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    1. <mark id="8i82i"><u id="8i82i"><span id="8i82i"></span></u></mark>


      Chemung River at Chemung, NY (CMGN6)


      Data Type




      Inundation Levels
      NAVD88 Stage

      Record Crest: 31.62 ft
      809.731.6
      809.131.0
      808.130.0
      807.129.0
      806.128.0
      805.127.0
      804.126.0
      803.125.0

      Major Flooding Begins

      802.124.0
      801.123.0
      800.122.0
      799.121.0

      Moderate Flooding Begins

      798.120.0
      797.018.9
      796.118.0
      795.117.0

      Minor Flooding Begins

      794.116.0
      793.115.0
      792.114.0
      791.113.0

      Near Flooding Begins

      790.112.0

      Below Flooding Begins

      * = Extended rating
      Weather Forecast Office Binghamton, NY Middle Atlantic River Forecast Center
      Hydrograph River at a Glance Download Inundation
      Mapping
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      Click on mapped inundation to see water depth values for that location, or hold shift and drag to zoom to area.

      Current Stage:
      6.2 ft at 12/12/2019 19:00:00 UTC
      Selected Inundation
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      North Arrow

      Inundation Legend
      Depth in feet
      USGS Gauge Location Gauge Location
      What is UTC time? Map Help

      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.

      Gauge Information Collapse

      Map Overlays

      Flood Categories (in feet)
      Major Flood Stage: 24
      Moderate Flood Stage: 20
      Flood Stage: 16
      Action Stage: 12
      Low Stage (in feet): -9999

      Historic Crests
      (1) 31.62 ft on 06/23/1972
      (2) 24.10 ft on 09/27/1975
      (3) 23.97 ft on 05/28/1946
      (4) 20.44 ft on 03/06/1964
      (5) 20.13 ft on 10/15/1955
      Show More Historic Crests

      (P): Preliminary values subject to further review.

      Recent Crests
      (1) 16.63 ft on 03/15/2007
      (2) 17.40 ft on 04/03/2005
      (3) 18.45 ft on 09/18/2004
      (4) 16.05 ft on 09/10/2004
      (5) 18.52 ft on 11/09/1996
      Show More Recent Crests

      (P): Preliminary values subject to further review.

      Low Water Records
      Currently none available.

      Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

      Site-specific information:

      The purpose of a flood forecast inundation map is to communicate flood risk based on best available information at the time of map development. This flood forecast inundation map has been compiled using the best information available and is believed to be accurate; however, its preparation required many assumptions. Actual conditions during a flood event may vary from those modeled in the map, including erosion and sedimentation. The limits of flooding shown should only be used as a guideline for emergency planning and response actions. Actual areas inundated will depend on specific flooding conditions.

      The risk of flooding behind flood risk management (FRM) structures (such as levees, floodwalls, closures, etc.) depends on many factors that cannot be entirely predicted in advance. These factors include whether the FRM structure overtops, length of time the structure overtops, and whether the overtopping leads to breach formation.

      The mapping is based on ground elevation data from: FEMA Chemung Watershed 2011; PASDA North 2008; County Chemung Watershed 2005; and County Chemung Watershed 2002

      Flood Risk Management Structures (red lines) – Shows levee and floodwall systems that reduce the flood risk.? The area behind the FRM structures is not shown as being flooded until the structure is over-topped.

      Flood Risk Management Risk Area (yellow shaded area) - Shows the area with flood risk reduced by the flood risk management structures

      Note:? Dams upstream in the Tioga River Watershed provide some flood mitigation.? Inundation maps would not be representative in the case of a dam breach.???

      Note: ? Depths shown are only accurate for the land/overbank areas and not within the stream channel itself.

      Note: Map layers represent the inundation of the lowest elevation of intersecting road surfaces. Elevated roadways may remain free of inundation.

      If you have questions related to the flood risk management/levee projects within NYS contact the NYSDEC Bureau of Flood Protection and Dam Safety at (518) 402-8185.

      The National Levee Database can be accessed here.

      Flood Impacts Collapse
      If you notice any errors in the below information, please contact our Webmaster
      25.8 Water reaches the underside of the bridge on Route 427.
      24 Major road and railroad damages occur due to backwater and flooding. In the past there has been 2 feet of water in the business section of Wellsburg.
      23 Major flooding begins.
      20 Moderate flooding begins. The bridges at Wellsburg and Wilawanna are closed.
      16 Flood stage where minor flooding begins. Water reaches Route 427 upstream of the Chemung river gage.
      Other Data Sources Collapse
      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
      3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
      SREF 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.

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      Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.