Alert archive / Iowa / Mesoscale Discussions
Mesoscale Discussions in Iowa, 2025
160 mesoscale discussions 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Mesoscale Discussions
- 160
- Busiest month
- July47 mesoscale discussions
- Busiest day
- July 10, 20256 mesoscale discussions
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 |
|---|---|---|---|---|
| Jan 2, 5:50 AM CST | Mesoscale Discussion | SPC | Adair, Boone, Cass, Clarke, Dallas, Greene and 15 more | 3 hr |
| Mar 4, 7:20 PM CST | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 18 more | 4 hr |
| Mar 4, 11:17 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 44 more | 4 hr |
| Mar 14, 1:01 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Ringgold, Taylor, Wayne | 2 hr |
| Mar 14, 5:01 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Appanoose, Audubon, Benton and 92 more | 89 min |
| Mar 14, 8:06 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 22 more | 114 min |
| Mar 14, 9:21 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Clinton, Dubuque, Jackson, Jones and 2 more | 84 min |
| Mar 19, 4:37 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 40 more | 113 min |
| Mar 19, 5:54 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 19 more | 5 hr |
| Mar 19, 11:21 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee | 2 hr |
| Mar 27, 10:03 AM CDT | Mesoscale Discussion | SPC | Decatur, Ringgold | 117 min |
| Mar 27, 3:51 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 114 min |
| Mar 28, 7:25 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 2 hr |
| Mar 29, 7:52 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 31 more | 2 hr |
| Apr 1, 8:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Cass, Fremont, Mills, Montgomery, Pottawattamie and 1 more | 64 min |
| Apr 14, 1:28 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 3 hr |
| Apr 17, 12:46 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 1 more | 2 hr |
| Apr 17, 2:53 PM CDT | Mesoscale Discussion | SPC | Crawford, Harrison, Ida, Monona, Sac, Woodbury | 2 hr |
| Apr 17, 5:33 PM CDT | Mesoscale Discussion | SPC | Mills, Pottawattamie | 87 min |
| Apr 17, 5:56 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Hancock and 9 more | 2 hr |
| Apr 17, 7:37 PM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Pottawattamie | 53 min |
| Apr 17, 8:06 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 3 more | 84 min |
| Apr 17, 9:50 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Clarke, Lucas, Madison, Union and 1 more | 85 min |
| Apr 18, 12:42 AM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buchanan, Buena Vista, Butler, Calhoun and 28 more | 3 hr |
| Apr 18, 5:05 AM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 6 more | 2 hr |
| Apr 20, 2:20 PM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Jefferson, Lee, Louisa and 1 more | 115 min |
| Apr 20, 5:40 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Van Buren | 95 min |
| Apr 20, 7:46 PM CDT | Mesoscale Discussion | SPC | Muscatine, Scott | 89 min |
| Apr 22, 4:54 PM CDT | Mesoscale Discussion | SPC | Lee | 96 min |
| Apr 23, 4:43 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 30 more | 92 min |
| Apr 24, 4:35 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Guthrie and 6 more | 115 min |
| Apr 28, 10:41 AM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 3 more | 2 hr |
| Apr 28, 2:25 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 18 more | 2 hr |
| Apr 28, 3:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 26 more | 3 hr |
| Apr 28, 5:29 PM CDT | Mesoscale Discussion | SPC | Monona, Plymouth, Sioux, Woodbury | 91 min |
| Apr 28, 6:06 PM CDT | Mesoscale Discussion | SPC | Howard, Mitchell, Winnebago, Worth | 84 min |
| May 15, 1:08 AM CDT | Mesoscale Discussion | SPC | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 97 min |
| May 15, 4:04 AM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 1 more | 86 min |
| May 15, 7:23 AM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 97 min |
| May 15, 2:14 PM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson | 2 hr |
| May 19, 3:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Cass and 23 more | 89 min |
| May 19, 6:08 PM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Harrison, Mills, Montgomery, Page and 2 more | 2 hr |
| Jun 2, 1:20 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 3 more | 85 min |
| Jun 2, 3:47 PM CDT | Mesoscale Discussion | SPC | Cherokee, Dickinson, Lyon, Monona, O'Brien, Osceola and 3 more | 118 min |
