Michigan alerts

Ontonagon County, Michigan weather alerts

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

Checked Sun, Sep 20, 2026, 5:59 PM EDT. Times are Eastern Daylight Time.

Ontonagon County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Ontonagon County, Michigan 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 Ontonagon 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 Ontonagon County

In the past year the National Weather Service issued 88 alerts for Ontonagon County, including 12 severe thunderstorm warnings, 7 winter storm warnings, 3 blizzard warnings and 2 red flag warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning12Aug 7, 2026
Winter Storm Warning7Apr 2, 2026
Blizzard Warning3Mar 15, 2026
Red Flag Warning2May 16, 2026
Extreme Cold Warning1Jan 22, 2026
Extreme Heat Warning1Jul 13, 2026
Freeze Warning1Oct 8, 2025
Ice Storm Warning1Apr 4, 2026
Lakeshore Flood Warning1Mar 15, 2026
Winter Storm Watch6Apr 3, 2026
Severe Thunderstorm Watch3Aug 7, 2026
Extreme Cold Watch2Jan 23, 2026
Flood Watch2Apr 23, 2026
Fire Weather Watch1May 16, 2026
Freeze Watch1Oct 7, 2025
Tornado Watch1Jul 20, 2026
Winter Weather Advisory24Mar 16, 2026
Dense Fog Advisory6Sep 1, 2026
Cold Weather Advisory3Jan 25, 2026
Lakeshore Flood Advisory3Mar 16, 2026
Flood Advisory2Jul 30, 2026
Frost Advisory2Sep 14, 2026
Heat Advisory2Jul 12, 2026
Wind Advisory1Feb 27, 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. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Extreme Heat Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Red Flag Warning
  15. Red Flag Warning
  16. Ice Storm Warning
  17. Winter Storm Warning
  18. Lakeshore Flood Warning
  19. Winter Storm Warning
  20. Blizzard Warning
  21. Winter Storm Warning
  22. Winter Storm Warning
  23. Extreme Cold Warning
  24. Winter Storm Warning
  25. Winter Storm Warning
  26. Blizzard Warning
  27. Winter Storm Warning
  28. Blizzard Warning
  29. Freeze Warning
Every alert, most recent first
  1. Frost Advisory
  2. Dense Fog Advisory
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Severe Thunderstorm Watch
  6. Flood Advisory
  7. Dense Fog Advisory
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Watch
  14. Tornado Watch
  15. Severe Thunderstorm Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Extreme Heat Warning
  19. Heat Advisory
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Watch
  23. Heat Advisory
  24. Frost Advisory
  25. Red Flag Warning
  26. Fire Weather Watch
  27. Red Flag Warning
  28. Flood Advisory
  29. Flood Watch
  30. Dense Fog Advisory
  31. Dense Fog Advisory
  32. Flood Watch
  33. Ice Storm Warning
  34. Winter Storm Watch
  35. Winter Storm Warning
  36. Winter Storm Watch
  37. Lakeshore Flood Advisory
  38. Winter Weather Advisory
  39. Lakeshore Flood Warning
  40. Winter Storm Watch

The 40 most recent of 88.

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 Ontonagon 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.