Sumner County, Tennessee Weather Alerts: Warnings and Watches

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Sumner County, Tennessee. Open it for the live map, where it pans and zooms.

Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product in force for Sumner County, worst first, with its full text.

Heat Advisory

Moderate

Heat Advisory issued September 19 at 10:42PM CDT until September 20 at 7:00PM CDT by NWS Nashville TN

Issued Sat, Sep 19, 10:42 PM CDTUntil Sun, Sep 20, 7:00 PM CDT 6 hr 53 min left

Areas Stewart, TN; Montgomery, TN; Robertson, TN; Sumner, TN; Macon, TN; Clay, TN; Houston, TN; Humphreys, TN; Dickson, TN; Cheatham, TN; Davidson, TN; Wilson, TN; Trousdale, TN; Smith, TN; Jackson, TN; Putnam, TN; Overton, TN; Perry, TN; Hickman, TN; Lewis, TN; Williamson, TN; Maury, TN; Marshall, TN; Rutherford, TN; Cannon, TN; De Kalb, TN; White, TN; Bedford, TN; Coffee, TN; Warren, TN; Wayne, TN; Lawrence, TN; Giles, TN

Full text

* WHAT...Heat index values up to 108. * WHERE...Across Middle Tennessee. * WHEN...Until 7 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

What to do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

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The past year in Sumner County

In the past year the National Weather Service issued 93 alerts for Sumner County, including 24 severe thunderstorm warnings, 10 flash flood warnings, 2 extreme heat warnings and 2 tornado warnings.

Product	Issued	Most recent
Severe Thunderstorm Warning	24	Jul 26, 2026
Flash Flood Warning	10	Aug 8, 2026
Extreme Heat Warning	2	Aug 14, 2026
Tornado Warning	2	Apr 28, 2026
Extreme Cold Warning	1	Jan 26, 2026
Winter Storm Warning	1	Jan 24, 2026
Severe Thunderstorm Watch	8	Aug 22, 2026
Flood Watch	5	Jul 21, 2026
Tornado Watch	3	Apr 28, 2026
Extreme Heat Watch	1	Jun 29, 2026
Winter Storm Watch	1	Jan 23, 2026
Dense Fog Advisory	13	May 25, 2026
Flood Advisory	8	Jul 11, 2026
Heat Advisory	7	Sep 15, 2026
Cold Weather Advisory	3	Jan 31, 2026
Freezing Fog Advisory	2	Jan 22, 2026
Wind Advisory	2	Mar 15, 2026

Warnings issued

Every alert, most recent first

The 40 most recent of 93.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.

Nearby

The counties around Sumner County, with what is in force in each.

What this means

Warning: The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch: Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory: A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement: Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.