Weather alerts in Michigan, December 2020

121 weather alerts in December 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in December 2020. Tap one for its archive.

Alerts: 121
Warnings: 22
Watches: 12
Advisories: 78
Busiest day: December 11, 202013 alerts

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
Nov 30, 10:39 PM EST	Small Craft Advisory	GRR		36 hr
Dec 1, 10:48 AM EST	Small Craft Advisory	APX		3 days
Dec 1, 9:47 PM EST	Small Craft Advisory	MQT		62 hr
Dec 2, 2:35 PM EST	Small Craft Advisory	GRR		61 hr
Dec 2, 3:32 PM EST	Small Craft Advisory	DTX		36 hr
Dec 3, 9:51 PM EST	Low Water Advisory	DTX		6 hr
Dec 4, 3:43 AM EST	Small Craft Advisory	APX		19 hr
Dec 4, 3:48 AM EST	Small Craft Advisory	DTX		12 hr
Dec 4, 3:52 PM EST	Small Craft Advisory	DTX		24 hr
Dec 7, 3:41 PM EST	Small Craft Advisory	GRR		43 hr
Dec 7, 3:43 PM EST	Small Craft Advisory	APX		55 hr
Dec 7, 4:49 PM EST	Small Craft Advisory	MQT		56 hr
Dec 8, 3:02 AM EST	Gale Warning	MQT		16 hr
Dec 8, 9:35 AM EST	Small Craft Advisory	DTX		18 hr
Dec 8, 4:28 PM EST	Small Craft Advisory	APX		30 hr
Dec 9, 10:44 PM EST	Small Craft Advisory	MQT		3 days
Dec 10, 1:06 AM EST	Freezing Fog Advisory	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more	8 hr
Dec 10, 1:25 AM EST	Freezing Fog Advisory	IWX	Branch, Hillsdale, Saint Joseph	9 hr
Dec 10, 2:16 AM EST	Freezing Fog Advisory	DTX	Genesee, Lenawee, Livingston, Monroe, Oakland, Shiawassee and 2 more	8 hr
Dec 10, 2:54 PM EST	Winter Storm Watch	GRR	Clare, Isabella, Lake, Mason, Mecosta, Newaygo and 2 more	13 hr
Dec 10, 4:05 PM EST	Winter Storm Watch	APX	Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 16 more	23 hr
Dec 10, 9:56 PM EST	Gale Watch	DTX		18 hr
Dec 11, 3:27 AM EST	Gale Watch	APX		8 hr
Dec 11, 3:27 AM EST	Small Craft Advisory	APX		55 hr
Dec 11, 3:28 AM EST	Winter Storm Warning	GRR	Clare, Lake, Mason, Mecosta, Newaygo, Oceana and 1 more	41 hr
Dec 11, 3:28 AM EST	Winter Weather Advisory	GRR	Isabella, Montcalm, Muskegon	40 hr
Dec 11, 3:29 AM EST	Small Craft Advisory	GRR		58 hr
Dec 11, 4:27 AM EST	Small Craft Advisory	DTX		53 hr
Dec 11, 11:10 AM EST	Gale Warning	APX		37 hr
Dec 11, 2:43 PM EST	Winter Storm Warning	APX	Alcona, Alpena, Antrim, Benzie, Cheboygan, Crawford and 12 more	30 hr
Dec 11, 2:43 PM EST	Winter Weather Advisory	APX	Arenac, Charlevoix, Chippewa, Emmet, Gladwin, Iosco and 1 more	30 hr
Dec 11, 2:51 PM EST	Lakeshore Flood Advisory	APX	Alcona, Alpena, Arenac, Cheboygan, Iosco, Presque Isle	37 hr
Dec 11, 3:30 PM EST	Gale Warning	DTX		32 hr
Dec 11, 3:39 PM EST	Lakeshore Flood Advisory	IWX		36 hr
Dec 11, 8:35 PM EST	Lakeshore Flood Advisory	DTX	Bay	19 hr
Dec 12, 3:58 AM EST	Gale Warning	MQT		18 hr
Dec 12, 10:01 AM EST	Mesoscale Discussion	SPC	Alcona, Alpena, Antrim, Benzie, Cheboygan, Crawford and 11 more	4 hr
Dec 12, 1:54 PM EST	Mesoscale Discussion	SPC	Alcona, Alpena, Antrim, Cheboygan, Crawford, Kalkaska and 6 more	4 hr
