar 19, 2023Observed: 27.8 ft at 2:00PM Mar 19, 2023Observed: 27.8 ft at 2:01PM Mar 19, 2023Observed: 27.79 ft at 2:15PM Mar 19, 2023Observed: 27.78 ft at 2:30PM Mar 19, 2023Observed: 27.78 ft at 2:45PM Mar 19, 2023Observed: 27.77 ft at 3:00PM Mar 19, 2023Observed: 27.76 ft at 3:15PM Mar 19, 2023Observed: 27.76 ft at 3:30PM Mar 19, 2023Observed: 27.76 ft at 3:45PM Mar 19, 2023Observed: 27.75 ft at 4:00PM Mar 19, 2023Observed: 27.74 ft at 4:15PM Mar 19, 2023Observed: 27.73 ft at 4:30PM Mar 19, 2023Observed: 27.73 ft at 4:45PM Mar 19, 2023Observed: 27.72 ft at 5:00PM Mar 19, 2023Observed: 27.71 ft at 5:15PM Mar 19, 2023Observed: 27.7 ft at 5:30PM Mar 19, 2023Observed: 27.69 ft at 5:45PM Mar 19, 2023Observed: 27.69 ft at 6:00PM Mar 19, 2023Observed: 27.68 ft at 6:15PM Mar 19, 2023Observed: 27.67 ft at 6:30PM Mar 19, 2023Observed: 27.67 ft at 6:45PM Mar 19, 2023Observed: 27.66 ft at 7:00PM Mar 19, 2023Observed: 27.65 ft at 7:15PM Mar 19, 2023Observed: 27.64 ft at 7:30PM Mar 19, 2023Observed: 27.64 ft at 7:45PM Mar 19, 2023Observed: 27.63 ft at 8:00PM Mar 19, 2023Observed: 27.62 ft at 8:15PM Mar 19, 2023Observed: 27.61 ft at 8:30PM Mar 19, 2023Observed: 27.6 ft at 8:45PM Mar 19, 2023Observed: 27.6 ft at 9:00PM Mar 19, 2023Observed: 27.59 ft at 9:15PM Mar 19, 2023Observed: 27.57 ft at 9:30PM Mar 19, 2023Observed: 27.56 ft at 9:45PM Mar 19, 2023Observed: 27.56 ft at 10:00PM Mar 19, 2023Observed: 27.55 ft at 10:15PM Mar 19, 2023Observed: 27.54 ft at 10:30PM Mar 19, 2023Observed: 27.53 ft at 10:45PM Mar 19, 2023Observed: 27.52 ft at 11:00PM Mar 19, 2023Observed: 27.52 ft at 11:15PM Mar 19, 2023Observed: 27.51 ft at 11:30PM Mar 19, 2023Observed: 27.5 ft at 11:45PM Mar 19, 2023Observed: 27.49 ft at 12:00AM Mar 20, 2023Observed: 27.48 ft at 12:15AM Mar 20, 2023Observed: 27.47 ft at 12:30AM Mar 20, 2023Observed: 27.47 ft at 12:45AM Mar 20, 2023Observed: 27.46 ft at 1:00AM Mar 20, 2023Observed: 27.45 ft at 1:15AM Mar 20, 2023Observed: 27.44 ft at 1:30AM Mar 20, 2023Observed: 27.43 ft at 1:45AM Mar 20, 2023Observed: 27.43 ft at 2:00AM Mar 20, 2023Observed: 27.41 ft at 2:15AM Mar 20, 2023Observed: 27.4 ft at 2:30AM Mar 20, 2023Observed: 27.39 ft at 2:45AM Mar 20, 2023Observed: 27.38 ft at 3:00AM Mar 20, 2023Observed: 27.37 ft at 3:15AM Mar 20, 2023Observed: 27.36 ft at 3:30AM Mar 20, 2023Observed: 27.35 ft at 3:45AM Mar 20, 2023Observed: 27.35 ft at 4:00AM Mar 20, 2023Observed: 27.33 ft at 4:15AM Mar 20, 2023Observed: 27.32 ft at 4:30AM Mar 20, 2023Observed: 27.32 ft at 4:45AM Mar 20, 2023Observed: 27.31 ft at 5:00AM Mar 20, 2023Observed: 27.29 ft at 5:15AM Mar 20, 2023Observed: 27.28 ft at 5:30AM Mar 20, 2023Observed: 27.28 ft at 5:45AM Mar 20, 2023Observed: 27.27 ft at 6:00AM Mar 20, 2023Observed: 27.25 ft at 6:15AM Mar 20, 2023Observed: 27.24 ft at 6:30AM Mar 20, 2023Observed: 27.24 ft at 6:45AM Mar 20, 2023Observed: 27.23 ft at 7:00AM Mar 20, 2023Observed: 27.22 ft at 7:15AM Mar 20, 2023Observed: 27.21 ft at 7:30AM Mar 20, 2023Observed: 27.2 ft at 7:45AM Mar 20, 2023Observed: 27.19 ft at 8:00AM