Weather alerts in Iowa, 2012
1,277 weather alerts in 2012, 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 2012. Tap one for its archive.
- Alerts
- 1,277
- Warnings
- 609
- Watches
- 118
- Advisories
- 238
- Busiest month
- May334 alerts
- Busiest day
- May 4, 201269 alerts
Over time
By month
The alerts
1,277 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.
- Monona County142
- Pottawattamie County133
- Clay County132
- Harrison County130
- Scott County130
- Muscatine County127
- Cedar County126
- Louisa County124
- Mills County122
- Linn County120
- O'Brien County120
- Woodbury County119
- Sioux County118
- Cherokee County117
- Johnson County116
- Montgomery County115
- Page County115
- Benton County115
- Plymouth County115
- Dickinson County114
- Clinton County114
- Delaware County113
- Kossuth County112
- Buchanan County111
- Buena Vista County111
- Des Moines County111
- Fremont County110
- Washington County110
- Lyon County110
- Iowa County109
- Jones County109
- Ida County109
- Shelby County108
- Henry County107
- Clayton County105
- Keokuk County105
- Palo Alto County105
- Emmet County104
- Sac County104
- Osceola County104
59 more counties
- Jackson County104
- Dubuque County103
- Calhoun County102
- Pocahontas County101
- Lee County98
- Jefferson County96
- Carroll County95
- Cass County95
- Crawford County95
- Fayette County94
- Humboldt County94
- Madison County94
- Adair County93
- Adams County93
- Allamakee County93
- Winneshiek County93
- Van Buren County92
- Cerro Gordo County92
- Guthrie County92
- Union County91
- Webster County91
- Butler County90
- Greene County90
- Jasper County90
- Ringgold County90
- Audubon County89
- Hancock County89
- Polk County89
- Winnebago County89
- Worth County89
- Dallas County88
- Chickasaw County87
- Grundy County87
- Marion County87
- Taylor County87
- Black Hawk County86
- Floyd County85
- Howard County85
- Wright County85
- Boone County84
- Franklin County84
- Poweshiek County84
- Story County84
- Mahaska County83
- Mitchell County82
- Bremer County82
- Hamilton County81
- Warren County81
- Decatur County80
- Marshall County80
- Monroe County80
- Hardin County79
- Tama County79
- Clarke County78
- Wapello County73
- Lucas County71
- Appanoose County67
- Wayne County64
- Davis County60
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.