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 Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, 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 (EST) Datum: NGVD29 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 Northern Ditch near Okolona. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Downstream Gauge

Flood Categories (in feet) Not Available Historic Crests (1) 14.51 ft on 04/03/2015 (2) 13.82 ft on 09/23/2006 (3) 13.19 ft on 06/28/1999 (4) 12.42 ft on 01/03/2000 (5) 12.34 ft on 07/06/1974 (6) 12.09 ft on 03/29/1975 (7) 11.63 ft on 06/23/2011 (8) 11.57 ft on 08/04/2009 (9) 10.88 ft on 04/04/2008 (10) 10.59 ft on 05/19/2005 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 14.51 ft on 04/03/2015 (2) 11.63 ft on 06/23/2011 (3) 11.57 ft on 08/04/2009 (4) 10.88 ft on 04/04/2008 (5) 13.82 ft on 09/23/2006 (6) 10.59 ft on 05/19/2005 (7) 10.54 ft on 09/24/2002 (8) 12.42 ft on 01/03/2000 (9) 13.19 ft on 06/28/1999 (10) 12.09 ft on 03/29/1975 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:13 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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Photos (1) Crest Gage (2) Gage House (3) Looking Downstream from Bridge (4) Looking Upstream from Bridge (5) Wireweight Gage

About This Location

Latitude: 38.150278° N, Longitude: 85.693611° W, Horizontal Datum: NAD83/WGS84 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 447.5 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 Okolona

Additional Information

USGS Water Temperature/Water Quality USGS Average Streamflow

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