Alert archive / Michigan / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Michigan, 2011
28 severe thunderstorm watches in 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 2011. Tap one for its archive.
- Severe Thunderstorm Watches
- 28
- Busiest month
- July7 severe thunderstorm watches
- Busiest day
- May 22, 20112 severe thunderstorm watches
Over time
By month
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 |
|---|---|---|---|---|
| Apr 4, 5:30 AM EDT | Severe Thunderstorm Watch | SPC | Branch, Hillsdale, Lenawee, Monroe | 8 hr |
| May 11, 6:56 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 3 more | 5 hr |
| May 22, 3:41 PM EDT | Severe Thunderstorm Watch | SPC | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 3 hr |
| May 22, 5:32 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 12 more | 7 hr |
| May 23, 2:15 PM EDT | Severe Thunderstorm Watch | SPC | Branch, Calhoun, Genesee, Hillsdale, Huron, Ingham and 13 more | 8 hr |
| May 31, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alger, Alpena, Antrim, Arenac, Baraga and 30 more | 8 hr |
| May 31, 3:33 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Bay, Berrien, Branch, Calhoun and 39 more | 7 hr |
| Jun 3, 11:49 PM EDT | Severe Thunderstorm Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 5 hr |
| Jun 4, 3:08 PM EDT | Severe Thunderstorm Watch | SPC | Berrien, Branch, Calhoun, Cass, Genesee, Hillsdale and 13 more | 7 hr |
| Jun 8, 1:54 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Benzie, Charlevoix, Cheboygan and 9 more | 119 min |
| Jun 8, 10:39 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Bay, Calhoun, Clare, Clinton and 20 more | 4 hr |
| Jun 22, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | Arenac, Barry, Bay, Branch, Calhoun, Clinton and 24 more | 6 hr |
| Jul 1, 9:07 PM EDT | Severe Thunderstorm Watch | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw and 2 more | 5 hr |
| Jul 2, 2:24 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Allegan, Arenac, Barry, Bay, Berrien and 37 more | 9 hr |
| Jul 11, 6:37 AM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 22 more | 6 hr |
| Jul 11, 9:07 AM EDT | Severe Thunderstorm Watch | SPC | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 4 hr |
| Jul 22, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | Branch, Cass, Hillsdale, Lenawee, Monroe, Saint Joseph and 2 more | 7 hr |
| Jul 29, 2:15 AM EDT | Severe Thunderstorm Watch | SPC | Berrien, Branch, Calhoun, Cass, Hillsdale, Jackson and 9 more | 6 hr |
| Jul 30, 2:04 PM EDT | Severe Thunderstorm Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 7 hr |
| 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 |
| Sep 2, 12:09 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 18 more | 3 hr |
| Sep 3, 7:22 AM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Bay, Clinton, Eaton, Genesee and 19 more | 5 hr |
| Sep 3, 4:05 PM EDT | Severe Thunderstorm Watch | SPC | Berrien, Branch, Calhoun, Cass, Eaton, Genesee and 17 more | 7 hr |
| Sep 12, 8:09 PM EDT | Severe Thunderstorm Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 7 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Branch County15
- Hillsdale County14
- Lenawee County14
- Monroe County14
- Calhoun County14
- Saint Joseph County14
- Washtenaw County13
- Wayne County13
- Ingham County13
- Jackson County13
- Cass County12
- Genesee County12
- Livingston County12
- Macomb County12
- Oakland County12
- Saint Clair County12
- Barry County11
- Berrien County11
- Kalamazoo County11
- Lapeer County11
- Shiawassee County11
- Eaton County11
- Allegan County10
- Van Buren County10
- Clinton County10
- Saginaw County9
- Sanilac County9
- Ionia County9
- Midland County8
- Tuscola County8
- Kent County8
- Ottawa County8
- Gratiot County8
- Bay County7
- Huron County7
- Montcalm County7
- Muskegon County6
- Isabella County6
- Mecosta County6
- Baraga County5
43 more counties
- Dickinson County5
- Houghton County5
- Iron County5
- Marquette County5
- Clare County5
- Lake County5
- Mason County5
- Newaygo County5
- Oceana County5
- Osceola County5
- Alcona County4
- Alger County4
- Arenac County4
- Delta County4
- Gladwin County4
- Keweenaw County4
- Luce County4
- Schoolcraft County4
- Gogebic County4
- Ontonagon County4
- Alpena County3
- Antrim County3
- Benzie County3
- Charlevoix County3
- Crawford County3
- Grand Traverse County3
- Iosco County3
- Kalkaska County3
- Leelanau County3
- Menominee County3
- Montmorency County3
- Ogemaw County3
- Oscoda County3
- Otsego County3
- Cheboygan County2
- Emmet County2
- Manistee County2
- Missaukee County2
- Presque Isle County2
- Roscommon County2
- Wexford County2
- Chippewa County1
- Mackinac County1
The busiest days
Days with the most alerts issued, by UTC date.
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.