Alert archive / Michigan / Mesoscale Discussions

Mesoscale Discussions in Michigan, 2025

70 mesoscale discussions in 2025. 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 mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in 2025. Tap one for its archive.

Mesoscale Discussions
70
Busiest month
June17 mesoscale discussions
Busiest day
March 30, 20256 mesoscale discussions

Over time

By month

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.

IssuedProductOfficeCountiesLasted
Jan 28, 7:33 AM ESTMesoscale DiscussionSPCAlger, Baraga, Delta, Houghton, Keweenaw, Mackinac and 2 more4 hr
Mar 15, 12:57 AM EDTMesoscale DiscussionSPCBerrien, Cass, Saint Joseph, Van Buren63 min
Mar 15, 3:48 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Hillsdale, Jackson, Lenawee, Livingston and 5 more87 min
Mar 19, 1:17 PM EDTMesoscale DiscussionSPCMenominee3 hr
Mar 19, 8:48 PM EDTMesoscale DiscussionSPCBranch, Saint Joseph87 min
Mar 28, 8:58 PM EDTMesoscale DiscussionSPCAlger, Baraga, Chippewa, Houghton, Keweenaw, Luce and 3 more5 hr
Mar 29, 5:09 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Charlevoix, Cheboygan, Crawford and 9 more4 hr
Mar 29, 9:32 PM EDTMesoscale DiscussionSPCDickinson, Iron5 hr
Mar 30, 1:43 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Saint Joseph, Van Buren2 hr
Mar 30, 3:05 PM EDTMesoscale DiscussionSPCCass115 min
Mar 30, 3:07 PM EDTMesoscale DiscussionSPCAlger, Baraga, Chippewa, Delta, Dickinson, Gogebic and 8 more5 hr
Mar 30, 3:49 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Clinton, Eaton, Genesee and 22 more116 min
Mar 30, 7:12 PM EDTMesoscale DiscussionSPCArenac, Bay, Genesee, Gladwin, Huron, Lapeer and 8 more93 min
Apr 2, 8:26 PM EDTMesoscale DiscussionSPCAllegan, Barry, Bay, Branch, Calhoun, Cass and 28 more2 hr
Apr 18, 8:22 AM EDTMesoscale DiscussionSPCOttawa113 min
Apr 18, 10:36 AM EDTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Clinton, Eaton, Genesee and 22 more114 min
Apr 18, 4:51 PM EDTMesoscale DiscussionSPCBarry, Calhoun, Cass, Clinton, Eaton, Genesee and 12 more114 min
Apr 18, 9:45 PM EDTMesoscale DiscussionSPCClare, Crawford, Gladwin, Isabella, Kalkaska, Lake and 10 more90 min
Apr 28, 11:35 PM EDTMesoscale DiscussionSPCDelta, Menominee85 min
May 15, 7:07 PM EDTMesoscale DiscussionSPCBaraga, Delta, Dickinson, Gogebic, Iron, Menominee and 1 more83 min
May 15, 7:50 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 30 more85 min
May 15, 10:00 PM EDTMesoscale DiscussionSPCAllegan, Barry, Cass, Ionia, Kalamazoo, Kent and 10 more90 min
May 15, 10:47 PM EDTMesoscale DiscussionSPCArenac, Bay, Genesee, Gladwin, Ingham, Iosco and 14 more118 min
May 16, 3:30 PM EDTMesoscale DiscussionSPCAlger, Delta, Dickinson, Menominee2 hr
May 16, 8:23 PM EDTMesoscale DiscussionSPCAllegan, Antrim, Arenac, Barry, Bay, Benzie and 32 more2 hr
Jun 3, 2:32 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Menominee, Schoolcraft118 min
Jun 3, 6:07 PM EDTMesoscale DiscussionSPCMenominee83 min
Jun 4, 12:57 PM EDTMesoscale DiscussionSPCGenesee, Hillsdale, Jackson, Lapeer, Lenawee, Livingston and 7 more2 hr
Jun 9, 2:17 PM EDTMesoscale DiscussionSPCAllegan, Arenac, Barry, Bay, Branch, Calhoun and 39 more88 min
Jun 9, 6:42 PM EDTMesoscale DiscussionSPCAlpena, Arenac, Bay, Branch, Calhoun, Clinton and 16 more93 min
Jun 18, 11:57 AM EDTMesoscale DiscussionSPCBerrien, Cass2 hr
Jun 18, 3:38 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo and 5 more2 hr
Jun 18, 6:24 PM EDTMesoscale DiscussionSPCClinton, Eaton, Genesee, Hillsdale, Ingham, Jackson and 7 more96 min
Jun 21, 2:34 AM EDTMesoscale DiscussionSPCBaraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more116 min
Jun 21, 6:21 AM EDTMesoscale DiscussionSPCAlpena, Antrim, Arenac, Benzie, Charlevoix, Cheboygan and 18 more84 min
Jun 21, 9:54 AM EDTMesoscale DiscussionSPCAntrim, Charlevoix, Cheboygan, Emmet, Leelanau, Montmorency and 2 more96 min