Mar 20, 2023Observed: 27.17 ft at 8:15AM Mar 20, 2023Observed: 27.16 ft at 8:30AM Mar 20, 2023Observed: 27.15 ft at 8:45AM Mar 20, 2023Observed: 27.13 ft at 9:00AM Mar 20, 2023Observed: 27.12 ft at 9:15AM Mar 20, 2023Observed: 27.11 ft at 9:30AM Mar 20, 2023Observed: 27.09 ft at 9:45AM Mar 20, 2023Observed: 27.09 ft at 10:00AM Mar 20, 2023Observed: 27.08 ft at 10:15AM Mar 20, 2023Observed: 27.07 ft at 10:30AM Mar 20, 2023Observed: 27.05 ft at 10:45AM Mar 20, 2023Observed: 27.04 ft at 11:00AM Mar 20, 2023Observed: 27.03 ft at 11:15AM Mar 20, 2023Observed: 27.02 ft at 11:30AM Mar 20, 2023Observed: 27.01 ft at 11:45AM Mar 20, 2023Observed: 27 ft at 12:00PM Mar 20, 2023Observed: 26.99 ft at 12:15PM Mar 20, 2023Observed: 26.98 ft at 12:30PM Mar 20, 2023Observed: 26.97 ft at 12:45PM Mar 20, 2023Observed: 26.96 ft at 1:00PM Mar 20, 2023Observed: 26.95 ft at 1:15PM Mar 20, 2023Observed: 26.94 ft at 1:30PM Mar 20, 2023Observed: 26.93 ft at 1:45PM Mar 20, 2023Observed: 26.92 ft at 2:00PM Mar 20, 2023Observed: 26.92 ft at 2:01PM Mar 20, 2023Observed: 26.92 ft at 2:15PM Mar 20, 2023Observed: 26.91 ft at 2:30PM Mar 20, 2023Observed: 26.91 ft at 2:45PM Mar 20, 2023Observed: 26.9 ft at 3:00PM Mar 20, 2023Observed: 26.89 ft at 3:15PM Mar 20, 2023Observed: 26.89 ft at 3:30PM Mar 20, 2023Observed: 26.88 ft at 3:45PM Mar 20, 2023Observed: 26.88 ft at 4:00PM Mar 20, 2023Observed: 26.88 ft at 4:15PM Mar 20, 2023Observed: 26.88 ft at 4:30PM Mar 20, 2023Observed: 26.88 ft at 4:45PM Mar 20, 2023Observed: 26.88 ft at 5:00PM Mar 20, 2023Observed: 26.88 ft at 5:15PM Mar 20, 2023Observed: 26.88 ft at 5:30PM Mar 20, 2023Observed: 26.87 ft at 5:45PM Mar 20, 2023Observed: 26.87 ft at 6:00PM Mar 20, 2023Observed: 26.87 ft at 6:15PM Mar 20, 2023Observed: 26.85 ft at 6:30PM Mar 20, 2023Observed: 26.85 ft at 6:45PM Mar 20, 2023Observed: 26.84 ft at 7:00PM Mar 20, 2023Observed: 26.83 ft at 7:15PM Mar 20, 2023Observed: 26.83 ft at 7:30PM Mar 20, 2023Observed: 26.82 ft at 7:45PM Mar 20, 2023Observed: 26.81 ft at 8:00PM Mar 20, 2023Observed: 26.81 ft at 8:15PM Mar 20, 2023Observed: 26.81 ft at 8:30PM Mar 20, 2023Observed: 26.8 ft at 8:45PM Mar 20, 2023Observed: 26.8 ft at 9:00PM Mar 20, 2023Observed: 26.8 ft at 9:15PM Mar 20, 2023Observed: 26.81 ft at 9:30PM Mar 20, 2023Observed: 26.81 ft at 9:45PM Mar 20, 2023Observed: 26.81 ft at 10:00PM Mar 20, 2023Observed: 26.81 ft at 10:15PM Mar 20, 2023Observed: 26.82 ft at 10:30PM Mar 20, 2023Observed: 26.83 ft at 10:45PM Mar 20, 2023Observed: 26.84 ft at 11:00PM Mar 20, 2023Observed: 26.85 ft at 11:15PM Mar 20, 2023Observed: 26.86 ft at 11:30PM Mar 20, 2023Observed: 26.87 ft at 11:45PM Mar 20, 2023Observed: 26.88 ft at 12:00AM Mar 21, 2023Observed: 26.89 ft at 12:15AM Mar 21, 2023Observed: 26.91 ft at 12:30AM Mar 21, 2023Observed: 26.92 ft at 12:45AM Mar 21, 2023Observed: 26.93 ft at 1:00AM Mar 21, 2023Observed: 26.95 ft at 1:15AM Mar 21, 2023Observed: 26.96 ft at 1:30AM Mar 21, 2023Observed: 26.98 ft at 1:45AM Mar 21, 2023Observed: 26.99 ft at 2:00AM Mar 21, 2023Observed: 26.99 