Alert archive / Michigan / Mesoscale Discussions

Mesoscale Discussions in Michigan, 2024

66 mesoscale discussions in 2024. 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 2024. Tap one for its archive.

Mesoscale Discussions
66
Busiest month
June16 mesoscale discussions
Busiest day
August 27, 20246 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 12, 6:47 PM ESTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Bay, Benzie and 40 more4 hr
Jan 22, 10:17 AM ESTMesoscale DiscussionSPCAllegan, Berrien, Branch, Calhoun, Cass, Hillsdale and 5 more4 hr
Feb 15, 3:00 AM ESTMesoscale DiscussionSPCBarry, Clinton, Eaton, Genesee, Gratiot, Ingham and 6 more4 hr
Feb 27, 3:50 PM ESTMesoscale DiscussionSPCBerrien115 min
Feb 27, 9:28 PM ESTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 9 more62 min
Feb 27, 11:44 PM ESTMesoscale DiscussionSPCBarry, Calhoun, Clinton, Eaton, Hillsdale, Ingham and 6 more2 hr
Feb 28, 2:13 AM ESTMesoscale DiscussionSPCLapeer, Macomb, Oakland, Saint Clair, Wayne2 hr
Mar 26, 2:08 PM EDTMesoscale DiscussionSPCArenac, Bay, Branch, Calhoun, Clare, Clinton and 30 more3 hr
Apr 2, 4:49 PM EDTMesoscale DiscussionSPCAlger, Delta, Dickinson, Iron, Luce, Mackinac and 2 more5 hr
Apr 17, 10:40 AM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Kalamazoo, Saint Joseph, Van Buren65 min
Apr 17, 11:25 AM EDTMesoscale DiscussionSPCBarry, Bay, Branch, Calhoun, Clinton, Eaton and 22 more95 min
Apr 17, 2:37 PM EDTMesoscale DiscussionSPCArenac, Bay, Clinton, Genesee, Gladwin, Gratiot and 17 more83 min
Apr 23, 3:52 PM EDTMesoscale DiscussionSPCAllegan, Arenac, Barry, Bay, Clare, Clinton and 24 more113 min
Apr 27, 9:40 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Barry, Bay, Clare and 29 more95 min
Apr 29, 1:58 PM EDTMesoscale DiscussionSPCHuron, Tuscola2 hr
May 2, 4:07 PM EDTMesoscale DiscussionSPCBerrien113 min
May 7, 1:14 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Kalamazoo, Saint Joseph, Van Buren2 hr
May 7, 3:53 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Kalamazoo, Saint Joseph, Van Buren67 min
May 7, 4:33 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Eaton, Hillsdale, Jackson and 1 more87 min
May 7, 6:46 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Clinton, Eaton, Genesee and 10 more89 min
May 18, 4:03 PM EDTMesoscale DiscussionSPCGogebic, Ontonagon117 min
May 18, 6:46 PM EDTMesoscale DiscussionSPCDickinson, Iron119 min
May 20, 1:37 PM EDTMesoscale DiscussionSPCGenesee, Lapeer, Saint Clair, Sanilac, Tuscola113 min
May 20, 4:21 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Calhoun, Cass, Clare and 24 more114 min
May 20, 7:49 PM EDTMesoscale DiscussionSPCBarry, Calhoun, Clare, Clinton, Eaton, Gladwin and 10 more86 min
May 22, 12:45 AM EDTMesoscale DiscussionSPCAlger, Benzie, Charlevoix, Delta, Emmet, Leelanau and 4 more2 hr
Jun 5, 11:38 AM EDTMesoscale DiscussionSPCLenawee, Monroe, Wayne3 hr
Jun 13, 12:55 PM EDTMesoscale DiscussionSPCAlger, Baraga, Delta, Dickinson, Iron, Luce and 3 more2 hr
Jun 13, 2:02 PM EDTMesoscale DiscussionSPCAllegan, Arenac, Barry, Bay, Berrien, Branch and 32 more118 min
Jun 13, 5:46 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 7 more89 min
Jun 16, 11:08 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Cass, Clinton, Eaton and 6 more67 min
Jun 17, 8:45 AM EDTMesoscale DiscussionSPCDickinson, Iron90 min
Jun 17, 12:28 PM EDTMesoscale DiscussionSPCAlger, Delta, Dickinson, Marquette, Menominee, Schoolcraft92 min
Jun 19, 1:47 PM EDTMesoscale DiscussionSPCHillsdale, Lenawee, Macomb, Monroe, Oakland, Washtenaw and 1 more88 min
