Alert archive / Iowa / Mesoscale Discussions
Mesoscale Discussions in Iowa, 2018
158 mesoscale discussions in 2018. 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 2018. Tap one for its archive.
- Mesoscale Discussions
- 158
- Busiest month
- June36 mesoscale discussions
- Busiest day
- May 2, 20185 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 7, 1:49 PM CST | Mesoscale Discussion | SPC | Scott | 4 hr |
| Jan 7, 2:00 PM CST | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Louisa, Scott | 4 hr |
| Jan 11, 9:36 AM CST | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Delaware, Des Moines and 20 more | 4 hr |
| Jan 22, 2:02 AM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Kossuth and 7 more | 6 hr |
| Jan 22, 9:20 AM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Harrison and 12 more | 6 hr |
| Feb 5, 11:36 AM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 47 more | 6 hr |
| Feb 5, 4:57 PM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Lee, Louisa and 3 more | 4 hr |
| Feb 8, 9:07 PM CST | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 28 more | 6 hr |
| Feb 9, 3:08 AM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Jackson, Muscatine, Scott | 6 hr |
| Feb 20, 2:43 AM CST | Mesoscale Discussion | SPC | Black Hawk, Bremer, Butler, Chickasaw, Floyd, Grundy and 10 more | 3 hr |
| Mar 5, 1:17 PM CST | Mesoscale Discussion | SPC | Allamakee, Clayton, Fayette, Howard, Winneshiek | 4 hr |
| Mar 23, 8:02 PM CDT | Mesoscale Discussion | SPC | Butler, Cerro Gordo, Dickinson, Emmet, Floyd, Franklin and 5 more | 6 hr |
| Apr 13, 8:44 AM CDT | Mesoscale Discussion | SPC | Allamakee, Dickinson, Emmet, Howard, Lyon, Mitchell and 4 more | 3 hr |
| Apr 13, 2:06 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Decatur, Fremont and 8 more | 2 hr |
| Apr 13, 5:31 PM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Cass, Fremont, Greene, Guthrie and 5 more | 29 min |
| Apr 14, 10:06 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 21 more | 6 hr |
| Apr 14, 6:02 PM CDT | Mesoscale Discussion | SPC | Allamakee, Winneshiek | 6 hr |
| Apr 18, 9:56 AM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winnebago, Winneshiek, Worth | 3 hr |
| May 1, 10:24 AM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Jasper, Lucas, Madison and 10 more | 3 hr |
| May 1, 3:16 PM CDT | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler and 24 more | 89 min |
| May 1, 5:00 PM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Page, Pottawattamie | 2 hr |
| May 1, 7:24 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Harrison, Mills, Montgomery and 4 more | 2 hr |
| May 1, 7:55 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Audubon, Benton, Black Hawk, Boone and 48 more | 95 min |
| May 1, 9:38 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Benton, Black Hawk, Boone, Bremer and 29 more | 67 min |
| May 2, 1:33 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 9 more | 117 min |
| May 2, 5:08 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Davis, Decatur and 15 more | 97 min |
| May 2, 7:21 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Iowa, Jackson and 10 more | 84 min |
| May 2, 8:00 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 11 more | 90 min |
| May 2, 10:01 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Muscatine and 3 more | 89 min |
| May 3, 2:36 PM CDT | Mesoscale Discussion | SPC | Adams, Clarke, Decatur, Fremont, Montgomery, Page and 3 more | 114 min |
| May 3, 5:58 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Dallas and 16 more | 92 min |
| May 3, 7:43 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Jasper, Lucas and 12 more | 62 min |
| May 8, 3:56 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Crawford, Ida and 4 more | 2 hr |
| May 12, 1:04 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Boone, Carroll and 32 more | 116 min |
| May 14, 2:40 AM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson | 2 hr |
| May 24, 2:36 PM CDT | Mesoscale Discussion | SPC | Lyon | 2 hr |
| May 25, 12:59 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Chickasaw, Clayton, Delaware, Fayette and 3 more | 2 hr |
| May 25, 5:20 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Chickasaw and 22 more | 115 min |
| May 25, 6:29 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Chickasaw and 22 more | 2 hr |
| May 27, 3:47 PM CDT | Mesoscale Discussion | SPC | Cedar, Des Moines, Henry, Lee, Louisa, Muscatine and 1 more | 118 min |
