Alert archive / Michigan / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Michigan, 2022

262 severe thunderstorm warnings in 2022. 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 2022. Tap one for its archive.

Severe Thunderstorm Warnings: 262
Busiest month: August67 severe thunderstorm warnings
Busiest day: August 3, 202238 severe thunderstorm warnings

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

127 of 262 severe thunderstorm warnings covering Michigan in 2022 had a qualifying storm report inside them; 254 of 350 hail, wind and damage reports fell inside a warning, on average 25 minutes after it went out.

Michigan, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	262	127	52%	350	73%	25 min

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Detroit, MI: severe thunderstorm warnings	59	40	32%	94	85%	26 min
NWS Marquette, MI: severe thunderstorm warnings	75	17	77%	68	49%	18 min
NWS Green Bay, WI: severe thunderstorm warnings	59	43	27%	175	89%	25 min
NWS Gaylord, MI: severe thunderstorm warnings	37	19	49%	39	82%	21 min
NWS Northern Indiana: severe thunderstorm warnings	105	63	40%	385	75%	25 min
NWS Grand Rapids, MI: severe thunderstorm warnings	67	35	48%	107	79%	26 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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
Mar 6, 1:04 AM EST	Severe Thunderstorm Warning	IWX	Berrien, Cass	41 min
Apr 11, 4:56 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot	21 min
Apr 23, 1:33 AM EDT	Severe Thunderstorm Warning	MQT	Houghton	42 min
Apr 23, 2:07 AM EDT	Severe Thunderstorm Warning	MQT	Alger, Marquette	23 min
Apr 24, 3:22 PM EDT	Severe Thunderstorm Warning	GRR	Isabella, Montcalm	40 min
Apr 24, 3:55 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Midland	51 min
Apr 24, 3:58 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Gladwin	47 min
Apr 24, 4:51 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	39 min
Apr 24, 5:09 PM EDT	Severe Thunderstorm Warning	APX	Iosco	24 min
Apr 24, 5:12 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Saginaw	39 min
Apr 24, 5:25 PM EDT	Severe Thunderstorm Warning	DTX	Livingston	35 min
Apr 24, 5:42 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Oakland	38 min
Apr 24, 6:35 PM EDT	Severe Thunderstorm Warning	GRR	Eaton	25 min
May 10, 5:47 PM EDT	Severe Thunderstorm Warning	MQT	Iron	43 min
May 10, 6:29 PM EDT	Severe Thunderstorm Warning	MQT	Dickinson, Iron	31 min
May 10, 7:45 PM EDT	Severe Thunderstorm Warning	MQT	Menominee	45 min
May 10, 7:54 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Menominee	36 min
May 10, 8:55 PM EDT	Severe Thunderstorm Warning	MQT	Menominee	20 min
May 10, 11:17 PM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Leelanau	41 min
May 11, 9:22 AM EDT	Severe Thunderstorm Warning	APX	Arenac	38 min
May 11, 9:29 AM EDT	Severe Thunderstorm Warning	APX	Gladwin	61 min
May 11, 10:02 AM EDT	Severe Thunderstorm Warning	GRR	Clare, Isabella	58 min
May 11, 10:57 AM EDT	Severe Thunderstorm Warning	DTX	Midland	39 min
May 11, 10:58 AM EDT	Severe Thunderstorm Warning	GRR	Isabella	47 min
May 11, 11:57 AM EDT	Severe Thunderstorm Warning	APX	Crawford, Missaukee, Roscommon	33 min
May 11, 12:07 PM EDT	Severe Thunderstorm Warning	GRR	Isabella, Mecosta	53 min
May 11, 12:18 PM EDT	Severe Thunderstorm Warning	GRR	Osceola	32 min
May 11, 12:55 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	65 min
May 11, 1:10 PM EDT	Severe Thunderstorm Warning	GRR	Mecosta	43 min
May 11, 1:58 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	47 min
May 11, 2:49 PM EDT	Severe Thunderstorm Warning	GRR	Oceana	26 min
May 12, 3:32 PM EDT	Severe Thunderstorm Warning	MQT	Dickinson, Menominee	43 min
