Alert archive / Michigan / Severe Thunderstorm Warnings / 2018
Severe Thunderstorm Warnings in Michigan, September 2018
31 severe thunderstorm warnings in September 2018. 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 September 2018. Tap one for its archive.
- Severe Thunderstorm Warnings
- 31
- Busiest day
- September 1, 20188 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 |
|---|---|---|---|---|
| Sep 1, 1:10 AM EDT | Severe Thunderstorm Warning | MQT | Gogebic, Ontonagon | 65 min |
| Sep 1, 2:07 AM EDT | Severe Thunderstorm Warning | MQT | Ontonagon | 53 min |
| Sep 1, 3:35 AM EDT | Severe Thunderstorm Warning | MQT | Baraga | 28 min |
| Sep 1, 6:34 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Kalamazoo | 41 min |
| Sep 1, 7:21 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun | 54 min |
| Sep 1, 7:39 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 29 min |
| Sep 1, 7:48 PM EDT | Severe Thunderstorm Warning | GRR | Jackson | 42 min |
| Sep 1, 7:53 PM EDT | Severe Thunderstorm Warning | IWX | Branch | 23 min |
| Sep 1, 8:18 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot, Isabella, Montcalm | 57 min |
| Sep 1, 8:30 PM EDT | Severe Thunderstorm Warning | GRR | Jackson | 45 min |
| Sep 1, 8:48 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Saginaw | 30 min |
| Sep 1, 11:54 PM EDT | Severe Thunderstorm Warning | IWX | Branch, Saint Joseph | 51 min |
| Sep 2, 8:11 PM EDT | Severe Thunderstorm Warning | GRR | Lake | 44 min |
| Sep 3, 3:34 PM EDT | Severe Thunderstorm Warning | IWX | Cass | 41 min |
| Sep 3, 4:17 PM EDT | Severe Thunderstorm Warning | GRR | Kalamazoo, Van Buren | 58 min |
| Sep 5, 6:25 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot, Montcalm | 50 min |
| Sep 5, 6:58 PM EDT | Severe Thunderstorm Warning | DTX | Bay, Midland, Saginaw | 45 min |
| Sep 5, 7:04 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 26 min |
| Sep 5, 7:57 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Livingston, Oakland | 63 min |
| Sep 5, 8:51 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Oakland | 10 min |
| Sep 5, 9:02 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer, Sanilac, Tuscola | 19 min |
| Sep 20, 5:03 PM EDT | Severe Thunderstorm Warning | IWX | Cass | 42 min |
| Sep 20, 5:18 PM EDT | Severe Thunderstorm Warning | IWX | Cass, Saint Joseph | 28 min |
| Sep 20, 5:59 PM EDT | Severe Thunderstorm Warning | IWX | Branch, Hillsdale | 21 min |
| Sep 20, 6:45 PM EDT | Severe Thunderstorm Warning | IWX | Hillsdale | 31 min |
| Sep 20, 6:59 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 41 min |
| Sep 20, 11:32 PM EDT | Severe Thunderstorm Warning | APX | Chippewa, Mackinac | 58 min |
| Sep 25, 6:31 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Ionia | 44 min |
| Sep 25, 6:49 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 42 min |
| Sep 25, 8:09 PM EDT | Severe Thunderstorm Warning | IWX | Berrien | 36 min |
| Sep 25, 8:32 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 43 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Gratiot County4
- Cass County4
- Branch County3
- Ontonagon County2
- Kalamazoo County2
- Jackson County2
- Montcalm County2
- Genesee County2
- Saginaw County2
- Saint Joseph County2
- Midland County2
- Oakland County2
- Hillsdale County2
- Berrien County2
- Gogebic County1
- Baraga County1
- Allegan County1
- Barry County1
- Calhoun County1
- Ingham County1
- Isabella County1
- Lake County1
- Van Buren County1
- Bay County1
- Livingston County1
- Macomb County1
- Lapeer County1
- Sanilac County1
- Tuscola County1
- Lenawee County1
- Chippewa County1
- Mackinac County1
- Clinton County1
- Ionia County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.