Alert archive / Michigan / Mesoscale Discussions / 2020
Mesoscale Discussions in Michigan, August 2020
20 mesoscale discussions in August 2020. 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 August 2020. Tap one for its archive.
- Mesoscale Discussions
- 20
- Busiest day
- August 10, 20207 mesoscale discussions
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Aug 9, 4:46 PM EDT | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Iron, Ontonagon | 89 min |
| Aug 9, 8:01 PM EDT | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Iron, Marquette, Ontonagon | 119 min |
| Aug 9, 11:11 PM EDT | Mesoscale Discussion | SPC | Alger, Delta, Dickinson, Luce, Mackinac, Marquette and 2 more | 34 min |
| Aug 10, 1:44 PM EDT | Mesoscale Discussion | SPC | Delta, Dickinson, Iron, Menominee | 61 min |
| Aug 10, 3:28 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 9 more | 92 min |
| Aug 10, 4:36 PM EDT | Mesoscale Discussion | SPC | Allegan, Berrien, Cass, Ottawa, Van Buren | 84 min |
| Aug 10, 4:46 PM EDT | Mesoscale Discussion | SPC | Antrim, Benzie, Charlevoix, Cheboygan, Chippewa, Clare and 24 more | 89 min |
| Aug 10, 6:17 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Branch, Calhoun, Cass, Clinton and 23 more | 118 min |
| Aug 10, 8:16 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Cheboygan and 24 more | 119 min |
| Aug 10, 8:29 PM EDT | Mesoscale Discussion | SPC | Hillsdale, Jackson, Lenawee | 91 min |
| Aug 21, 6:26 PM EDT | Mesoscale Discussion | SPC | Dickinson, Iron, Menominee | 94 min |
| Aug 25, 11:07 AM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Cass, Kalamazoo, Kent and 5 more | 113 min |
| Aug 26, 12:40 AM EDT | Mesoscale Discussion | SPC | Dickinson, Gogebic, Iron, Menominee, Ontonagon | 3 hr |
| Aug 26, 7:19 PM EDT | Mesoscale Discussion | SPC | Gogebic, Ontonagon | 86 min |
| Aug 27, 11:02 AM EDT | Mesoscale Discussion | SPC | Bay, Clare, Genesee, Gladwin, Gratiot, Huron and 15 more | 118 min |
| Aug 28, 1:32 PM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo and 4 more | 88 min |
| Aug 28, 1:50 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Clare, Clinton, Eaton, Gratiot and 16 more | 85 min |
| Aug 28, 4:24 PM EDT | Mesoscale Discussion | SPC | Bay, Genesee, Gratiot, Lapeer, Midland, Saginaw and 3 more | 96 min |
| Aug 28, 9:15 PM EDT | Mesoscale Discussion | SPC | Barry, Branch, Calhoun, Clinton, Eaton, Genesee and 19 more | 3 hr |
| Aug 28, 11:41 PM EDT | Mesoscale Discussion | SPC | Berrien, Branch, Calhoun, Cass, Eaton, Hillsdale and 7 more | 94 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cass County6
- Hillsdale County6
- Jackson County6
- Kalamazoo County6
- Saint Joseph County6
- Iron County5
- Allegan County5
- Barry County5
- Branch County5
- Calhoun County5
- Eaton County5
- Kent County5
- Ottawa County5
- Mecosta County5
- Newaygo County5
- Oceana County5
- Gratiot County5
- Saginaw County5
- Shiawassee County5
- Gogebic County4
- Ontonagon County4
- Dickinson County4
- Menominee County4
- Berrien County4
- Clinton County4
- Ionia County4
- Van Buren County4
- Clare County4
- Isabella County4
- Lake County4
- Mason County4
- Osceola County4
- Genesee County4
- Ingham County4
- Lenawee County4
- Montcalm County4
- Washtenaw County4
- Midland County4
- Gladwin County3
- Manistee County3
42 more counties
- Lapeer County3
- Livingston County3
- Baraga County2
- Houghton County2
- Marquette County2
- Delta County2
- Mackinac County2
- Schoolcraft County2
- Antrim County2
- Benzie County2
- Cheboygan County2
- Crawford County2
- Emmet County2
- Grand Traverse County2
- Kalkaska County2
- Missaukee County2
- Montmorency County2
- Ogemaw County2
- Oscoda County2
- Otsego County2
- Presque Isle County2
- Roscommon County2
- Wexford County2
- Monroe County2
- Oakland County2
- Wayne County2
- Muskegon County2
- Bay County2
- Sanilac County2
- Tuscola County2
- Alger County1
- Luce County1
- Charlevoix County1
- Chippewa County1
- Leelanau County1
- Macomb County1
- Alcona County1
- Alpena County1
- Arenac County1
- Iosco County1
- Huron County1
- Saint Clair County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.