Alert archive / Michigan / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Michigan, August 2020
84 severe thunderstorm warnings in August 2020. 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 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 84
- Busiest day
- August 10, 202030 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 3, 9:39 AM EDT | Severe Thunderstorm Warning | DTX | Huron, Sanilac | 34 min |
| Aug 9, 8:13 PM EDT | Severe Thunderstorm Warning | MQT | Houghton, Ontonagon | 32 min |
| Aug 9, 8:32 PM EDT | Severe Thunderstorm Warning | MQT | Houghton, Ontonagon | 28 min |
| Aug 9, 8:57 PM EDT | Severe Thunderstorm Warning | MQT | Houghton | 33 min |
| Aug 9, 9:05 PM EDT | Severe Thunderstorm Warning | MQT | Houghton, Keweenaw | 13 min |
| Aug 9, 9:08 PM EDT | Severe Thunderstorm Warning | MQT | Houghton | 26 min |
| Aug 9, 9:44 PM EDT | Severe Thunderstorm Warning | MQT | Iron | 46 min |
| Aug 9, 9:52 PM EDT | Severe Thunderstorm Warning | MQT | Baraga, Houghton | 23 min |
| Aug 9, 10:23 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Iron | 37 min |
| Aug 9, 10:28 PM EDT | Severe Thunderstorm Warning | MQT | Baraga, Iron, Marquette | 32 min |
| Aug 9, 10:53 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Marquette | 52 min |
| Aug 10, 9:42 AM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Marquette, Menominee | 33 min |
| Aug 10, 10:11 AM EDT | Severe Thunderstorm Warning | MQT | Alger, Delta, Dickinson, Marquette | 49 min |
| Aug 10, 10:55 AM EDT | Severe Thunderstorm Warning | MQT | Alger, Schoolcraft | 35 min |
| Aug 10, 12:31 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Marquette, Menominee | 44 min |
| Aug 10, 12:44 PM EDT | Severe Thunderstorm Warning | MQT | Luce | 16 min |
| Aug 10, 1:09 PM EDT | Severe Thunderstorm Warning | MQT | Delta, Dickinson, Marquette, Menominee | 32 min |
| Aug 10, 2:09 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Menominee | 51 min |
| Aug 10, 2:52 PM EDT | Severe Thunderstorm Warning | MQT | Delta, Menominee | 38 min |
| Aug 10, 3:43 PM EDT | Severe Thunderstorm Warning | MQT | Menominee | 47 min |
| Aug 10, 3:53 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Presque Isle | 37 min |
| Aug 10, 4:10 PM EDT | Severe Thunderstorm Warning | MQT | Menominee | 35 min |
| Aug 10, 4:12 PM EDT | Severe Thunderstorm Warning | APX | Chippewa | 29 min |
| Aug 10, 5:19 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 71 min |
| Aug 10, 5:30 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Presque Isle | 45 min |
| Aug 10, 5:49 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Ottawa, Van Buren | 86 min |
| Aug 10, 6:24 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass, Saint Joseph | 66 min |
| Aug 10, 6:26 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 34 min |
| Aug 10, 6:50 PM EDT | Severe Thunderstorm Warning | GRR | Kalamazoo | 37 min |
| Aug 10, 7:33 PM EDT | Severe Thunderstorm Warning | GRR | Kent | 42 min |
| Aug 10, 7:38 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Iosco, Ogemaw, Oscoda | 38 min |
| Aug 14, 2:42 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 48 min |
| Aug 14, 2:53 PM EDT | Severe Thunderstorm Warning | GRR | Ingham, Jackson | 52 min |
| Aug 14, 4:14 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 41 min |
| Aug 15, 7:56 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 64 min |
| Aug 16, 2:55 AM EDT | Severe Thunderstorm Warning | APX | Gladwin | 36 min |
| Aug 21, 3:04 PM EDT | Severe Thunderstorm Warning | APX | Montmorency | 41 min |
| Aug 21, 3:33 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Marquette, Menominee | 30 min |
| Aug 21, 4:01 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson, Iron | 44 min |
| Aug 21, 4:24 PM EDT | Severe Thunderstorm Warning | MQT | Delta, Menominee | 51 min |
| Aug 21, 4:46 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson | 44 min |
| Aug 21, 4:52 PM EDT | Severe Thunderstorm Warning | MQT | Delta, Menominee | 38 min |
| Aug 21, 5:40 PM EDT | Severe Thunderstorm Warning | MQT | Dickinson | 35 min |
| Aug 21, 6:05 PM EDT | Severe Thunderstorm Warning | MQT | Menominee | 25 min |