May 12, 4:34 PM EDT	Severe Thunderstorm Warning	MQT	Dickinson, Menominee	41 min
May 12, 5:07 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Menominee	38 min
May 12, 5:41 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Dickinson, Gogebic, Iron	34 min
May 13, 4:41 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	34 min
May 13, 8:14 PM EDT	Severe Thunderstorm Warning	MQT	Baraga	31 min
May 14, 1:59 PM EDT	Severe Thunderstorm Warning	APX	Roscommon	31 min
May 14, 2:16 PM EDT	Severe Thunderstorm Warning	GRR	Ingham, Jackson	29 min
May 14, 2:21 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Washtenaw	18 min
May 14, 2:30 PM EDT	Severe Thunderstorm Warning	APX	Montmorency, Otsego	45 min
May 14, 2:31 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	26 min
May 14, 2:36 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	30 min
May 14, 3:34 PM EDT	Severe Thunderstorm Warning	APX	Alpena	41 min
May 14, 3:56 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Tuscola	36 min
May 14, 6:50 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Ionia	19 min
May 20, 2:11 PM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Leelanau	49 min
May 20, 2:34 PM EDT	Severe Thunderstorm Warning	APX	Charlevoix	26 min
May 20, 2:46 PM EDT	Severe Thunderstorm Warning	APX	Antrim, Charlevoix, Emmet, Grand Traverse, Kalkaska	44 min
May 20, 2:52 PM EDT	Severe Thunderstorm Warning	APX	Cheboygan, Emmet, Mackinac	53 min
May 20, 3:24 PM EDT	Severe Thunderstorm Warning Considerable damage threat	APX	Antrim, Charlevoix, Cheboygan, Montmorency, Otsego	55 min
May 20, 3:37 PM EDT	Severe Thunderstorm Warning	APX	Chippewa, Mackinac	53 min
May 20, 3:53 PM EDT	Severe Thunderstorm Warning Considerable damage threat	APX	Cheboygan, Montmorency, Presque Isle	50 min
May 20, 4:24 PM EDT	Severe Thunderstorm Warning Considerable damage threat	APX	Alpena, Presque Isle	38 min
May 21, 10:16 AM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Macomb, Saint Clair	45 min
May 25, 7:13 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Saint Joseph	33 min
Jun 1, 12:20 PM EDT	Severe Thunderstorm Warning	DTX	Wayne	55 min
Jun 13, 6:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	GRR	Allegan, Van Buren	84 min
Jun 13, 7:11 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Berrien	23 min
Jun 13, 7:28 PM EDT	Severe Thunderstorm Warning Destructive damage threat	GRR	Van Buren	47 min
Jun 13, 7:41 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Cass, Saint Joseph	49 min
Jun 13, 7:47 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	58 min
Jun 13, 8:07 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Cass, Saint Joseph	23 min
Jun 13, 8:29 PM EDT	Severe Thunderstorm Warning	IWX	Saint Joseph	31 min
Jun 13, 8:54 PM EDT	Severe Thunderstorm Warning	IWX	Cass	51 min
Jun 13, 8:56 PM EDT	Severe Thunderstorm Warning	IWX	Branch	49 min
Jun 13, 9:11 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Hillsdale	49 min
Jun 14, 12:09 AM EDT	Severe Thunderstorm Warning	GRR	Barry, Eaton	35 min
Jun 14, 12:21 AM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Calhoun, Kalamazoo, Van Buren	57 min
Jun 14, 12:52 AM EDT	Severe Thunderstorm Warning	GRR	Ingham, Jackson	25 min
Jun 14, 1:41 AM EDT	Severe Thunderstorm Warning	DTX	Lenawee	18 min
Jun 15, 9:43 AM EDT	Severe Thunderstorm Warning	MQT	Delta, Menominee	47 min
Jun 15, 10:25 AM EDT	Severe Thunderstorm Warning	MQT	Delta	37 min
Jun 15, 7:54 PM EDT	Severe Thunderstorm Warning	MQT	Menominee	36 min
Jun 15, 8:06 PM EDT	Severe Thunderstorm Warning	MQT	Dickinson, Menominee	24 min
Jun 15, 9:03 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Schoolcraft	42 min
Jun 15, 9:22 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Luce, Schoolcraft	23 min