ft at 2:01AM Mar 21, 2023Observed: 27 ft at 2:15AM Mar 21, 2023Observed: 27.02 ft at 2:30AM Mar 21, 2023Observed: 27.03 ft at 2:45AM Mar 21, 2023Observed: 27.04 ft at 3:00AM Mar 21, 2023Observed: 27.06 ft at 3:15AM Mar 21, 2023Observed: 27.08 ft at 3:30AM Mar 21, 2023Observed: 27.09 ft at 3:45AM Mar 21, 2023Observed: 27.11 ft at 4:00AM Mar 21, 2023Observed: 27.12 ft at 4:15AM Mar 21, 2023Observed: 27.14 ft at 4:30AM Mar 21, 2023Observed: 27.15 ft at 4:45AM Mar 21, 2023Observed: 27.16 ft at 5:00AM Mar 21, 2023Observed: 27.18 ft at 5:15AM Mar 21, 2023Observed: 27.2 ft at 5:30AM Mar 21, 2023Observed: 27.21 ft at 5:45AM Mar 21, 2023Observed: 27.22 ft at 6:00AM Mar 21, 2023Observed: 27.23 ft at 6:15AM Mar 21, 2023Observed: 27.24 ft at 6:30AM Mar 21, 2023Observed: 27.25 ft at 6:45AM Mar 21, 2023Observed: 27.28 ft at 7:00AM Mar 21, 2023Observed: 27.28 ft at 7:15AM Mar 21, 2023Observed: 27.29 ft at 7:30AM Mar 21, 2023Observed: 27.31 ft at 7:45AM Mar 21, 2023Observed: 27.32 ft at 8:00AM Mar 21, 2023Observed: 27.33 ft at 8:15AM Mar 21, 2023Observed: 27.35 ft at 8:30AM Mar 21, 2023Observed: 27.36 ft at 8:45AM Mar 21, 2023Observed: 27.37 ft at 9:00AM Mar 21, 2023Observed: 27.37 ft at 9:15AM Mar 21, 2023Observed: 27.39 ft at 9:30AM Mar 21, 2023Observed: 27.4 ft at 9:45AM Mar 21, 2023Observed: 27.4 ft at 10:00AM Mar 21, 2023Observed: 27.41 ft at 10:15AM Mar 21, 2023Observed: 27.42 ft at 10:30AM Mar 21, 2023Observed: 27.43 ft at 10:45AM Mar 21, 2023Observed: 27.44 ft at 11:00AM Mar 21, 2023Observed: 27.44 ft at 11:15AM Mar 21, 2023Observed: 27.45 ft at 11:30AM Mar 21, 2023Observed: 27.46 ft at 11:45AM Mar 21, 2023Observed: 27.47 ft at 12:00PM Mar 21, 2023Observed: 27.47 ft at 12:15PM Mar 21, 2023Observed: 27.48 ft at 12:30PM Mar 21, 2023Observed: 27.48 ft at 12:45PM Mar 21, 2023Observed: 27.49 ft at 1:00PM Mar 21, 2023Observed: 27.49 ft at 1:15PM Mar 21, 2023Observed: 27.5 ft at 1:30PM Mar 21, 2023Observed: 27.5 ft at 1:45PM Mar 21, 2023Observed: 27.51 ft at 2:00PM Mar 21, 2023Observed: 27.52 ft at 2:15PM Mar 21, 2023Observed: 27.52 ft at 2:30PM Mar 21, 2023Observed: 27.52 ft at 2:45PM Mar 21, 2023Observed: 27.52 ft at 3:00PM Mar 21, 2023Observed: 27.53 ft at 3:15PM Mar 21, 2023Observed: 27.53 ft at 3:30PM Mar 21, 2023Observed: 27.53 ft at 3:45PM Mar 21, 2023Observed: 27.54 ft at 4:00PM Mar 21, 2023Observed: 27.54 ft at 4:15PM Mar 21, 2023Observed: 27.54 ft at 4:30PM Mar 21, 2023Observed: 27.55 ft at 4:45PM Mar 21, 2023Observed: 27.55 ft at 5:00PM Mar 21, 2023Observed: 27.55 ft at 5:15PM Mar 21, 2023Observed: 27.55 ft at 5:30PM Mar 21, 2023Observed: 27.55 ft at 5:45PM Mar 21, 2023Observed: 27.55 ft at 6:00PM Mar 21, 2023Observed: 27.55 ft at 6:15PM Mar 21, 2023Observed: 27.55 ft at 6:30PM Mar 21, 2023Observed: 27.55 ft at 6:45PM Mar 21, 2023Observed: 27.55 ft at 7:00PM Mar 21, 2023Observed: 27.55 ft at 7:15PM Mar 21, 2023Observed: 27.55 ft at 7:30PM Mar 21, 2023Observed: 27.55 ft at 7:45PM Mar 21, 2023Observed: 27.55 ft at 8:00PM Mar 21, 2023Observed: 27.55 ft at 8:15PM Mar 21, 2023Observed: 27.55 ft