Tennessee alerts

Lewis County, Tennessee weather alerts

1 National Weather Service alert is in force for Lewis County: a heat advisory.

Checked Sun, Sep 20, 2026, 8:37 AM CDT. Times are Central Daylight Time.

Lewis County forecastLive radar here

Radar

Reflectivity now over Lewis County, Tennessee. Open it to see warnings and watches on the map.

Open the live radar with warnings and watches

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product in force for Lewis 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 Until 10 hr 22 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.

NWS Nashville TNShare this alert

The past year in Lewis County

In the past year the National Weather Service issued 78 alerts for Lewis County, including 13 severe thunderstorm warnings, 6 flash flood warnings, 3 extreme heat warnings and 2 tornado warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning13Aug 8, 2026
Flash Flood Warning6Aug 20, 2026
Extreme Heat Warning3Aug 14, 2026
Tornado Warning2Apr 28, 2026
Extreme Cold Warning1Jan 26, 2026
Ice Storm Warning1Jan 24, 2026
Severe Thunderstorm Watch6Jul 26, 2026
Flood Watch4Jul 21, 2026
Tornado Watch3Apr 27, 2026
Extreme Heat Watch1Jun 29, 2026
Winter Storm Watch1Jan 23, 2026
Dense Fog Advisory18Aug 27, 2026
Heat Advisory8Sep 15, 2026
Flood Advisory5Jul 6, 2026
Cold Weather Advisory3Jan 31, 2026
Wind Advisory2Mar 15, 2026
Freezing Fog Advisory1Jan 22, 2026

Warnings issued

  1. Flash Flood Warning
  2. Extreme Heat Warning
  3. Severe Thunderstorm Warning
  4. Flash Flood Warning
  5. Severe Thunderstorm Warning
  6. Extreme Heat Warning
  7. Flash Flood Warning
  8. Flash Flood Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Extreme Heat Warning
  12. Severe Thunderstorm Warning
  13. Tornado Warning
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Warning
  16. Tornado Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Extreme Cold Warning
  23. Ice Storm Warning
  24. Flash Flood Warning
  25. Severe Thunderstorm Warning
  26. Flash Flood Warning
Every alert, most recent first
  1. Heat Advisory
  2. Heat Advisory
  3. Heat Advisory
  4. Dense Fog Advisory
  5. Flash Flood Warning
  6. Extreme Heat Warning
  7. Heat Advisory
  8. Severe Thunderstorm Warning
  9. Flash Flood Warning
  10. Severe Thunderstorm Warning
  11. Extreme Heat Warning
  12. Severe Thunderstorm Watch
  13. Heat Advisory
  14. Flash Flood Warning
  15. Flash Flood Warning
  16. Severe Thunderstorm Watch
  17. Flood Watch
  18. Heat Advisory
  19. Severe Thunderstorm Warning
  20. Flood Watch
  21. Dense Fog Advisory
  22. Flood Advisory
  23. Dense Fog Advisory
  24. Flood Advisory
  25. Heat Advisory
  26. Severe Thunderstorm Watch
  27. Severe Thunderstorm Warning
  28. Extreme Heat Warning
  29. Extreme Heat Watch
  30. Heat Advisory
  31. Flood Advisory
  32. Dense Fog Advisory
  33. Flood Watch
  34. Severe Thunderstorm Watch
  35. Severe Thunderstorm Warning
  36. Tornado Warning
  37. Severe Thunderstorm Warning
  38. Severe Thunderstorm Warning
  39. Tornado Warning
  40. Severe Thunderstorm Warning

The 40 most recent of 78.

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 Lewis 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.