| Jun 2, 11:33 PM CDT | Mesoscale Discussion | SPC | Crawford, Fremont, Harrison, Mills, Monona, Montgomery and 2 more | 87 min |
| Jun 3, 3:39 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Des Moines, Henry, Jackson and 11 more | 2 hr |
| Jun 3, 6:14 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 5 more | 91 min |
| Jun 3, 7:24 PM CDT | Mesoscale Discussion | SPC | Scott | 96 min |
| Jun 11, 1:56 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Buchanan, Buena Vista, Butler and 37 more | 3 hr |
| Jun 11, 4:58 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 16 more | 92 min |
| Jun 11, 6:45 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buchanan, Butler, Chickasaw, Clayton and 6 more | 90 min |
| Jun 11, 8:05 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clayton, Clinton and 7 more | 85 min |
| Jun 12, 5:17 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Kossuth, Winnebago, Worth | 88 min |
| Jun 14, 6:47 PM CDT | Mesoscale Discussion | SPC | Boone, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 22 more | 118 min |
| Jun 16, 4:46 PM CDT | Mesoscale Discussion | SPC | Monona, Woodbury | 89 min |
| Jun 16, 7:16 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 19 more | 89 min |
| Jun 16, 7:56 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 94 min |
| Jun 20, 12:44 AM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 11 more | 2 hr |
| Jun 23, 12:29 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Chickasaw, Fayette, Floyd and 2 more | 3 hr |
| Jun 23, 2:34 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 27 more | 2 hr |
| Jun 23, 6:23 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Benton, Cedar, Clarke, Decatur and 21 more | 2 hr |
| Jun 25, 1:35 PM CDT | Mesoscale Discussion | SPC | Howard, Mitchell, Winnebago, Worth | 115 min |
| Jun 25, 2:16 PM CDT | Mesoscale Discussion | SPC | Plymouth, Sioux, Woodbury | 119 min |
| Jun 25, 5:00 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek, Worth | 90 min |
| Jun 25, 5:24 PM CDT | Mesoscale Discussion | SPC | Calhoun, Carroll, Cerro Gordo, Crawford, Franklin, Hamilton and 10 more | 96 min |
| Jun 26, 11:29 AM CDT | Mesoscale Discussion | SPC | Allamakee, Calhoun, Cerro Gordo, Chickasaw, Floyd, Franklin and 10 more | 2 hr |
| Jun 26, 12:36 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 32 more | 114 min |
| Jun 26, 3:31 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Clarke and 14 more | 89 min |
| Jun 26, 4:53 PM CDT | Mesoscale Discussion | SPC | Allamakee | 2 hr |
| Jun 26, 5:31 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Bremer, Buchanan, Butler and 22 more | 89 min |
| Jun 27, 11:47 PM CDT | Mesoscale Discussion | SPC | Plymouth, Sioux | 88 min |
| Jun 28, 10:54 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola | 96 min |
| Jun 29, 1:01 AM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 4 more | 119 min |
| Jun 29, 4:47 AM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 16 more | 2 hr |
| Jun 29, 12:57 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Delaware, Dubuque, Fayette, Howard and 1 more | 2 hr |
| Jul 2, 5:50 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Delaware, Dubuque, Fayette and 4 more | 85 min |
| Jul 2, 11:52 PM CDT | Mesoscale Discussion | SPC | Cherokee, Ida, Lyon, Monona, O'Brien, Osceola and 3 more | 113 min |
| Jul 3, 2:18 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 13 more | 2 hr |
| Jul 5, 2:07 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clayton, Clinton, Delaware, Dubuque and 12 more | 2 hr |
| Jul 7, 1:11 PM CDT | Mesoscale Discussion | SPC | Lyon | 2 hr |
| Jul 7, 5:52 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 83 min |
| Jul 7, 7:45 PM CDT | Mesoscale Discussion | SPC | Crawford, Harrison, Ida, Mills, Monona, Plymouth and 3 more | 90 min |
| Jul 7, 10:44 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Montgomery, Page and 1 more | 91 min |
| Jul 8, 1:59 AM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Jasper, Lucas, Mahaska and 4 more | 91 min |
| Jul 10, 1:39 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more | 2 hr |
| Jul 10, 3:57 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Madison, Montgomery and 4 more | 93 min |
| Jul 10, 12:55 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 34 more | 3 hr |
| Jul 10, 2:20 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Plymouth, Woodbury | 2 hr |
| Jul 10, 6:13 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Delaware, Dubuque, Henry, Iowa and 11 more | 2 hr |
