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.
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.























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.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 12 | Aug 7, 2026 |
| Winter Storm Warning | 7 | Apr 2, 2026 |
| Blizzard Warning | 3 | Mar 15, 2026 |
| Red Flag Warning | 2 | May 16, 2026 |
| Extreme Cold Warning | 1 | Jan 22, 2026 |
| Extreme Heat Warning | 1 | Jul 13, 2026 |
| Freeze Warning | 1 | Oct 8, 2025 |
| Ice Storm Warning | 1 | Apr 4, 2026 |
| Lakeshore Flood Warning | 1 | Mar 15, 2026 |
| Winter Storm Watch | 6 | Apr 3, 2026 |
| Severe Thunderstorm Watch | 3 | Aug 7, 2026 |
| Extreme Cold Watch | 2 | Jan 23, 2026 |
| Flood Watch | 2 | Apr 23, 2026 |
| Fire Weather Watch | 1 | May 16, 2026 |
| Freeze Watch | 1 | Oct 7, 2025 |
| Tornado Watch | 1 | Jul 20, 2026 |
| Winter Weather Advisory | 24 | Mar 16, 2026 |
| Dense Fog Advisory | 6 | Sep 1, 2026 |
| Cold Weather Advisory | 3 | Jan 25, 2026 |
| Lakeshore Flood Advisory | 3 | Mar 16, 2026 |
| Flood Advisory | 2 | Jul 30, 2026 |
| Frost Advisory | 2 | Sep 14, 2026 |
| Heat Advisory | 2 | Jul 12, 2026 |
| Wind Advisory | 1 | Feb 27, 2026 |
Warnings issued
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Red Flag Warning
- Red Flag Warning
- Ice Storm Warning
- Winter Storm Warning
- Lakeshore Flood Warning
- Winter Storm Warning
- Blizzard Warning
- Winter Storm Warning
- Winter Storm Warning
- Extreme Cold Warning
- Winter Storm Warning
- Winter Storm Warning
- Blizzard Warning
- Winter Storm Warning
- Blizzard Warning
- Freeze Warning
Every alert, most recent first
- Frost Advisory
- Dense Fog Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Flood Advisory
- Dense Fog Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Tornado Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Heat Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Heat Advisory
- Frost Advisory
- Red Flag Warning
- Fire Weather Watch
- Red Flag Warning
- Flood Advisory
- Flood Watch
- Dense Fog Advisory
- Dense Fog Advisory
- Flood Watch
- Ice Storm Warning
- Winter Storm Watch
- Winter Storm Warning
- Winter Storm Watch
- Lakeshore Flood Advisory
- Winter Weather Advisory
- Lakeshore Flood Warning
- 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.