Alert archive / Michigan / Mesoscale Discussions

Mesoscale Discussions in Michigan, 2015

70 mesoscale discussions in 2015. 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 2015. Tap one for its archive.

Mesoscale Discussions
70
Busiest month
June16 mesoscale discussions
Busiest day
August 2, 20157 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
Feb 1, 8:43 AM ESTMesoscale DiscussionSPCBerrien, Branch, Cass, Saint Joseph6 hr
Feb 1, 2:35 PM ESTMesoscale DiscussionSPCBarry, Branch, Calhoun, Eaton, Hillsdale, Ingham and 10 more6 hr
Mar 23, 5:58 AM EDTMesoscale DiscussionSPCBerrien5 hr
Apr 9, 6:20 PM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Eaton and 10 more85 min
Apr 9, 9:27 PM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Clare and 21 more93 min
Apr 10, 12:56 AM EDTMesoscale DiscussionSPCBarry, Bay, Calhoun, Clinton, Eaton, Genesee and 15 more94 min
Apr 10, 2:54 AM EDTMesoscale DiscussionSPCHillsdale, Ingham, Jackson, Lapeer, Lenawee, Livingston and 5 more66 min
May 8, 1:59 PM EDTMesoscale DiscussionSPCBerrien3 hr
May 11, 12:48 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Clinton, Eaton, Genesee, Hillsdale and 14 more2 hr
May 11, 3:46 PM EDTMesoscale DiscussionSPCArenac, Bay, Clare, Gladwin, Isabella, Midland and 2 more119 min
May 11, 4:39 PM EDTMesoscale DiscussionSPCGenesee, Lapeer, Lenawee, Livingston, Macomb, Monroe and 6 more66 min
May 26, 12:22 PM EDTMesoscale DiscussionSPCAlcona, Allegan, Antrim, Arenac, Benzie, Charlevoix and 33 more113 min
May 26, 1:24 PM EDTMesoscale DiscussionSPCBerrien, Branch, Calhoun, Cass, Hillsdale, Kalamazoo and 1 more2 hr
May 26, 4:41 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Barry, Bay and 47 more2 hr
May 26, 4:53 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Barry, Bay and 47 more2 hr
May 27, 12:09 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Cass, Clinton, Eaton and 19 more96 min
May 27, 3:26 PM EDTMesoscale DiscussionSPCHillsdale, Lenawee, Macomb, Monroe, Oakland, Saint Clair and 2 more2 hr
Jun 8, 2:06 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Bay, Clare, Crawford and 21 more114 min
Jun 8, 4:32 PM EDTMesoscale DiscussionSPCBerrien, Cass, Saint Joseph, Van Buren88 min
Jun 9, 7:32 PM EDTMesoscale DiscussionSPCGogebic88 min
Jun 10, 4:51 PM EDTMesoscale DiscussionSPCBerrien, Branch, Cass, Hillsdale, Lenawee, Monroe and 1 more114 min
Jun 11, 4:52 PM EDTMesoscale DiscussionSPCBerrien, Cass, Saint Joseph113 min
Jun 13, 3:42 PM EDTMesoscale DiscussionSPCBerrien, Cass2 hr
Jun 13, 7:26 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Eaton, Kalamazoo64 min
Jun 14, 1:20 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Hillsdale, Jackson, Lenawee, Monroe and 3 more115 min
Jun 14, 4:14 PM EDTMesoscale DiscussionSPCHillsdale, Lenawee, Monroe, Wayne2 hr
Jun 18, 3:28 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Jackson, Lenawee, Livingston, Macomb and 4 more2 hr
Jun 22, 10:14 AM EDTMesoscale DiscussionSPCBerrien61 min
Jun 22, 12:00 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 20 more2 hr
Jun 22, 3:09 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Lenawee, Saint Joseph96 min
Jun 22, 8:31 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 24 more59 min
Jun 22, 11:00 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 23 more60 min
Jun 23, 2:43 AM EDTMesoscale DiscussionSPCMonroe2 hr
Jul 12, 11:05 AM EDTMesoscale DiscussionSPCGogebic85 min
Jul 13, 8:19 AM EDTMesoscale DiscussionSPCBerrien86 min
Jul 13, 7:59 PM EDTMesoscale DiscussionSPCBerrien91 min
Jul 13, 11:22 PM EDTMesoscale DiscussionSPCBerrien53 min
Jul 13, 11:43 PM EDTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Cass, Ionia, Kalamazoo and 6 more62 min
