Alert archive / Michigan / Mesoscale Discussions / 2012
Mesoscale Discussions in Michigan, September 2012
7 mesoscale discussions in September 2012. 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 2012. Tap one for its archive.
- Mesoscale Discussions
- 7
- Busiest day
- September 5, 20123 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, 1:43 PM EDT | Mesoscale Discussion | SPC | Alger, Charlevoix, Chippewa, Delta, Dickinson, Luce and 3 more | 2 hr |
| Sep 4, 2:33 PM EDT | Mesoscale Discussion | SPC | Gogebic | 117 min |
| Sep 4, 7:39 PM EDT | Mesoscale Discussion | SPC | Gogebic, Ontonagon | 66 min |
| Sep 4, 9:30 PM EDT | Mesoscale Discussion | SPC | Gogebic, Ontonagon | 60 min |
| Sep 5, 1:51 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Arenac, Bay, Genesee, Huron and 8 more | 114 min |
| Sep 5, 4:45 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Cheboygan, Chippewa and 14 more | 90 min |
| Sep 17, 2:30 PM EDT | Mesoscale Discussion | SPC | Alpena, Clare, Crawford, Kalkaska, Lake, Mecosta and 13 more | 60 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Gogebic County3
- Alpena County3
- Chippewa County2
- Ontonagon County2
- Alcona County2
- Arenac County2
- Iosco County2
- Clare County2
- Crawford County2
- Kalkaska County2
- Missaukee County2
- Montmorency County2
- Ogemaw County2
- Osceola County2
- Oscoda County2
- Otsego County2
- Presque Isle County2
- Roscommon County2
- Wexford County2
- Alger County1
- Charlevoix County1
- Delta County1
- Dickinson County1
- Luce County1
- Mackinac County1
- Menominee County1
- Schoolcraft County1
- Bay County1
- Genesee County1
- Huron County1
- Lapeer County1
- Livingston County1
- Macomb County1
- Oakland County1
- Saint Clair County1
- Sanilac County1
- Tuscola County1
- Antrim County1
- Cheboygan County1
- Gladwin County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.