Alert archive / Michigan / Keweenaw County
Weather alerts in Keweenaw County, Michigan, 2025
71 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Keweenaw County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 71
- Warnings
- 16
- Watches
- 8
- Advisories
- 43
- Busiest month
- December13 alerts
- Busiest day
- February 27, 20253 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Keweenaw County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 1 | 50% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Marquette, MI: severe thunderstorm warnings | 49 | 14 | 71% | 33 | 67% | 23 min |
| NWS Marquette, MI: flash flood warnings | 3 | 3 | 0% | 16 | 63% | 173 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 11, 3:06 PM EST | Winter Weather Advisory | MQT | 3 days |
| Jan 17, 3:26 AM EST | Wind Advisory | MQT | 24 hr |
| Jan 17, 2:51 PM EST | Cold Weather Advisory | MQT | 4 days |
| Jan 18, 4:09 AM EST | Winter Weather Advisory | MQT | 3 days |
| Jan 24, 2:36 PM EST | Winter Weather Advisory | MQT | 40 hr |
| Jan 25, 2:36 PM EST | Wind Advisory | MQT | 46 hr |
| Jan 26, 2:02 PM EST | Lakeshore Flood Advisory | MQT | 35 hr |
| Jan 27, 3:01 PM EST | Winter Weather Advisory | MQT | 52 hr |
| Jan 28, 7:33 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 1, 3:07 AM EST | Winter Weather Advisory | MQT | 28 hr |
| Feb 5, 4:17 AM EST | Winter Storm Watch | MQT | 11 hr |
| Feb 5, 3:14 PM EST | Blizzard Warning | MQT | 34 hr |
| Feb 9, 3:20 AM EST | Winter Weather Advisory | MQT | 45 hr |
| Feb 10, 1:43 PM EST | Winter Weather Advisory | MQT | 20 hr |
| Feb 14, 2:09 AM EST | Winter Weather Advisory | MQT | 4 days |
| Feb 17, 2:47 PM EST | Cold Weather Advisory | MQT | 19 hr |
| Feb 27, 2:53 AM EST | Winter Storm Watch | MQT | 12 hr |
| Feb 27, 2:41 PM EST | Wind Advisory | MQT | 34 hr |
| Feb 27, 2:41 PM EST | Winter Storm Warning | MQT | 34 hr |
| Feb 28, 9:50 AM EST | Coastal Flood Advisory | MQT | 5 hr |
| Feb 28, 2:43 PM EST | Lakeshore Flood Advisory | MQT | 15 hr |
| Mar 3, 2:44 PM EST | Winter Storm Watch | MQT | 13 hr |
| Mar 3, 2:44 PM EST | Winter Weather Advisory | MQT | 19 hr |
| Mar 4, 3:38 AM EST | Winter Storm Warning | MQT | 44 hr |
| Mar 4, 3:44 AM EST | Lakeshore Flood Advisory | MQT | 51 hr |
| Mar 5, 4:18 AM EST | Blizzard Warning | MQT | 21 hr |
| Mar 9, 2:51 PM EDT | Wind Advisory | MQT | 5 hr |
| Mar 17, 3:25 PM EDT | Winter Storm Watch | MQT | 24 hr |
| Mar 22, 4:03 AM EDT | Winter Weather Advisory | MQT | 58 hr |
| Mar 22, 2:32 PM EDT | Winter Storm Warning | MQT | 47 hr |
| Mar 27, 3:44 AM EDT | Winter Storm Watch | MQT | 24 hr |
| Mar 27, 3:09 PM EDT | Winter Storm Warning | MQT | 4 days |
| Mar 28, 8:58 PM EDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 1, 3:04 AM EDT | Winter Weather Advisory | MQT | 41 hr |
| Apr 13, 3:31 PM EDT | Winter Weather Advisory | MQT | 46 hr |
| Apr 13, 8:28 PM EDT | Lakeshore Flood Advisory | MQT | 51 hr |
| Apr 14, 2:07 AM EDT | Wind Advisory | MQT | 36 hr |
| Apr 14, 4:03 AM EDT | Winter Storm Warning | MQT | 30 hr |
| May 11, 1:56 PM EDT | Red Flag Warning | MQT | 9 hr |
| May 12, 9:23 AM EDT | Red Flag Warning | MQT | 13 hr |
| May 15, 9:49 PM EDT | Special Weather Statement | MQT | 41 min |
| May 31, 2:11 PM EDT | Frost Advisory | MQT | 19 hr |
| Jun 1, 4:25 PM EDT | Red Flag Warning | MQT | 30 hr |
| Jun 21, 6:00 AM EDT | Severe Thunderstorm Warning | MQT | 60 min |
| Jun 21, 7:30 AM EDT | Areal Flood Advisory | MQT | 4 hr |
| Jul 23, 2:29 PM EDT | Flood Watch | MQT | 7 hr |
| Jul 26, 4:52 PM EDT | Severe Thunderstorm Warning | MQT | 53 min |
| Sep 14, 1:46 AM EDT | Dense Fog Advisory | MQT | 7 hr |
| Sep 23, 1:29 AM EDT | Dense Fog Advisory | MQT | 10 hr |
| Oct 7, 3:06 AM EDT | Frost Advisory | MQT | 31 hr |
| Nov 2, 1:57 AM EST | Wind Advisory | MQT | 41 hr |
| Nov 7, 2:40 PM EST | Winter Weather Advisory | MQT | 3 days |
| Nov 24, 1:48 AM EST | Winter Storm Watch | MQT | 36 hr |
| Nov 25, 2:33 AM EST | Winter Storm Warning | MQT | 64 hr |
| Nov 25, 2:58 AM EST | Lakeshore Flood Advisory | MQT | 70 hr |
| Nov 25, 2:06 PM EST | Blizzard Warning | MQT | 53 hr |
| Nov 26, 5:42 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Nov 28, 2:37 PM EST | Winter Weather Advisory | MQT | 46 hr |
| Dec 1, 2:10 PM EST | Winter Weather Advisory | MQT | 20 hr |
| Dec 12, 2:20 AM EST | Winter Weather Advisory | MQT | 56 hr |
| Dec 16, 1:27 AM EST | Wind Advisory | MQT | 27 hr |
| Dec 16, 1:36 AM EST | Lakeshore Flood Advisory | MQT | 32 hr |
| Dec 17, 3:00 PM EST | Winter Weather Advisory | MQT | 46 hr |
| Dec 17, 3:18 PM EST | Lakeshore Flood Advisory | MQT | 47 hr |
| Dec 18, 1:52 AM EST | Wind Advisory | MQT | 34 hr |
| Dec 19, 2:38 PM EST | Wind Advisory | MQT | 34 hr |
| Dec 25, 2:33 AM EST | Winter Weather Advisory | MQT | 35 hr |
| Dec 26, 2:41 PM EST | Winter Storm Watch | MQT | 24 hr |
| Dec 27, 3:01 PM EST | Blizzard Warning | MQT | 46 hr |
| Dec 27, 3:06 PM EST | Lakeshore Flood Advisory | MQT | 48 hr |
| Dec 27, 3:09 PM EST | Lakeshore Flood Warning | MQT | 48 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 2 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 1 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Blizzard Warning | 4 |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 18 |
| Cold | |
| Cold Weather Advisory | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Coastal Flood Advisory | 1 |
| Lakeshore Flood Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.