Dec 12, 3:24 PM EST	Special Weather Statement	DTX	Saint Clair	66 min
Dec 12, 4:59 PM EST	Small Craft Advisory	MQT		11 hr
Dec 13, 4:03 AM EST	Gale Warning	MQT		37 hr
Dec 13, 10:38 AM EST	Small Craft Advisory	APX		45 hr
Dec 13, 10:38 AM EST	Small Craft Advisory	MQT		38 hr
Dec 13, 3:28 PM EST	Small Craft Advisory	GRR		34 hr
Dec 13, 3:29 PM EST	Gale Warning	DTX		31 hr
Dec 13, 3:29 PM EST	Small Craft Advisory	DTX		37 hr
Dec 13, 3:53 PM EST	Winter Weather Advisory	MQT	Houghton, Keweenaw, Ontonagon	22 hr
Dec 13, 4:52 PM EST	Heavy Freezing Spray Warning	MQT		5 hr
Dec 14, 3:14 AM EST	Gale Warning	APX		24 hr
Dec 14, 3:18 AM EST	Winter Weather Advisory	APX	Chippewa	24 hr
Dec 14, 11:46 AM EST	Small Craft Advisory	MQT		21 hr
Dec 14, 10:01 PM EST	Small Craft Advisory	MQT		4 hr
Dec 15, 4:38 PM EST	Small Craft Advisory	APX		34 hr
Dec 15, 8:30 PM EST	Small Craft Advisory	DTX		32 hr
Dec 16, 5:03 AM EST	Winter Weather Advisory	APX	Chippewa, Mackinac	6 hr
Dec 16, 6:56 AM EST	Lakeshore Flood Statement	DTX	Macomb	8 hr
Dec 16, 6:56 AM EST	Lakeshore Flood Advisory	DTX	Monroe, Wayne	8 hr
Dec 17, 3:09 AM EST	Small Craft Advisory	APX		54 hr
Dec 17, 4:10 PM EST	Small Craft Advisory	GRR		46 hr
Dec 17, 4:10 PM EST	Gale Watch	MQT		5 hr
Dec 17, 9:35 PM EST	Gale Warning	MQT		27 hr
Dec 17, 9:35 PM EST	Small Craft Advisory	MQT		42 hr
Dec 18, 3:57 AM EST	Lakeshore Flood Advisory	MQT	Schoolcraft	24 hr
Dec 19, 9:48 PM EST	Small Craft Advisory	MQT		31 hr
Dec 20, 3:55 AM EST	Small Craft Advisory	APX		24 hr
Dec 20, 4:31 AM EST	Small Craft Advisory	GRR		55 hr
Dec 21, 3:44 AM EST	Gale Watch	DTX		30 hr
Dec 21, 5:29 AM EST	Small Craft Advisory	MQT		30 hr
Dec 21, 2:04 PM EST	Small Craft Advisory	APX		20 hr
Dec 21, 3:32 PM EST	Gale Watch	GRR		12 hr
Dec 21, 4:29 PM EST	Gale Watch	MQT		13 hr
Dec 21, 7:37 PM EST	Special Weather Statement	DTX	Lapeer, Macomb, Oakland, Saint Clair, Sanilac	53 min
Dec 22, 3:32 AM EST	Gale Warning	GRR		51 hr
Dec 22, 4:07 AM EST	Gale Watch	APX		6 hr
Dec 22, 4:07 AM EST	Gale Warning	APX		54 hr
Dec 22, 5:19 AM EST	Gale Warning	MQT		57 hr
Dec 22, 9:34 AM EST	Gale Warning	DTX		51 hr
Dec 22, 11:08 AM EST	Gale Watch	MQT		18 hr
Dec 22, 1:06 PM EST	Lakeshore Flood Advisory	MQT	Alger, Delta, Gogebic, Houghton, Keweenaw, Marquette and 2 more	51 hr
Dec 22, 3:48 PM EST	Small Craft Advisory	DTX		42 hr
Dec 22, 4:27 PM EST	Small Craft Advisory	APX		4 days
Dec 22, 4:49 PM EST	Lakeshore Flood Advisory	APX	Charlevoix, Mackinac	38 hr
Dec 23, 3:47 AM EST	Winter Storm Warning	MQT	Gogebic	45 hr
Dec 23, 3:47 AM EST	Winter Weather Advisory	MQT	Alger, Baraga, Houghton, Keweenaw, Ontonagon	51 hr
Dec 23, 3:59 AM EST	Winter Weather Advisory	GRR	Allegan, Barry, Kalamazoo, Kent, Lake, Mason and 5 more	59 hr
Dec 23, 4:35 AM EST	Lakeshore Flood Warning	MQT	Schoolcraft	24 hr
Dec 23, 4:49 AM EST	Small Craft Advisory	MQT		4 days
Dec 23, 4:49 AM EST	Heavy Freezing Spray Warning	MQT		41 hr
Dec 23, 2:36 PM EST	Winter Storm Watch	IWX	Cass	13 hr
