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Hydrograph River at a Glance Download Inundation
Mapping
Susquehanna River at Unadilla Stage (ft)Flow (kcfs)Observed: 3.64 ft at 6:00PM May 21, 2022Observed: 3.64 ft at 6:15PM May 21, 2022Observed: 3.64 ft at 6:30PM May 21, 2022Observed: 3.64 ft at 6:45PM May 21, 2022Observed: 3.64 ft at 7:00PM May 21, 2022Observed: 3.64 ft at 7:15PM May 21, 2022Observed: 3.64 ft at 7:30PM May 21, 2022Observed: 3.64 ft at 7:45PM May 21, 2022Observed: 3.64 ft at 8:00PM May 21, 2022Observed: 3.64 ft at 8:15PM May 21, 2022Observed: 3.63 ft at 8:30PM May 21, 2022Observed: 3.63 ft at 8:45PM May 21, 2022Observed: 3.63 ft at 9:00PM May 21, 2022Observed: 3.63 ft at 9:15PM May 21, 2022Observed: 3.63 ft at 9:30PM May 21, 2022Observed: 3.63 ft at 9:45PM May 21, 2022Observed: 3.62 ft at 10:00PM May 21, 2022Observed: 3.62 ft at 10:15PM May 21, 2022Observed: 3.62 ft at 10:30PM May 21, 2022Observed: 3.62 ft at 10:45PM May 21, 2022Observed: 3.62 ft at 11:00PM May 21, 2022Observed: 3.62 ft at 11:15PM May 21, 2022Observed: 3.62 ft at 11:30PM May 21, 2022Observed: 3.61 ft at 11:45PM May 21, 2022Observed: 3.61 ft at 12:00AM May 22, 2022Observed: 3.61 ft at 12:15AM May 22, 2022Observed: 3.61 ft at 12:30AM May 22, 2022Observed: 3.61 ft at 12:45AM May 22, 2022Observed: 3.61 ft at 1:00AM May 22, 2022Observed: 3.61 ft at 1:15AM May 22, 2022Observed: 3.61 ft at 1:30AM May 22, 2022Observed: 3.6 ft at 1:45AM May 22, 2022Observed: 3.6 ft at 2:00AM May 22, 2022Observed: 3.6 ft at 2:15AM May 22, 2022Observed: 3.6 ft at 2:30AM May 22, 2022Observed: 3.6 ft at 2:45AM May 22, 2022Observed: 3.6 ft at 3:00AM May 22, 2022Observed: 3.6 ft at 3:15AM May 22, 2022Observed: 3.6 ft at 3:30AM May 22, 2022Observed: 3.59 ft at 3:45AM May 22, 2022Observed: 3.59 ft at 4:00AM May 22, 2022Observed: 3.59 ft at 4:15AM May 22, 2022Observed: 3.59 ft at 4:30AM May 22, 2022Observed: 3.59 ft at 4:45AM May 22, 2022Observed: 3.59 ft at 5:00AM May 22, 2022Observed: 3.59 ft at 5:15AM May 22, 2022Observed: 3.59 ft at 5:30AM May 22, 2022Observed: 3.59 ft at 5:45AM May 22, 2022Observed: 3.58 ft at 6:00AM May 22, 2022Observed: 3.58 ft at 6:15AM May 22, 2022Observed: 3.58 ft at 6:30AM May 22, 2022Observed: 3.58 ft at 6:45AM May 22, 2022Observed: 3.58 ft at 7:00AM May 22, 2022Observed: 3.58 ft at 7:15AM May 22, 2022Observed: 3.58 ft at 7:30AM May 22, 2022Observed: 3.58 ft at 7:45AM May 22, 2022Observed: 3.58 ft at 8:00AM May 22, 2022Observed: 3.57 ft at 8:15AM May 22, 2022Observed: 3.57 ft at 8:30AM May 22, 2022Observed: 3.57 ft at 8:45AM May 22, 2022Observed: 3.57 ft at 9:00AM May 22, 2022Observed: 3.57 ft at 9:15AM May 22, 2022Observed: 3.57 ft at 9:30AM May 22, 2022Observed: 3.57 ft at 9:45AM May 22, 2022Observed: 3.57 ft at 10:00AM May 22, 2022Observed: 3.57 ft at 10:15AM May 22, 2022Observed: 3.57 ft at 10:30AM May 22, 2022Observed: 3.57 ft at 10:45AM May 22, 2022Observed: 3.56 ft at 11:00AM May 22, 2022Observed: 3.56 ft at 11:15AM May 22, 2022Observed: 3.56 ft at 11:30AM May 22, 2022Observed: 3.56 ft at 11:45AM May 22, 2022Observed: 3.56 ft at 12:00PM May 22, 2022Observed: 3.56 ft at 12:15PM May 22, 2022Observed: 3.56 ft at 12:30PM May 22, 2022Observed: 3.56 ft at 12:45PM May 22, 2022Observed: 3.55 ft at 1:00PM May 22, 2022Observed: 3.55 ft at 1:15PM May 22, 2022Observed: 3.55 ft at 1:30PM May 22, 2022Observed: 3.55 ft at 1:45PM May 22, 2022Observed: 3.55 ft at 2:00PM May 22, 2022Observed: 3.55 ft at 2:15PM May 22, 2022Observed: 3.55 ft at 2:16PM May 22, 2022Observed: 3.55 ft at 2:30PM May 22, 2022Observed: 3.55 ft at 2:31PM May 22, 2022Observed: 3.55 ft at 2:45PM May 22, 2022Observed: 3.55 ft at 2:46PM May 22, 2022Observed: 3.54 ft at 3:00PM May 22, 2022Observed: 3.54 ft at 3:01PM May 