| May 28, 2:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 26 more | 2 hr |
| May 29, 1:22 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 10 more | 83 min |
| May 29, 2:01 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 89 min |
| May 29, 3:54 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Butler and 47 more | 96 min |
| May 29, 5:04 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Taylor | 116 min |
| Jun 2, 12:50 AM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie, Taylor | 55 min |
| Jun 6, 2:22 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 32 more | 113 min |
| Jun 6, 6:20 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Boone, Calhoun and 35 more | 85 min |
| Jun 6, 8:45 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 17 more | 90 min |
| Jun 8, 12:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Carroll, Cass and 31 more | 114 min |
| Jun 8, 11:51 PM CDT | Mesoscale Discussion | SPC | Plymouth | 84 min |
| Jun 9, 2:51 AM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Cass, Crawford, Fremont, Greene and 10 more | 114 min |
| Jun 9, 1:46 PM CDT | Mesoscale Discussion | SPC | Bremer, Butler, Cerro Gordo, Chickasaw, Floyd, Franklin and 6 more | 119 min |
| Jun 9, 3:52 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 23 more | 83 min |
| Jun 9, 6:30 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 22 more | 2 hr |
| Jun 9, 10:17 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clinton, Delaware and 11 more | 118 min |
| Jun 9, 11:44 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Dubuque, Iowa, Jackson, Johnson and 5 more | 2 hr |
| Jun 10, 1:23 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 23 more | 3 hr |
| Jun 11, 2:38 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Plymouth, Woodbury | 2 hr |
| Jun 11, 9:32 PM CDT | Mesoscale Discussion | SPC | Decatur, Wayne | 118 min |
| Jun 12, 6:31 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 25 more | 2 hr |
| Jun 13, 11:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 13 more | 3 hr |
| Jun 14, 1:17 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 118 min |
| Jun 15, 3:56 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winnebago, Winneshiek, Worth | 2 hr |
| Jun 17, 3:52 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 13 more | 53 min |
| Jun 18, 1:34 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 33 more | 56 min |
| Jun 18, 5:46 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 38 more | 119 min |
| Jun 19, 12:37 PM CDT | Mesoscale Discussion | SPC | Lee | 113 min |
| Jun 20, 1:01 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Dallas, Grundy, Hardin, Iowa and 16 more | 2 hr |
| Jun 20, 5:13 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 31 more | 2 hr |
| Jun 21, 1:53 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Linn, Muscatine, Scott | 3 hr |
| Jun 24, 3:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 31 more | 62 min |
| Jun 25, 5:14 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Decatur and 14 more | 2 hr |
| Jun 25, 7:25 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Clarke, Dallas, Greene, Guthrie and 4 more | 2 hr |
| Jun 26, 1:31 PM CDT | Mesoscale Discussion | SPC | Clinton, Dubuque, Jackson, Jones | 89 min |
| Jun 28, 7:20 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Harrison, Mills and 6 more | 2 hr |
| Jun 28, 10:57 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 27 more | 2 hr |
| Jun 30, 12:40 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee, Chickasaw and 26 more | 3 hr |
| Jun 30, 3:40 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Butler, Calhoun, Carroll, Cass and 25 more | 2 hr |
| Jun 30, 4:40 PM CDT | Mesoscale Discussion | SPC | Ringgold, Taylor | 95 min |
| Jun 30, 6:09 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 96 min |
| Jun 30, 7:15 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Iowa, Jackson, Jasper and 11 more | 90 min |
| Jun 30, 8:05 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Winneshiek | 85 min |
| Jun 30, 8:55 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Harrison and 8 more | 95 min |
| Jul 1, 12:48 AM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Pottawattamie, Shelby | 117 min |
| Jul 4, 9:56 AM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Mitchell, Winneshiek | 2 hr |
| Jul 4, 10:27 AM CDT | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler and 35 more | 2 hr |
| Jul 4, 2:01 PM CDT | Mesoscale Discussion | SPC | Monona, Plymouth, Woodbury | 119 min |
| Jul 4, 5:35 PM CDT | Mesoscale Discussion | SPC | Plymouth | 115 min |
| Jul 10, 11:51 AM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Clay and 14 more | 84 min |
| Jul 12, 9:39 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, Osceola | 96 min |
| Jul 13, 12:41 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Chickasaw and 16 more | 94 min |
| Jul 13, 6:23 PM CDT | Mesoscale Discussion | SPC | Clinton, Delaware, Dubuque, Jackson, Jones | 2 hr |
| Jul 19, 12:47 AM CDT | Mesoscale Discussion | SPC | Fremont, Mills | 118 min |
| Jul 19, 1:27 PM CDT | Mesoscale Discussion | SPC | Hancock, Kossuth, Winnebago | 63 min |
| Jul 19, 2:32 PM CDT | Mesoscale Discussion | SPC | Appanoose, Boone, Clarke, Dallas, Davis, Decatur and 13 more | 118 min |
| Jul 19, 5:18 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Cedar, Clinton, Davis and 27 more | 57 min |
| Jul 19, 6:26 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 64 min |
| Jul 19, 9:36 PM CDT | Mesoscale Discussion | SPC | Lee | 54 min |
| Jul 25, 3:47 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Dickinson, Emmet, Floyd and 9 more | 88 min |
| Jul 25, 6:29 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Calhoun and 24 more | 91 min |
| Jul 25, 7:51 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Cass, Crawford and 11 more | 84 min |
| Aug 1, 6:52 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 20 more | 2 hr |
| Aug 5, 3:46 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 11 more | 89 min |
| Aug 5, 5:44 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Delaware, Dubuque, Iowa and 13 more | 2 hr |
| Aug 5, 9:32 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Butler, Calhoun and 29 more | 2 hr |
| Aug 6, 2:31 PM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Pottawattamie | 89 min |
| Aug 6, 6:38 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 11 more | 2 hr |
| Aug 20, 4:46 PM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson | 119 min |
| Aug 24, 3:07 PM CDT | Mesoscale Discussion | SPC | Clay, Emmet, Kossuth, Palo Alto, Winnebago, Worth | 113 min |
| Aug 24, 7:02 PM CDT | Mesoscale Discussion | SPC | Bremer, Butler, Cerro Gordo, Chickasaw, Floyd, Franklin and 4 more | 118 min |
| Aug 26, 9:53 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 40 more | 2 hr |
| Aug 27, 11:49 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 11 more | 116 min |
| Aug 27, 2:24 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 21 more | 96 min |
| Aug 28, 3:12 AM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 3 more | 3 hr |
| Aug 28, 7:50 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 15 more | 115 min |
| Aug 28, 12:14 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 21 more | 2 hr |
| Aug 28, 4:45 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clarke, Davis, Decatur, Des Moines and 21 more | 60 min |
| Aug 28, 6:07 PM CDT | Mesoscale Discussion | SPC | Cedar, Iowa, Johnson, Keokuk, Muscatine, Washington | 53 min |
| Aug 31, 1:10 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 38 more | 3 hr |
| Aug 31, 8:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Carroll, Cass and 24 more | 118 min |
| Sep 1, 6:34 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 67 more | 56 min |
| Sep 1, 10:27 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Boone and 47 more | 63 min |
| Sep 2, 2:24 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Benton, Black Hawk, Boone and 45 more | 2 hr |
| Sep 3, 1:20 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Iowa, Jackson and 9 more | 2 hr |
| Sep 3, 5:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Benton, Black Hawk, Boone, Bremer and 39 more | 58 min |
| Sep 4, 2:06 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cerro Gordo and 22 more | 2 hr |
| Sep 4, 6:28 PM CDT | Mesoscale Discussion | SPC | Allamakee, Boone, Bremer, Butler, Cerro Gordo, Chickasaw and 16 more | 2 hr |
| Sep 4, 9:07 PM CDT | Mesoscale Discussion | SPC | Allamakee, Fayette, Winneshiek | 83 min |
| Sep 17, 3:05 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Chickasaw, Floyd, Hancock, Howard, Mitchell and 3 more | 115 min |
| Sep 18, 2:48 AM CDT | Mesoscale Discussion | SPC | Lyon | 2 hr |
| Sep 18, 5:48 AM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, Osceola | 2 hr |