Jun 15, 9:23 PM EDT	Severe Thunderstorm Warning	APX	Chippewa, Mackinac	67 min
Jun 15, 9:29 PM EDT	Severe Thunderstorm Warning	MQT	Luce	46 min
Jun 15, 10:18 PM EDT	Severe Thunderstorm Warning	APX	Chippewa, Mackinac	42 min
Jun 15, 10:51 PM EDT	Severe Thunderstorm Warning	APX	Antrim, Grand Traverse, Kalkaska	32 min
Jun 16, 2:18 AM EDT	Severe Thunderstorm Warning	APX	Ogemaw, Oscoda, Roscommon	21 min
Jun 16, 3:48 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot, Isabella	27 min
Jun 16, 3:49 AM EDT	Severe Thunderstorm Warning	DTX	Bay, Midland, Saginaw	56 min
Jun 16, 4:31 AM EDT	Severe Thunderstorm Warning	DTX	Huron, Tuscola	44 min
Jun 16, 7:16 AM EDT	Severe Thunderstorm Warning	DTX	Livingston, Washtenaw	59 min
Jun 19, 6:58 PM EDT	Severe Thunderstorm Warning	MQT	Baraga	32 min
Jun 19, 7:28 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Iron, Marquette	15 min
Jun 21, 4:55 AM EDT	Severe Thunderstorm Warning	MQT	Gogebic	20 min
Jun 21, 5:10 AM EDT	Severe Thunderstorm Warning	MQT	Gogebic, Ontonagon	20 min
Jun 24, 5:01 PM EDT	Severe Thunderstorm Warning	MQT	Dickinson	24 min
Jun 28, 1:56 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Schoolcraft	34 min
Jun 28, 2:01 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Luce, Schoolcraft	29 min
Jun 28, 2:35 PM EDT	Severe Thunderstorm Warning	MQT	Gogebic, Ontonagon	25 min
Jun 28, 2:51 PM EDT	Severe Thunderstorm Warning	MQT	Gogebic, Iron	39 min
Jun 28, 3:30 PM EDT	Severe Thunderstorm Warning	MQT	Iron	30 min
Jun 28, 3:44 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Dickinson, Marquette	31 min
Jun 28, 3:58 PM EDT	Severe Thunderstorm Warning	MQT	Iron	32 min
Jun 28, 4:15 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Marquette	30 min
Jun 28, 4:30 PM EDT	Severe Thunderstorm Warning	MQT	Dickinson, Iron	13 min
Jun 28, 5:23 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Menominee	22 min
Jun 28, 5:44 PM EDT	Severe Thunderstorm Warning	MQT	Delta	16 min
Jun 30, 12:59 AM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton, Ontonagon	31 min
Jun 30, 1:26 AM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	17 min
Jun 30, 3:36 AM EDT	Severe Thunderstorm Warning	MQT	Alger, Delta, Marquette, Schoolcraft	39 min
Jun 30, 6:09 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton, Ontonagon	36 min
Jun 30, 6:50 PM EDT	Severe Thunderstorm Warning	MQT	Houghton, Ontonagon	25 min
Jun 30, 6:56 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	34 min
Jun 30, 7:10 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton, Ontonagon	35 min
Jun 30, 7:24 PM EDT	Severe Thunderstorm Warning	MQT	Marquette	36 min
Jun 30, 7:37 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	38 min
Jun 30, 8:07 PM EDT	Severe Thunderstorm Warning	MQT	Marquette	23 min
Jun 30, 8:10 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton, Ontonagon	35 min
Jun 30, 8:37 PM EDT	Severe Thunderstorm Warning	MQT	Baraga	23 min
Jun 30, 9:35 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Marquette	25 min
Jun 30, 9:52 PM EDT	Severe Thunderstorm Warning	MQT	Alger	23 min
Jun 30, 10:10 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Schoolcraft	16 min
Jul 11, 6:38 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Schoolcraft	22 min
Jul 11, 6:58 PM EDT	Severe Thunderstorm Warning	MQT	Schoolcraft	13 min
Jul 11, 8:20 PM EDT	Severe Thunderstorm Warning	GRR	Mason, Oceana	55 min
Jul 11, 10:41 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	44 min
Jul 11, 11:14 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	46 min
Jul 11, 11:47 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Oakland	43 min
Jul 12, 12:37 AM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	23 min
Jul 18, 11:24 PM EDT	Severe Thunderstorm Warning	MQT	Ontonagon	36 min
