Severe Thunderstorm Warnings in Michigan
12,586 severe thunderstorm warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 12,586
- Busiest year
- 2006613 severe thunderstorm warnings
- Average year
- 307over 41 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Oakland County423
- Wayne County406
- Washtenaw County405
- Berrien County400
- Cass County393
- Allegan County392
- Marquette County392
- Kent County363
- Saint Joseph County351
- Lenawee County343
- Calhoun County342
- Genesee County328
- Macomb County325
- Jackson County319
- Kalamazoo County319
- Saint Clair County318
- Monroe County310
- Eaton County309
- Livingston County309
- Saginaw County306
- Ingham County305
- Ottawa County304
- Barry County303
- Van Buren County302
- Branch County300
- Montcalm County292
- Lapeer County290
- Hillsdale County279
- Menominee County276
- Ontonagon County276
- Tuscola County268
- Shiawassee County263
- Ionia County262
- Gogebic County260
- Clinton County256
- Delta County252
- Baraga County249
- Houghton County245
- Dickinson County240
- Iron County239
43 more counties
- Sanilac County234
- Gratiot County232
- Bay County231
- Alcona County223
- Ogemaw County223
- Muskegon County222
- Iosco County219
- Alger County216
- Isabella County213
- Newaygo County212
- Roscommon County206
- Schoolcraft County204
- Crawford County198
- Huron County196
- Mecosta County196
- Alpena County193
- Midland County192
- Oscoda County191
- Kalkaska County189
- Antrim County182
- Grand Traverse County180
- Wexford County176
- Gladwin County172
- Otsego County167
- Presque Isle County166
- Clare County165
- Arenac County164
- Missaukee County164
- Oceana County162
- Cheboygan County159
- Montmorency County155
- Osceola County147
- Manistee County144
- Lake County142
- Mason County140
- Chippewa County137
- Charlevoix County136
- Leelanau County129
- Mackinac County127
- Benzie County125
- Luce County107
- Emmet County104
- Keweenaw County90
The latest severe thunderstorm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 10:31 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 54 min |
| Sep 15, 10:27 PM EDT | Severe Thunderstorm Warning | IWX | Hillsdale | 18 min |
| Sep 5, 1:57 AM EDT | Severe Thunderstorm Warning | GRR | Kalamazoo, Van Buren | 32 min |
| Sep 5, 1:37 AM EDT | Severe Thunderstorm Warning | IWX | Branch, Saint Joseph | 38 min |
| Sep 5, 1:11 AM EDT | Severe Thunderstorm Warning | IWX | Branch, Hillsdale | 27 min |
| Sep 5, 1:08 AM EDT | Severe Thunderstorm Warning | IWX | Hillsdale | 52 min |
| Sep 4, 8:24 AM EDT | Severe Thunderstorm Warning | GRR | Eaton | 27 min |
| Sep 3, 3:50 PM EDT | Severe Thunderstorm Warning | DTX | Monroe | 43 min |
| Sep 3, 3:44 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 49 min |
| Sep 3, 3:26 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 47 min |
| Sep 3, 3:21 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 54 min |
| Sep 3, 3:16 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Jackson | 19 min |
Nearby
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. Rebuilt daily.