Alert archive / Michigan / Mesoscale Discussions

Mesoscale Discussions in Michigan, 2023

63 mesoscale discussions in 2023. 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 2023. Tap one for its archive.

Mesoscale Discussions
63
Busiest month
July25 mesoscale discussions
Busiest day
June 25, 20235 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 19, 7:48 AM ESTMesoscale DiscussionSPCAlger, Chippewa, Delta, Dickinson, Iron, Luce and 3 more5 hr
Jan 25, 10:14 AM ESTMesoscale DiscussionSPCBranch, Hillsdale, Jackson, Lenawee, Macomb, Monroe and 3 more6 hr
Jan 28, 9:28 PM ESTMesoscale DiscussionSPCArenac, Bay, Clare, Gladwin, Gratiot, Huron and 14 more6 hr
Feb 2, 12:36 PM ESTMesoscale DiscussionSPCAlcona, Alpena, Crawford, Iosco, Kalkaska, Missaukee and 6 more114 min
Feb 22, 9:46 AM ESTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Clinton, Eaton, Genesee and 18 more5 hr
Feb 22, 4:27 PM ESTMesoscale DiscussionSPCAlcona, Allegan, Arenac, Barry, Bay, Benzie and 52 more4 hr
Feb 23, 6:06 AM ESTMesoscale DiscussionSPCAlger, Baraga, Delta, Dickinson, Gogebic, Houghton and 5 more6 hr
Mar 3, 5:25 PM ESTMesoscale DiscussionSPCBerrien, Branch, Calhoun, Cass, Eaton, Hillsdale and 11 more4 hr
Mar 25, 9:54 AM EDTMesoscale DiscussionSPCAntrim, Benzie, Charlevoix, Cheboygan, Chippewa, Crawford and 18 more4 hr
Mar 30, 11:04 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Gogebic, Iron, Menominee26 min
Mar 31, 7:20 PM EDTMesoscale DiscussionSPCBerrien115 min
Apr 4, 4:22 PM EDTMesoscale DiscussionSPCAllegan, Barry, Cass, Kalamazoo, Van Buren113 min
Apr 4, 7:35 PM EDTMesoscale DiscussionSPCBarry, Eaton, Ingham, Livingston, Shiawassee55 min
Apr 5, 7:09 AM EDTMesoscale DiscussionSPCAllegan, Arenac, Barry, Bay, Berrien, Branch and 33 more2 hr
Apr 5, 10:57 AM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Cass, Clinton, Eaton and 21 more93 min
Apr 16, 1:23 PM EDTMesoscale DiscussionSPCArenac, Bay, Genesee, Gladwin, Huron, Iosco and 15 more2 hr
Apr 16, 11:45 PM EDTMesoscale DiscussionSPCGogebic6 hr
Apr 17, 5:48 AM EDTMesoscale DiscussionSPCGogebic3 hr
Jun 15, 4:21 PM EDTMesoscale DiscussionSPCHillsdale, Jackson, Lenawee, Livingston, Macomb, Monroe and 3 more114 min
Jun 25, 12:56 PM EDTMesoscale DiscussionSPCBranch, Cass, Saint Joseph2 hr
Jun 25, 1:10 PM EDTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Clare, Clinton, Eaton and 15 more2 hr
Jun 25, 3:46 PM EDTMesoscale DiscussionSPCLenawee, Monroe89 min
Jun 25, 4:18 PM EDTMesoscale DiscussionSPCBranch87 min
Jun 25, 4:48 PM EDTMesoscale DiscussionSPCArenac, Bay, Clare, Clinton, Crawford, Eaton and 25 more87 min
Jul 4, 12:38 PM EDTMesoscale DiscussionSPCGogebic, Iron2 hr
Jul 10, 4:42 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Iron, Menominee2 hr
Jul 11, 1:58 PM EDTMesoscale DiscussionSPCGenesee, Huron, Lapeer, Macomb, Saginaw, Saint Clair and 2 more92 min
Jul 12, 8:02 PM EDTMesoscale DiscussionSPCBerrien, Cass58 min
Jul 12, 10:46 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Cass, Eaton, Hillsdale and 10 more59 min
Jul 13, 12:59 AM EDTMesoscale DiscussionSPCLenawee, Macomb, Monroe, Oakland, Washtenaw, Wayne91 min
Jul 14, 2:32 PM EDTMesoscale DiscussionSPCArenac, Barry, Bay, Branch, Calhoun, Clare and 35 more2 hr
Jul 14, 10:29 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Cass, Ionia and 5 more91 min
