Alert archive / Iowa / Mesoscale Discussions
Mesoscale Discussions in Iowa, 2016
152 mesoscale discussions in 2016. 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 2016. Tap one for its archive.
- Mesoscale Discussions
- 152
- Busiest month
- July37 mesoscale discussions
- Busiest day
- July 7, 20168 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 |
|---|---|---|---|---|
| Feb 2, 3:39 AM CST | Mesoscale Discussion | SPC | Carroll, Cherokee, Crawford, Harrison, Ida, Monona and 3 more | 6 hr |
| Feb 2, 7:50 AM CST | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler and 37 more | 4 hr |
| Feb 2, 11:35 AM CST | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Cerro Gordo, Cherokee, Chickasaw and 20 more | 5 hr |
| Feb 29, 8:49 PM CST | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 16 more | 6 hr |
| Mar 15, 2:24 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jefferson, Lee and 5 more | 66 min |
| Mar 23, 1:07 PM CDT | Mesoscale Discussion | SPC | Adams, Decatur, Fremont, Mills, Montgomery, Page and 3 more | 2 hr |
| Mar 23, 7:15 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buena Vista, Cerro Gordo, Cherokee, Chickasaw, Clay and 18 more | 6 hr |
| Mar 23, 7:45 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Lucas, Monroe, Wayne | 2 hr |
| Mar 30, 2:56 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Mills, Montgomery and 5 more | 2 hr |
| Apr 5, 6:07 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 2 hr |
| Apr 21, 1:29 PM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Jones, Scott | 3 hr |
| Apr 24, 1:31 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Carroll, Cass, Cherokee, Clay and 18 more | 119 min |
| Apr 24, 6:10 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 15 more | 65 min |
| Apr 24, 8:45 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Buena Vista, Calhoun, Carroll, Cass and 14 more | 60 min |
| Apr 26, 6:14 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Page | 61 min |
| Apr 27, 1:58 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 13 more | 2 hr |
| Apr 27, 5:34 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more | 116 min |
| May 9, 2:26 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Lyon, O'Brien, Osceola, Plymouth and 2 more | 94 min |
| May 9, 4:52 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Crawford, Fremont, Harrison and 7 more | 53 min |
| May 9, 7:33 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Carroll, Cass, Crawford and 8 more | 57 min |
| May 9, 10:06 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 15 more | 54 min |
| May 11, 5:34 AM CDT | Mesoscale Discussion | SPC | Decatur, Fremont, Page, Ringgold, Taylor | 101 min |
| May 13, 12:52 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Des Moines, Henry and 10 more | 113 min |
| May 23, 1:58 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 39 more | 92 min |
| May 25, 2:17 PM CDT | Mesoscale Discussion | SPC | Dubuque | 118 min |
| May 25, 11:34 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 20 more | 86 min |
| May 26, 10:33 AM CDT | Mesoscale Discussion | SPC | Fremont, Page, Taylor | 57 min |
| May 26, 5:27 PM CDT | Mesoscale Discussion | SPC | Fremont, Page, Taylor | 63 min |
| May 27, 5:41 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 7 more | 64 min |
| May 28, 12:37 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Buchanan, Cedar, Clayton and 24 more | 113 min |
| May 28, 5:33 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 29 more | 57 min |
| May 30, 5:14 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 51 more | 91 min |
| Jun 3, 3:06 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 29 more | 114 min |
| Jun 9, 7:58 PM CDT | Mesoscale Discussion | SPC | Clinton, Jackson | 2 hr |
| Jun 10, 12:02 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, O'Brien, Osceola and 2 more | 88 min |
| Jun 10, 2:54 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek | 96 min |
| Jun 10, 5:51 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Emmet, Hancock, Howard, Kossuth and 5 more | 114 min |
| Jun 10, 8:33 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Clayton, Emmet, Fayette and 9 more | 117 min |
| Jun 14, 11:45 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 57 more | 2 hr |
| Jun 14, 2:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 59 more | 114 min |