Jun 24, 1:36 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 14 more114 min
Jun 26, 2:07 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Lenawee, Monroe, Saint Joseph113 min
Jun 27, 1:10 PM EDTMesoscale DiscussionSPCArenac, Barry, Bay, Branch, Calhoun, Cass and 25 more2 hr
Jun 27, 4:03 PM EDTMesoscale DiscussionSPCArenac, Bay, Branch, Calhoun, Eaton, Genesee and 19 more87 min
Jun 27, 5:55 PM EDTMesoscale DiscussionSPCMacomb, Monroe, Oakland, Saint Clair, Sanilac, Wayne65 min
Jun 30, 12:46 PM EDTMesoscale DiscussionSPCAlcona, Arenac, Bay, Branch, Calhoun, Clinton and 21 more119 min
Jul 2, 4:28 PM EDTMesoscale DiscussionSPCAntrim, Arenac, Bay, Benzie, Clare, Clinton and 34 more92 min
Jul 6, 2:27 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Barry, Bay, Branch and 41 more93 min
Jul 8, 3:57 PM EDTMesoscale DiscussionSPCAlger, Delta, Dickinson, Iron, Menominee, Schoolcraft93 min
Jul 9, 2:03 PM EDTMesoscale DiscussionSPCArenac, Barry, Bay, Branch, Calhoun, Clinton and 25 more117 min
Jul 12, 10:06 AM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Barry, Bay, Branch and 39 more2 hr
Jul 15, 6:10 PM EDTMesoscale DiscussionSPCBaraga, Gogebic, Houghton, Iron, Ontonagon2 hr
Jul 16, 5:28 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Branch, Cass, Kalamazoo, Saint Joseph and 1 more62 min
Jul 16, 7:43 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Lenawee, Saint Joseph92 min
Jul 16, 8:00 PM EDTMesoscale DiscussionSPCAntrim, Arenac, Bay, Cheboygan, Clare, Crawford and 21 more60 min
Jul 23, 7:32 PM EDTMesoscale DiscussionSPCBenzie, Charlevoix, Delta, Emmet, Leelanau, Mackinac and 2 more58 min
Jul 24, 10:52 AM EDTMesoscale DiscussionSPCAlpena, Antrim, Charlevoix, Cheboygan, Emmet, Montmorency and 2 more83 min
Jul 24, 3:10 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 12 more2 hr
Jul 24, 5:39 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 20 more96 min
Aug 8, 6:33 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Bay, Clare, Crawford and 11 more87 min
Aug 12, 3:44 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Calhoun, Cass, Kalamazoo and 2 more2 hr
Aug 12, 5:51 PM EDTMesoscale DiscussionSPCChippewa, Delta, Luce, Mackinac, Menominee, Schoolcraft114 min
Aug 12, 5:59 PM EDTMesoscale DiscussionSPCArenac, Bay, Branch, Calhoun, Cass, Clinton and 21 more2 hr
Aug 16, 12:56 PM EDTMesoscale DiscussionSPCBerrien, Van Buren2 hr
Aug 22, 12:52 PM EDTMesoscale DiscussionSPCGogebic, Ontonagon113 min
Nov 9, 10:55 PM ESTMesoscale DiscussionSPCBerrien5 hr
Nov 10, 9:47 AM ESTMesoscale DiscussionSPCAllegan, Berrien, Manistee, Mason, Muskegon, Oceana and 2 more5 hr
Nov 25, 6:32 PM ESTMesoscale DiscussionSPCGogebic, Ontonagon6 hr
Nov 26, 5:42 AM ESTMesoscale DiscussionSPCBaraga, Gogebic, Houghton, Iron, Keweenaw, Ontonagon6 hr
Nov 27, 6:30 AM ESTMesoscale DiscussionSPCAntrim, Charlevoix, Crawford, Grand Traverse, Kalkaska, Leelanau and 5 more5 hr
Nov 27, 12:00 PM ESTMesoscale DiscussionSPCAntrim, Crawford, Ogemaw, Oscoda5 hr
Nov 29, 3:16 PM ESTMesoscale DiscussionSPCBranch4 hr
Dec 26, 5:40 AM ESTMesoscale DiscussionSPCBay, Clare, Clinton, Eaton, Genesee, Gladwin and 23 more6 hr
Dec 29, 4:32 AM ESTMesoscale DiscussionSPCBaraga, Charlevoix, Cheboygan, Chippewa, Delta, Emmet and 3 more6 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

43 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 30, 20256mesoscale discussions
  2. April 18, 20253mesoscale discussions
  3. May 16, 20253mesoscale discussions
  4. June 18, 20253mesoscale discussions
  5. June 21, 20253mesoscale discussions
  6. June 27, 20253mesoscale discussions
  7. July 24, 20253mesoscale discussions
  8. August 12, 20253mesoscale discussions
  9. March 15, 20252mesoscale discussions
  10. March 29, 20252mesoscale discussions
  11. May 15, 20252mesoscale discussions
  12. June 3, 20252mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe 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.