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Hydrograph River at a Glance Download
Tennessee River at Johnsonville Stage (ft)Observed: 358.21 ft at 11:00PM Apr 14, 2024Observed: 358.25 ft at 12:00AM Apr 15, 2024Observed: 358.25 ft at 1:00AM Apr 15, 2024Observed: 358.25 ft at 2:00AM Apr 15, 2024Observed: 358.26 ft at 3:00AM Apr 15, 2024Highest Observation: 358.28 ft at 4:00AM Apr 15, 2024Highest Observation: 358.28 ft at 5:00AM Apr 15, 2024Highest Observation: 358.28 ft at 6:00AM Apr 15, 2024Observed: 358.26 ft at 7:00AM Apr 15, 2024Observed: 358.24 ft at 8:00AM Apr 15, 2024Observed: 358.22 ft at 9:00AM Apr 15, 2024Observed: 358.21 ft at 10:00AM Apr 15, 2024Observed: 358.21 ft at 11:00AM Apr 15, 2024Observed: 358.19 ft at 12:00PM Apr 15, 2024Observed: 358.19 ft at 1:00PM Apr 15, 2024Observed: 358.17 ft at 2:00PM Apr 15, 2024Observed: 358.15 ft at 3:00PM Apr 15, 2024Observed: 358.14 ft at 4:00PM Apr 15, 2024Observed: 358.16 ft at 5:00PM Apr 15, 2024Observed: 358.19 ft at 6:00PM Apr 15, 2024Observed: 358.21 ft at 7:00PM Apr 15, 2024Observed: 358.23 ft at 8:00PM Apr 15, 2024Observed: 358.24 ft at 9:00PM Apr 15, 2024Observed: 358.24 ft at 10:00PM Apr 15, 2024Observed: 358.25 ft at 11:00PM Apr 15, 2024Observed: 358.27 ft at 12:00AM Apr 16, 2024Observed: 358.26 ft at 1:00AM Apr 16, 2024Observed: 358.25 ft at 2:00AM Apr 16, 2024Observed: 358.26 ft at 3:00AM Apr 16, 2024Observed: 358.27 ft at 4:00AM Apr 16, 2024Highest Observation: 358.28 ft at 5:00AM Apr 16, 2024Observed: 358.26 ft at 6:00AM Apr 16, 2024Observed: 358.25 ft at 7:00AM Apr 16, 2024Observed: 358.26 ft at 8:00AM Apr 16, 2024Observed: 358.26 ft at 9:00AM Apr 16, 2024Observed: 358.25 ft at 10:00AM Apr 16, 2024Observed: 358.22 ft at 11:00AM Apr 16, 2024Observed: 358.19 ft at 12:00PM Apr 16, 2024Observed: 358.17 ft at 1:00PM Apr 16, 2024Observed: 358.14 ft at 2:00PM Apr 16, 2024Observed: 358.09 ft at 3:00PM Apr 16, 2024Observed: 358.06 ft at 4:00PM Apr 16, 2024Observed: 358.06 ft at 5:00PM Apr 16, 2024Observed: 358.07 ft at 6:00PM Apr 16, 2024Observed: 358.04 ft at 7:00PM Apr 16, 2024Observed: 358.04 ft at 8:00PM Apr 16, 2024Observed: 358.02 ft at 9:00PM Apr 16, 2024Observed: 357.98 ft at 10:00PM Apr 16, 2024Observed: 357.99 ft at 11:00PM Apr 16, 2024Observed: 358.01 ft at 12:00AM Apr 17, 2024Observed: 358.01 ft at 1:00AM Apr 17, 2024Observed: 358.04 ft at 2:00AM Apr 17, 2024Observed: 358.05 ft at 3:00AM Apr 17, 2024Observed: 358.09 ft at 4:00AM Apr 17, 2024Observed: 358.04 ft at 5:00AM Apr 17, 2024Observed: 358.03 ft at 6:00AM Apr 17, 2024Observed: 358.02 ft at 7:00AM Apr 17, 2024Observed: 358.01 ft at 8:00AM Apr 17, 2024Observed: 358.01 ft at 9:00AM Apr 17, 2024Observed: 358.02 ft at 10:00AM Apr 17, 2024Observed: 358.03 ft at 11:00AM Apr 17, 2024Observed: 358.06 ft at 12:00PM Apr 17, 2024Observed: 358.07 ft at 1:00PM Apr 17, 2024Observed: 358.09 ft at 2:00PM Apr 17, 2024Observed: 358.1 ft at 3:00PM Apr 17, 2024Observed: 358.13 ft at 4:00PM Apr 17, 2024Observed: 358.14 ft at 5:00PM Apr 17, 2024Observed: 358.15 ft at 6:00PM Apr 17, 2024Observed: 358.15 ft at 7:00PM Apr 17, 2024Observed: 358.13 ft at 8:00PM Apr 17, 2024Observed: 358.13 ft at 9:00PM Apr 17, 2024Forecast: 358.19 ft 12:00AM Apr 18, 2024Forecast: 358.28 ft 6:00AM Apr 18, 2024Forecast: 358.27 ft 12:00PM Apr 18, 2024Forecast: 358.21 ft 6:00PM Apr 18, 2024Forecast: 358.35 ft 12:00AM Apr 19, 2024Forecast: 358.43 ft 6:00AM Apr 19, 2024Forecast: 358.41 ft 12:00PM Apr 19, 2024Forecast: 358.65 ft 6:00PM Apr 19, 2024Forecast: 358.49 ft 12:00AM Apr 20, 2024Forecast: 358.61 ft 6:00AM Apr 20, 2024Forecast: 358.67 ft 12:00PM Apr 20, 2024Forecast: 358.68 ft 6:00PM Apr 20, 2024Forecast: 358.58 ft 12:00AM Apr 21, 2024Forecast: 358.69 ft 6:00AM Apr 21, 2024Forecast: 358.73 ft 12:00PM Apr 21, 2024Forecast: 358.68 ft 6:00PM Apr 21, 2024Forecast: 358.69 ft 12:00AM Apr 22, 2024Forecast: 358.71 ft 6:00AM Apr 22, 2024Forecast: 358.76 ft 12:00PM Apr 22, 2024Forecast: 358.79 ft 6:00PM Apr 22, 2024Forecast: 358.68 ft 12:00AM Apr 23, 2024Forecast: 358.74 ft 6:00AM Apr 23, 2024Forecast: 358.71 ft 12:00PM Apr 23, 2024Highest Forecast: 358.84 ft 6:00PM Apr 23, 2024NJNT1(plotting HGIRZ) Graph Created (10:30PM Apr 17, 2024)ObservedForecast (issued 11:11AM Apr 17)Latest observed value: 358.13 ft at 9:00 PM CDT 17-Apr-2024. Flood Stage is 361.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
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 Locations Upstream Gauge Downstream Gauge Downstream Locations
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.
Zoom Level:14
KML Image
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
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 Collapse

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:
Additional Information Collapse
New flood categories are in effect.
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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
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Memphis, TN 38120
(901) 544-0399
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