Weather alerts in Iowa, 2007
1,885 weather alerts in 2007, 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 2007. Tap one for its archive.
- Alerts
- 1,885
- Warnings
- 1,139
- Watches
- 188
- Advisories
- 323
- Busiest month
- August502 alerts
- Busiest day
- April 3, 200773 alerts
Over time
By month
The alerts
1,885 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.
- Linn County181
- Webster County172
- Johnson County171
- Black Hawk County167
- Monona County164
- Boone County163
- Dallas County158
- Humboldt County158
- Hamilton County157
- Buchanan County157
- Jones County157
- Butler County156
- Delaware County156
- Calhoun County155
- Scott County155
- Wright County154
- Pottawattamie County153
- Greene County153
- Hardin County153
- Pocahontas County153
- Cedar County153
- Louisa County152
- Harrison County151
- Decatur County151
- Franklin County151
- Clinton County151
- Clarke County150
- Polk County150
- Muscatine County149
- Sac County149
- Story County149
- Warren County149
- Benton County149
- Madison County147
- Fremont County146
- Crawford County146
- Guthrie County146
- Bremer County146
- Grundy County146
- Marshall County146
59 more counties
- Dubuque County146
- Mills County145
- Page County145
- Iowa County145
- Montgomery County144
- Shelby County144
- Carroll County144
- Cerro Gordo County144
- Woodbury County143
- Cass County143
- Jackson County143
- Adair County142
- Ringgold County142
- Lucas County142
- Tama County142
- Clayton County142
- Audubon County141
- Marion County140
- Wayne County140
- Washington County139
- Kossuth County139
- Union County138
- Worth County138
- Keokuk County138
- Plymouth County137
- Buena Vista County137
- Mahaska County136
- Poweshiek County136
- Henry County135
- Monroe County135
- Jasper County134
- Jefferson County133
- Sioux County133
- Cherokee County133
- Appanoose County133
- Ida County132
- Wapello County132
- Des Moines County131
- Hancock County131
- Clay County131
- Palo Alto County130
- Dickinson County130
- Lee County129
- Emmet County129
- O'Brien County129
- Fayette County129
- Van Buren County128
- Taylor County127
- Winnebago County127
- Adams County126
- Davis County125
- Allamakee County125
- Howard County125
- Chickasaw County124
- Osceola County123
- Lyon County122
- Floyd County121
- Winneshiek County119
- Mitchell County118
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.