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Advanced Hydrologic Prediction Service
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This probabilistic forecast is issued by the Lower Mississippi River Forecast Center.
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Forecasts for the Tennessee River at Chattanooga are issued routinely year-round.
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Upstream Gauge - at Chickamauga Dam Upstream Gauge Downstream Gauge Downstream Gauge - above Nickajack Dam (Jasper 5S)
Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 655
Moderate Flood Stage: 653
Flood Stage: 651
Action Stage: 649
Low Stage (in feet): -9999

Historic Crests
(1) 678.90 ft on 03/11/1867
(2) 674.80 ft on 03/01/1875
(3) 659.98 ft on 03/18/1973
(4) 653.67 ft on 04/20/1998
(5) 651.36 ft on 07/08/2013
(6) 651.17 ft on 02/24/2019 (P)

(P): Preliminary values subject to further review.

Recent Crests
(1) 651.17 ft on 02/24/2019 (P)
(2) 651.36 ft on 07/08/2013
(3) 653.67 ft on 04/20/1998
(4) 659.98 ft on 03/18/1973
(5) 674.80 ft on 03/01/1875
(6) 678.90 ft on 03/11/1867

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
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
678.9 Flood of record, March 11, 1867.
655 Major flooding begins.
653 Moderate flooding begins.
651 Flooding begins.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
610 ft Municipal and industrial water intakes could experience operational issues below this elevation.

Other Real-time and/or Archive Data Sources:

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
National Weather Service
Morristown Weather Forecast Office
5974 Commerce Blvd.
Morristown, TN 37814
(423) 586-3771
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Page last modified: 2-Nov-2020 7:30 PM
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