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Advanced Hydrologic Prediction Service
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This probabilistic forecast is issued by the Northeast River Forecast Center.
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Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey
About this graph
Forecasts for the Cayuga Lake at Ithaca are issued routinely year-round.
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Zoom Level:16
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.
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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
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.

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
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 datums. 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.

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
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(607) 729-1597
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Page last modified: 6-Nov-2019 2:41 PM
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