Alert archive / Iowa / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Iowa, 2025
40 severe thunderstorm watches in 2025. 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 2025. Tap one for its archive.
- Severe Thunderstorm Watches
- 40
- Busiest month
- July14 severe thunderstorm watches
- Busiest day
- March 14, 20253 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 14, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 46 more | 5 hr |
| Mar 14, 5:43 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Buena Vista, Cerro Gordo, Cherokee, Chickasaw, Clay and 19 more | 6 hr |
| Mar 14, 6:55 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 8 hr |
| Apr 1, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 10 hr |
| Apr 17, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 13 more | 6 hr |
| Apr 28, 5:59 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 4 hr |
| May 15, 1:36 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 hr |
| May 19, 3:43 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more | 6 hr |
| Jun 2, 4:50 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more | 8 hr |
| Jun 3, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 8 more | 6 hr |
| Jun 11, 2:53 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Buena Vista and 37 more | 7 hr |
| Jun 16, 5:11 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 31 more | 9 hr |
| Jun 23, 1:15 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Clayton, Fayette, Winneshiek | 8 hr |
| Jun 23, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Benton, Black Hawk, Boone, Bremer and 35 more | 5 hr |
| Jun 25, 2:38 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 16 more | 7 hr |
| Jun 26, 1:44 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 49 more | 7 hr |
| Jun 27, 10:29 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Ida, Lyon, O'Brien, Osceola, Plymouth and 2 more | 5 hr |
| Jun 28, 11:12 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 2 more | 6 hr |
| Jul 7, 3:14 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Harrison, Lyon, Monona, O'Brien, Osceola and 4 more | 7 hr |
| Jul 7, 9:04 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Carroll, Cass, Clarke and 17 more | 6 hr |
| Jul 10, 7:46 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 33 more | 8 hr |
| Jul 11, 1:17 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Cedar, Des Moines, Henry, Iowa, Jefferson and 7 more | 3 hr |
| Jul 11, 1:13 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Boone, Bremer, Buchanan, Butler, Clayton and 11 more | 7 hr |
| Jul 15, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Fremont, Harrison, Ida, Lyon, Mills and 7 more | 6 hr |
| Jul 18, 8:06 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 1 more | 7 hr |
| Jul 19, 5:05 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 29 more | 4 hr |
| Jul 27, 4:47 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 9 hr |
| Jul 28, 6:57 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more | 5 hr |
| Jul 28, 10:07 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Audubon, Benton, Black Hawk, Boone, Bremer and 51 more | 6 hr |
| Jul 29, 8:24 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 16 more | 6 hr |
| Jul 29, 9:48 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 5 hr |
| Jul 30, 1:23 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Black Hawk, Boone, Cass and 24 more | 5 hr |
| Aug 8, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 3 more | 8 hr |
| Aug 9, 2:17 AM CDT | Severe Thunderstorm Watch | SPC | Harrison, Mills, Monona, Pottawattamie, Shelby | 5 hr |
| Aug 9, 6:04 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 23 more | 5 hr |
| Aug 9, 8:46 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 8 hr |
| Aug 10, 2:51 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Butler and 29 more | 4 hr |
| Aug 15, 12:30 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 20 more | 6 hr |
| Aug 15, 2:16 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Buchanan, Cedar, Chickasaw, Clayton and 18 more | 6 hr |
| Aug 16, 3:24 AM CDT | Severe Thunderstorm Watch | SPC | Dickinson, Lyon, Osceola | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- O'Brien County16
- Cherokee County15
- Osceola County15
- Plymouth County15
- Sioux County14
- Woodbury County14
- Ida County13
- Lyon County13
- Boone County12
- Hamilton County12
- Story County12
- Clay County12
- Dickinson County12
- Carroll County11
- Hardin County11
- Mills County11
- Polk County11
- Warren County11
- Webster County11
- Buena Vista County11
- Adair County10
- Calhoun County10
- Cass County10
- Dallas County10
- Fremont County10
- Grundy County10
- Guthrie County10
- Harrison County10
- Madison County10
- Marshall County10
- Monona County10
- Pocahontas County10
- Pottawattamie County10
- Wright County10
- Adams County9
- Audubon County9
- Black Hawk County9
- Butler County9
- Clarke County9
- Franklin County9
59 more counties
- Greene County9
- Humboldt County9
- Montgomery County9
- Page County9
- Sac County9
- Shelby County9
- Tama County9
- Union County9
- Bremer County8
- Crawford County8
- Decatur County8
- Jasper County8
- Lucas County8
- Marion County8
- Ringgold County8
- Taylor County8
- Palo Alto County8
- Benton County8
- Buchanan County8
- Delaware County8
- Keokuk County8
- Linn County8
- Mahaska County7
- Monroe County7
- Poweshiek County7
- Clayton County7
- Emmet County7
- Fayette County7
- Kossuth County7
- Worth County7
- Iowa County7
- Johnson County7
- Appanoose County6
- Wapello County6
- Wayne County6
- Cerro Gordo County6
- Hancock County6
- Winnebago County6
- Cedar County6
- Dubuque County6
- Jones County6
- Louisa County6
- Muscatine County6
- Washington County6
- Davis County5
- Allamakee County5
- Winneshiek County5
- Jackson County5
- Scott County5
- Chickasaw County4
- Floyd County4
- Howard County4
- Mitchell County4
- Clinton County4
- Des Moines County4
- Henry County4
- Jefferson County4
- Lee County2
- Van Buren County2
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.