Weather alerts in Michigan, 2011
3,079 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 3,079
- Warnings
- 1,298
- Watches
- 230
- Advisories
- 1,025
- Busiest month
- May501 alerts
- Busiest day
- June 22, 201182 alerts
Over time
By month
The alerts
3,079 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.
- Ingham County217
- Kent County215
- Calhoun County201
- Jackson County197
- Kalamazoo County197
- Barry County188
- Eaton County188
- Clinton County182
- Allegan County179
- Van Buren County170
- Ionia County167
- Cass County163
- Saint Joseph County160
- Ottawa County159
- Gratiot County147
- Newaygo County147
- Branch County147
- Montcalm County144
- Hillsdale County142
- Isabella County136
- Muskegon County132
- Wayne County132
- Mecosta County131
- Washtenaw County128
- Lenawee County127
- Monroe County126
- Oceana County122
- Saginaw County120
- Lake County119
- Mason County119
- Shiawassee County118
- Livingston County116
- Oakland County116
- Genesee County115
- Macomb County113
- Osceola County111
- Saint Clair County111
- Houghton County104
- Clare County103
- Bay County102
43 more counties
- Lapeer County98
- Sanilac County96
- Tuscola County96
- Midland County93
- Huron County89
- Ontonagon County88
- Manistee County84
- Alger County82
- Marquette County82
- Berrien County81
- Antrim County79
- Keweenaw County75
- Kalkaska County74
- Iron County74
- Baraga County73
- Gogebic County73
- Grand Traverse County73
- Benzie County72
- Wexford County72
- Arenac County71
- Crawford County69
- Leelanau County68
- Otsego County66
- Gladwin County66
- Dickinson County66
- Luce County64
- Alcona County63
- Missaukee County62
- Menominee County62
- Delta County61
- Emmet County59
- Roscommon County59
- Alpena County58
- Iosco County58
- Oscoda County58
- Schoolcraft County57
- Cheboygan County57
- Ogemaw County57
- Presque Isle County55
- Montmorency County54
- Charlevoix County22
- Chippewa County16
- Mackinac County14
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.