Weather alerts in Iowa, 2026
2,109 weather alerts in 2026, 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 2026. Tap one for its archive.
- Alerts
- 2,109
- Warnings
- 1,285
- Watches
- 242
- Advisories
- 189
- Busiest month
- April422 alerts
- Busiest day
- May 18, 202688 alerts
Over time
By month
The alerts
2,109 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.
- Louisa County191
- Johnson County183
- Muscatine County179
- Scott County175
- Polk County173
- Linn County171
- Washington County171
- Cedar County167
- Fremont County162
- Pottawattamie County161
- Clinton County161
- Montgomery County158
- Jasper County156
- Story County156
- Jones County156
- Jackson County155
- Marshall County152
- Marion County151
- Mills County150
- Iowa County149
- Harrison County145
- Henry County145
- Page County143
- Adams County143
- Sioux County143
- Delaware County142
- Dubuque County142
- Keokuk County142
- Lucas County141
- Adair County140
- Black Hawk County140
- Lee County140
- Des Moines County139
- Taylor County138
- Warren County138
- Boone County137
- Hardin County136
- Monroe County136
- Benton County136
- Cass County135
59 more counties
- Grundy County135
- Jefferson County135
- Mahaska County134
- Wayne County134
- Buchanan County134
- Ringgold County133
- Tama County133
- Dallas County132
- Plymouth County132
- Madison County131
- O'Brien County131
- Lyon County129
- Union County129
- Hamilton County128
- Poweshiek County127
- Shelby County126
- Webster County126
- Van Buren County125
- Guthrie County124
- Osceola County123
- Franklin County123
- Cherokee County123
- Decatur County122
- Clarke County121
- Howard County121
- Butler County120
- Cerro Gordo County119
- Wapello County119
- Kossuth County119
- Appanoose County118
- Woodbury County117
- Winneshiek County117
- Hancock County116
- Humboldt County116
- Floyd County116
- Audubon County115
- Calhoun County115
- Bremer County114
- Greene County114
- Clay County114
- Monona County113
- Winnebago County113
- Worth County113
- Buena Vista County112
- Wright County111
- Carroll County110
- Pocahontas County109
- Chickasaw County109
- Clayton County109
- Allamakee County109
- Mitchell County108
- Emmet County108
- Palo Alto County107
- Dickinson County106
- Davis County104
- Fayette County101
- Crawford County100
- Ida County100
- Sac County99
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
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.