Keweenaw County weather alerts
There are no active weather alerts for Keweenaw County, MI right now.
Since 2016 the National Weather Service has issued about 419 alerts that included Keweenaw County, roughly 42 a year. The most common is the winter weather advisory (167 from 2016 to 2025). No tornado warnings were recorded here in that period. 2 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 Keweenaw County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Houghton County.
Keweenaw County alert history
Alert events that included Keweenaw County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 167 | 14 | March 10, 2026 |
| Wind Advisory | 64 | 3 | September 15, 2026 |
| Winter Storm Warning | 51 | 8 | April 4, 2026 |
| Winter Storm Watch | 30 | 6 | April 4, 2026 |
| Severe Thunderstorm Warning | 27 | 4 | July 20, 2026 |
| Dense Fog Advisory | 19 | 7 | October 23, 2026 |
| Blizzard Warning | 8 | 2 | March 15, 2026 |
| Red Flag Warning | 7 | 0 | June 2, 2025 |
| Frost Advisory | 7 | 1 | May 21, 2026 |
| Flood Watch | 7 | 2 | April 24, 2026 |
| Severe Thunderstorm Watch | 6 | 2 | August 7, 2026 |
| Flood Advisory | 5 | 0 | June 21, 2025 |
| High Wind Warning | 4 | 1 | February 27, 2026 |
| Cold Weather Advisory | 4 | 3 | January 25, 2026 |
| Fire Weather Watch | 3 | 0 | June 13, 2018 |
| High Wind Watch | 3 | 1 | February 27, 2026 |
| Lake Effect Snow Warning | 3 | 0 | January 6, 2017 |
| Freeze Warning | 1 | 0 | September 18, 2020 |
| Heat Advisory | 1 | 1 | July 12, 2026 |
| Ice Storm Warning | 1 | 0 | March 5, 2022 |
| Coastal Flood Advisory | 1 | 0 | February 28, 2025 |
| Extreme Cold Watch | 0 | 2 | January 23, 2026 |
| Extreme Cold Warning | 0 | 1 | January 22, 2026 |
| Extreme Heat Warning | 0 | 1 | July 13, 2026 |
Tornado history in Keweenaw County
2 tornadoes have been recorded in Keweenaw County since 1950. That ranks 80 of 83 counties in Michigan. The most recent was on August 28, 2003 (rated F0).
Strongest tornadoes in Keweenaw County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 11, 1987 | F0 | Keweenaw County | 6 mi | 23 yd | 0 | 0 |
| August 28, 2003 | F0 | Keweenaw County | 0.1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 28, 2003 | F0 | Keweenaw County | 0.1 mi | 10 yd | 0 | 0 |
| July 11, 1987 | F0 | Keweenaw County | 6 mi | 23 yd | 0 | 0 |
About Keweenaw County
- Population: 2,161 (2024 estimate)
- State: Michigan
- NOAA Weather Radio SAME code: 026083 (how to use it)