Texas alerts

Johnson County, Texas weather alerts

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

Checked Sun, Sep 20, 2026, 12:02 PM CDT. Times are Central Daylight Time.

Johnson County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Johnson County, Texas 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 Johnson 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 Johnson County

In the past year the National Weather Service issued 75 alerts for Johnson County, including 15 severe thunderstorm warnings, 3 extreme heat warnings, 3 flash flood warnings and 3 freeze warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning15Sep 11, 2026
Extreme Heat Warning3Aug 23, 2026
Flash Flood Warning3Jun 7, 2026
Freeze Warning3Mar 17, 2026
Tornado Warning3Apr 28, 2026
Flood Warning2Jun 7, 2026
Extreme Cold Warning1Jan 24, 2026
Red Flag Warning1Mar 15, 2026
Winter Storm Warning1Jan 23, 2026
Severe Thunderstorm Watch5Jul 5, 2026
Flood Watch3Jun 6, 2026
Tornado Watch3Apr 28, 2026
Extreme Cold Watch1Jan 24, 2026
Fire Weather Watch1Mar 15, 2026
Freeze Watch1Nov 9, 2025
Winter Storm Watch1Jan 23, 2026
Heat Advisory12Sep 12, 2026
Dense Fog Advisory5Feb 16, 2026
Wind Advisory5Mar 15, 2026
Flood Advisory4Jul 13, 2026
Cold Weather Advisory1Jan 31, 2026
Freezing Fog Advisory1Jan 28, 2026

Warnings issued

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

The 40 most recent of 75.

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 Johnson 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.