Jul 20, 10:38 AM EDTMesoscale DiscussionSPCAllegan, Antrim, Arenac, Barry, Bay, Branch and 39 more97 min
Jul 20, 2:15 PM EDTMesoscale DiscussionSPCBranch, Cass, Saint Joseph90 min
Jul 20, 2:51 PM EDTMesoscale DiscussionSPCGenesee, Hillsdale, Ingham, Jackson, Lapeer, Lenawee and 7 more84 min
Jul 20, 5:01 PM EDTMesoscale DiscussionSPCHillsdale, Lenawee, Monroe89 min
Jul 26, 9:45 AM EDTMesoscale DiscussionSPCAllegan, Barry, Cass, Ionia, Kalamazoo, Kent and 9 more2 hr
Jul 26, 12:38 PM EDTMesoscale DiscussionSPCBarry, Berrien, Branch, Calhoun, Cass, Eaton and 5 more97 min
Jul 26, 1:45 PM EDTMesoscale DiscussionSPCGenesee, Huron, Lapeer, Lenawee, Livingston, Macomb and 7 more90 min
Jul 26, 3:14 PM EDTMesoscale DiscussionSPCLivingston, Monroe, Oakland, Wayne91 min
Jul 26, 4:57 PM EDTMesoscale DiscussionSPCBerrien63 min
Jul 26, 8:02 PM EDTMesoscale DiscussionSPCBranch, Cass, Hillsdale, Lenawee, Monroe, Saint Joseph88 min
Jul 27, 2:47 PM EDTMesoscale DiscussionSPCGogebic58 min
Jul 27, 5:36 PM EDTMesoscale DiscussionSPCDickinson, Gogebic, Iron, Menominee, Ontonagon84 min
Jul 27, 8:05 PM EDTMesoscale DiscussionSPCDickinson, Iron, Menominee85 min
Jul 27, 10:30 PM EDTMesoscale DiscussionSPCDelta, Menominee90 min
Jul 28, 6:59 AM EDTMesoscale DiscussionSPCBerrien, Branch, Cass, Saint Joseph2 hr
Jul 28, 10:44 PM EDTMesoscale DiscussionSPCAllegan, Barry, Cass, Kalamazoo, Ottawa, Saint Joseph and 1 more2 hr
Jul 29, 1:57 AM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Eaton and 7 more2 hr
Aug 3, 5:49 PM EDTMesoscale DiscussionSPCArenac, Bay, Clare, Clinton, Crawford, Eaton and 31 more116 min
Aug 11, 3:14 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Clinton, Eaton, Genesee and 18 more2 hr
Aug 11, 8:16 PM EDTMesoscale DiscussionSPCGenesee, Jackson, Lapeer, Lenawee, Livingston, Macomb and 6 more89 min
Aug 16, 8:30 PM EDTMesoscale DiscussionSPCGogebic2 hr
Aug 17, 5:41 AM EDTMesoscale DiscussionSPCAllegan, Berrien, Muskegon, Ottawa, Van Buren3 hr
Aug 22, 7:08 AM EDTMesoscale DiscussionSPCDickinson, Gogebic, Iron, Menominee, Ontonagon2 hr
Aug 23, 6:14 AM EDTMesoscale DiscussionSPCAntrim, Bay, Clare, Clinton, Crawford, Eaton and 23 more2 hr
Aug 24, 12:28 AM EDTMesoscale DiscussionSPCBay, Clinton, Genesee, Gladwin, Gratiot, Isabella and 10 more2 hr
Aug 24, 4:03 AM EDTMesoscale DiscussionSPCBranch, Hillsdale, Jackson, Lenawee, Washtenaw117 min
Aug 24, 4:44 PM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Clinton and 18 more3 hr
Aug 24, 8:08 PM EDTMesoscale DiscussionSPCAllegan, Barry, Bay, Branch, Calhoun, Cass and 27 more97 min
Aug 24, 9:33 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Lenawee, Monroe87 min
Aug 24, 11:42 PM EDTMesoscale DiscussionSPCLenawee, Monroe2 hr
Aug 25, 2:32 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Gogebic, Iron, Menominee118 min

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. June 25, 20235mesoscale discussions
  2. July 26, 20235mesoscale discussions
  3. July 20, 20234mesoscale discussions
  4. August 25, 20234mesoscale discussions
  5. July 13, 20233mesoscale discussions
  6. July 27, 20233mesoscale discussions
  7. July 28, 20233mesoscale discussions
  8. August 24, 20233mesoscale discussions
  9. February 22, 20232mesoscale discussions
  10. March 31, 20232mesoscale discussions
  11. April 4, 20232mesoscale discussions
  12. April 5, 20232mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.