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 Greenville-Spartanburg, SC

Lower Mississippi River Forecast Center

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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: Not Available Metadata

NOTE: Gauge reading affected by reservoir operations. NOTE: Forecasts are not available for the Nantahala River at Nantahala Dam. Only observed stages are available for this point.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 110 Moderate Flood Stage: 105 Flood Stage: 102 Action Stage: 99.5 Low Stage (in feet): -9999 Historic Crests (1) 98.73 ft on 09/22/2004 (2) 94.91 ft on 03/12/2011 (P): Preliminary values subject to further review. Recent Crests (1) 94.91 ft on 03/12/2011 (2) 98.73 ft on 09/22/2004 (P): Preliminary values subject to further review. 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

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2400	A DISCHARGE OF 2400 CFS WILL LIKELY CAUSE FLOODING PROBLEMS DOWNSTREAM OF THE DAM.
720	720 CFS OR HIGHER MAY CAUSE PROBLEMS DOWN STREAM. THE SECTION OF NANTAHALA DAM ROAD THAT FORDS THE RIVER WILL BE CLOSED.
110	MAJOR FLOODING BEGINS. HOMES AND BRIDGES DOWNSTREAM OF THE DAM MAY BE AFFECTED. DANGEROUS FOR WHITEATER RAFTING AND OTHER WATER ENTHUSIASTS.
105	MODERATE FLOODING ALONG SHORELINE AND DOWNSTREAM OF THE DAM. WHITEWATER RAFTING OPERATIONS DEFINITELY IMPACTED.
102	MINOR FLOODING OF DOCKS, WITH POSSIBLE ADVERSE IMPACT ON CANOERS AND WHITEWATER RAFTING OPERATIONS, BEGINS.
100	FULL POOL.
Photos (1) view of Nantahala Dam

About This Location

Latitude: 35.199722° N, Longitude: 83.653056° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 102 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 Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other 2881 ft 2981 ft   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Nantahala Dam

Additional Information

FOR MORE INFORMATION ABOUT THIS LAKE GO TO http://www.nantahalapower.com/lakes/levels/

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Southeast River Forecast Center SERFC Ensemble River Forecasts Lower Mississippi River Forecast Center LMRFC Ensemble River Forecasts Hourly Precipitation Snow Information

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