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Hydrograph River at a Glance Download
Genesee River at Portageville Stage (ft)Flow (kcfs)Observed: 12.56 ft at 4:30AM Jul 01, 2015Observed: 12.65 ft at 4:45AM Jul 01, 2015Observed: 12.71 ft at 5:00AM Jul 01, 2015Observed: 12.64 ft at 5:15AM Jul 01, 2015Observed: 12.76 ft at 5:30AM Jul 01, 2015Observed: 12.68 ft at 5:45AM Jul 01, 2015Observed: 12.65 ft at 6:00AM Jul 01, 2015Observed: 12.77 ft at 6:15AM Jul 01, 2015Observed: 12.84 ft at 6:30AM Jul 01, 2015Observed: 12.77 ft at 6:45AM Jul 01, 2015Observed: 12.76 ft at 7:00AM Jul 01, 2015Observed: 12.76 ft at 7:15AM Jul 01, 2015Observed: 12.83 ft at 7:30AM Jul 01, 2015Observed: 12.83 ft at 7:45AM Jul 01, 2015Observed: 12.71 ft at 8:00AM Jul 01, 2015Observed: 12.83 ft at 8:15AM Jul 01, 2015Observed: 12.76 ft at 8:30AM Jul 01, 2015Observed: 12.71 ft at 8:45AM Jul 01, 2015Observed: 12.87 ft at 9:00AM Jul 01, 2015Observed: 12.76 ft at 9:15AM Jul 01, 2015Observed: 12.74 ft at 9:30AM Jul 01, 2015Highest Observation: 12.93 ft at 9:45AM Jul 01, 2015Observed: 12.88 ft at 10:00AM Jul 01, 2015Observed: 12.76 ft at 10:15AM Jul 01, 2015Observed: 12.76 ft at 10:30AM Jul 01, 2015Observed: 12.78 ft at 10:45AM Jul 01, 2015Observed: 12.78 ft at 10:47AM Jul 01, 2015Observed: 12.72 ft at 11:00AM Jul 01, 2015Observed: 12.66 ft at 11:15AM Jul 01, 2015Observed: 12.71 ft at 11:30AM Jul 01, 2015Observed: 12.56 ft at 11:45AM Jul 01, 2015Observed: 12.72 ft at 12:00PM Jul 01, 2015Observed: 12.6 ft at 12:15PM Jul 01, 2015Observed: 12.54 ft at 12:30PM Jul 01, 2015Observed: 12.61 ft at 12:45PM Jul 01, 2015Observed: 12.5 ft at 1:00PM Jul 01, 2015Observed: 12.64 ft at 1:15PM Jul 01, 2015Observed: 12.43 ft at 1:30PM Jul 01, 2015Observed: 12.5 ft at 1:45PM Jul 01, 2015Observed: 12.36 ft at 2:00PM Jul 01, 2015Observed: 12.53 ft at 2:15PM Jul 01, 2015Observed: 12.36 ft at 2:30PM Jul 01, 2015Observed: 12.41 ft at 2:45PM Jul 01, 2015Observed: 12.31 ft at 3:00PM Jul 01, 2015Observed: 12.32 ft at 3:15PM Jul 01, 2015Observed: 12.32 ft at 3:30PM Jul 01, 2015Observed: 12.19 ft at 3:45PM Jul 01, 2015Observed: 12.24 ft at 4:00PM Jul 01, 2015Observed: 12.17 ft at 4:15PM Jul 01, 2015Observed: 12.15 ft at 4:30PM Jul 01, 2015Observed: 12.16 ft at 4:45PM Jul 01, 2015Observed: 12.12 ft at 5:00PM Jul 01, 2015Observed: 12.07 ft at 5:15PM Jul 01, 2015Observed: 12.04 ft at 5:30PM Jul 01, 2015Observed: 11.97 ft at 5:45PM Jul 01, 2015Observed: 12.06 ft at 6:00PM Jul 01, 2015Observed: 11.9 ft at 6:15PM Jul 01, 2015Observed: 11.93 ft at 6:30PM Jul 01, 2015Observed: 11.84 ft at 6:45PM Jul 01, 2015Observed: 11.9 ft at 7:00PM Jul 01, 2015Observed: 11.81 ft at 7:15PM Jul 01, 2015Observed: 11.77 ft at 7:30PM Jul 01, 2015Observed: 11.73 ft at 7:45PM Jul 01, 2015Observed: 11.71 ft at 8:00PM Jul 01, 2015Observed: 11.64 ft at 8:15PM Jul 01, 2015Observed: 11.67 ft at 8:30PM