| Jul 10, 6:45 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Mills, Monona and 4 more | 2 hr |
| Jul 10, 10:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 18 more | 114 min |
| Jul 11, 12:44 AM CDT | Mesoscale Discussion | SPC | Cedar, Clarke, Dallas, Des Moines, Henry, Iowa and 17 more | 91 min |
| Jul 11, 2:43 AM CDT | Mesoscale Discussion | SPC | Cedar, Iowa, Johnson, Keokuk, Louisa, Muscatine and 2 more | 92 min |
| Jul 11, 12:18 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Benton, Cedar, Clarke and 37 more | 87 min |
| Jul 11, 3:53 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Cedar, Clarke, Clinton and 30 more | 97 min |
| Jul 13, 5:47 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 118 min |
| Jul 15, 8:19 PM CDT | Mesoscale Discussion | SPC | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 86 min |
| Jul 15, 10:45 PM CDT | Mesoscale Discussion | SPC | Audubon, Cass, Fremont, Harrison, Mills, Monona and 4 more | 2 hr |
| Jul 16, 11:45 AM CDT | Mesoscale Discussion | SPC | Clinton, Dubuque, Jackson, Scott | 2 hr |
| Jul 18, 11:30 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 16 more | 90 min |
| Jul 19, 1:54 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 47 more | 96 min |
| Jul 19, 7:13 AM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Cedar, Clinton, Davis, Des Moines and 21 more | 92 min |
| Jul 19, 3:42 PM CDT | Mesoscale Discussion | SPC | Fremont, Page, Ringgold, Taylor | 2 hr |
| Jul 19, 5:18 PM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Monona, Pottawattamie | 117 min |
| Jul 19, 11:39 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Jefferson, Lee and 5 more | 2 hr |
| Jul 22, 7:27 PM CDT | Mesoscale Discussion | SPC | Dallas, Davis, Iowa, Jasper, Jefferson, Keokuk and 12 more | 93 min |
| Jul 23, 9:28 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Pottawattamie | 2 hr |
| Jul 24, 12:46 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Dallas, Delaware, Iowa and 7 more | 89 min |
| Jul 27, 9:47 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee and 23 more | 118 min |
| Jul 28, 1:34 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Benton, Buchanan, Carroll, Cass and 22 more | 86 min |
| Jul 28, 5:49 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Plymouth, Sioux | 116 min |
| Jul 28, 8:13 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 2 hr |
| Jul 28, 9:39 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Buena Vista, Butler, Calhoun and 41 more | 2 hr |
| Jul 28, 10:44 PM CDT | Mesoscale Discussion | SPC | Allamakee | 2 hr |
| Jul 29, 12:53 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 18 more | 97 min |
| Jul 29, 3:18 AM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jefferson, Keokuk and 6 more | 87 min |
| Jul 29, 4:34 PM CDT | Mesoscale Discussion | SPC | Lyon, Sioux | 56 min |
| Jul 29, 7:30 PM CDT | Mesoscale Discussion | SPC | Cherokee, Ida, Lyon, Monona, O'Brien, Plymouth and 2 more | 90 min |
| Jul 29, 9:26 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 14 more | 94 min |
| Jul 29, 11:55 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 14 more | 2 hr |
| Jul 30, 1:28 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Benton, Boone, Buchanan and 43 more | 2 hr |
| Jul 30, 4:49 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Iowa, Jefferson and 10 more | 56 min |
| Aug 5, 11:33 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 117 min |
| Aug 8, 11:25 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, Osceola | 2 hr |
| Aug 9, 2:40 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 10 more | 95 min |
| Aug 9, 5:31 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 21 more | 89 min |
| Aug 9, 7:29 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Bremer, Butler, Calhoun and 30 more | 2 hr |
| Aug 9, 10:03 AM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 87 min |
| Aug 9, 2:54 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Des Moines, Henry, Jefferson and 5 more | 96 min |
| Aug 10, 1:44 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Boone, Cass, Clarke and 23 more | 2 hr |
| Aug 10, 4:59 AM CDT | Mesoscale Discussion | SPC | Adair, Black Hawk, Boone, Butler, Cass, Dallas and 12 more | 91 min |
| Aug 11, 9:57 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Johnson and 9 more | 2 hr |
| Aug 15, 11:51 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buena Vista, Butler and 32 more | 114 min |
