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 Louisville, KY

Ohio River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (CDT) Datum: NAVD88 Metadata

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. NOTE: Forecasts are not available for the Green River (KY) near Mammoth Cave. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Not Available Historic Crests (1) 50.94 ft on 03/03/2021 (P) (2) 48.00 ft on 01/24/1937 (3) 46.50 ft on 01/01/1913 (4) 42.60 ft on 01/01/1935 (5) 39.00 ft on 02/18/1949 (6) 38.00 ft on 01/09/1950 (7) 36.10 ft on 04/16/1948 (P): Preliminary values subject to further review. Recent Crests (1) 50.94 ft on 03/03/2021 (P) (2) 38.00 ft on 01/09/1950 (3) 39.00 ft on 02/18/1949 (4) 36.10 ft on 04/16/1948 (5) 48.00 ft on 01/24/1937 (6) 42.60 ft on 01/01/1935 (7) 46.50 ft on 01/01/1913 (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.

About This Location

Latitude: 37.180000° N, Longitude: 86.112500° W, Horizontal Datum: NAD27 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft Not Available 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 409.35 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 Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Mammoth Cave

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Precipitation/Temperature Archive (KML) Flash Flood Guidance Hydrologic Program Overview Interactive Precipitation Map Interactive Snowfall Map Ohio Basin Water Resources Outlook KY Precipitation Frequencies IN Precipitation Frequencies Inundation Mapping Locations 1-7 Day Ensemble River Forecasts Ohio River Flows and Velocities USGS Waterwatch Toolkit

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Drought Information KY Drought Mitigation and Response Plan Snow Information US Coast Guard Sector Ohio Valley USGS WaterWatch KY USGS WaterWatch IN USACE Louisville District USACE Louisville Daily Lake Report

Collaborative Agencies 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 Louisville Weather Forecast Office 6201 Theiler Lane Louisville, KY 40229 (502) 969-8842 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities