Alert archive / Michigan / Mesoscale Discussions
Mesoscale Discussions in Michigan, 2019
87 mesoscale discussions in 2019. 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 2019. Tap one for its archive.
- Mesoscale Discussions
- 87
- Busiest month
- July21 mesoscale discussions
- Busiest day
- July 20, 20195 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 10:41 AM EST | Mesoscale Discussion | SPC | Alger, Chippewa, Delta, Luce, Mackinac, Schoolcraft | 5 hr |
| Jan 19, 11:09 AM EST | Mesoscale Discussion | SPC | Branch, Hillsdale, Jackson, Lenawee, Monroe, Saint Joseph and 2 more | 3 hr |
| Jan 19, 2:34 PM EST | Mesoscale Discussion | SPC | Hillsdale, Lenawee, Monroe | 4 hr |
| Jan 22, 7:00 PM EST | Mesoscale Discussion | SPC | Berrien, Branch, Calhoun, Cass, Hillsdale, Ingham and 12 more | 6 hr |
| Jan 28, 3:42 AM EST | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Cass, Ionia, Kalamazoo and 11 more | 4 hr |
| Jan 28, 8:18 AM EST | Mesoscale Discussion | SPC | Allegan, Antrim, Arenac, Barry, Bay, Branch and 43 more | 4 hr |
| Feb 4, 2:51 AM EST | Mesoscale Discussion | SPC | Gogebic | 5 hr |
| Feb 4, 8:06 AM EST | Mesoscale Discussion | SPC | Alger, Delta, Dickinson, Iron, Luce, Mackinac and 1 more | 4 hr |
| Feb 5, 7:24 PM EST | Mesoscale Discussion | SPC | Alger, Antrim, Benzie, Charlevoix, Cheboygan, Crawford and 15 more | 6 hr |
| Feb 5, 9:54 PM EST | Mesoscale Discussion | SPC | Allegan, Arenac, Barry, Bay, Branch, Calhoun and 39 more | 6 hr |
| Feb 7, 12:35 PM EST | Mesoscale Discussion | SPC | Alpena, Antrim, Benzie, Charlevoix, Cheboygan, Clare and 19 more | 3 hr |
| Feb 12, 2:40 AM EST | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 24 more | 6 hr |
| Feb 20, 10:09 AM EST | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Iron, Ontonagon | 6 hr |
| Feb 23, 9:52 PM EST | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more | 5 hr |
| Mar 9, 8:10 PM EST | Mesoscale Discussion | SPC | Clare, Clinton, Eaton, Genesee, Gratiot, Ingham and 19 more | 4 hr |
| Mar 14, 2:51 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Cass, Kalamazoo, Kent and 2 more | 54 min |
| Mar 14, 5:54 PM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Clinton, Eaton, Genesee, Gratiot and 14 more | 66 min |
| Mar 14, 7:22 PM EDT | Mesoscale Discussion | SPC | Genesee, Jackson, Lapeer, Livingston, Oakland, Washtenaw | 83 min |
| Mar 14, 8:48 PM EDT | Mesoscale Discussion | SPC | Macomb, Monroe, Oakland, Saint Clair, Wayne | 57 min |
| May 19, 4:27 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 19 more | 63 min |
| May 19, 7:00 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Branch, Calhoun, Cass, Eaton and 6 more | 2 hr |
| May 23, 4:50 AM EDT | Mesoscale Discussion | SPC | Branch, Cass, Hillsdale, Saint Joseph | 55 min |
| May 27, 1:50 PM EDT | Mesoscale Discussion | SPC | Berrien | 85 min |
| May 27, 4:57 PM EDT | Mesoscale Discussion | SPC | Berrien, Cass | 93 min |
| May 27, 6:30 PM EDT | Mesoscale Discussion | SPC | Allegan, Berrien, Branch, Cass, Hillsdale, Kalamazoo and 2 more | 90 min |
| May 28, 12:16 PM EDT | Mesoscale Discussion | SPC | Lenawee | 119 min |
| Jun 1, 11:49 AM EDT | Mesoscale Discussion | SPC | Barry, Branch, Calhoun, Eaton, Hillsdale, Ingham and 8 more | 116 min |
| Jun 1, 3:34 PM EDT | Mesoscale Discussion | SPC | Macomb, Monroe, Wayne | 116 min |
| Jun 1, 4:58 PM EDT | Mesoscale Discussion | SPC | Branch, Cass, Hillsdale, Saint Joseph | 2 hr |
| Jun 1, 6:42 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Calhoun, Clinton, Eaton, Ingham and 6 more | 63 min |
| Jun 5, 1:00 PM EDT | Mesoscale Discussion | SPC | Lenawee, Monroe | 2 hr |
| Jun 25, 2:10 PM EDT | Mesoscale Discussion | SPC | Allegan, Berrien, Cass, Kalamazoo, Van Buren | 2 hr |
| Jun 25, 7:36 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Cass, Kalamazoo, Saint Joseph and 1 more | 54 min |
| Jun 27, 7:17 PM EDT | Mesoscale Discussion | SPC | Berrien | 118 min |
| Jul 2, 3:10 PM EDT | Mesoscale Discussion | SPC | Hillsdale, Lenawee, Monroe | 95 min |
| Jul 2, 3:31 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 7 more | 89 min |
| Jul 2, 5:56 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Calhoun, Clinton, Eaton, Ingham and 8 more | 94 min |
| Jul 6, 2:36 PM EDT | Mesoscale Discussion | SPC | Branch, Hillsdale, Lenawee, Saint Joseph | 2 hr |
| Jul 10, 6:14 PM EDT | Mesoscale Discussion | SPC | Alger, Antrim, Benzie, Charlevoix, Crawford, Delta and 11 more | 2 hr |
| Jul 12, 1:35 PM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Iron, Marquette, Menominee | 85 min |
| Jul 12, 5:58 PM EDT | Mesoscale Discussion | SPC | Dickinson, Iron, Menominee | 92 min |
| Jul 15, 7:10 PM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw and 2 more | 95 min |
| Jul 18, 1:28 PM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Dickinson, Gogebic, Houghton, Iron and 3 more | 3 hr |
| Jul 19, 1:57 PM EDT | Mesoscale Discussion | SPC | Calhoun, Hillsdale, Ingham, Jackson, Lenawee, Livingston and 6 more | 2 hr |
| Jul 19, 7:09 PM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Eaton, Hillsdale, Ingham, Jackson and 5 more | 96 min |
| Jul 19, 10:11 PM EDT | Mesoscale Discussion | SPC | Alpena, Antrim, Arenac, Bay, Benzie, Clare and 21 more | 94 min |
| Jul 20, 1:50 AM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Calhoun, Clare, Clinton, Crawford and 12 more | 55 min |
| Jul 20, 11:08 AM EDT | Mesoscale Discussion | SPC | Barry, Clare, Clinton, Eaton, Gladwin, Gratiot and 14 more | 2 hr |
| Jul 20, 4:44 PM EDT | Mesoscale Discussion | SPC | Allegan, Arenac, Barry, Bay, Branch, Calhoun and 31 more | 2 hr |
| Jul 20, 6:12 PM EDT | Mesoscale Discussion | SPC | Berrien, Branch, Cass, Hillsdale, Lenawee, Saint Joseph | 93 min |
| Jul 26, 7:08 PM EDT | Mesoscale Discussion | SPC | Gogebic, Ontonagon | 2 hr |
| Jul 27, 1:03 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Cheboygan, Chippewa, Crawford, Iosco and 8 more | 117 min |
| Jul 28, 6:13 PM EDT | Mesoscale Discussion | SPC | Genesee, Ingham, Lapeer, Livingston, Macomb, Oakland and 1 more | 62 min |
| Jul 28, 7:35 PM EDT | Mesoscale Discussion | SPC | Gogebic | 85 min |
| Jul 29, 2:11 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Arenac, Bay, Branch, Calhoun and 37 more | 2 hr |
| Aug 5, 10:34 AM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 2 more | 116 min |
| Aug 5, 12:49 PM EDT | Mesoscale Discussion | SPC | Gogebic, Houghton, Ontonagon | 116 min |
| Aug 7, 2:09 PM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Iron and 4 more | 2 hr |
| Aug 16, 5:32 PM EDT | Mesoscale Discussion | SPC | Allegan, Benzie, Berrien, Cass, Lake, Manistee and 6 more | 2 hr |
| Aug 18, 6:44 AM EDT | Mesoscale Discussion | SPC | Allegan, Berrien, Cass, Kalamazoo, Saint Joseph, Van Buren | 91 min |
| Aug 18, 8:40 AM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 12 more | 2 hr |
| Aug 18, 12:47 PM EDT | Mesoscale Discussion | SPC | Arenac, Bay, Clare, Clinton, Eaton, Genesee and 21 more | 88 min |
| Aug 18, 3:02 PM EDT | Mesoscale Discussion | SPC | Hillsdale, Jackson, Lenawee, Livingston, Macomb, Monroe and 3 more | 118 min |
| Aug 18, 6:42 PM EDT | Mesoscale Discussion | SPC | Branch, Hillsdale, Saint Joseph | 93 min |
| Aug 20, 5:50 PM EDT | Mesoscale Discussion | SPC | Lenawee, Livingston, Monroe, Oakland, Washtenaw, Wayne | 2 hr |
| Aug 27, 1:31 PM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 2 more | 119 min |
| Aug 29, 2:50 PM EDT | Mesoscale Discussion | SPC | Antrim, Benzie, Clare, Crawford, Emmet, Grand Traverse and 16 more | 115 min |
| Aug 29, 6:33 PM EDT | Mesoscale Discussion | SPC | Clinton, Gratiot, Ionia, Isabella, Kent, Mecosta and 4 more | 57 min |
| Sep 3, 4:20 PM EDT | Mesoscale Discussion | SPC | Antrim, Cheboygan, Clare, Crawford, Gladwin, Grand Traverse and 15 more | 85 min |
| Sep 3, 10:03 PM EDT | Mesoscale Discussion | SPC | Barry, Berrien, Branch, Calhoun, Cass, Clinton and 16 more | 2 hr |
| Sep 10, 5:58 PM EDT | Mesoscale Discussion | SPC | Barry, Clare, Clinton, Eaton, Genesee, Gratiot and 13 more | 2 hr |
| Sep 11, 1:48 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Branch, Calhoun, Cass, Clinton and 26 more | 117 min |
| Sep 11, 4:33 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Bay, Berrien, Branch, Calhoun and 34 more | 117 min |
| Sep 13, 2:21 PM EDT | Mesoscale Discussion | SPC | Lapeer, Lenawee, Macomb, Monroe, Oakland, Saint Clair and 2 more | 84 min |
| Sep 13, 7:16 PM EDT | Mesoscale Discussion | SPC | Monroe | 89 min |
| Sep 24, 7:52 PM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more | 53 min |
| Sep 24, 10:01 PM EDT | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Iron, Ontonagon | 119 min |
| Sep 24, 11:48 PM EDT | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Iron, Ontonagon | 117 min |
| Oct 1, 11:18 AM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Clinton, Eaton, Genesee, Gratiot and 10 more | 2 hr |
| Oct 1, 10:17 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 17 more | 118 min |
| Nov 11, 11:47 AM EST | Mesoscale Discussion | SPC | Branch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo and 7 more | 4 hr |
| Nov 11, 7:16 PM EST | Mesoscale Discussion | SPC | Allegan, Cass, Van Buren | 6 hr |
| Nov 26, 10:20 PM EST | Mesoscale Discussion | SPC | Gogebic | 6 hr |
| Nov 27, 2:43 AM EST | Mesoscale Discussion | SPC | Alger, Baraga, Dickinson, Gogebic, Houghton, Iron and 3 more | 6 hr |
| Nov 27, 6:30 AM EST | Mesoscale Discussion | SPC | Chippewa, Delta, Luce, Mackinac, Schoolcraft | 4 hr |
| Nov 30, 7:55 PM EST | Mesoscale Discussion | SPC | Gogebic, Ontonagon | 6 hr |
| Dec 1, 2:36 AM EST | Mesoscale Discussion | SPC | Alger, Alpena, Antrim, Arenac, Baraga, Benzie and 36 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hillsdale County28
- Lenawee County25
- Cass County25
- Kalamazoo County25
- Branch County24
- Jackson County24
- Saint Joseph County24
- Ingham County24
- Livingston County24
- Eaton County24
- Allegan County23
- Monroe County22
- Calhoun County22
- Barry County22
- Washtenaw County21
- Wayne County21
- Oakland County21
- Van Buren County21
- Ionia County21
- Kent County21
- Clinton County21
- Montcalm County19
- Gratiot County19
- Berrien County18
- Shiawassee County18
- Gogebic County18
- Macomb County17
- Mecosta County16
- Newaygo County16
- Ottawa County16
- Isabella County16
- Iron County16
- Genesee County15
- Clare County14
- Midland County14
- Ontonagon County14
- Saginaw County13
- Dickinson County13
- Baraga County13
- Saint Clair County12
43 more counties
- Lake County12
- Lapeer County12
- Osceola County12
- Crawford County11
- Gladwin County11
- Houghton County11
- Ogemaw County10
- Roscommon County10
- Marquette County10
- Manistee County9
- Muskegon County9
- Oceana County9
- Kalkaska County9
- Missaukee County9
- Montmorency County9
- Otsego County9
- Wexford County9
- Alger County8
- Antrim County8
- Grand Traverse County8
- Oscoda County8
- Menominee County8
- Delta County7
- Mackinac County7
- Schoolcraft County7
- Mason County7
- Arenac County7
- Bay County7
- Benzie County7
- Tuscola County6
- Luce County5
- Iosco County5
- Cheboygan County5
- Emmet County5
- Leelanau County5
- Sanilac County5
- Alpena County5
- Charlevoix County4
- Huron County4
- Chippewa County3
- Keweenaw County3
- Alcona County2
- Presque Isle County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.