22, 2022Observed: 3.54 ft at 3:15PM May 22, 2022Observed: 3.54 ft at 3:30PM May 22, 2022Observed: 3.54 ft at 3:45PM May 22, 2022Observed: 3.54 ft at 4:00PM May 22, 2022Observed: 3.55 ft at 4:15PM May 22, 2022Observed: 3.55 ft at 4:30PM May 22, 2022Observed: 3.57 ft at 4:45PM May 22, 2022Observed: 3.57 ft at 5:00PM May 22, 2022Observed: 3.57 ft at 5:15PM May 22, 2022Observed: 3.57 ft at 5:30PM May 22, 2022Observed: 3.56 ft at 5:45PM May 22, 2022Observed: 3.56 ft at 6:00PM May 22, 2022Observed: 3.56 ft at 6:15PM May 22, 2022Observed: 3.55 ft at 6:30PM May 22, 2022Observed: 3.55 ft at 6:45PM May 22, 2022Observed: 3.55 ft at 7:00PM May 22, 2022Observed: 3.55 ft at 7:15PM May 22, 2022Observed: 3.55 ft at 7:30PM May 22, 2022Observed: 3.55 ft at 7:45PM May 22, 2022Observed: 3.54 ft at 8:00PM May 22, 2022Observed: 3.54 ft at 8:15PM May 22, 2022Observed: 3.54 ft at 8:30PM May 22, 2022Observed: 3.54 ft at 8:45PM May 22, 2022Observed: 3.54 ft at 9:00PM May 22, 2022Observed: 3.54 ft at 9:15PM May 22, 2022Observed: 3.54 ft at 9:30PM May 22, 2022Observed: 3.53 ft at 9:45PM May 22, 2022Observed: 3.53 ft at 10:00PM May 22, 2022Observed: 3.53 ft at 10:15PM May 22, 2022Observed: 3.53 ft at 10:30PM May 22, 2022Observed: 3.53 ft at 10:45PM May 22, 2022Observed: 3.53 ft at 11:00PM May 22, 2022Observed: 3.53 ft at 11:15PM May 22, 2022Observed: 3.54 ft at 11:30PM May 22, 2022Observed: 3.54 ft at 11:45PM May 22, 2022Observed: 3.54 ft at 12:00AM May 23, 2022Observed: 3.54 ft at 12:15AM May 23, 2022Observed: 3.54 ft at 12:30AM May 23, 2022Observed: 3.55 ft at 12:45AM May 23, 2022Observed: 3.55 ft at 1:00AM May 23, 2022Observed: 3.55 ft at 1:15AM May 23, 2022Observed: 3.55 ft at 1:30AM May 23, 2022Observed: 3.55 ft at 1:45AM May 23, 2022Observed: 3.55 ft at 2:00AM May 23, 2022Observed: 3.55 ft at 2:15AM May 23, 2022Observed: 3.56 ft at 2:30AM May 23, 2022Observed: 3.56 ft at 2:45AM May 23, 2022Observed: 3.56 ft at 3:00AM May 23, 2022Observed: 3.56 ft at 3:15AM May 23, 2022Observed: 3.56 ft at 3:30AM May 23, 2022Observed: 3.56 ft at 3:45AM May 23, 2022Observed: 3.56 ft at 4:00AM May 23, 2022Observed: 3.56 ft at 4:15AM May 23, 2022Observed: 3.56 ft at 4:30AM May 23, 2022Observed: 3.56 ft at 4:45AM May 23, 2022Observed: 3.56 ft at 5:00AM May 23, 2022Observed: 3.56 ft at 5:15AM May 23, 2022Observed: 3.56 ft at 5:30AM May 23, 2022Observed: 3.56 ft at 5:45AM May 23, 2022Observed: 3.56 ft at 6:00AM May 23, 2022Observed: 3.56 ft at 6:15AM May 23, 2022Observed: 3.56 ft at 6:30AM May 23, 2022Observed: 3.56 ft at 6:45AM May 23, 2022Observed: 3.56 ft at 7:00AM May 23, 2022Observed: 3.56 ft at 7:15AM May 23, 2022Observed: 3.56 ft at 7:30AM May 23, 2022Observed: 3.56 ft at 7:45AM May 23, 2022Observed: 3.55 ft at 8:00AM May 23, 2022Observed: 3.56 ft at 8:15AM May 23, 2022Observed: 3.56 ft at 8:30AM May 23, 2022Observed: 3.56 ft at 8:45AM May 23, 2022Observed: 3.56 ft at 9:00AM May 23, 2022Observed: 3.56 ft at 9:15AM May 23, 2022Observed: 3.56 ft at 9:30AM May 23, 2022Observed: 3.56 ft at 9:45AM May 23, 2022Observed: 3.56 ft at 10:00AM May 23, 2022Observed: 3.56 ft at 10:15AM May 23, 2022Observed: 3.56 ft at 10:30AM May 23, 2022Observed: 3.56 ft at 10:45AM May 23, 2022Observed: 3.56 ft at 11:00AM May 23, 2022Observed: 3.57 ft at 11:15AM May 23, 2022Observed: 3.56 ft at 11:30AM May 23, 2022Observed: 3.57 ft at 11:45AM May 23, 2022Observed: 3.57 ft at 12:00PM May 23, 2022Observed: 3.57 ft at 12:15PM May 23, 2022Observed: 3.58 ft at 12:30PM May 23, 2022Observed: 3.58 ft at 12:45PM May 23, 2022Observed: 3.59 ft at 1:00PM May 23, 2022Observed: 3.6 ft at 1:15PM May 23, 2022Observed: 3.6 ft at 1:30PM May 23, 2022Observed: 3.6 ft at 1:45PM May 23, 2022Observed: 3.61 ft at 2:00PM May 23, 2022Observed: 3.62 ft at 