Jul 18, 11:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	MQT	Houghton, Ontonagon	24 min
Jul 19, 12:09 AM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton	36 min
Jul 19, 12:37 AM EDT	Severe Thunderstorm Warning Considerable damage threat	MQT	Baraga, Marquette	19 min
Jul 19, 2:27 AM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	48 min
Jul 19, 3:10 AM EDT	Severe Thunderstorm Warning	MQT	Marquette	35 min
Jul 20, 1:06 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Saginaw	54 min
Jul 20, 1:22 PM EDT	Severe Thunderstorm Warning	APX	Crawford	38 min
Jul 20, 1:27 PM EDT	Severe Thunderstorm Warning	APX	Otsego	30 min
Jul 20, 1:58 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Lapeer, Tuscola	62 min
Jul 20, 2:23 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Lapeer, Oakland	67 min
Jul 20, 2:34 PM EDT	Severe Thunderstorm Warning	APX	Presque Isle	26 min
Jul 20, 2:37 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Sanilac, Tuscola	38 min
Jul 20, 2:50 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Sanilac, Tuscola	55 min
Jul 20, 2:54 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Monroe, Wayne	55 min
Jul 20, 3:10 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Macomb, Saint Clair	32 min
Jul 20, 5:25 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	50 min
Jul 21, 8:16 PM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	44 min
Jul 21, 8:33 PM EDT	Severe Thunderstorm Warning	GRR	Van Buren	20 min
Jul 21, 8:55 PM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	36 min
Jul 21, 9:18 PM EDT	Severe Thunderstorm Warning	IWX	Cass	42 min
Jul 21, 9:45 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Saint Joseph	30 min
Jul 23, 6:57 AM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass, Saint Joseph	63 min
Jul 23, 5:30 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Gladwin, Ogemaw	45 min
Jul 23, 6:13 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Gladwin	23 min
Jul 23, 8:43 PM EDT	Severe Thunderstorm Warning	GRR	Muskegon, Ottawa	92 min
Jul 23, 9:37 PM EDT	Severe Thunderstorm Warning	APX	Alcona	34 min
Jul 23, 9:39 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	51 min
Jul 23, 9:43 PM EDT	Severe Thunderstorm Warning	GRR	Kent	62 min
Jul 23, 10:16 PM EDT	Severe Thunderstorm Warning	GRR	Ionia, Montcalm	59 min
Jul 23, 10:17 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	58 min
Jul 23, 10:38 PM EDT	Severe Thunderstorm Warning	GRR	Eaton	50 min
Jul 23, 10:58 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Gratiot, Ingham	47 min
Jul 23, 11:14 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Saginaw, Shiawassee	48 min
Jul 24, 1:39 AM EDT	Severe Thunderstorm Warning	GRR	Kent, Muskegon, Ottawa	38 min
Aug 1, 2:45 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	54 min
Aug 2, 7:06 PM EDT	Severe Thunderstorm Warning	MQT	Gogebic, Ontonagon	39 min
Aug 2, 8:45 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	45 min
Aug 2, 9:01 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton	44 min
Aug 2, 9:26 PM EDT	Severe Thunderstorm Warning	MQT	Marquette	49 min
Aug 2, 9:31 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Iron	29 min
Aug 3, 9:46 AM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Leelanau, Manistee, Wexford	44 min
Aug 3, 10:31 AM EDT	Severe Thunderstorm Warning	APX	Missaukee, Wexford	44 min
Aug 3, 11:02 AM EDT	Severe Thunderstorm Warning	APX	Crawford, Kalkaska, Missaukee, Ogemaw, Oscoda, Roscommon	43 min
Aug 3, 11:06 AM EDT	Severe Thunderstorm Warning	GRR	Clare, Osceola	39 min
Aug 3, 11:41 AM EDT	Severe Thunderstorm Warning	APX	Alcona, Crawford, Iosco, Ogemaw, Oscoda, Roscommon	48 min
Aug 3, 1:24 PM EDT	Severe Thunderstorm Warning	GRR	Clare	28 min