Jul 01, 2015Observed: 11.64 ft at 8:45PM Jul 01, 2015Observed: 11.59 ft at 9:00PM Jul 01, 2015Observed: 11.63 ft at 9:15PM Jul 01, 2015Observed: 11.66 ft at 9:30PM Jul 01, 2015Observed: 11.57 ft at 9:45PM Jul 01, 2015Observed: 11.61 ft at 10:00PM Jul 01, 2015Observed: 11.52 ft at 10:15PM Jul 01, 2015Observed: 11.55 ft at 10:30PM Jul 01, 2015Observed: 11.54 ft at 10:45PM Jul 01, 2015Observed: 11.54 ft at 10:46PM Jul 01, 2015Observed: 11.54 ft at 11:00PM Jul 01, 2015Observed: 11.46 ft at 11:15PM Jul 01, 2015Observed: 11.56 ft at 11:30PM Jul 01, 2015Observed: 11.49 ft at 11:45PM Jul 01, 2015Observed: 11.58 ft at 12:00AM Jul 02, 2015Observed: 11.54 ft at 12:15AM Jul 02, 2015Observed: 11.57 ft at 12:30AM Jul 02, 2015Observed: 11.44 ft at 12:45AM Jul 02, 2015Observed: 11.52 ft at 1:00AM Jul 02, 2015Observed: 11.56 ft at 1:15AM Jul 02, 2015Observed: 11.44 ft at 1:30AM Jul 02, 2015Observed: 11.39 ft at 1:45AM Jul 02, 2015Observed: 11.5 ft at 2:00AM Jul 02, 2015Observed: 11.48 ft at 2:15AM Jul 02, 2015Observed: 11.46 ft at 2:30AM Jul 02, 2015Observed: 11.4 ft at 2:45AM Jul 02, 2015Observed: 11.38 ft at 3:00AM Jul 02, 2015Observed: 11.44 ft at 3:15AM Jul 02, 2015Observed: 11.45 ft at 3:30AM Jul 02, 2015Observed: 11.22 ft at 3:45AM Jul 02, 2015Observed: 11.37 ft at 4:00AM Jul 02, 2015Observed: 11.3 ft at 4:15AM Jul 02, 2015Observed: 11.35 ft at 4:30AM Jul 02, 2015Observed: 11.33 ft at 4:45AM Jul 02, 2015Observed: 11.31 ft at 5:00AM Jul 02, 2015Observed: 11.31 ft at 5:15AM Jul 02, 2015Observed: 11.27 ft at 5:30AM Jul 02, 2015Observed: 11.26 ft at 5:45AM Jul 02, 2015Observed: 11.28 ft at 6:00AM Jul 02, 2015Observed: 11.25 ft at 6:15AM Jul 02, 2015Observed: 11.12 ft at 6:30AM Jul 02, 2015Observed: 11.2 ft at 6:45AM Jul 02, 2015Observed: 11.12 ft at 7:00AM Jul 02, 2015Observed: 11.15 ft at 7:15AM Jul 02, 2015Observed: 11.14 ft at 7:30AM Jul 02, 2015Observed: 11.14 ft at 7:45AM Jul 02, 2015Observed: 11.11 ft at 8:00AM Jul 02, 2015Observed: 11.04 ft at 8:15AM Jul 02, 2015Observed: 11.04 ft at 8:30AM Jul 02, 2015Observed: 11.04 ft at 8:45AM Jul 02, 2015Observed: 11 ft at 9:00AM Jul 02, 2015Observed: 11.04 ft at 9:15AM Jul 02, 2015Observed: 10.98 ft at 9:30AM Jul 02, 2015Observed: 11.02 ft at 9:45AM Jul 02, 2015Observed: 11.02 ft at 10:00AM Jul 02, 2015Observed: 10.93 ft at 10:15AM Jul 02, 2015Observed: 10.9 ft at 10:30AM Jul 02, 2015Observed: 10.98 ft at 10:45AM Jul 02, 2015Observed: 10.9 ft at 11:00AM Jul 02, 2015Observed: 10.92 ft at 11:15AM Jul 02, 2015Observed: 10.91 ft at 11:30AM Jul 02, 2015Observed: 10.86 ft at 11:45AM Jul 02, 2015Observed: 10.81 ft at 12:00PM Jul 02, 2015Observed: 10.86 ft at 12:15PM Jul 02, 2015Observed: 10.81 ft at 12:30PM Jul 02, 2015Observed: 10.84 ft at 12:45PM Jul 02, 2015Observed: 10.74 ft at 1:00PM Jul 02, 2015Observed: 10.81 ft at 1:15PM Jul 02, 2015Observed: 10.82 ft at 1:30PM Jul 