Alert archive / Michigan / Mesoscale Discussions / 2011
Mesoscale Discussions in Michigan, September 2011
10 mesoscale discussions in September 2011. 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 2011. Tap one for its archive.
- Mesoscale Discussions
- 10
- Busiest day
- September 3, 20114 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 2, 11:08 AM EDT | Mesoscale Discussion | SPC | Antrim, Benzie, Grand Traverse, Kalkaska, Lake, Leelanau and 6 more | 97 min |
| Sep 3, 6:53 AM EDT | Mesoscale Discussion | SPC | Clinton, Genesee, Gratiot, Ionia, Isabella, Kent and 5 more | 97 min |
| Sep 3, 10:45 AM EDT | Mesoscale Discussion | SPC | Arenac, Bay, Huron, Sanilac, Tuscola | 60 min |
| Sep 3, 1:24 PM EDT | Mesoscale Discussion | SPC | Allegan, Berrien, Cass, Kalamazoo, Saint Joseph, Van Buren | 66 min |
| Sep 3, 6:02 PM EDT | Mesoscale Discussion | SPC | Berrien, Branch, Calhoun, Cass, Eaton, Genesee and 16 more | 58 min |
| Sep 3, 8:29 PM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Genesee, Hillsdale, Ingham, Jackson and 12 more | 61 min |
| Sep 12, 2:15 PM EDT | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Iron, Keweenaw, Ontonagon | 2 hr |
| Sep 12, 6:31 PM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 5 more | 119 min |
| Sep 12, 11:06 PM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Iron, Luce and 4 more | 54 min |
| Sep 29, 6:21 PM EDT | Mesoscale Discussion | SPC | Barry, Clinton, Eaton, Genesee, Gratiot, Ingham and 13 more | 84 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Genesee County4
- Shiawassee County4
- Sanilac County3
- Saint Joseph County3
- Ingham County3
- Jackson County3
- Lenawee County3
- Livingston County3
- Macomb County3
- Monroe County3
- Oakland County3
- Washtenaw County3
- Wayne County3
- Baraga County3
- Iron County3
- Clinton County2
- Gratiot County2
- Ionia County2
- Kent County2
- Montcalm County2
- Saginaw County2
- Berrien County2
- Cass County2
- Kalamazoo County2
- Branch County2
- Calhoun County2
- Eaton County2
- Hillsdale County2
- Lapeer County2
- Saint Clair County2
- Gogebic County2
- Houghton County2
- Keweenaw County2
- Ontonagon County2
- Alger County2
- Delta County2
- Dickinson County2
- Marquette County2
- Schoolcraft County2
- Antrim County1
24 more counties
- Benzie County1
- Grand Traverse County1
- Kalkaska County1
- Lake County1
- Leelanau County1
- Manistee County1
- Mason County1
- Missaukee County1
- Oceana County1
- Osceola County1
- Wexford County1
- Isabella County1
- Mecosta County1
- Newaygo County1
- Arenac County1
- Bay County1
- Huron County1
- Tuscola County1
- Allegan County1
- Van Buren County1
- Luce County1
- Mackinac County1
- Menominee County1
- Barry County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.