2:15PM May 23, 2022Observed: 3.62 ft at 2:16PM May 23, 2022Observed: 3.62 ft at 2:30PM May 23, 2022Observed: 3.62 ft at 2:31PM May 23, 2022Observed: 3.63 ft at 2:45PM May 23, 2022Observed: 3.63 ft at 2:46PM May 23, 2022Observed: 3.64 ft at 3:00PM May 23, 2022Observed: 3.64 ft at 3:01PM May 23, 2022Observed: 3.64 ft at 3:15PM May 23, 2022Observed: 3.65 ft at 3:30PM May 23, 2022Observed: 3.66 ft at 3:45PM May 23, 2022Observed: 3.66 ft at 4:00PM May 23, 2022Observed: 3.66 ft at 4:15PM May 23, 2022Observed: 3.67 ft at 4:30PM May 23, 2022Observed: 3.67 ft at 4:45PM May 23, 2022Highest Observation: 3.68 ft at 5:00PM May 23, 2022Highest Forecast: 3.6 ft 8:00PM May 23, 2022Highest Forecast: 3.6 ft 2:00AM May 24, 2022Forecast: 3.5 ft 8:00AM May 24, 2022Forecast: 3.5 ft 2:00PM May 24, 2022Forecast: 3.5 ft 8:00PM May 24, 2022Forecast: 3.5 ft 2:00AM May 25, 2022Forecast: 3.4 ft 8:00AM May 25, 2022Forecast: 3.4 ft 2:00PM May 25, 2022Forecast: 3.4 ft 8:00PM May 25, 2022Forecast: 3.3 ft 2:00AM May 26, 2022Forecast: 3.3 ft 8:00AM May 26, 2022USGS--Water Resources of the United StatesUNDN6(plotting HGIRG) Graph Created (5:45PM May 23, 2022)ObservedForecast (issued 9:35AM May 23)Latest observed value: 3.68 ft at 5:00 PM EDT 23-May-2022. Flood Stage is 11 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Susquehanna River at Unadilla are issued routinely year-round.

Vertical datum height surveyed by the USGS

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Downstream Gauge Downstream Gauge - at Sidney
Flood Categories (in feet)
Major Flood Stage: 14.5
Moderate Flood Stage: 13
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 17.72 ft on 06/29/2006
(2) 16.60 ft on 03/18/1936
(3) 16.34 ft on 09/09/2011
(4) 16.00 ft on 07/08/1935
(5) 14.64 ft on 03/14/1977
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.57 ft on 04/07/2017
(2) 16.34 ft on 09/09/2011
(3) 11.34 ft on 04/29/2011
(4) 11.07 ft on 10/02/2010
(5) 11.29 ft on 03/24/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:14
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
17.7 This was the record flood of June 2006. Deep flooding was widespread and severe throughout Unadilla.
17 The water treatment building and Grand Street in Sidney are inundated.
16.3 Widespread severe flooding caused by the September 2011 flood.
16 Severe flooding occurs throughout most of the Village of Unadilla as water spreads toward Railroad Street. Route 7 flooded in many areas.
14.5 Major flood stage. Several locations in Unadilla on the south side of Main Street are flooded. Water crosses Route 7 near Hopkins Street and floods homes to the north.
13 Moderate flood stage. Basement flooding and some first floor dwellings between Main Street and River Road are affected by flooding. This includes properties on Hopkins, Church, Dart and Mill Street.
11 Minor flooding begins to impact fields and some properties in Unadilla between Main Street and River Road.
Photos
(1) looking upstream
(2) view of gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 42.321389° N, Longitude: 75.316944° 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 996.85 ft 1007.85 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 997.25 ft 1008.25 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
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 72 Hours.

Click individual graphics to enlarge.

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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
Binghamton Weather Forecast Office
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(607) 729-1597
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Page last modified: 2-Nov-2020 7:30 PM
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