Alert archive / Iowa / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Iowa, 2023
36 severe thunderstorm watches in 2023. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Severe Thunderstorm Watches
- 36
- Busiest month
- July14 severe thunderstorm watches
- Busiest day
- May 7, 20233 severe thunderstorm watches
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 6:34 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 14 more | 6 hr |
| Apr 4, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Benton, Cedar, Clarke, Clinton, Davis and 27 more | 6 hr |
| Apr 5, 3:57 AM CDT | Severe Thunderstorm Watch | SPC | Clinton, Des Moines, Louisa, Muscatine, Scott | 8 hr |
| Apr 14, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Pottawattamie | 7 hr |
| Apr 19, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Hamilton and 11 more | 7 hr |
| Apr 19, 10:58 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Benton, Black Hawk, Boone, Bremer, Buchanan and 23 more | 7 hr |
| Apr 19, 11:53 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 6 hr |
| May 6, 8:50 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren | 7 hr |
| May 7, 4:10 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 42 more | 10 hr |
| May 7, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 6 hr |
| Jun 17, 3:13 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 34 more | 7 hr |
| Jun 24, 3:10 AM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Clay, Crawford, Dickinson, Harrison, Ida and 11 more | 4 hr |
| Jun 24, 6:28 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clayton, Clinton, Delaware, Des Moines, Dubuque and 12 more | 8 hr |
| Jun 24, 10:14 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 21 more | 5 hr |
| Jun 29, 5:49 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 26 more | 6 hr |
| Jun 29, 10:34 AM CDT | Severe Thunderstorm Watch | SPC | Muscatine, Scott | 6 hr |
| Jul 4, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | Harrison, Ida, Mills, Monona, Pottawattamie, Shelby and 1 more | 6 hr |
| Jul 4, 6:55 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 8 more | 6 hr |
| Jul 10, 3:12 PM CDT | Severe Thunderstorm Watch | SPC | Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo, Cherokee and 22 more | 7 hr |
| Jul 10, 6:51 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 4 hr |
| Jul 12, 12:10 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Fremont, Harrison, Ida and 10 more | 7 hr |
| Jul 12, 5:15 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Boone and 51 more | 6 hr |
| Jul 13, 5:22 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola | 7 hr |
| Jul 14, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 8 more | 6 hr |
| Jul 24, 2:08 AM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 4 more | 6 hr |
| Jul 24, 5:38 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Cass, Ringgold, Taylor | 5 hr |
| Jul 26, 1:31 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Winneshiek | 4 hr |
| Jul 28, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 52 more | 7 hr |
| Jul 28, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 7 more | 7 hr |
| Jul 29, 7:16 AM CDT | Severe Thunderstorm Watch | SPC | Fremont, Page | 6 hr |
| Aug 11, 12:37 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Clarke, Decatur, Fremont, Mills, Montgomery and 4 more | 7 hr |
| Aug 11, 2:28 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 8 hr |
| Aug 11, 4:46 PM CDT | Severe Thunderstorm Watch | SPC | Butler, Cerro Gordo, Clay, Dickinson, Emmet, Franklin and 8 more | 5 hr |
| Aug 11, 9:23 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Decatur, Ringgold, Wayne | 7 hr |
| Sep 23, 1:34 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 34 more | 8 hr |
| Oct 3, 5:03 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Ida, Lyon, Mills, Monona and 7 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County11
- Mills County11
- Pottawattamie County10
- Montgomery County10
- Page County10
- Des Moines County9
- Louisa County9
- Adams County9
- Franklin County8
- Decatur County8
- Henry County8
- Lee County8
- Muscatine County8
- Scott County8
- Clay County8
- Humboldt County8
- Ringgold County8
- Taylor County8
- Cass County8
- Harrison County8
- Shelby County8
- Monona County8
- Butler County7
- Chickasaw County7
- Floyd County7
- Clarke County7
- Jasper County7
- Jefferson County7
- Van Buren County7
- Warren County7
- Washington County7
- Dickinson County7
- Palo Alto County7
- Plymouth County7
- Webster County7
- Wright County7
- Dallas County7
- Madison County7
- Union County7
- Adair County7
59 more counties
- Audubon County7
- Guthrie County7
- Calhoun County7
- Sac County7
- Woodbury County7
- Black Hawk County6
- Bremer County6
- Cerro Gordo County6
- Grundy County6
- Hamilton County6
- Hardin County6
- Worth County6
- Cedar County6
- Clinton County6
- Johnson County6
- Keokuk County6
- Marion County6
- Marshall County6
- Poweshiek County6
- Tama County6
- Wayne County6
- Emmet County6
- Kossuth County6
- O'Brien County6
- Pocahontas County6
- Polk County6
- Ida County6
- Allamakee County5
- Dubuque County5
- Howard County5
- Mitchell County5
- Winneshiek County5
- Appanoose County5
- Benton County5
- Davis County5
- Jackson County5
- Jones County5
- Linn County5
- Lucas County5
- Mahaska County5
- Buena Vista County5
- Cherokee County5
- Lyon County5
- Osceola County5
- Sioux County5
- Boone County5
- Carroll County5
- Crawford County5
- Greene County5
- Hancock County5
- Buchanan County4
- Delaware County4
- Iowa County4
- Monroe County4
- Wapello County4
- Story County4
- Winnebago County4
- Clayton County3
- Fayette County3
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. Warning verification from the Mesonet's Cow. Rebuilt daily.