* WHAT...Heat index values up to 108 expected.
* WHERE...Across Middle Tennessee.
* WHEN...Until 7 PM CDT Sunday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Heat Advisory
Until 2026-09-20T00:00:00-05:00
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National Weather Service
* WHAT...Heat index values up to 108 expected.
* WHERE...Across Middle Tennessee.
* WHEN...Until 7 PM CDT Sunday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
DUCK RIVER ABOVE HURRICANE MILLS, TN
Realtime Data
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Report
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Conditions
463
Discharge (cfs)
0.5
Gauge Height (ft)
Streamflow discharge was last observed at 463 cfs, and a gauge height of 0.52 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 525 .
Weather today, Tomorrow,
The main contributors to the flow are precipitation and runoff from surrounding areas. There are several potential tributaries and dams that could affect the flow, including the Piney River and Normandy Dam. Seasonal trends show that the river experiences high flows in the winter and spring due to increased precipitation, while summer and fall months show lower flows. The hydrology of the Duck River also supports a diverse range of aquatic life, including over 50 species of freshwater mussels. An interesting fact is that the Duck River is one of the most biologically diverse rivers in the country.