02, 2015Observed: 10.72 ft at 1:45PM Jul 02, 2015Observed: 10.79 ft at 2:00PM Jul 02, 2015Observed: 10.74 ft at 2:15PM Jul 02, 2015Observed: 10.7 ft at 2:30PM Jul 02, 2015Observed: 10.71 ft at 2:45PM Jul 02, 2015Observed: 10.66 ft at 3:00PM Jul 02, 2015Observed: 10.69 ft at 3:15PM Jul 02, 2015Observed: 10.64 ft at 3:30PM Jul 02, 2015Observed: 10.68 ft at 3:45PM Jul 02, 2015Observed: 10.61 ft at 4:00PM Jul 02, 2015Observed: 10.66 ft at 4:15PM Jul 02, 2015Observed: 10.63 ft at 4:30PM Jul 02, 2015Observed: 10.61 ft at 4:45PM Jul 02, 2015Observed: 10.61 ft at 5:00PM Jul 02, 2015Observed: 10.59 ft at 5:15PM Jul 02, 2015Observed: 10.61 ft at 5:30PM Jul 02, 2015Observed: 10.64 ft at 5:45PM Jul 02, 2015Observed: 10.57 ft at 6:00PM Jul 02, 2015Observed: 10.62 ft at 6:15PM Jul 02, 2015Observed: 10.56 ft at 6:30PM Jul 02, 2015Observed: 10.54 ft at 6:45PM Jul 02, 2015Observed: 10.6 ft at 7:00PM Jul 02, 2015Observed: 10.55 ft at 7:15PM Jul 02, 2015Observed: 10.56 ft at 7:30PM Jul 02, 2015Observed: 10.54 ft at 7:45PM Jul 02, 2015Observed: 10.53 ft at 8:00PM Jul 02, 2015Observed: 10.57 ft at 8:15PM Jul 02, 2015Observed: 10.5 ft at 8:30PM Jul 02, 2015Observed: 10.5 ft at 8:45PM Jul 02, 2015Observed: 10.47 ft at 9:00PM Jul 02, 2015Observed: 10.5 ft at 9:15PM Jul 02, 2015Observed: 10.48 ft at 9:30PM Jul 02, 2015Observed: 10.48 ft at 9:45PM Jul 02, 2015Observed: 10.47 ft at 10:00PM Jul 02, 2015Observed: 10.44 ft at 10:15PM Jul 02, 2015Observed: 10.46 ft at 10:30PM Jul 02, 2015Observed: 10.47 ft at 10:45PM Jul 02, 2015Observed: 10.48 ft at 11:00PM Jul 02, 2015Observed: 10.48 ft at 11:02PM Jul 02, 2015Observed: 10.46 ft at 11:15PM Jul 02, 2015Observed: 10.45 ft at 11:30PM Jul 02, 2015Observed: 10.4 ft at 11:45PM Jul 02, 2015Observed: 10.42 ft at 12:00AM Jul 03, 2015Observed: 10.45 ft at 12:15AM Jul 03, 2015Observed: 10.42 ft at 12:30AM Jul 03, 2015Observed: 10.43 ft at 12:45AM Jul 03, 2015Observed: 10.41 ft at 1:00AM Jul 03, 2015Observed: 10.4 ft at 1:15AM Jul 03, 2015Observed: 10.39 ft at 1:30AM Jul 03, 2015Observed: 10.39 ft at 1:45AM Jul 03, 2015Observed: 10.42 ft at 2:00AM Jul 03, 2015Observed: 10.38 ft at 2:15AM Jul 03, 2015Observed: 10.36 ft at 2:30AM Jul 03, 2015Observed: 10.36 ft at 2:45AM Jul 03, 2015Observed: 10.38 ft at 3:00AM Jul 03, 2015Observed: 10.35 ft at 3:15AM Jul 03, 2015Observed: 10.33 ft at 3:30AM Jul 03, 2015Observed: 10.37 ft at 3:45AM Jul 03, 2015Observed: 10.36 ft at 4:00AM Jul 03, 2015Observed: 10.36 ft at 4:15AM Jul 03, 2015Observed: 10.35 ft at 4:30AM Jul 03, 2015Observed: 10.33 ft at 4:45AM Jul 03, 2015Observed: 10.34 ft at 5:00AM Jul 03, 2015Observed: 10.34 ft at 5:15AM Jul 03, 2015Observed: 10.3 ft at 5:30AM Jul 03, 2015Observed: 10.34 ft at 5:45AM Jul 03, 2015Observed: 10.34 ft at 6:00AM Jul 03, 2015Observed: 10.34 ft at 6:15AM Jul 03, 2015Observed: 10.32 ft at 6:30AM Jul 03, 2015Observed: 