Tennessee alerts

Union County, Tennessee weather alerts

No watches, warnings or advisories are in force for Union County.

Checked Sat, Sep 26, 2026, 2:43 AM EDT. Times are Eastern Daylight Time.

Union County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Union County, Tennessee Open the live map with warnings and watches

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

Alerts in force

Nothing is in force for Union County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.

The past year in Union County

In the past year the National Weather Service issued 70 alerts for Union County, including 12 severe thunderstorm warnings, 5 flash flood warnings and 2 winter storm warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning12Sep 20, 2026
Flash Flood Warning5Jul 22, 2026
Winter Storm Warning2Jan 30, 2026
Flood Watch7Aug 12, 2026
Severe Thunderstorm Watch5Aug 17, 2026
Winter Storm Watch2Jan 24, 2026
Flood Advisory14Aug 17, 2026
Dense Fog Advisory9Sep 13, 2026
Cold Weather Advisory4Jan 31, 2026
Heat Advisory3Sep 3, 2026
Wind Advisory3Mar 16, 2026
Winter Weather Advisory2Jan 30, 2026
Freezing Fog Advisory1Dec 7, 2025
Frost Advisory1May 3, 2026

Warnings issued

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

The 40 most recent of 70.

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 links to the alert's own page, with its text, map, radar and sounding.

Every alert in Union County since 1986

Nearby

The counties around Union 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.

Follow these alerts

Alerts for Union County in your reader or calendar.

The alerts on this page as a feed, updated every minute, for a feed reader or an app that reads Atom or RSS, and as a calendar where each alert runs from when it takes effect to when it ends. A feed or a calendar is not a warning siren: for warnings, keep a weather radio or your phone's emergency alerts on.

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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.