| Sep 18, 3:06 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Decatur and 13 more | 84 min |
| Sep 18, 5:11 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Ringgold, Taylor | 64 min |
| Sep 19, 2:40 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 16 more | 3 hr |
| Sep 20, 2:15 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 12 more | 3 hr |
| Sep 20, 2:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 23 more | 119 min |
| Sep 20, 5:29 PM CDT | Mesoscale Discussion | SPC | Allamakee | 2 hr |
| Sep 20, 5:48 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Bremer, Buena Vista, Butler, Calhoun and 37 more | 57 min |
| Sep 20, 8:20 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 115 min |
| Sep 25, 9:27 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 24 more | 2 hr |
| Sep 25, 1:07 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Cedar, Clayton, Clinton and 23 more | 113 min |
| Sep 25, 3:39 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Dubuque, Jackson, Jones and 4 more | 96 min |
| Oct 3, 5:13 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 16 more | 2 hr |
| Oct 5, 2:39 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 41 more | 3 hr |
| Oct 8, 7:03 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Dallas, Decatur, Jasper, Lucas and 9 more | 57 min |
| Oct 9, 12:59 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Clarke, Davis, Decatur and 19 more | 3 hr |
| Oct 9, 2:45 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Dubuque, Jackson, Jones, Muscatine and 1 more | 2 hr |
| Oct 9, 3:53 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Boone, Buchanan, Clarke and 29 more | 2 hr |
| Oct 9, 6:37 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 21 more | 83 min |
| Nov 25, 3:54 AM CST | Mesoscale Discussion | SPC | Adams, Clarke, Decatur, Fremont, Lucas, Marion and 8 more | 6 hr |
| Nov 25, 10:59 AM CST | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 9 more | 5 hr |
| Nov 25, 11:54 AM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Iowa, Jackson, Johnson, Louisa and 3 more | 6 hr |
| Nov 25, 3:57 PM CST | Mesoscale Discussion | SPC | Des Moines, Lee | 4 hr |
| Nov 25, 6:54 PM CST | Mesoscale Discussion | SPC | Scott | 6 hr |
| Dec 1, 11:33 AM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Hancock and 8 more | 3 hr |
| Dec 27, 6:07 PM CST | Mesoscale Discussion | SPC | Lyon | 5 hr |
| Dec 31, 11:50 AM CST | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 20 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County43
- Guthrie County41
- Boone County40
- Mills County40
- Carroll County39
- Jasper County39
- Lucas County38
- Adams County38
- Audubon County38
- Cass County38
- Clarke County38
- Greene County38
- Marion County38
- Warren County38
- Madison County37
- Pottawattamie County37
- Shelby County37
- Dallas County36
- Hardin County36
- Polk County36
- Story County36
- Union County36
- Fremont County36
- Marshall County35
- Franklin County35
- Poweshiek County34
- Taylor County34
- Adair County33
- Calhoun County33
- Winneshiek County33
- Page County33
- Mahaska County32
- Buena Vista County32
- Grundy County32
- Hamilton County32
- Tama County32
- Butler County32
- Pocahontas County32
- Ringgold County32
- Wayne County31
59 more counties
- Harrison County31
- Crawford County31
- Webster County31
- Decatur County31
- Winnebago County30
- Bremer County30
- Humboldt County30
- Chickasaw County30
- Hancock County30
- Linn County29
- Monroe County29
- Worth County29
- Sac County29
- Floyd County29
- Mitchell County29
- Scott County28
- Iowa County28
- Muscatine County28
- Emmet County28
- Kossuth County28
- Monona County28
- Benton County28
- Cedar County27
- Johnson County27
- Jones County27
- Palo Alto County27
- Ida County27
- Wright County27
- Howard County27
- Cerro Gordo County27
- Appanoose County26
- Washington County26
- Black Hawk County26
- Fayette County26
- Allamakee County26
- Keokuk County24
- Wapello County24
- Clay County24
- Clinton County23
- Jackson County23
- Louisa County22
- Delaware County22
- Cherokee County22
- Dickinson County22
- Woodbury County22
- Clayton County22
- Dubuque County22
- Buchanan County21
- Des Moines County20
- Davis County20
- Lee County19
- Osceola County19
- Plymouth County19
- Henry County18
- Jefferson County18
- Lyon County18
- O'Brien County18
- Van Buren County16
- Sioux County14
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.