Alert archive / Michigan / Mesoscale Discussions

Mesoscale Discussions in Michigan, 2018

55 mesoscale discussions in 2018. 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 2018. Tap one for its archive.

Mesoscale Discussions
55
Busiest month
July11 mesoscale discussions
Busiest day
July 1, 20186 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, 3:04 AM ESTMesoscale DiscussionSPCBarry, Branch, Calhoun, Cass, Clinton, Eaton and 21 more6 hr
Jan 22, 4:15 PM ESTMesoscale DiscussionSPCBaraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more6 hr
Feb 9, 4:08 AM ESTMesoscale DiscussionSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 11 more6 hr
Mar 1, 12:32 PM ESTMesoscale DiscussionSPCBranch, Calhoun, Eaton, Hillsdale, Ingham, Jackson and 7 more6 hr
Mar 31, 6:25 AM EDTMesoscale DiscussionSPCAlger, Charlevoix, Delta, Dickinson, Gogebic, Iron and 4 more6 hr
Apr 15, 12:14 AM EDTMesoscale DiscussionSPCAntrim, Arenac, Barry, Bay, Clare, Clinton and 30 more6 hr
May 2, 6:29 PM EDTMesoscale DiscussionSPCAllegan, Barry, Berrien, Cass, Kalamazoo, Saint Joseph and 1 more91 min
May 14, 3:40 AM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Saint Joseph, Van Buren2 hr
May 14, 7:36 PM EDTMesoscale DiscussionSPCBerrien, Cass, Van Buren84 min
May 26, 12:43 PM EDTMesoscale DiscussionSPCAlger, Baraga, Delta, Dickinson, Iron, Marquette and 1 more3 hr
May 27, 3:12 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Bay, Clare, Clinton and 16 more3 hr
May 30, 4:35 PM EDTMesoscale DiscussionSPCBarry, Branch, Calhoun, Eaton, Hillsdale, Ingham and 7 more115 min
May 31, 3:00 PM EDTMesoscale DiscussionSPCBranch, Saint Joseph90 min
Jun 12, 7:56 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Iron, Menominee3 hr
Jun 15, 3:41 AM EDTMesoscale DiscussionSPCGogebic3 hr
Jun 17, 1:12 PM EDTMesoscale DiscussionSPCGogebic, Iron93 min
Jun 17, 4:08 PM EDTMesoscale DiscussionSPCDickinson, Gogebic, Iron, Menominee97 min
Jun 17, 7:29 PM EDTMesoscale DiscussionSPCBaraga, Dickinson, Iron, Marquette, Menominee2 hr
Jun 29, 5:14 AM EDTMesoscale DiscussionSPCGogebic, Ontonagon2 hr
Jun 29, 12:22 PM EDTMesoscale DiscussionSPCAlger, Baraga, Charlevoix, Delta, Dickinson, Emmet and 7 more113 min
Jun 30, 4:21 AM EDTMesoscale DiscussionSPCBaraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw and 2 more114 min
Jun 30, 5:23 PM EDTMesoscale DiscussionSPCBaraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 2 more67 min
Jun 30, 9:05 PM EDTMesoscale DiscussionSPCAlger, Delta, Dickinson, Gogebic, Iron, Menominee85 min
Jul 1, 12:37 PM EDTMesoscale DiscussionSPCDelta, Dickinson, Iron, Menominee83 min
Jul 1, 2:37 PM EDTMesoscale DiscussionSPCAlger, Baraga, Delta, Dickinson, Iron, Luce and 3 more53 min
Jul 1, 4:18 PM EDTMesoscale DiscussionSPCDelta, Luce, Mackinac, Menominee, Schoolcraft87 min
Jul 1, 6:05 PM EDTMesoscale DiscussionSPCAntrim, Benzie, Charlevoix, Cheboygan, Chippewa, Clare and 16 more2 hr
Jul 1, 7:51 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Van Buren114 min
Jul 1, 9:04 PM EDTMesoscale DiscussionSPCAntrim, Barry, Clare, Clinton, Crawford, Eaton and 18 more116 min
Jul 4, 10:56 AM EDTMesoscale DiscussionSPCGogebic, Ontonagon2 hr
Jul 16, 1:32 PM EDTMesoscale DiscussionSPCAlcona, Arenac, Barry, Bay, Branch, Calhoun and 31 more2 hr
Jul 20, 1:43 PM EDTMesoscale DiscussionSPCBranch, Cass, Kalamazoo, Saint Joseph92 min
Jul 26, 1:21 PM EDTMesoscale DiscussionSPCLenawee, Macomb, Monroe, Wayne114 min
Aug 5, 4:57 PM EDTMesoscale DiscussionSPCBaraga, Delta, Dickinson, Gogebic, Iron, Marquette and 2 more93 min
Aug 6, 1:26 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Eaton, Hillsdale, Ingham, Jackson and 9 more3 hr
Aug 8, 6:02 PM EDTMesoscale DiscussionSPCBaraga, Gogebic, Houghton, Iron, Keweenaw, Ontonagon118 min
Aug 26, 10:32 PM EDTMesoscale DiscussionSPCBarry, Bay, Clinton, Eaton, Genesee, Gratiot and 13 more88 min
Aug 27, 6:27 PM EDTMesoscale DiscussionSPCAlger, Baraga, Delta, Dickinson, Gogebic, Houghton and 8 more2 hr
Aug 27, 11:34 PM EDTMesoscale DiscussionSPCAntrim, Benzie, Charlevoix, Cheboygan, Crawford, Emmet and 12 more116 min
Aug 28, 4:24 PM EDTMesoscale DiscussionSPCBenzie, Lake, Manistee, Mason, Mecosta, Missaukee and 7 more96 min
Aug 28, 8:20 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Barry, Bay and 34 more55 min
Aug 28, 10:54 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Cass, Kalamazoo, Saint Joseph, Van Buren66 min
Sep 1, 1:53 AM EDTMesoscale DiscussionSPCBaraga, Gogebic, Houghton, Keweenaw, Marquette, Ontonagon2 hr
Sep 1, 6:57 PM EDTMesoscale DiscussionSPCAllegan, Barry, Calhoun, Clinton, Eaton, Genesee and 14 more63 min
Sep 2, 8:27 PM EDTMesoscale DiscussionSPCArenac, Bay, Clare, Crawford, Gladwin, Isabella and 11 more63 min
Sep 20, 4:16 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Branch, Calhoun, Cass, Hillsdale and 3 more89 min
Sep 21, 2:29 AM EDTMesoscale DiscussionSPCBenzie, Charlevoix, Emmet, Leelanau, Mackinac, Manistee2 hr
Sep 21, 1:14 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Genesee, Hillsdale, Huron, Ingham and 12 more91 min
Sep 25, 6:21 PM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Clinton and 25 more114 min
Oct 3, 3:31 PM EDTMesoscale DiscussionSPCDickinson, Gogebic, Iron, Menominee89 min
Oct 3, 10:22 PM EDTMesoscale DiscussionSPCAntrim, Arenac, Bay, Benzie, Charlevoix, Cheboygan and 25 more113 min
Oct 4, 12:46 AM EDTMesoscale DiscussionSPCClare, Gladwin, Isabella, Lake, Mason, Mecosta and 4 more119 min
Oct 6, 5:35 PM EDTMesoscale DiscussionSPCLenawee, Monroe85 min
Oct 20, 12:08 PM EDTMesoscale DiscussionSPCCalhoun, Clinton, Eaton, Hillsdale, Ingham, Jackson and 8 more2 hr
Dec 31, 12:50 PM ESTMesoscale DiscussionSPCAlpena, Antrim, Arenac, Benzie, Charlevoix, Cheboygan and 25 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. July 1, 20186mesoscale discussions
  2. June 17, 20183mesoscale discussions
  3. May 14, 20182mesoscale discussions
  4. June 29, 20182mesoscale discussions
  5. June 30, 20182mesoscale discussions
  6. August 27, 20182mesoscale discussions
  7. August 28, 20182mesoscale discussions
  8. August 29, 20182mesoscale discussions
  9. September 1, 20182mesoscale discussions
  10. September 21, 20182mesoscale discussions
  11. October 4, 20182mesoscale discussions
  12. January 12, 20181mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20172019

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.