| Jun 14, 3:49 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 22 more | 56 min |
| Jun 14, 6:15 PM CDT | Mesoscale Discussion | SPC | Taylor | 3 hr |
| Jun 14, 6:24 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buchanan, Cedar, Chickasaw, Clayton, Clinton and 14 more | 66 min |
| Jun 14, 7:00 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Black Hawk, Boone, Bremer and 27 more | 60 min |
| Jun 14, 8:36 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Benton, Boone, Buchanan and 29 more | 84 min |
| Jun 17, 2:31 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 89 min |
| Jun 17, 6:13 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Sioux | 92 min |
| Jun 17, 7:23 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more | 2 hr |
| Jun 17, 8:57 PM CDT | Mesoscale Discussion | SPC | Cherokee, Plymouth, Sioux, Woodbury | 63 min |
| Jun 20, 12:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Harrison and 7 more | 114 min |
| Jun 20, 3:07 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Des Moines, Henry, Lee and 2 more | 83 min |
| Jun 20, 6:42 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 22 more | 63 min |
| Jun 20, 9:04 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 22 more | 56 min |
| Jun 21, 3:43 AM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie, Ringgold and 1 more | 3 hr |
| Jun 21, 9:49 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Ida and 8 more | 26 min |
| Jun 21, 10:28 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Buchanan, Cedar, Davis and 22 more | 2 hr |
| Jun 22, 2:31 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buena Vista, Butler, Calhoun and 38 more | 119 min |
| Jun 22, 4:00 AM CDT | Mesoscale Discussion | SPC | Des Moines | 2 hr |
| Jun 22, 4:43 AM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 92 min |
| Jun 22, 3:38 PM CDT | Mesoscale Discussion | SPC | Buchanan, Cedar, Clayton, Clinton, Delaware, Dubuque and 4 more | 97 min |
| Jun 22, 9:06 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 6 more | 114 min |
| Jun 25, 12:50 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Kossuth, Winnebago | 115 min |
| Jun 25, 1:52 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more | 83 min |
| Jun 25, 9:57 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 46 more | 3 hr |
| Jun 29, 5:36 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Fremont, Harrison, Ida, Lyon and 8 more | 114 min |
| Jun 30, 1:29 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Appanoose, Audubon, Benton and 64 more | 3 hr |
| Jun 30, 6:16 PM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Jefferson, Keokuk, Lee and 5 more | 119 min |
| Jul 5, 2:57 PM CDT | Mesoscale Discussion | SPC | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 63 min |
| Jul 5, 7:38 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, O'Brien, Osceola, Winnebago | 97 min |
| Jul 5, 8:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Cedar, Clayton and 9 more | 67 min |
| Jul 5, 10:15 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Crawford, Franklin and 13 more | 90 min |
| Jul 5, 10:46 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 9 more | 89 min |
| Jul 6, 1:27 AM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Benton, Cedar, Clarke, Clinton and 29 more | 2 hr |
| Jul 6, 5:04 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Van Buren | 116 min |
| Jul 7, 12:30 AM CDT | Mesoscale Discussion | SPC | Audubon, Benton, Black Hawk, Boone, Bremer, Buchanan and 51 more | 90 min |
| Jul 7, 1:22 AM CDT | Mesoscale Discussion | SPC | Decatur, Fremont, Page, Ringgold, Taylor, Wayne | 83 min |
| Jul 7, 3:52 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Chickasaw, Fayette and 8 more | 83 min |
| Jul 7, 4:27 AM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 6 more | 93 min |
| Jul 7, 5:26 AM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 2 more | 2 hr |
| Jul 7, 8:10 AM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 95 min |
| Jul 7, 1:50 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 41 more | 115 min |
| Jul 7, 6:30 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 39 more | 2 hr |
| Jul 10, 3:48 AM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Clay, Dickinson, Emmet, Floyd, Hancock and 9 more | 87 min |
| Jul 10, 7:34 AM CDT | Mesoscale Discussion | SPC | Adair, Benton, Black Hawk, Boone, Bremer, Butler and 28 more | 86 min |
