Alert archive / Iowa / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Iowa, 2024
48 severe thunderstorm watches in 2024. 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 2024. Tap one for its archive.
- Severe Thunderstorm Watches
- 48
- Busiest month
- July14 severe thunderstorm watches
- Busiest day
- May 24, 20245 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 |
|---|---|---|---|---|
| Mar 13, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Lee, Van Buren | 7 hr |
| May 19, 6:25 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Cass, Clarke, Decatur, Fremont and 10 more | 8 hr |
| May 20, 6:31 PM CDT | Severe Thunderstorm Watch | SPC | Harrison, Monona, Pottawattamie, Shelby | 5 hr |
| May 20, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cerro Gordo, Cherokee, Clay, Crawford, Dickinson and 19 more | 5 hr |
| May 20, 11:33 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 9 hr |
| May 21, 6:15 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 45 more | 7 hr |
| May 23, 8:43 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Harrison, Ida, Monona and 6 more | 7 hr |
| May 24, 1:33 AM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page | 4 hr |
| May 24, 2:44 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 60 more | 7 hr |
| May 24, 6:07 AM CDT | Severe Thunderstorm Watch | SPC | Chickasaw, Clayton, Clinton, Fayette, Floyd, Jackson and 1 more | 9 hr |
| May 24, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Jefferson, Lee, Van Buren | 10 hr |
| May 25, 9:46 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Page, Taylor | 4 hr |
| Jun 7, 5:52 PM CDT | Severe Thunderstorm Watch | SPC | Fremont | 7 hr |
| Jun 12, 7:26 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Cass, Crawford, Fremont, Harrison, Mills and 5 more | 4 hr |
| Jun 13, 2:59 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Des Moines and 22 more | 10 hr |
| Jun 15, 7:28 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 30 more | 7 hr |
| Jun 16, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | Clinton, Jackson | 5 hr |
| Jun 17, 3:09 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Buena Vista, Cerro Gordo, Cherokee, Chickasaw, Clay and 21 more | 7 hr |
| Jun 17, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 15 more | 4 hr |
| Jun 18, 1:47 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 36 more | 8 hr |
| Jun 21, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 3 more | 8 hr |
| Jun 22, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Benton, Buchanan, Cedar, Clinton, Davis and 23 more | 5 hr |
| Jun 25, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | Clinton, Jackson | 6 hr |
| Jun 25, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Cedar and 40 more | 7 hr |
| Jun 25, 11:42 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie, Ringgold and 1 more | 6 hr |
| Jul 6, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Page | 5 hr |
| Jul 10, 2:44 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 8 more | 7 hr |
| Jul 13, 7:33 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 6 more | 4 hr |
| Jul 14, 2:02 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 hr |
| Jul 14, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 23 more | 9 hr |
| Jul 15, 3:18 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allamakee, Appanoose, Audubon, Benton, Black Hawk and 59 more | 8 hr |
| Jul 29, 8:47 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Ida, Lyon, Monona and 4 more | 5 hr |
| Jul 29, 11:56 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 30 more | 5 hr |
| Jul 30, 4:02 AM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 3 hr |
| Jul 30, 9:30 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Appanoose, Clarke, Davis, Decatur, Jasper and 15 more | 8 hr |
| Jul 30, 11:54 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 37 more | 7 hr |
| Jul 31, 3:46 AM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Iowa, Jefferson, Johnson, Keokuk and 5 more | 5 hr |
| Jul 31, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Pottawattamie | 7 hr |
| Jul 31, 6:19 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more | 6 hr |
| Jul 31, 7:24 PM CDT | Severe Thunderstorm Watch | SPC | Dickinson, Lyon, Osceola | 5 hr |
| Aug 14, 5:34 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Cass, Dallas, Fremont and 11 more | 7 hr |
| Aug 15, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 28 more | 7 hr |
| Aug 26, 5:49 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 2 hr |
| Aug 26, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 2 more | 6 hr |
| Aug 29, 2:33 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola and 1 more | 6 hr |
| Aug 29, 7:46 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Winneshiek | 3 hr |
| Sep 19, 2:10 PM CDT | Severe Thunderstorm Watch | SPC | Cerro Gordo, Chickasaw, Emmet, Floyd, Hancock, Howard and 6 more | 6 hr |
| Oct 30, 1:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 22 more | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County16
- Page County15
- Wayne County15
- Adair County14
- Clarke County14
- Decatur County14
- Madison County14
- Montgomery County14
- Ringgold County14
- Taylor County14
- Union County14
- Van Buren County13
- Adams County13
- Cass County13
- Lucas County13
- Warren County13
- Appanoose County13
- Davis County13
- Dallas County12
- Mahaska County12
- Marion County12
- Monroe County12
- Wapello County12
- Henry County11
- Lee County11
- Mills County11
- Clay County11
- Audubon County11
- Guthrie County11
- Jasper County11
- Jefferson County11
- Poweshiek County11
- Des Moines County10
- Pottawattamie County10
- Shelby County10
- Cherokee County10
- Crawford County10
- Dickinson County10
- O'Brien County10
- Plymouth County10
59 more counties
- Keokuk County10
- Polk County10
- Harrison County9
- Buena Vista County9
- Osceola County9
- Sioux County9
- Marshall County9
- Washington County9
- Monona County8
- Floyd County8
- Woodbury County8
- Wright County8
- Boone County8
- Carroll County8
- Greene County8
- Iowa County8
- Tama County8
- Louisa County8
- Cerro Gordo County7
- Hancock County7
- Ida County7
- Pocahontas County7
- Sac County7
- Calhoun County7
- Hamilton County7
- Hardin County7
- Johnson County7
- Story County7
- Webster County7
- Muscatine County7
- Chickasaw County7
- Clinton County7
- Lyon County7
- Howard County6
- Humboldt County6
- Kossuth County6
- Mitchell County6
- Palo Alto County6
- Buchanan County6
- Cedar County6
- Delaware County6
- Grundy County6
- Franklin County6
- Jackson County6
- Scott County6
- Winneshiek County6
- Emmet County5
- Winnebago County5
- Worth County5
- Benton County5
- Jones County5
- Linn County5
- Bremer County5
- Dubuque County5
- Clayton County5
- Fayette County5
- Allamakee County5
- Black Hawk County4
- Butler County4
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.