Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.

Weather Forecast Office Binghamton, NY

Northeast River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EDT) Datum: NGVD29 Metadata

NOTE: Forecasts for the Cayuga Lake at Ithaca are issued routinely year-round.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 385 Moderate Flood Stage: 384 Flood Stage: 383.5 Action Stage: 383 Low Stage (in feet): -9999 Historic Crests Currently none available. Recent Crests Currently none available. Low Water Records Currently none available.

Zoom Level:16 Legend FEMA Layer Gauge Location 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

If you notice any errors in the below information, please contact our Webmaster
386.5	This is the approximate level during the April 1993 record snowmelt flood.
386.3	This is approximately the lake level during the June 1972 Hurricane Agnes major flood.
385	Significant flooding occurs around the lake. This level is approximately the same as the April 1916 and March 1936 floods. Wind waves will cause unusual land erosion and damage docks.
384	Water will affect some properties along the lake shore in the towns of Ulysses, Trumansburg and Lansing. No homes are flooded at this level. Parks near the lake may flood. Wind waves may cause unusual land erosion and damage docks.
383.5	The lake level is high enough to flood normally dry areas along the shoreline and may affect some paths, or roads nearest the shore.

About This Location

Latitude: 42.445833° N, Longitude: 76.512500° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 383.5 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 382.9 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available 383.5 ft Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available 384.9 ft Other vertical datum is 1910 Barge Canal Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Ithaca

Additional Information

Data is provided by the USGS. The vertical datum is in NGVD29. Flood stages are in NGVD29. Flood categories will differ from Cayuga Lake at Mud Lock due to different datum.

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Automated Flood Warning Systems Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information Local Hydrology Information Ensemble River Forecasts Hourly Precipitation

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