Alert archive / Michigan / Mesoscale Discussions / 2011

Mesoscale Discussions in Michigan, August 2011

15 mesoscale discussions in August 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 August 2011. Tap one for its archive.

Mesoscale Discussions
15
Busiest day
August 1, 20113 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.

IssuedProductOfficeCountiesLasted
Aug 1, 3:47 AM EDTMesoscale DiscussionSPCBay, Clinton, Genesee, Gladwin, Gratiot, Ingham and 12 more58 min
Aug 1, 8:01 AM EDTMesoscale DiscussionSPCMonroe89 min
Aug 1, 1:06 PM EDTMesoscale DiscussionSPCBranch, Calhoun, Eaton, Hillsdale, Jackson, Lenawee and 2 more24 min
Aug 2, 2:25 PM EDTMesoscale DiscussionSPCAllegan, Arenac, Barry, Bay, Benzie, Branch and 41 more95 min
Aug 2, 9:34 PM EDTMesoscale DiscussionSPCBerrien, Branch, Calhoun, Cass, Hillsdale, Kalamazoo and 2 more86 min
Aug 3, 12:25 AM EDTMesoscale DiscussionSPCBranch, Calhoun, Cass, Kalamazoo, Saint Joseph95 min
Aug 7, 12:14 PM EDTMesoscale DiscussionSPCBranch, Cass, Hillsdale, Saint Joseph2 hr
Aug 13, 12:45 PM EDTMesoscale DiscussionSPCAllegan, Berrien, Branch, Cass, Kalamazoo, Saint Joseph and 1 more60 min
Aug 13, 4:29 PM EDTMesoscale DiscussionSPCBranch, Hillsdale, Jackson, Lenawee, Livingston, Saint Joseph91 min
Aug 13, 7:10 PM EDTMesoscale DiscussionSPCLenawee, Livingston, Macomb, Monroe, Oakland, Saint Clair and 2 more95 min
Aug 17, 3:49 PM EDTMesoscale DiscussionSPCChippewa, Mackinac56 min
Aug 20, 12:04 PM EDTMesoscale DiscussionSPCBarry, Berrien, Branch, Calhoun, Cass, Clinton and 21 more116 min
Aug 20, 4:37 PM EDTMesoscale DiscussionSPCMacomb, Saint Clair, Wayne83 min
Aug 24, 4:46 PM EDTMesoscale DiscussionSPCBerrien, Branch, Calhoun, Cass, Eaton, Hillsdale and 11 more89 min
Aug 24, 8:25 PM EDTMesoscale DiscussionSPCAlcona, Allegan, Alpena, Arenac, Barry, Bay and 37 more95 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

20 more counties

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.