10.29 ft at 6:45AM Jul 03, 2015Observed: 10.3 ft at 7:00AM Jul 03, 2015Observed: 10.29 ft at 7:15AM Jul 03, 2015Observed: 10.29 ft at 7:30AM Jul 03, 2015Observed: 10.3 ft at 7:45AM Jul 03, 2015Observed: 10.28 ft at 8:00AM Jul 03, 2015Observed: 10.3 ft at 8:15AM Jul 03, 2015Observed: 10.27 ft at 8:30AM Jul 03, 2015Observed: 10.29 ft at 8:45AM Jul 03, 2015Observed: 10.29 ft at 9:00AM Jul 03, 2015Observed: 10.27 ft at 9:15AM Jul 03, 2015Observed: 10.25 ft at 9:30AM Jul 03, 2015Observed: 10.28 ft at 9:45AM Jul 03, 2015Observed: 10.27 ft at 10:00AM Jul 03, 2015Observed: 10.25 ft at 10:15AM Jul 03, 2015Observed: 10.26 ft at 10:30AM Jul 03, 2015Observed: 10.24 ft at 10:45AM Jul 03, 2015Observed: 10.22 ft at 11:00AM Jul 03, 2015Observed: 10.2 ft at 11:15AM Jul 03, 2015Observed: 10.22 ft at 11:30AM Jul 03, 2015Observed: 10.21 ft at 11:45AM Jul 03, 2015Observed: 10.21 ft at 12:00PM Jul 03, 2015Observed: 10.24 ft at 12:15PM Jul 03, 2015Observed: 10.24 ft at 12:30PM Jul 03, 2015Observed: 10.21 ft at 12:45PM Jul 03, 2015Observed: 10.21 ft at 1:00PM Jul 03, 2015Observed: 10.21 ft at 1:15PM Jul 03, 2015Observed: 10.19 ft at 1:30PM Jul 03, 2015Observed: 10.2 ft at 1:45PM Jul 03, 2015Observed: 10.19 ft at 2:00PM Jul 03, 2015Observed: 10.2 ft at 2:15PM Jul 03, 2015Observed: 10.18 ft at 2:30PM Jul 03, 2015Observed: 10.18 ft at 2:45PM Jul 03, 2015Observed: 10.15 ft at 3:00PM Jul 03, 2015Observed: 10.16 ft at 3:15PM Jul 03, 2015Observed: 10.17 ft at 3:30PM Jul 03, 2015Observed: 10.15 ft at 3:45PM Jul 03, 2015Observed: 10.17 ft at 4:00PM Jul 03, 2015Observed: 10.15 ft at 4:15PM Jul 03, 2015Observed: 10.15 ft at 4:30PM Jul 03, 2015Observed: 10.16 ft at 4:45PM Jul 03, 2015Observed: 10.15 ft at 5:00PM Jul 03, 2015Observed: 10.14 ft at 5:15PM Jul 03, 2015Observed: 10.14 ft at 5:30PM Jul 03, 2015Observed: 10.13 ft at 5:45PM Jul 03, 2015Observed: 10.12 ft at 6:00PM Jul 03, 2015Observed: 10.15 ft at 6:15PM Jul 03, 2015Observed: 10.15 ft at 6:30PM Jul 03, 2015Observed: 10.13 ft at 6:45PM Jul 03, 2015Observed: 10.13 ft at 7:00PM Jul 03, 2015Observed: 10.1 ft at 7:15PM Jul 03, 2015Observed: 10.11 ft at 7:30PM Jul 03, 2015Observed: 10.12 ft at 7:45PM Jul 03, 2015Observed: 10.09 ft at 8:00PM Jul 03, 2015Observed: 10.09 ft at 8:15PM Jul 03, 2015Observed: 10.12 ft at 8:30PM Jul 03, 2015Observed: 10.12 ft at 8:45PM Jul 03, 2015Observed: 10.11 ft at 9:00PM Jul 03, 2015Observed: 10.11 ft at 9:15PM Jul 03, 2015Observed: 10.11 ft at 9:30PM Jul 03, 2015Observed: 10.11 ft at 9:45PM Jul 03, 2015Observed: 10.08 ft at 10:00PM Jul 03, 2015Observed: 10.07 ft at 10:15PM Jul 03, 2015Observed: 10.08 ft at 10:30PM Jul 03, 2015Observed: 10.09 ft at 10:45PM Jul 03, 2015Observed: 10.09 ft at 11:00PM Jul 03, 2015Observed: 10.09 ft at 11:15PM Jul 03, 2015Observed: 10.07 ft at 11:30PM Jul 03, 2015Observed: 10.05 ft at 11:45PM Jul 03, 2015Observed: 10.04 ft at 