Aug 3, 2:11 PM EDT	Severe Thunderstorm Warning	GRR	Gratiot, Isabella, Montcalm	64 min
Aug 3, 2:33 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	42 min
Aug 3, 2:48 PM EDT	Severe Thunderstorm Warning	GRR	Ionia	57 min
Aug 3, 3:04 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Gratiot	86 min
Aug 3, 3:08 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	56 min
Aug 3, 3:32 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw, Shiawassee	58 min
Aug 3, 3:36 PM EDT	Severe Thunderstorm Warning	GRR	Eaton, Ingham	84 min
Aug 3, 3:41 PM EDT	Severe Thunderstorm Warning	IWX	Berrien	64 min
Aug 3, 3:50 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Van Buren	85 min
Aug 3, 3:56 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	45 min
Aug 3, 3:59 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	61 min
Aug 3, 4:03 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	57 min
Aug 3, 4:19 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Saint Joseph	56 min
Aug 3, 4:23 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Lapeer, Livingston, Oakland, Shiawassee	52 min
Aug 3, 4:31 PM EDT	Severe Thunderstorm Warning	MQT	Alger, Luce, Schoolcraft	29 min
Aug 3, 4:33 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Saint Clair, Sanilac	42 min
Aug 3, 4:34 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	56 min
Aug 3, 4:51 PM EDT	Severe Thunderstorm Warning	GRR	Barry	54 min
Aug 3, 5:05 PM EDT	Severe Thunderstorm Warning	GRR	Calhoun	55 min
Aug 3, 5:09 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Saint Clair	66 min
Aug 3, 5:09 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Saint Joseph	51 min
Aug 3, 5:14 PM EDT	Severe Thunderstorm Warning	GRR	Ingham, Jackson	61 min
Aug 3, 5:18 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	57 min
Aug 3, 5:23 PM EDT	Severe Thunderstorm Warning	GRR	Eaton	21 min
Aug 3, 5:30 PM EDT	Severe Thunderstorm Warning	MQT	Luce, Schoolcraft	30 min
Aug 3, 5:37 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Washtenaw	53 min
Aug 3, 6:09 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Oakland	66 min
Aug 3, 6:24 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw, Wayne	66 min
Aug 20, 9:16 PM EDT	Severe Thunderstorm Warning	IWX	Saint Joseph	29 min
Aug 28, 7:12 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Iosco, Ogemaw	33 min
Aug 28, 9:46 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa	31 min
Aug 29, 1:47 PM EDT	Severe Thunderstorm Warning	GRR	Lake, Mecosta, Newaygo, Osceola	37 min
Aug 29, 2:32 PM EDT	Severe Thunderstorm Warning	GRR	Muskegon	58 min
Aug 29, 2:39 PM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	66 min
Aug 29, 2:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	GRR	Allegan, Ottawa	54 min
Aug 29, 3:01 PM EDT	Severe Thunderstorm Warning	GRR	Mecosta, Newaygo	59 min
Aug 29, 3:17 PM EDT	Severe Thunderstorm Warning Considerable damage threat	GRR	Allegan, Barry, Kent	58 min
Aug 29, 3:33 PM EDT	Severe Thunderstorm Warning	GRR	Clare, Isabella, Mecosta, Osceola	67 min
Aug 29, 3:37 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Saint Joseph	42 min
Aug 29, 3:40 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Calhoun, Kalamazoo, Van Buren	65 min
Aug 29, 3:47 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Clinton, Eaton, Gratiot, Ingham, Ionia and 1 more	88 min
Aug 29, 4:02 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Midland	73 min
Aug 29, 4:05 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Gladwin	70 min
Aug 29, 4:07 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Saint Joseph	38 min
Aug 29, 4:15 PM EDT	Severe Thunderstorm Warning	GRR	Calhoun, Eaton, Ingham, Jackson	90 min
