Sanilac County weather alerts
There are no active weather alerts for Sanilac County, MI right now.
Since 2016 the National Weather Service has issued about 433 alerts that included Sanilac County, roughly 43 a year. The most common is the winter weather advisory (85 from 2016 to 2025). The last tornado warning was issued on May 17, 2026. 21 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Sanilac County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Lapeer County, St. Clair County, Tuscola County, Huron County.
Sanilac County alert history
Alert events that included Sanilac County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 85 | 7 | March 15, 2026 |
| Severe Thunderstorm Warning | 63 | 9 | September 3, 2026 |
| Wind Advisory | 56 | 2 | March 15, 2026 |
| Frost Advisory | 30 | 7 | October 18, 2026 |
| Severe Thunderstorm Watch | 30 | 7 | September 3, 2026 |
| Dense Fog Advisory | 27 | 7 | October 25, 2026 |
| Winter Storm Warning | 22 | 0 | February 16, 2025 |
| Winter Storm Watch | 19 | 1 | January 14, 2026 |
| Flood Watch | 15 | 3 | June 17, 2026 |
| Cold Weather Advisory | 13 | 4 | February 7, 2026 |
| Freeze Warning | 12 | 2 | May 12, 2026 |
| Heat Advisory | 10 | 2 | July 14, 2026 |
| High Wind Warning | 10 | 1 | March 13, 2026 |
| Flood Advisory | 9 | 2 | August 12, 2026 |
| High Wind Watch | 9 | 1 | March 13, 2026 |
| Tornado Warning | 6 | 1 | May 17, 2026 |
| Extreme Cold Warning | 3 | 0 | January 29, 2019 |
| Tornado Watch | 3 | 1 | April 15, 2026 |
| Red Flag Warning | 2 | 1 | May 4, 2026 |
| Extreme Heat Watch | 2 | 2 | July 14, 2026 |
| Lake Effect Snow Warning | 1 | 0 | January 4, 2016 |
| Extreme Heat Warning | 1 | 1 | June 30, 2026 |
| Extreme Cold Watch | 1 | 1 | January 23, 2026 |
| Flood Warning | 1 | 0 | January 11, 2020 |
| Ice Storm Warning | 1 | 0 | January 11, 2020 |
| Fire Weather Watch | 1 | 0 | October 11, 2024 |
| Freeze Watch | 1 | 1 | May 2, 2026 |
Tornado history in Sanilac County
21 tornadoes have been recorded in Sanilac County since 1950, injuring 1 people. That ranks 22 of 83 counties in Michigan. The most recent was on July 26, 2025 (rated EF1).
Strongest tornadoes in Sanilac County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 2, 1984 | F3 | Sanilac County | 15.6 mi | 400 yd | 0 | 1 |
| June 22, 2015 | EF1 | Tuscola County | 22.9 mi | 250 yd | 0 | 0 |
| May 16, 1974 | F1 | Sanilac County | 9 mi | 50 yd | 0 | 0 |
| April 16, 1998 | F1 | Sanilac County | 7.5 mi | 100 yd | 0 | 0 |
| June 15, 1982 | F1 | Sanilac County | 5.6 mi | 40 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 26, 2025 | EF1 | Sanilac County | 1.7 mi | 100 yd | 0 | 0 |
| July 14, 2023 | EF0 | Sanilac County | 3.8 mi | 475 yd | 0 | 0 |
| September 10, 2019 | EF0 | Sanilac County | 3.8 mi | 75 yd | 0 | 0 |
| August 6, 2018 | EF0 | Sanilac County | 0.2 mi | 25 yd | 0 | 0 |
| November 6, 2015 | EF1 | Sanilac County | 3.6 mi | 150 yd | 0 | 0 |
About Sanilac County
- Population: 40,293 (2024 estimate)
- State: Michigan
- NOAA Weather Radio SAME code: 026151 (how to use it)