Alert archive / Iowa / Mesoscale Discussions
Mesoscale Discussions in Iowa, 2012
148 mesoscale discussions in 2012. 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 2012. Tap one for its archive.
- Mesoscale Discussions
- 148
- Busiest month
- May49 mesoscale discussions
- Busiest day
- April 15, 20126 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 16, 10:24 PM CST | Mesoscale Discussion | SPC | Decatur, Ringgold, Wayne | 5 hr |
| Feb 4, 3:27 AM CST | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Page, Pottawattamie | 4 hr |
| Feb 23, 8:45 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 51 more | 5 hr |
| Feb 28, 6:18 AM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 5 hr |
| Feb 28, 11:43 AM CST | Mesoscale Discussion | SPC | Lyon, Osceola | 5 hr |
| Feb 28, 8:23 PM CST | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 37 min |
| Mar 2, 11:06 AM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Delaware, Des Moines, Dubuque and 15 more | 4 hr |
| Mar 19, 1:34 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 30 more | 116 min |
| Mar 19, 3:40 PM CDT | Mesoscale Discussion | SPC | Appanoose, Boone, Clarke, Dallas, Davis, Decatur and 13 more | 95 min |
| Mar 19, 6:43 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 11 more | 62 min |
| Mar 23, 1:58 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 2 hr |
| Mar 27, 3:58 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clayton, Clinton, Delaware, Des Moines and 17 more | 2 hr |
| Mar 27, 8:43 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 2 hr |
| Mar 28, 11:21 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Decatur, Fremont, Mills, Montgomery and 6 more | 84 min |
| Mar 29, 6:58 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 62 min |
| Mar 29, 7:55 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 12 more | 65 min |
| Mar 29, 9:51 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 54 min |
| Mar 29, 11:50 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Lucas, Madison, Mahaska and 6 more | 55 min |
| Mar 30, 3:20 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Crawford, Fremont, Harrison and 7 more | 85 min |
| Mar 31, 8:52 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clinton, Delaware and 20 more | 53 min |
| Apr 1, 1:33 AM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 117 min |
| Apr 1, 7:56 AM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 2 hr |
| Apr 14, 2:15 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 5 more | 90 min |
| Apr 14, 4:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 17 more | 58 min |
| Apr 14, 6:57 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 23 more | 63 min |
| Apr 14, 7:50 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Delaware, Henry, Iowa and 13 more | 55 min |
| Apr 14, 7:51 PM CDT | Mesoscale Discussion | SPC | Cherokee, Ida, Lyon, Monona, O'Brien, Osceola and 3 more | 84 min |
| Apr 14, 9:54 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Jackson, Jones, Louisa, Muscatine and 1 more | 96 min |
| Apr 14, 11:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more | 92 min |
| Apr 15, 3:25 AM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 5 more | 95 min |
| Apr 15, 1:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 28 more | 94 min |
| Apr 19, 2:23 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Crawford, Dallas and 7 more | 97 min |
| May 1, 2:30 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 4 more | 60 min |
| May 1, 6:11 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 3 more | 94 min |
| May 1, 7:30 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Harrison, Ida, Monona, Plymouth and 1 more | 2 hr |
| May 1, 11:08 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 47 more | 2 hr |
| May 2, 2:02 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 22 more | 58 min |
| May 2, 3:34 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 2 more | 86 min |
| May 2, 10:43 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Plymouth, Sioux, Woodbury | 62 min |
| May 3, 3:05 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Decatur, Montgomery and 4 more | 85 min |
| May 3, 2:12 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 18 more | 2 hr |
| May 3, 3:41 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Fremont, Madison and 7 more | 2 hr |
| May 3, 6:42 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Des Moines, Henry, Lee and 5 more | 63 min |
| May 3, 11:18 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Cedar, Clarke and 23 more | 27 min |
| May 4, 2:16 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Des Moines, Henry, Jefferson and 9 more | 119 min |
| May 4, 1:50 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 7 more | 25 min |
| May 4, 3:52 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 17 more | 53 min |
| May 4, 5:31 PM CDT | Mesoscale Discussion | SPC | Audubon, Benton, Black Hawk, Boone, Bremer, Buchanan and 66 more | 29 min |
| May 4, 8:30 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 10 more | 60 min |
| May 4, 9:54 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Crawford, Harrison, Ida, Monona and 5 more | 96 min |
| May 5, 2:09 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 8 more | 96 min |
| May 5, 2:58 PM CDT | Mesoscale Discussion | SPC | Allamakee, Dickinson, Emmet, Howard, Kossuth, Mitchell and 3 more | 62 min |
| May 5, 3:52 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 8 more | 83 min |
| May 5, 4:56 PM CDT | Mesoscale Discussion | SPC | Bremer, Buchanan, Clayton, Delaware, Dubuque, Fayette and 1 more | 94 min |
| May 5, 11:31 PM CDT | Mesoscale Discussion | SPC | Lyon | 89 min |
| May 6, 2:12 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Butler, Cerro Gordo, Cherokee, Clay, Dickinson and 17 more | 63 min |
| May 6, 4:55 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Guthrie and 8 more | 2 hr |
| May 6, 8:40 AM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 9 more | 65 min |
| May 6, 3:56 PM CDT | Mesoscale Discussion | SPC | Lee | 64 min |
| May 15, 2:51 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Delaware, Dubuque, Iowa and 12 more | 54 min |
| May 15, 4:58 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Jackson, Jones, Linn | 62 min |
| May 19, 2:36 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Pottawattamie | 84 min |
| May 19, 5:41 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Harrison, Ida and 10 more | 64 min |
| May 19, 8:11 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 13 more | 64 min |
| May 19, 9:18 PM CDT | Mesoscale Discussion | SPC | Mills, Pottawattamie | 57 min |
| May 19, 10:33 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 20 more | 57 min |
| May 23, 2:56 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Carroll, Cherokee, Clay, Crawford, Harrison and 11 more | 94 min |
| May 23, 6:49 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Crawford, Dickinson and 11 more | 86 min |
| May 23, 8:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 23 more | 94 min |
| May 24, 6:33 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Chickasaw, Clayton and 8 more | 57 min |
| May 24, 1:34 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 10 more | 116 min |
| May 24, 3:06 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 38 more | 114 min |
| May 24, 5:42 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Buchanan, Cedar and 24 more | 2 hr |
| May 25, 3:09 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Boone and 43 more | 2 hr |
| May 25, 9:17 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 30 more | 88 min |
| May 26, 12:46 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 44 more | 89 min |
| May 27, 2:58 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 13 more | 62 min |
| May 27, 6:55 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Ida, Lyon and 6 more | 2 hr |
| May 27, 9:51 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 5 more | 84 min |
| May 28, 12:00 PM CDT | Mesoscale Discussion | SPC | Clayton, Dubuque | 60 min |
| May 28, 4:59 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee, Scott | 91 min |
| Jun 2, 1:05 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Johnson and 8 more | 115 min |
| Jun 3, 8:04 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 38 more | 86 min |
| Jun 10, 3:10 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 34 more | 65 min |
| Jun 10, 6:20 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more | 55 min |
| Jun 10, 10:22 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more | 53 min |
| Jun 14, 1:44 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, O'Brien, Osceola, Sioux | 2 hr |
| Jun 14, 6:07 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 15 more | 83 min |
| Jun 15, 2:37 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Decatur, Jasper and 13 more | 113 min |
| Jun 15, 5:19 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 25 more | 56 min |
| Jun 16, 11:40 AM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Decatur, Lucas, Marion and 7 more | 95 min |
| Jun 16, 12:42 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Henry, Lee, Louisa, Muscatine and 2 more | 63 min |
| Jun 16, 3:38 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clinton, Davis, Des Moines, Henry, Jefferson and 8 more | 97 min |
| Jun 20, 2:10 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Butler, Cerro Gordo, Chickasaw, Clay, Dickinson and 15 more | 95 min |
| Jun 20, 3:24 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 19 more | 96 min |
| Jun 23, 1:18 AM CDT | Mesoscale Discussion | SPC | Cherokee, Fremont, Harrison, Ida, Mills, Monona and 6 more | 87 min |
| Jun 29, 7:59 AM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 91 min |
| Jun 29, 2:43 PM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Benton, Black Hawk, Boone, Buchanan and 31 more | 3 hr |
| Jun 29, 5:04 PM CDT | Mesoscale Discussion | SPC | Iowa, Johnson, Poweshiek | 26 min |
| Jun 29, 5:35 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, Osceola | 55 min |
| Jun 29, 7:33 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 19 more | 87 min |
| Jun 29, 11:46 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Louisa, Muscatine, Scott | 119 min |
| Jun 30, 3:34 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 86 min |
| Jul 1, 3:35 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 13 more | 55 min |
| Jul 13, 1:35 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 8 more | 55 min |
| Jul 13, 6:02 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Clay, Emmet, Hancock, Kossuth, Mitchell and 3 more | 88 min |
| Jul 14, 4:32 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 10 more | 88 min |
