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 Memphis, TN

Lower Mississippi 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: Gauge reading affected by reservoir operations. NOTE: Forecasts for the Tennessee River at Johnsonville are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 370 Moderate Flood Stage: 366 Flood Stage: 361.5 Action Stage: 360 Low Stage (in feet): -9999 Historic Crests (1) 372.64 ft on 05/04/2011 (2) 369.50 ft on 03/04/2019 (P) (3) 369.24 ft on 05/08/2010 (4) 364.96 ft on 05/12/2013 (5) 364.40 ft on 05/11/2009 (6) 360.53 ft on 04/30/2014 (7) 358.74 ft on 07/27/2012 (P): Preliminary values subject to further review. Recent Crests (1) 369.50 ft on 03/04/2019 (P) (2) 360.53 ft on 04/30/2014 (3) 364.96 ft on 05/12/2013 (4) 358.74 ft on 07/27/2012 (5) 372.64 ft on 05/04/2011 (6) 369.24 ft on 05/08/2010 (7) 364.40 ft on 05/11/2009 (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:14 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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375	The Battle of Johnsonville Park in the Johnsonville State Historic Park is completely flooded.
370	Flood waters are impacting many areas along the river, including areas near the Cuba Landing Marina, New Johnsonville Harbor Campground and Marina, Pebble Isle Marina, Eagle Bay Marina, and Cane Creek Marina.
368	Most of the parking and camping areas at Mason's Boat Dock are flooded, and portions of the Battle of Johnsonville Park in the Johnsonville State Historic Park begin to be impacted. Water approaches the Cuba Landing Marina parking lot, and most of the boat launch area is inundated.
366	Many access roads along and near the river are impacted, including portions of Clydeton Road, Lakefront Drive, Paint Rock Road, and Turkey Creek Road in Humphreys County, Lower Standing Rock Road, Short Creek Road, Bobcat Trail, and Tanasi Trail in Stewart County.
365	Water begins to impact areas near the Cuba Landing Marina, New Johnsonville Harbor Campground and Marina, Pebble Isle Marina, Eagle Bay Marina, and Cane Creek Marina. The Tennessee National Wildlife Refuge near the Duck River is completely flooded.
364	Water approaches the top of the levee at the Tennessee River Wildlife Refuge near the Duck River.
361.5	Low-lying portions of Old Johnsonville Road near the Battle of Johnsonville Park begin to flood, and water approaches some of the parking areas and campgrounds at Mason's Boat Dock near Waverly.
360	Low-lying and agricultural areas along the river from the Interstate 40 bridge to Land Between the Lakes, including boat launches, access points, and portions of the Tennessee River National Wildlife Refuge near the Duck River begin to inundate.

About This Location

Latitude: 36.017778° N, Longitude: 88.004167° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 299.9 ft 361.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 299.9) Elevation (gauge height = flood stage) Elevation information source NAVD88 299.9 661.4 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 Johnsonville

Additional Information

New flood categories are in effect.

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary US Army Corps of Engineers, Mobile District US Army Corps of Engineers, Mississippi Valley Division US Army Corps of Engineers, Memphis District USGS Water Resources of the United States USGS Daily Steamflow Conditions Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management U.S. Drought Monitor NOAA Drought Information Center Snow Information Tennessee River Stages and Forecasts

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 Memphis Weather Forecast Office 7777 Walnut Grove Rd, Suite 1 Memphis, TN 38120 (901) 544-0399 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities