Weather alerts in Iowa, 2023
1,661 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 1,661
- Warnings
- 795
- Watches
- 113
- Advisories
- 260
- Busiest month
- July303 alerts
- Busiest day
- March 31, 202395 alerts
Over time
By month
The alerts
1,661 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.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 540 |
| Tornado Warning | 98 |
| Severe Thunderstorm Watch | 36 |
| Tornado Watch | 11 |
| Mesoscale Discussion | 136 |
| Special Weather Statement | 357 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 30 |
| River Flood Warning | 40 |
| Flood Watch | 3 |
| River Flood Watch | 7 |
| Areal Flood Advisory | 12 |
| Winter | |
| Blizzard Warning | 3 |
| Ice Storm Warning | 7 |
| Winter Storm Warning | 20 |
| Winter Storm Watch | 24 |
| Winter Weather Advisory | 68 |
| Heat | |
| Excessive Heat Warning | 10 |
| Excessive Heat Watch | 8 |
| Heat Advisory | 19 |
| Cold | |
| Freeze Warning | 20 |
| Freeze Watch | 8 |
| Frost Advisory | 18 |
| Wind Chill Advisory | 19 |
| Wind and dust | |
| Wind Advisory | 38 |
| Fire | |
| Red Flag Warning | 23 |
| Fire Weather Watch | 16 |
| Fog and smoke | |
| Dense Fog Advisory | 86 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clinton County147
- Johnson County139
- Jackson County137
- Pottawattamie County137
- Scott County136
- Sioux County135
- Linn County131
- Harrison County130
- Plymouth County127
- Cedar County126
- Dubuque County126
- Muscatine County124
- Washington County124
- Monona County123
- Lee County123
- Jones County122
- Louisa County122
- Benton County120
- Des Moines County118
- Delaware County117
- Fremont County116
- O'Brien County115
- Mills County115
- Jefferson County114
- Iowa County113
- Buchanan County111
- Jasper County109
- Marshall County109
- Henry County108
- Lyon County107
- Woodbury County106
- Marion County106
- Van Buren County105
- Osceola County104
- Adair County103
- Polk County103
- Keokuk County102
- Tama County102
- Cherokee County101
- Clay County98
59 more counties
- Poweshiek County98
- Story County98
- Page County98
- Shelby County97
- Union County97
- Cass County96
- Montgomery County96
- Dickinson County95
- Boone County95
- Hardin County95
- Floyd County94
- Black Hawk County93
- Buena Vista County93
- Mahaska County93
- Franklin County92
- Hancock County92
- Butler County91
- Grundy County91
- Kossuth County91
- Pocahontas County91
- Wapello County91
- Madison County90
- Mitchell County89
- Palo Alto County89
- Greene County89
- Chickasaw County88
- Calhoun County88
- Cerro Gordo County88
- Webster County88
- Adams County88
- Warren County88
- Crawford County86
- Clayton County85
- Ida County85
- Carroll County85
- Humboldt County85
- Clarke County85
- Sac County84
- Guthrie County84
- Monroe County84
- Howard County83
- Bremer County83
- Audubon County83
- Lucas County83
- Ringgold County83
- Dallas County83
- Winnebago County82
- Winneshiek County81
- Worth County81
- Wright County81
- Hamilton County81
- Fayette County80
- Decatur County80
- Davis County79
- Taylor County79
- Emmet County76
- Allamakee County75
- Appanoose County74
- Wayne County72
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.