Aug 29, 4:32 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Saginaw, Shiawassee	58 min
Aug 29, 4:42 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Hillsdale	48 min
Aug 29, 4:58 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Washtenaw	77 min
Aug 29, 5:15 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Huron, Saginaw, Tuscola	57 min
Aug 29, 5:21 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Monroe	84 min
Aug 29, 5:23 PM EDT	Severe Thunderstorm Warning Considerable damage threat	DTX	Genesee, Lapeer	67 min
Aug 29, 5:31 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Oakland, Wayne	89 min
Aug 29, 5:47 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Sanilac	57 min
Aug 29, 5:52 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair, Sanilac	68 min
Aug 29, 6:57 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	19 min
Sep 2, 5:38 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton	37 min
Sep 2, 6:13 PM EDT	Severe Thunderstorm Warning	MQT	Houghton, Ontonagon	32 min
Sep 2, 6:21 PM EDT	Severe Thunderstorm Warning	MQT	Gogebic	24 min
Sep 2, 6:33 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton	27 min
Sep 2, 6:48 PM EDT	Severe Thunderstorm Warning	MQT	Gogebic	42 min
Sep 2, 6:58 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Marquette	29 min
Sep 3, 3:34 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Iosco	41 min
Sep 20, 12:24 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Van Buren	66 min
Sep 20, 12:53 PM EDT	Severe Thunderstorm Warning	IWX	Berrien	37 min
Sep 20, 1:18 PM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	42 min
Sep 21, 3:55 AM EDT	Severe Thunderstorm Warning	MQT	Alger, Luce	35 min
Sep 21, 4:14 AM EDT	Severe Thunderstorm Warning	MQT	Luce	31 min
Sep 21, 4:15 AM EDT	Severe Thunderstorm Warning	APX	Chippewa	60 min
Sep 21, 7:59 AM EDT	Severe Thunderstorm Warning	APX	Gladwin, Ogemaw, Roscommon	31 min
Sep 21, 8:30 AM EDT	Severe Thunderstorm Warning	GRR	Kent, Montcalm, Newaygo	45 min
Sep 21, 8:31 AM EDT	Severe Thunderstorm Warning	GRR	Isabella, Mecosta	44 min
Sep 21, 8:35 AM EDT	Severe Thunderstorm Warning	APX	Arenac, Iosco, Ogemaw	40 min
Sep 21, 8:51 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot, Isabella	39 min
Sep 21, 9:01 AM EDT	Severe Thunderstorm Warning	GRR	Kent	27 min
Sep 21, 9:10 AM EDT	Severe Thunderstorm Warning	GRR	Ionia, Montcalm	50 min
Sep 21, 9:11 AM EDT	Severe Thunderstorm Warning	DTX	Bay	38 min
Sep 21, 9:17 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot	43 min
Sep 21, 9:22 AM EDT	Severe Thunderstorm Warning	DTX	Huron, Tuscola	53 min
Sep 21, 9:24 AM EDT	Severe Thunderstorm Warning	DTX	Bay, Midland, Saginaw	46 min
Sep 21, 9:36 AM EDT	Severe Thunderstorm Warning	GRR	Clinton	54 min
Sep 21, 9:38 AM EDT	Severe Thunderstorm Warning	DTX	Tuscola	43 min
Sep 21, 10:28 AM EDT	Severe Thunderstorm Warning	GRR	Eaton, Ingham	35 min
Sep 21, 10:46 AM EDT	Severe Thunderstorm Warning	GRR	Jackson	59 min
Sep 21, 11:15 AM EDT	Severe Thunderstorm Warning	DTX	Macomb, Saint Clair	30 min
Sep 21, 11:19 AM EDT	Severe Thunderstorm Warning	DTX	Oakland, Wayne	26 min
Sep 21, 12:09 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	28 min
Sep 25, 8:45 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Muskegon, Ottawa	62 min
Sep 25, 9:14 PM EDT	Severe Thunderstorm Warning	GRR	Van Buren	40 min
Oct 12, 8:46 AM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton	29 min
Nov 5, 2:39 PM EDT	Severe Thunderstorm Warning	GRR	Mason, Muskegon, Oceana	96 min
Nov 5, 2:49 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa, Van Buren	86 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

42 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2021 2023

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.