Alert archive / Michigan / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Michigan, 2009
11 severe thunderstorm watches in 2009. 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 2009. Tap one for its archive.
- Severe Thunderstorm Watches
- 11
- Busiest month
- June4 severe thunderstorm watches
- Busiest day
- April 25, 20092 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 25, 10:44 AM EDT | Severe Thunderstorm Watch | SPC | Alcona, Allegan, Alpena, Arenac, Barry, Bay and 35 more | 5 hr |
| Apr 25, 3:39 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 23 more | 6 hr |
| May 13, 11:51 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 9 more | 4 hr |
| May 14, 1:42 AM EDT | Severe Thunderstorm Watch | SPC | Bay, Genesee, Hillsdale, Huron, Lapeer, Lenawee and 12 more | 4 hr |
| Jun 1, 3:37 PM EDT | Severe Thunderstorm Watch | SPC | Berrien, Branch, Cass, Hillsdale, Saint Joseph | 7 hr |
| Jun 19, 12:30 AM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Berrien, Branch, Calhoun, Cass and 8 more | 7 hr |
| Jun 19, 4:16 AM EDT | Severe Thunderstorm Watch | SPC | Hillsdale, Jackson, Lenawee, Monroe, Washtenaw | 6 hr |
| Jun 25, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Branch, Calhoun, Clinton, Eaton and 24 more | 8 hr |
| Aug 9, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 22 more | 5 hr |
| Aug 9, 5:48 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Bay, Berrien, Branch, Calhoun and 35 more | 4 hr |
| Sep 27, 10:46 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Bay, Berrien, Branch, Calhoun and 31 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegan County7
- Barry County7
- Calhoun County7
- Kalamazoo County7
- Van Buren County7
- Washtenaw County7
- Branch County7
- Hillsdale County7
- Saint Joseph County7
- Eaton County6
- Genesee County6
- Ionia County6
- Jackson County6
- Kent County6
- Lapeer County6
- Livingston County6
- Macomb County6
- Oakland County6
- Saginaw County6
- Saint Clair County6
- Sanilac County6
- Shiawassee County6
- Tuscola County6
- Wayne County6
- Berrien County6
- Cass County6
- Lenawee County6
- Monroe County6
- Clinton County5
- Ingham County5
- Montcalm County5
- Ottawa County5
- Bay County4
- Gratiot County4
- Huron County4
- Midland County4
- Muskegon County4
- Newaygo County3
- Oceana County3
- Alcona County2
28 more counties
- Alpena County2
- Arenac County2
- Clare County2
- Gladwin County2
- Iosco County2
- Isabella County2
- Mecosta County2
- Ogemaw County2
- Osceola County2
- Roscommon County2
- Antrim County1
- Benzie County1
- Charlevoix County1
- Cheboygan County1
- Crawford County1
- Emmet County1
- Grand Traverse County1
- Kalkaska County1
- Lake County1
- Leelanau County1
- Manistee County1
- Mason County1
- Missaukee County1
- Montmorency County1
- Oscoda County1
- Otsego County1
- Presque Isle County1
- Wexford County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.