Weather alerts in Michigan, 2020
3,115 weather alerts in 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 2020. Tap one for its archive.
- Alerts
- 3,115
- Warnings
- 1,101
- Watches
- 197
- Advisories
- 976
- Busiest month
- August476 alerts
- Busiest day
- July 19, 2020105 alerts
Over time
By month
The alerts
3,115 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegan County147
- Saint Clair County141
- Van Buren County137
- Ottawa County135
- Wayne County131
- Huron County122
- Muskegon County118
- Monroe County117
- Cass County115
- Saint Joseph County114
- Macomb County111
- Washtenaw County110
- Oceana County109
- Charlevoix County106
- Kalamazoo County105
- Kent County105
- Branch County104
- Manistee County100
- Calhoun County100
- Oakland County99
- Sanilac County98
- Tuscola County98
- Schoolcraft County96
- Livingston County96
- Barry County96
- Hillsdale County95
- Jackson County94
- Mason County92
- Emmet County92
- Ontonagon County92
- Eaton County92
- Benzie County91
- Ingham County91
- Ionia County91
- Lenawee County91
- Saginaw County90
- Alger County90
- Bay County89
- Iron County89
- Mackinac County88
43 more counties
- Dickinson County88
- Houghton County87
- Gogebic County87
- Newaygo County87
- Antrim County86
- Leelanau County86
- Genesee County85
- Menominee County85
- Montcalm County84
- Clinton County83
- Shiawassee County83
- Marquette County81
- Chippewa County79
- Mecosta County79
- Gratiot County78
- Lapeer County78
- Delta County77
- Isabella County77
- Presque Isle County75
- Midland County74
- Grand Traverse County73
- Baraga County70
- Otsego County69
- Osceola County69
- Berrien County69
- Kalkaska County68
- Cheboygan County67
- Clare County66
- Wexford County64
- Crawford County62
- Gladwin County62
- Alpena County60
- Montmorency County60
- Lake County60
- Oscoda County59
- Arenac County57
- Iosco County57
- Roscommon County55
- Luce County55
- Missaukee County54
- Ogemaw County53
- Alcona County51
- Keweenaw County45
The busiest days
Days with the most alerts issued, by UTC date.
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. Rebuilt daily.