Alert archive / Michigan / Mesoscale Discussions / 2020
Mesoscale Discussions in Michigan, September 2020
8 mesoscale discussions in September 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 September 2020. Tap one for its archive.
- Mesoscale Discussions
- 8
- Busiest day
- September 26, 20203 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 |
|---|---|---|---|---|
| Sep 3, 11:55 AM EDT | Mesoscale Discussion | SPC | Antrim, Cheboygan, Crawford, Kalkaska, Montmorency, Oscoda and 2 more | 2 hr |
| Sep 6, 7:47 PM EDT | Mesoscale Discussion | SPC | Clare, Gladwin, Isabella, Lake, Manistee, Mason and 10 more | 118 min |
| Sep 7, 12:20 AM EDT | Mesoscale Discussion | SPC | Alcona, Arenac, Bay, Clare, Gladwin, Gratiot and 22 more | 115 min |
| Sep 25, 6:31 PM EDT | Mesoscale Discussion | SPC | Gogebic, Houghton, Ontonagon | 119 min |
| Sep 25, 9:47 PM EDT | Mesoscale Discussion | SPC | Iron | 118 min |
| Sep 26, 4:07 PM EDT | Mesoscale Discussion | SPC | Delta, Dickinson, Iron, Leelanau, Menominee, Schoolcraft | 83 min |
| Sep 26, 6:17 PM EDT | Mesoscale Discussion | SPC | Dickinson, Gogebic, Iron | 118 min |
| Sep 26, 9:59 PM EDT | Mesoscale Discussion | SPC | Alger, Dickinson | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Roscommon County3
- Iron County3
- Dickinson County3
- Oscoda County2
- Clare County2
- Gladwin County2
- Isabella County2
- Lake County2
- Manistee County2
- Mason County2
- Mecosta County2
- Midland County2
- Missaukee County2
- Montcalm County2
- Muskegon County2
- Newaygo County2
- Oceana County2
- Osceola County2
- Wexford County2
- Gogebic County2
- Antrim County1
- Cheboygan County1
- Crawford County1
- Kalkaska County1
- Montmorency County1
- Otsego County1
- Alcona County1
- Arenac County1
- Bay County1
- Gratiot County1
- Huron County1
- Iosco County1
- Kent County1
- Ogemaw County1
- Ottawa County1
- Saginaw County1
- Tuscola County1
- Houghton County1
- Ontonagon County1
- Delta 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.