Jul 18, 7:37 AM EDTMesoscale DiscussionSPCBenzie, Lake, Manistee, Mason, Muskegon, Newaygo and 3 more53 min
Jul 18, 4:21 PM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Clinton and 11 more84 min
Jul 18, 6:43 PM EDTMesoscale DiscussionSPCBarry, Berrien, Branch, Calhoun, Cass, Eaton and 8 more92 min
Jul 18, 8:03 PM EDTMesoscale DiscussionSPCBranch, Hillsdale57 min
Jul 25, 3:21 PM EDTMesoscale DiscussionSPCClinton, Eaton, Genesee, Gratiot, Ingham, Ionia and 11 more114 min
Jul 25, 5:52 PM EDTMesoscale DiscussionSPCBranch, Hillsdale2 hr
Jul 29, 2:28 PM EDTMesoscale DiscussionSPCGenesee, Huron, Lapeer, Lenawee, Livingston, Macomb and 7 more3 hr
Aug 2, 5:21 AM EDTMesoscale DiscussionSPCGogebic, Iron, Ontonagon2 hr
Aug 2, 8:51 AM EDTMesoscale DiscussionSPCAntrim, Benzie, Charlevoix, Crawford, Delta, Dickinson and 13 more2 hr
Aug 2, 12:49 PM EDTMesoscale DiscussionSPCCrawford, Iosco, Missaukee, Montmorency, Ogemaw, Oscoda and 2 more56 min
Aug 2, 1:09 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Iron, Menominee2 hr
Aug 2, 2:56 PM EDTMesoscale DiscussionSPCClinton, Genesee, Ingham, Lapeer, Livingston, Macomb and 6 more64 min
Aug 2, 3:00 PM EDTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 13 more2 hr
Aug 2, 6:08 PM EDTMesoscale DiscussionSPCBay, Clinton, Genesee, Gladwin, Gratiot, Ingham and 15 more97 min
Aug 2, 9:02 PM EDTMesoscale DiscussionSPCAllegan, Barry, Bay, Berrien, Branch, Calhoun and 30 more118 min
Aug 13, 3:24 PM EDTMesoscale DiscussionSPCDelta, Menominee2 hr
Aug 14, 1:02 PM EDTMesoscale DiscussionSPCAntrim, Benzie, Charlevoix, Delta, Dickinson, Emmet and 6 more58 min
Aug 14, 4:09 PM EDTMesoscale DiscussionSPCArenac, Bay, Benzie, Clare, Crawford, Gladwin and 20 more66 min
Aug 19, 2:14 PM EDTMesoscale DiscussionSPCAlger, Baraga, Charlevoix, Chippewa, Delta, Dickinson and 6 more2 hr
Aug 19, 2:34 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Bay, Cheboygan and 34 more116 min
Aug 23, 1:12 PM EDTMesoscale DiscussionSPCArenac, Barry, Bay, Branch, Calhoun, Cass and 29 more93 min
Aug 23, 6:07 PM EDTMesoscale DiscussionSPCLenawee, Macomb, Monroe, Oakland, Saint Clair, Wayne113 min
Sep 8, 1:07 PM EDTMesoscale DiscussionSPCAllegan, Barry, Bay, Calhoun, Clinton, Eaton and 16 more2 hr
Sep 8, 2:29 PM EDTMesoscale DiscussionSPCBerrien, Cass91 min
Sep 8, 3:59 PM EDTMesoscale DiscussionSPCAlcona, Arenac, Bay, Clinton, Genesee, Gratiot and 20 more91 min
Oct 24, 3:09 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Clinton, Eaton, Genesee, Hillsdale and 14 more3 hr
Nov 11, 10:47 PM ESTMesoscale DiscussionSPCAllegan, Berrien, Cass, Van Buren88 min
Nov 21, 9:36 AM ESTMesoscale DiscussionSPCBarry, Berrien, Branch, Calhoun, Cass, Clinton and 15 more5 hr
Dec 23, 2:55 PM ESTMesoscale DiscussionSPCBranch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo and 5 more95 min
Dec 28, 6:26 AM ESTMesoscale DiscussionSPCBerrien, Cass, Saint Joseph4 hr
Dec 28, 12:04 PM ESTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 17 more6 hr
Dec 28, 7:00 PM ESTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Bay, Benzie and 43 more5 hr

By county

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

41 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 2, 20157mesoscale discussions
  2. May 26, 20154mesoscale discussions
  3. April 10, 20153mesoscale discussions
  4. May 11, 20153mesoscale discussions
  5. June 22, 20153mesoscale discussions
  6. June 23, 20153mesoscale discussions
  7. July 18, 20153mesoscale discussions
  8. September 8, 20153mesoscale discussions
  9. February 1, 20152mesoscale discussions
  10. May 27, 20152mesoscale discussions
  11. June 8, 20152mesoscale discussions
  12. June 13, 20152mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20142016

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.