at 8:30PM Mar 21, 2023Observed: 27.55 ft at 8:45PM Mar 21, 2023Observed: 27.55 ft at 9:00PM Mar 21, 2023Observed: 27.55 ft at 9:15PM Mar 21, 2023Observed: 27.55 ft at 9:30PM Mar 21, 2023Observed: 27.54 ft at 9:45PM Mar 21, 2023Observed: 27.54 ft at 10:00PM Mar 21, 2023Forecast: 27.8 ft 2:00AM Mar 22, 2023Forecast: 28 ft 8:00AM Mar 22, 2023Forecast: 28.1 ft 2:00PM Mar 22, 2023Forecast: 28.1 ft 8:00PM Mar 22, 2023Forecast: 28.1 ft 2:00AM Mar 23, 2023Forecast: 28.1 ft 8:00AM Mar 23, 2023Forecast: 28.3 ft 2:00PM Mar 23, 2023Forecast: 28.8 ft 8:00PM Mar 23, 2023Forecast: 29.4 ft 2:00AM Mar 24, 2023Highest Forecast: 29.6 ft 8:00AM Mar 24, 2023USGS--Water Resources of the United StatesAVON6(plotting HGIRG) Graph Created (11:16PM Mar 21, 2023)ObservedForecast (issued 11:19AM Mar 21)Latest observed value: 27.54 ft at 10:00 PM EDT 21-Mar-2023. Flood Stage is 33 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Impact statements listed below may not be representative during times of ice jam flooding.

NOTE: Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.

NOTE: Forecasts for the Genesee River at Avon are issued routinely year-round.

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Upstream Gauge - at Mount Morris Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Rochester
Flood Categories (in feet)
Major Flood Stage: 40
Moderate Flood Stage: 37
Flood Stage: 33
Action Stage: 30
Low Stage (in feet): -9999

Historic Crests
(1) 40.67 ft on 06/25/1972
(2) 37.20 ft on 03/07/1956
(3) 36.30 ft on 01/09/1998
(4) 34.59 ft on 04/14/1994
(5) 34.51 ft on 04/07/1957
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 33.41 ft on 02/23/2022
(2) 34.31 ft on 10/30/2021
(3) 33.88 ft on 04/21/2017
(4) 33.40 ft on 04/03/2005
(5) 36.30 ft on 01/09/1998
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 13.70 ft on 10/11/1980
(2) 14.30 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
40 Major flood, widespread flooding of agricultural lands from Geneseo to Scottsville. Some residential and industrial areas threatened.
37 Moderate flood, more widespread flooding of agricultural lands from Geneseo to Scottsville. Residential areas begin to be threatened.
33 Flood stage, river overflows at many areas from Geneseo to Scottsville, but mainly in agricultural lands with little damage to structures.
30 Action stage, high flows, no flooding.
About This Location Collapse

Latitude: 42.917778° N, Longitude: 77.757222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 33 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 499.56 532.56 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 500.11 533.11 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.
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Hydrologic Resources Additional Resources
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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
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Page last modified: 2-Nov-2020 7:30 PM
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