Nebraska alerts

Johnson County, Nebraska weather alerts

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

Checked Sun, Sep 20, 2026, 5:20 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, Nebraska. 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, Nebraska 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 124 alerts for Johnson County, including 36 severe thunderstorm warnings, 6 red flag warnings, 5 flash flood warnings and 2 high wind warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning36Sep 14, 2026
Red Flag Warning6Mar 28, 2026
Flash Flood Warning5May 18, 2026
High Wind Warning2Mar 15, 2026
Tornado Warning2May 18, 2026
Extreme Heat Warning1Jul 25, 2026
Snow Squall Warning1Jan 16, 2026
Severe Thunderstorm Watch10Aug 19, 2026
Flood Watch7Sep 14, 2026
Fire Weather Watch5Mar 28, 2026
Tornado Watch5Sep 14, 2026
High Wind Watch1Mar 15, 2026
Dense Fog Advisory14Sep 16, 2026
Wind Advisory8Jun 17, 2026
Heat Advisory7Sep 8, 2026
Winter Weather Advisory5Mar 15, 2026
Frost Advisory4May 2, 2026
Flood Advisory3Aug 16, 2026
Cold Weather Advisory2Jan 26, 2026

Warnings issued

  1. Severe Thunderstorm Warning
  2. Severe Thunderstorm Warning
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Severe Thunderstorm Warning
  6. Severe Thunderstorm Warning
  7. Extreme Heat Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Warning
  16. Flash Flood Warning
  17. Severe Thunderstorm Warning
  18. Tornado Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Severe Thunderstorm Warning
  24. Severe Thunderstorm Warning
  25. Flash Flood Warning
  26. Severe Thunderstorm Warning
  27. Severe Thunderstorm Warning
  28. Severe Thunderstorm Warning
  29. Severe Thunderstorm Warning
  30. Flash Flood Warning
  31. Severe Thunderstorm Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Tornado Warning
  38. Severe Thunderstorm Warning
  39. Severe Thunderstorm Warning
  40. Flash Flood Warning
  41. Flash Flood Warning
  42. Severe Thunderstorm Warning
  43. Red Flag Warning
  44. Red Flag Warning
  45. Red Flag Warning
  46. Red Flag Warning
  47. High Wind Warning
  48. Red Flag Warning
  49. Severe Thunderstorm Warning
  50. Red Flag Warning
  51. Snow Squall Warning
  52. High Wind Warning
  53. Severe Thunderstorm Warning
Every alert, most recent first
  1. Dense Fog Advisory
  2. Severe Thunderstorm Warning
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Flood Watch
  6. Tornado Watch
  7. Heat Advisory
  8. Heat Advisory
  9. Dense Fog Advisory
  10. Dense Fog Advisory
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Watch
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Watch
  16. Flood Advisory
  17. Dense Fog Advisory
  18. Dense Fog Advisory
  19. Heat Advisory
  20. Extreme Heat Warning
  21. Heat Advisory
  22. Heat Advisory
  23. Dense Fog Advisory
  24. Severe Thunderstorm Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Warning
  27. Severe Thunderstorm Warning
  28. Severe Thunderstorm Watch
  29. Heat Advisory
  30. Flood Watch
  31. Wind Advisory
  32. Severe Thunderstorm Watch
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Watch
  35. Heat Advisory
  36. Severe Thunderstorm Warning
  37. Flood Watch
  38. Severe Thunderstorm Watch
  39. Flood Watch
  40. Severe Thunderstorm Warning

The 40 most recent of 124.

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.