12:00AM Jul 04, 2015Observed: 10.06 ft at 12:15AM Jul 04, 2015Observed: 10.07 ft at 12:30AM Jul 04, 2015Observed: 10.07 ft at 12:45AM Jul 04, 2015Observed: 10.04 ft at 1:00AM Jul 04, 2015Observed: 10.07 ft at 1:15AM Jul 04, 2015Observed: 10.07 ft at 1:30AM Jul 04, 2015Observed: 10.05 ft at 1:45AM Jul 04, 2015Observed: 10.04 ft at 2:00AM Jul 04, 2015Observed: 10.04 ft at 2:15AM Jul 04, 2015Observed: 10.03 ft at 2:30AM Jul 04, 2015Observed: 10.04 ft at 2:45AM Jul 04, 2015Observed: 10.05 ft at 3:00AM Jul 04, 2015Highest Forecast: 10.1 ft 8:00AM Jul 04, 2015Highest Forecast: 10.1 ft 2:00PM Jul 04, 2015Highest Forecast: 10.1 ft 8:00PM Jul 04, 2015Highest Forecast: 10.1 ft 2:00AM Jul 05, 2015Forecast: 10 ft 8:00AM Jul 05, 2015Forecast: 9.9 ft 2:00PM Jul 05, 2015Forecast: 9.9 ft 8:00PM Jul 05, 2015Forecast: 9.8 ft 2:00AM Jul 06, 2015Forecast: 9.8 ft 8:00AM Jul 06, 2015PRTN6(plotting HGIRG) Graph Created (4:16AM Jul 4, 2015)ObservedForecast (issued 10:57AM Jul 3)Latest observed value: 10.05 ft at 3:00 AM EDT 4-Jul-2015. Flood Stage is 19 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Genesee River at Portageville are issued routinely year-round.
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Upstream Gauge - at Wellsville Upstream Gauge Downstream Gauge Downstream Gauge - at Mount Morris Dam
Flood Categories (in feet)
Major Flood Stage: 29
Moderate Flood Stage: 25
Flood Stage: 19
Action Stage: 17
Low Stage (in feet): 0

Historic Crests
(1) 35.25 ft on 06/23/1972
(2) 29.12 ft on 01/20/1996
(3) 29.12 ft on 07/06/1902
(4) 25.54 ft on 09/29/1967
(5) 24.90 ft on 05/17/1916
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.65 ft on 03/15/2007
(2) 24.19 ft on 01/08/1998
(3) 29.12 ft on 01/20/1996
(4) 21.58 ft on 06/21/1989
(5) 23.48 ft on 06/18/1984
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 8.10 ft on 08/23/1975
(2) 8.20 ft on 09/16/1983
(3) 8.29 ft on 07/16/1999
(4) 8.50 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
29 Major flood, widespread residential, commercial, and agricultural flooding. Heavy damages. Road closures. Possible evacuations.
25 Moderate flood, widespread flooding to agricultural land. Some residential flooding and damages begin. Possible road closures.
19 Flood stage, river begins to overflow into agricultural lands from Belfast to Letchworth. Little damage.
17 Action stage, high flows. No flooding.
About This Location Collapse

Latitude: 42.570278° N, Longitude: 78.042500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 19 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 1080 ft 1099 ft  

Current/Historical Observations:

Additional Information Collapse
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
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Page last modified: 12-Feb-2015 9:34 PM
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