New York alerts

Onondaga County, New York weather alerts

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

Checked Sun, Sep 20, 2026, 6:05 PM EDT. Times are Eastern Daylight Time.

Onondaga County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Onondaga County, New York 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 Onondaga 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 Onondaga County

In the past year the National Weather Service issued 117 alerts for Onondaga County, including 27 severe thunderstorm warnings, 7 snow squall warnings, 6 flash flood warnings and 5 lake effect snow warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning27Sep 13, 2026
Snow Squall Warning7Jan 22, 2026
Flash Flood Warning6Sep 2, 2026
Lake Effect Snow Warning5Mar 17, 2026
Winter Storm Warning3Jan 25, 2026
Flood Warning2Apr 5, 2026
Freeze Warning2May 3, 2026
Tornado Warning2Sep 2, 2026
Extreme Cold Warning1Feb 7, 2026
Extreme Heat Warning1Jul 1, 2026
High Wind Warning1Nov 5, 2025
Severe Thunderstorm Watch9Aug 27, 2026
Winter Storm Watch5Jan 25, 2026
Flood Watch2Sep 2, 2026
Tornado Watch2Sep 2, 2026
Extreme Cold Watch1Feb 7, 2026
Extreme Heat Watch1Jul 1, 2026
Freeze Watch1Oct 9, 2025
High Wind Watch1Nov 5, 2025
Winter Weather Advisory16Mar 16, 2026
Wind Advisory9Jun 18, 2026
Frost Advisory6May 21, 2026
Cold Weather Advisory3Feb 8, 2026
Heat Advisory3Jul 14, 2026
Dense Fog Advisory1Feb 17, 2026

Warnings issued

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

The 40 most recent of 117.

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 Onondaga 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.