| Jul 10, 12:55 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 5 more | 95 min |
| Jul 11, 3:16 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more | 119 min |
| Jul 11, 7:25 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Plymouth, Pottawattamie, Woodbury | 65 min |
| Jul 11, 8:43 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Butler, Calhoun and 35 more | 92 min |
| Jul 13, 7:34 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Cherokee, Chickasaw, Clay, Dickinson and 16 more | 2 hr |
| Jul 13, 10:33 AM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Jasper, Jefferson and 13 more | 117 min |
| Jul 16, 8:55 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Clay, Dickinson, Emmet, Hancock, Kossuth and 7 more | 95 min |
| Jul 17, 2:06 AM CDT | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler and 32 more | 2 hr |
| Jul 17, 7:00 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Louisa | 2 hr |
| Jul 17, 9:46 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Washington | 89 min |
| Jul 17, 11:40 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Decatur, Fremont and 9 more | 95 min |
| Jul 19, 12:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 26 more | 2 hr |
| Jul 21, 11:08 PM CDT | Mesoscale Discussion | SPC | Cedar, Clayton, Clinton, Delaware, Des Moines, Dubuque and 9 more | 67 min |
| Jul 22, 2:39 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 29 more | 3 hr |
| Jul 23, 8:58 AM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Fayette, Howard, Winneshiek | 3 hr |
| Jul 23, 2:08 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 8 more | 3 hr |
| Jul 23, 2:50 PM CDT | Mesoscale Discussion | SPC | Clayton, Delaware, Dubuque, Jackson, Jones | 25 min |
| Jul 23, 5:25 PM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 2 hr |
| Jul 24, 6:03 PM CDT | Mesoscale Discussion | SPC | Lee | 87 min |
| Jul 27, 5:15 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Floyd, Hancock, Howard and 5 more | 90 min |
| Aug 4, 3:58 AM CDT | Mesoscale Discussion | SPC | Dickinson, Osceola | 62 min |
| Aug 4, 12:15 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 11 more | 2 hr |
| Aug 4, 4:44 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Mills, Montgomery and 2 more | 3 hr |
| Aug 4, 4:48 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 15 more | 87 min |
| Aug 4, 7:17 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 16 more | 88 min |
| Aug 4, 8:41 PM CDT | Mesoscale Discussion | SPC | Scott | 64 min |
| Aug 10, 3:52 PM CDT | Mesoscale Discussion | SPC | Boone, Buena Vista, Calhoun, Carroll, Clay, Dallas and 16 more | 113 min |
| Aug 11, 12:37 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 23 more | 2 hr |
| Aug 11, 3:26 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 31 more | 2 hr |
| Aug 11, 6:17 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 54 more | 58 min |
| Aug 11, 9:07 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Boone and 47 more | 53 min |
| Aug 16, 3:19 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Hancock, Kossuth, Lyon and 5 more | 116 min |
| Aug 16, 7:32 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Plymouth, Sioux, Woodbury | 58 min |
| Aug 18, 2:31 PM CDT | Mesoscale Discussion | SPC | Mitchell, Worth | 89 min |
| Aug 18, 5:48 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek | 87 min |
| Aug 18, 7:41 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 3 more | 94 min |
| Aug 18, 9:36 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, Osceola | 84 min |
| Aug 23, 2:05 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Bremer, Buena Vista, Butler, Calhoun and 31 more | 55 min |
| Aug 23, 5:00 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Harrison, Mills and 7 more | 90 min |
| Aug 23, 8:36 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Crawford, Fremont, Harrison and 7 more | 84 min |
| Sep 5, 1:10 AM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 2 hr |
| Sep 6, 2:22 PM CDT | Mesoscale Discussion | SPC | Howard, Mitchell | 2 hr |
| Sep 6, 3:47 PM CDT | Mesoscale Discussion | SPC | Audubon, Bremer, Buena Vista, Butler, Calhoun, Carroll and 26 more | 2 hr |
| Sep 6, 8:16 PM CDT | Mesoscale Discussion | SPC | Allamakee, Winneshiek | 89 min |
| Sep 6, 10:45 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee, Crawford and 15 more | 60 min |