| Aug 15, 1:41 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 31 more | 94 min |
| Aug 15, 3:32 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 20 more | 88 min |
| Aug 15, 5:52 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 17 more | 83 min |
| Aug 16, 2:18 AM CDT | Mesoscale Discussion | SPC | Lyon | 87 min |
| Aug 16, 2:05 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 85 min |
| Aug 16, 8:06 PM CDT | Mesoscale Discussion | SPC | Clayton, Dubuque | 84 min |
| Aug 17, 3:51 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 15 more | 84 min |
| Aug 17, 6:43 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo, Chickasaw and 15 more | 2 hr |
| Aug 18, 1:50 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Harrison and 11 more | 85 min |
| Aug 18, 3:51 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Des Moines, Henry and 15 more | 84 min |
| Aug 22, 2:31 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Monona, Plymouth and 3 more | 119 min |
| Sep 4, 4:56 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 2 more | 94 min |
| Sep 14, 3:28 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 92 min |
| Sep 15, 4:49 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Iowa, Jefferson, Keokuk, Mahaska and 4 more | 86 min |
| Sep 16, 2:21 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 45 more | 114 min |
| Sep 17, 5:01 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Jasper, Lucas, Mahaska and 5 more | 89 min |
| Sep 21, 4:33 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, Osceola and 2 more | 87 min |
| Sep 22, 2:43 PM CDT | Mesoscale Discussion | SPC | Allamakee | 92 min |
| Sep 22, 8:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 19 more | 114 min |
| Nov 29, 3:18 AM CST | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Jefferson, Lee, Van Buren and 1 more | 4 hr |
| Nov 29, 4:49 AM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more | 5 hr |
| Nov 29, 10:42 AM CST | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Iowa, Jefferson and 15 more | 5 hr |
| Dec 6, 12:25 PM CST | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Ida and 9 more | 6 hr |
| Dec 6, 6:54 PM CST | Mesoscale Discussion | SPC | Boone, Clarke, Dallas, Franklin, Greene, Grundy and 18 more | 3 hr |
| Dec 13, 9:43 AM CST | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Louisa, Muscatine, Washington | 4 hr |
| Dec 28, 9:52 AM CST | Mesoscale Discussion | SPC | Dickinson, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more | 6 hr |
| Dec 28, 5:53 PM CST | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 16 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Sioux County37
- Plymouth County36
- Lyon County35
- Pottawattamie County33
- Woodbury County33
- O'Brien County32
- Osceola County32
- Cass County31
- Greene County31
- Story County31
- Dallas County30
- Jasper County30
- Madison County30
- Polk County30
- Cherokee County30
- Harrison County30
- Monona County30
- Shelby County30
- Dickinson County30
- Hardin County30
- Boone County29
- Hamilton County29
- Guthrie County28
- Marshall County28
- Poweshiek County28
- Warren County28
- Clay County28
- Crawford County28
- Mills County28
- Sac County28
- Winnebago County28
- Worth County28
- Adair County27
- Carroll County27
- Ida County27
- Montgomery County27
- Wright County27
- Bremer County27
- Grundy County27
- Scott County27
59 more counties
- Lucas County26
- Marion County26
- Monroe County26
- Humboldt County26
- Pocahontas County26
- Butler County26
- Chickasaw County26
- Fayette County26
- Howard County26
- Clarke County25
- Iowa County25
- Mahaska County25
- Calhoun County25
- Fremont County25
- Webster County25
- Franklin County25
- Kossuth County25
- Mitchell County25
- Buchanan County25
- Tama County25
- Keokuk County24
- Union County24
- Audubon County24
- Palo Alto County24
- Cerro Gordo County24
- Hancock County24
- Page County24
- Allamakee County24
- Black Hawk County24
- Cedar County24
- Muscatine County24
- Winneshiek County24
- Adams County23
- Floyd County23
- Benton County23
- Delaware County23
- Dubuque County23
- Henry County23
- Jefferson County23
- Johnson County23
- Emmet County22
- Appanoose County22
- Clinton County22
- Des Moines County22
- Lee County22
- Washington County22
- Buena Vista County21
- Taylor County21
- Decatur County21
- Wayne County21
- Clayton County21
- Jackson County21
- Linn County21
- Louisa County21
- Wapello County21
- Ringgold County20
- Jones County20
- Van Buren County19
- Davis County18
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.