Dec 23, 2:36 PM EST	Winter Weather Advisory	IWX	Saint Joseph	48 hr
Dec 23, 3:57 PM EST	Winter Weather Advisory	APX	Antrim, Benzie, Charlevoix, Cheboygan, Crawford, Emmet and 6 more	43 hr
Dec 23, 6:15 PM EST	Mesoscale Discussion	SPC	Gogebic	6 hr
Dec 24, 3:15 AM EST	Winter Storm Warning	IWX	Cass	35 hr
Dec 24, 7:00 AM EST	Small Craft Advisory	GRR		57 hr
Dec 24, 3:15 PM EST	Winter Storm Warning	GRR	Allegan, Van Buren	24 hr
Dec 24, 9:32 PM EST	Small Craft Advisory	DTX		30 hr
Dec 25, 7:51 PM EST	Low Water Advisory	DTX		8 hr
Dec 27, 3:29 AM EST	Gale Watch	APX		12 hr
Dec 27, 3:29 AM EST	Small Craft Advisory	APX		48 hr
Dec 27, 3:32 AM EST	Small Craft Advisory	GRR		51 hr
Dec 27, 4:21 AM EST	Small Craft Advisory	MQT		63 hr
Dec 27, 4:24 AM EST	Winter Weather Advisory	MQT	Menominee	18 hr
Dec 27, 7:03 AM EST	Small Craft Advisory	DTX		51 hr
Dec 27, 3:13 PM EST	Gale Warning	APX		19 hr
Dec 27, 3:15 PM EST	Winter Weather Advisory	MQT	Alger, Houghton, Luce, Ontonagon, Schoolcraft	34 hr
Dec 28, 4:36 AM EST	Winter Weather Advisory	APX	Antrim, Chippewa, Crawford, Kalkaska, Oscoda, Otsego	22 hr
Dec 28, 11:44 AM EST	Small Craft Advisory	MQT		12 hr
Dec 28, 3:28 PM EST	Winter Weather Advisory	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more	44 hr
Dec 29, 1:50 AM EST	Special Weather Statement	DTX	Washtenaw, Wayne	85 min
Dec 29, 3:04 AM EST	Winter Weather Advisory	APX	Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 19 more	33 hr
Dec 29, 3:27 AM EST	Small Craft Advisory	APX		55 hr
Dec 29, 3:42 AM EST	Winter Weather Advisory	IWX	Branch, Cass, Hillsdale, Saint Joseph	29 hr
Dec 29, 3:57 AM EST	Winter Weather Advisory	DTX	Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more	32 hr
Dec 29, 4:06 AM EST	Winter Weather Advisory	MQT	Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 7 more	39 hr
Dec 29, 4:26 AM EST	Small Craft Advisory	MQT		57 hr
Dec 29, 7:20 AM EST	Small Craft Advisory	GRR		51 hr
Dec 29, 10:04 AM EST	Small Craft Advisory	DTX		42 hr
Dec 29, 8:50 PM EST	Mesoscale Discussion	SPC	Allegan, Barry, Branch, Calhoun, Cass, Clare and 33 more	4 hr
Dec 30, 2:15 AM EST	Mesoscale Discussion	SPC	Allegan, Barry, Berrien, Branch, Calhoun, Cass and 20 more	6 hr
Dec 30, 4:07 AM EST	Gale Warning	MQT		18 hr
Dec 30, 10:06 PM EST	Small Craft Advisory	MQT		3 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Mesoscale Discussion	5
Special Weather Statement	3
Winter
Winter Storm Warning	5
Winter Storm Watch	3
Winter Weather Advisory	17
Fog and smoke
Freezing Fog Advisory	3
Coast and beach
Lakeshore Flood Warning	1
Lakeshore Flood Advisory	7
Lakeshore Flood Statement	1
Marine
Gale Warning	14
Heavy Freezing Spray Warning	2
Gale Watch	9
Low Water Advisory	2
Small Craft Advisory	49

By county

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

43 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2019 2021

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. Rebuilt daily.