| Aug 21, 6:17 PM EDT | Severe Thunderstorm Warning | MQT | Menominee | 25 min |
| Aug 21, 6:26 PM EDT | Severe Thunderstorm Warning | MQT | Iron | 34 min |
| Aug 21, 6:29 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 26 min |
| Aug 21, 7:09 PM EDT | Severe Thunderstorm Warning | MQT | Iron | 24 min |
| Aug 21, 8:00 PM EDT | Severe Thunderstorm Warning | MQT | Gogebic, Ontonagon | 30 min |
| Aug 21, 8:15 PM EDT | Severe Thunderstorm Warning | MQT | Gogebic, Houghton, Ontonagon | 30 min |
| Aug 21, 8:19 PM EDT | Severe Thunderstorm Warning | MQT | Ontonagon | 26 min |
| Aug 24, 2:54 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 38 min |
| Aug 25, 10:38 AM EDT | Severe Thunderstorm Warning | GRR | Muskegon, Newaygo, Oceana | 37 min |
| Aug 26, 2:11 AM EDT | Severe Thunderstorm Warning | MQT | Baraga, Houghton, Ontonagon | 19 min |
| Aug 26, 2:27 AM EDT | Severe Thunderstorm Warning | MQT | Baraga | 18 min |
| Aug 26, 2:44 AM EDT | Severe Thunderstorm Warning | MQT | Baraga | 16 min |
| Aug 26, 3:24 AM EDT | Severe Thunderstorm Warning | APX | Manistee | 38 min |
| Aug 26, 4:09 AM EDT | Severe Thunderstorm Warning | GRR | Mason, Oceana | 66 min |
| Aug 26, 9:27 AM EDT | Severe Thunderstorm Warning | MQT | Schoolcraft | 33 min |
| Aug 27, 10:41 AM EDT | Severe Thunderstorm Warning | GRR | Mason | 54 min |
| Aug 27, 6:18 PM EDT | Severe Thunderstorm Warning | IWX | Berrien | 27 min |
| Aug 28, 2:09 PM EDT | Severe Thunderstorm Warning | GRR | Jackson | 36 min |
| Aug 28, 2:26 PM EDT | Severe Thunderstorm Warning | GRR | Muskegon | 44 min |
| Aug 28, 2:37 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee, Washtenaw | 53 min |
| Aug 28, 3:16 PM EDT | Severe Thunderstorm Warning | GRR | Newaygo | 27 min |
| Aug 28, 3:27 PM EDT | Severe Thunderstorm Warning | GRR | Mecosta | 35 min |
| Aug 28, 3:54 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 51 min |
| Aug 28, 4:29 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw, Shiawassee | 58 min |
| Aug 28, 4:43 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 59 min |
| Aug 28, 8:49 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Ottawa | 56 min |
| Aug 28, 9:24 PM EDT | Severe Thunderstorm Warning | GRR | Kent, Montcalm, Muskegon, Newaygo | 66 min |
| Aug 28, 9:42 PM EDT | Severe Thunderstorm Warning | GRR | Kent | 48 min |
| Aug 28, 9:44 PM EDT | Severe Thunderstorm Warning | GRR | Allegan | 61 min |
| Aug 28, 10:13 PM EDT | Severe Thunderstorm Warning | GRR | Ionia | 32 min |
| Aug 28, 10:26 PM EDT | Severe Thunderstorm Warning | GRR | Ionia, Montcalm | 40 min |
| Aug 28, 10:46 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot | 44 min |
| Aug 28, 10:56 PM EDT | Severe Thunderstorm Warning | DTX | Huron, Sanilac | 32 min |
| Aug 28, 10:56 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Calhoun, Eaton | 64 min |
| Aug 28, 11:24 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw, Shiawassee | 41 min |
| Aug 28, 11:25 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Kalamazoo | 50 min |
| Aug 28, 11:47 PM EDT | Severe Thunderstorm Warning | GRR | Jackson | 68 min |
| Aug 29, 12:06 AM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 39 min |
| Aug 29, 12:20 AM EDT | Severe Thunderstorm Warning | DTX | Livingston, Washtenaw | 55 min |
| Aug 29, 12:39 AM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass, Saint Joseph | 51 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Menominee County12
- Dickinson County11
- Houghton County8
- Marquette County7
- Ontonagon County6
- Iron County6
- Baraga County5
- Delta County5
- Berrien County5
- Cass County4
- Presque Isle County3
- Allegan County3
- Kent County3
- Washtenaw County3
- Jackson County3
- Muskegon County3
- Newaygo County3
- Huron County2
- Sanilac County2
- Alger County2
- Schoolcraft County2
- Alpena County2
- Ottawa County2
- Saint Joseph County2
- Kalamazoo County2
- Iosco County2
- Lenawee County2
- Gogebic County2
- Oceana County2
- Mason County2
- Gratiot County2
- Saginaw County2
- Shiawassee County2
- Montcalm County2
- Ionia County2
- Calhoun County2
- Keweenaw County1
- Luce County1
- Chippewa County1
- Van Buren County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.