Jun 20, 12:17 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Ingham, Jackson, Lenawee, Livingston and 6 more118 min
Jun 21, 1:57 PM EDTMesoscale DiscussionSPCBarry, Calhoun, Clare, Clinton, Eaton, Genesee and 26 more93 min
Jun 22, 4:20 PM EDTMesoscale DiscussionSPCArenac, Gladwin55 min
Jun 22, 11:43 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Van Buren2 hr
Jun 25, 5:09 AM EDTMesoscale DiscussionSPCBenzie, Kent, Lake, Manistee, Mason, Muskegon and 3 more96 min
Jun 25, 5:37 AM EDTMesoscale DiscussionSPCBerrien, Branch, Calhoun, Cass, Hillsdale, Jackson and 6 more113 min
Jun 25, 7:28 AM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 15 more92 min
Jun 29, 2:14 PM EDTMesoscale DiscussionSPCAlger, Antrim, Benzie, Charlevoix, Cheboygan, Chippewa and 16 more91 min
Jul 5, 2:47 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Barry, Bay and 30 more58 min
Jul 14, 10:08 AM EDTMesoscale DiscussionSPCBerrien, Branch, Cass, Saint Joseph2 hr
Jul 14, 10:36 PM EDTMesoscale DiscussionSPCBerrien, Cass, Van Buren54 min
Jul 15, 1:54 AM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 6 more2 hr
Jul 15, 4:06 PM EDTMesoscale DiscussionSPCGogebic, Houghton, Iron, Ontonagon114 min
Jul 15, 7:06 PM EDTMesoscale DiscussionSPCBerrien114 min
Jul 15, 11:13 PM EDTMesoscale DiscussionSPCBerrien2 hr
Jul 16, 12:11 AM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Eaton, Hillsdale, Ingham and 9 more2 hr
Jul 16, 1:38 AM EDTMesoscale DiscussionSPCBranch, Calhoun, Hillsdale, Jackson, Lenawee, Monroe and 1 more2 hr
Aug 6, 3:26 AM EDTMesoscale DiscussionSPCAllegan, Van Buren2 hr
Aug 6, 7:31 AM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Eaton and 11 more119 min
Aug 27, 12:11 AM EDTMesoscale DiscussionSPCDickinson, Iron, Menominee64 min
Aug 27, 12:25 PM EDTMesoscale DiscussionSPCAllegan, Antrim, Benzie, Berrien, Clare, Grand Traverse and 15 more3 hr
Aug 27, 3:46 PM EDTMesoscale DiscussionSPCArenac, Barry, Bay, Calhoun, Clinton, Eaton and 22 more119 min
Aug 27, 4:56 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Lenawee, Monroe, Saint Joseph2 hr
Aug 27, 5:47 PM EDTMesoscale DiscussionSPCBerrien88 min
Aug 27, 7:24 PM EDTMesoscale DiscussionSPCBerrien96 min
Aug 27, 9:29 PM EDTMesoscale DiscussionSPCBerrien, Cass91 min
Aug 30, 2:25 PM EDTMesoscale DiscussionSPCBay, Branch, Calhoun, Clinton, Eaton, Genesee and 18 more95 min
Aug 30, 6:51 PM EDTMesoscale DiscussionSPCHillsdale, Huron, Lapeer, Lenawee, Livingston, Macomb and 6 more114 min
Sep 24, 2:10 PM EDTMesoscale DiscussionSPCBerrien, Branch, Cass, Hillsdale, Kalamazoo, Saint Joseph and 1 more2 hr
Oct 5, 8:06 PM EDTMesoscale DiscussionSPCBaraga, Dickinson, Gogebic, Iron, Menominee84 min
Oct 12, 4:52 PM EDTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Cass, Eaton, Kalamazoo and 2 more83 min
Dec 4, 4:40 PM ESTMesoscale DiscussionSPCBarry, Clinton, Eaton, Genesee, Gratiot, Ingham and 15 more3 hr

By county

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

42 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 27, 20246mesoscale discussions
  2. May 7, 20244mesoscale discussions
  3. July 15, 20244mesoscale discussions
  4. February 28, 20243mesoscale discussions
  5. April 17, 20243mesoscale discussions
  6. May 20, 20243mesoscale discussions
  7. June 13, 20243mesoscale discussions
  8. June 17, 20243mesoscale discussions
  9. June 25, 20243mesoscale discussions
  10. July 16, 20243mesoscale discussions
  11. May 18, 20242mesoscale discussions
  12. August 6, 20242mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20232025

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.