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Hydrograph River at a Glance Download
Onondaga Creek near Nedrow Stage (ft)Flow (kcfs)Forecast: 2.6 ft 1:00PM Dec 02, 2021Forecast: 2.7 ft 7:00PM Dec 02, 2021Highest Forecast: 2.8 ft 1:00AM Dec 03, 2021Highest Forecast: 2.8 ft 7:00AM Dec 03, 2021Highest Forecast: 2.8 ft 1:00PM Dec 03, 2021Highest Forecast: 2.8 ft 7:00PM Dec 03, 2021Forecast: 2.7 ft 1:00AM Dec 04, 2021Forecast: 2.6 ft 7:00AM Dec 04, 2021USGS--Water Resources of the United StatesONDN6(plotting HGIRZ) Graph Created (10:30AM Dec 2, 2021)Forecast (issued 10:48AM Dec 1)Flood Stage is 5 ft
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Tabular Data (UTC)
Tabular Data (EST)
XML Data
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Datum: NGVD29

NOTE: Automatic observations from this river gage have been discontinued due to loss of funding. Contact the USGS at the following link if you can help.  LINK:

NOTE: Gauge reading may be affected by ice.

NOTE: Forecasts for the Onondaga Creek near Nedrow are issued routinely year-round.

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Downstream Gauge Downstream Gauge - at Liverpool
Flood Categories (in feet)
Major Flood Stage: 6
Moderate Flood Stage: 5.5
Flood Stage: 5
Action Stage: 4.5
Low Stage (in feet): -9999

Historic Crests
(1) 6.48 ft on 07/03/1974
(2) 6.26 ft on 10/28/1981
(3) 6.12 ft on 06/23/1972
(4) 5.80 ft on 10/26/2021 (P)
(5) 5.59 ft on 01/19/1996
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(P): Preliminary values subject to further review.

Recent Crests
(1) 5.80 ft on 10/26/2021 (P)
(2) 5.07 ft on 10/16/2021 (P)
(3) 5.21 ft on 03/30/2014
(4) 5.09 ft on 03/14/2007
(5) 5.16 ft on 04/03/2005
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:16
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Gauge LocationGauge Map Marker
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
5 Flood stage - minor flooding begins.
About This Location Collapse

Latitude: 42.983333° N, Longitude: 76.151111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 413.64 ft 418.64 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 414.19 ft 419.19 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
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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
National Weather Service
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32 Dawes Drive
Johnson City, NY 13790
(607) 729-1597
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Page last modified: 2-Nov-2020 7:30 PM
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