| Sep 7, 1:00 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 9 more | 3 hr |
| Sep 7, 2:47 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Decatur, Fremont, Mills and 6 more | 2 hr |
| Sep 9, 10:42 AM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Cass, Crawford, Fremont, Guthrie and 8 more | 93 min |
| Sep 12, 5:31 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 4 more | 119 min |
| Sep 15, 1:58 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 7 more | 3 hr |
| Sep 15, 3:51 PM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Crawford, Harrison, Ida, Monona and 4 more | 114 min |
| Sep 15, 7:17 PM CDT | Mesoscale Discussion | SPC | Calhoun, Carroll, Crawford, Harrison, Ida, Monona and 2 more | 88 min |
| Sep 19, 2:02 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Cedar, Clarke, Clinton and 26 more | 58 min |
| Sep 19, 5:07 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Buchanan, Cedar and 37 more | 113 min |
| Sep 19, 5:47 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Wayne | 118 min |
| Sep 20, 8:01 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek, Worth | 119 min |
| Sep 20, 11:26 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Howard, Winneshiek | 2 hr |
| Sep 21, 1:33 AM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Winneshiek | 117 min |
| Sep 21, 2:00 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 56 more | 2 hr |
| Sep 21, 6:01 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 10 more | 2 hr |
| Oct 4, 6:08 PM CDT | Mesoscale Discussion | SPC | Lyon, Monona, Plymouth, Sioux, Woodbury | 2 hr |
| Oct 6, 11:15 AM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Page, Pottawattamie | 2 hr |
| Oct 6, 1:22 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Dallas, Decatur and 9 more | 113 min |
| Oct 6, 7:42 PM CDT | Mesoscale Discussion | SPC | Adams, Clarke, Decatur, Lucas, Ringgold, Taylor and 3 more | 93 min |
| Nov 1, 11:46 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Benton, Cass, Cedar and 34 more | 2 hr |
| Nov 28, 4:28 PM CST | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Chickasaw, Davis and 14 more | 92 min |
| Dec 23, 3:48 AM CST | Mesoscale Discussion | SPC | Audubon, Boone, Bremer, Buena Vista, Butler, Calhoun and 29 more | 6 hr |
| Dec 25, 3:27 PM CST | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Mills, Montgomery, Page and 2 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Shelby County42
- Fremont County40
- Harrison County39
- Mills County39
- Montgomery County39
- Page County39
- Pottawattamie County39
- Audubon County38
- Adams County38
- Cass County37
- Clay County36
- Taylor County36
- Carroll County35
- Palo Alto County35
- Crawford County34
- Ida County34
- Kossuth County34
- Monona County33
- Woodbury County33
- Hancock County33
- Sac County32
- Cerro Gordo County32
- Winnebago County32
- Adair County32
- Buena Vista County31
- Dickinson County31
- Emmet County31
- Sioux County31
- Cherokee County30
- Bremer County30
- Calhoun County30
- Howard County30
- Mitchell County30
- Worth County30
- Allamakee County30
- O'Brien County29
- Osceola County29
- Plymouth County29
- Pocahontas County29
- Webster County29
59 more counties
- Winneshiek County29
- Clarke County29
- Guthrie County29
- Boone County28
- Chickasaw County28
- Floyd County28
- Greene County28
- Hamilton County28
- Hardin County28
- Wright County28
- Tama County28
- Franklin County27
- Humboldt County27
- Fayette County27
- Buchanan County27
- Union County27
- Warren County27
- Story County27
- Black Hawk County26
- Benton County26
- Jackson County26
- Polk County26
- Butler County25
- Clayton County25
- Jones County25
- Decatur County25
- Ringgold County25
- Jasper County25
- Grundy County24
- Dubuque County24
- Linn County24
- Marshall County24
- Clinton County24
- Appanoose County24
- Monroe County24
- Davis County24
- Madison County24
- Poweshiek County24
- Lyon County23
- Cedar County23
- Henry County23
- Jefferson County23
- Van Buren County23
- Iowa County23
- Johnson County23
- Delaware County22
- Des Moines County22
- Washington County22
- Lucas County22
- Wayne County22
- Wapello County22
- Dallas County22
- Marion County22
- Louisa County21
- Scott County21
- Mahaska County21
- Lee County20
- Muscatine County19
- Keokuk County19
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.