Alert archive / Michigan / Severe Thunderstorm Warnings / 2009
Severe Thunderstorm Warnings in Michigan, August 2009
30 severe thunderstorm warnings in August 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 warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 2009. Tap one for its archive.
- Severe Thunderstorm Warnings
- 30
- Busiest day
- August 9, 200917 severe thunderstorm warnings
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 9, 1:33 AM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 27 min |
| Aug 9, 1:40 AM EDT | Severe Thunderstorm Warning | DTX | Saginaw, Shiawassee | 27 min |
| Aug 9, 1:45 AM EDT | Severe Thunderstorm Warning | DTX | Lapeer, Macomb, Oakland, Saint Clair | 50 min |
| Aug 9, 2:01 AM EDT | Severe Thunderstorm Warning | MQT | Houghton, Ontonagon | 44 min |
| Aug 9, 2:38 AM EDT | Severe Thunderstorm Warning | MQT | Baraga, Houghton, Ontonagon | 67 min |
| Aug 9, 3:43 AM EDT | Severe Thunderstorm Warning | MQT | Marquette | 62 min |
| Aug 9, 4:12 AM EDT | Severe Thunderstorm Warning | MQT | Alger | 63 min |
| Aug 9, 4:21 AM EDT | Severe Thunderstorm Warning | MQT | Alger, Schoolcraft | 54 min |
| Aug 9, 3:38 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 67 min |
| Aug 9, 4:00 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Montmorency | 45 min |
| Aug 9, 6:01 PM EDT | Severe Thunderstorm Warning | GRR | Kent, Muskegon, Newaygo, Ottawa | 66 min |
| Aug 9, 6:45 PM EDT | Severe Thunderstorm Warning | GRR | Ionia, Kent, Mecosta, Montcalm, Muskegon, Newaygo and 1 more | 60 min |
| Aug 9, 7:10 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Ingham and 5 more | 65 min |
| Aug 9, 7:11 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 39 min |
| Aug 9, 7:33 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 72 min |
| Aug 9, 7:40 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Eaton, Gratiot, Ingham, Ionia, Isabella and 2 more | 65 min |
| Aug 9, 7:49 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Ingham, Jackson | 56 min |
| Aug 9, 8:23 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 53 min |
| Aug 9, 8:23 PM EDT | Severe Thunderstorm Warning | GRR | Ingham, Jackson | 26 min |
| Aug 9, 8:25 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Saint Clair | 65 min |
| Aug 9, 8:46 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Oakland, Wayne | 49 min |
| Aug 10, 4:39 PM EDT | Severe Thunderstorm Warning | MQT | Schoolcraft | 66 min |
| Aug 10, 8:48 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Manistee | 72 min |
| Aug 10, 9:57 PM EDT | Severe Thunderstorm Warning | APX | Manistee, Wexford | 29 min |
| Aug 11, 12:27 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Saint Clair | 48 min |
| Aug 11, 5:17 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Wayne | 43 min |
| Aug 16, 3:41 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Ionia, Kent, Montcalm | 17 min |
| Aug 16, 4:41 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot, Ionia, Isabella, Montcalm | 37 min |
| Aug 16, 7:37 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Crawford, Kalkaska, Otsego | 53 min |
| Aug 20, 2:32 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 43 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Ionia County5
- Macomb County4
- Saint Clair County4
- Kent County4
- Montcalm County4
- Ingham County4
- Gratiot County3
- Oakland County3
- Jackson County3
- Houghton County2
- Ontonagon County2
- Alger County2
- Schoolcraft County2
- Muskegon County2
- Newaygo County2
- Ottawa County2
- Mecosta County2
- Allegan County2
- Barry County2
- Calhoun County2
- Clinton County2
- Eaton County2
- Livingston County2
- Isabella County2
- Wayne County2
- Manistee County2
- Saginaw County1
- Shiawassee County1
- Lapeer County1
- Baraga County1
- Marquette County1
- Presque Isle County1
- Alpena County1
- Montmorency County1
- Kalamazoo County1
- Van Buren County1
- Washtenaw County1
- Benzie County1
- Wexford County1
- Antrim County1
3 more counties
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.