Alert archive / Michigan / Severe Thunderstorm Watches / 2011
Severe Thunderstorm Watches in Michigan, August 2011
5 severe thunderstorm watches 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in August 2011. Tap one for its archive.
- Severe Thunderstorm Watches
- 5
- Busiest day
- August 13, 20112 severe thunderstorm watches
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 2, 6:22 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 33 more | 9 hr |
| Aug 13, 1:12 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 11 more | 9 hr |
| Aug 13, 5:28 PM EDT | Severe Thunderstorm Watch | SPC | Genesee, Lapeer, Lenawee, Livingston, Macomb, Monroe and 5 more | 4 hr |
| Aug 20, 1:41 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Calhoun, Clinton, Eaton, Genesee and 20 more | 4 hr |
| Aug 24, 7:08 PM EDT | Severe Thunderstorm Watch | SPC | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegan County3
- Barry County3
- Berrien County3
- Branch County3
- Calhoun County3
- Cass County3
- Clinton County3
- Eaton County3
- Genesee County3
- Hillsdale County3
- Ingham County3
- Ionia County3
- Jackson County3
- Kalamazoo County3
- Lenawee County3
- Livingston County3
- Macomb County3
- Monroe County3
- Oakland County3
- Saint Joseph County3
- Shiawassee County3
- Van Buren County3
- Washtenaw County3
- Wayne County3
- Gratiot County2
- Kent County2
- Montcalm County2
- Ottawa County2
- Saginaw County2
- Lapeer County2
- Saint Clair County2
- Clare County1
- Isabella County1
- Lake County1
- Mason County1
- Mecosta County1
- Midland County1
- Muskegon County1
- Newaygo County1
- Oceana County1
3 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.