| Jul 18, 11:38 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 18 more | 67 min |
| Jul 18, 3:07 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 22 more | 53 min |
| Jul 22, 2:32 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Mitchell and 3 more | 88 min |
| Jul 23, 11:13 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Howard, Mitchell, Winneshiek and 1 more | 92 min |
| Jul 24, 3:32 AM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson | 58 min |
| Jul 25, 7:20 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 25 more | 85 min |
| Jul 25, 7:21 PM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Page, Pottawattamie and 1 more | 54 min |
| Jul 25, 8:40 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clayton, Clinton, Delaware and 17 more | 65 min |
| Jul 25, 11:34 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Dubuque, Jackson, Jones, Scott | 86 min |
| Jul 29, 3:25 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Davis, Des Moines, Hamilton, Hardin and 20 more | 2 hr |
| Aug 3, 6:19 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 5 more | 86 min |
| Aug 3, 10:33 PM CDT | Mesoscale Discussion | SPC | Worth | 87 min |
| Aug 4, 10:26 AM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Boone, Bremer, Buchanan and 44 more | 49 min |
| Aug 4, 1:09 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clayton, Clinton, Delaware and 15 more | 66 min |
| Aug 8, 12:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 17 more | 62 min |
| Aug 8, 4:10 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 36 more | 95 min |
| Aug 9, 5:11 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 23 more | 94 min |
| Aug 12, 3:39 PM CDT | Mesoscale Discussion | SPC | Adams, Decatur, Ringgold, Taylor, Union | 2 hr |
| Aug 15, 2:56 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 2 more | 64 min |
| Aug 16, 3:57 AM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Appanoose, Benton, Black Hawk, Boone and 52 more | 3 hr |
| Sep 4, 1:33 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Chickasaw, Clayton, Delaware, Fayette and 2 more | 117 min |
| Sep 4, 5:08 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona | 97 min |
| Sep 4, 6:39 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 9 more | 66 min |
| Sep 4, 7:27 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 63 min |
| Sep 4, 8:30 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 8 more | 60 min |
| Sep 4, 9:51 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Clay, Dickinson, Emmet and 12 more | 54 min |
| Sep 5, 1:14 AM CDT | Mesoscale Discussion | SPC | Allamakee, Audubon, Benton, Black Hawk, Boone, Bremer and 54 more | 91 min |
| Sep 5, 3:43 AM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Des Moines, Dubuque, Henry and 14 more | 92 min |
| Sep 6, 9:33 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 25 more | 117 min |
| Sep 6, 11:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Buena Vista, Calhoun, Carroll and 33 more | 2 hr |
| Oct 13, 7:04 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Pottawattamie and 1 more | 56 min |
| Oct 22, 1:08 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 49 more | 3 hr |
| Oct 24, 6:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 23 more | 2 hr |
| Oct 24, 11:20 PM CDT | Mesoscale Discussion | SPC | Audubon, Calhoun, Carroll, Cass, Crawford, Fremont and 11 more | 115 min |
| Nov 10, 7:56 PM CST | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 12 more | 94 min |
| Dec 3, 3:29 PM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Jackson, Lee, Louisa and 2 more | 91 min |
| Dec 19, 2:08 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 48 more | 6 hr |
| Dec 19, 9:32 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 24 more | 5 hr |
| Dec 20, 3:12 AM CST | Mesoscale Discussion | SPC | Allamakee, Clayton, Winneshiek | 4 hr |
| Dec 20, 7:49 AM CST | Mesoscale Discussion | SPC | Appanoose, Cedar, Davis, Des Moines, Henry, Jefferson and 10 more | 4 hr |
| Dec 20, 10:52 AM CST | Mesoscale Discussion | SPC | Clinton, Des Moines, Scott | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County40
- Mills County38
- Montgomery County38
- Harrison County38
- Ida County38
- Clay County37
- Cass County36
- Buena Vista County36
- Page County35
- Cherokee County35
- Shelby County35
- Fremont County34
- Adams County34
- Audubon County34
- Guthrie County34
- Sac County34
- Woodbury County34
- O'Brien County33
- Carroll County33
- Crawford County33
- Monona County33
- Madison County32
- Union County32
- Dallas County31
- Linn County31
- Dickinson County31
- Calhoun County31
- Mahaska County30
- Emmet County30
- Pocahontas County30
- Ringgold County29
- Adair County29
- Boone County29
- Cedar County29
- Greene County29
- Keokuk County29
- Scott County29
- Plymouth County29
- Palo Alto County29
- Iowa County28
59 more counties
- Louisa County28
- Muscatine County28
- Polk County28
- Poweshiek County28
- Story County28
- Benton County27
- Black Hawk County27
- Clayton County27
- Clinton County27
- Delaware County27
- Des Moines County27
- Jackson County27
- Marion County27
- Monroe County27
- Taylor County27
- Buchanan County26
- Grundy County26
- Henry County26
- Johnson County26
- Jones County26
- Tama County26
- Washington County26
- Osceola County26
- Webster County26
- Dubuque County25
- Jasper County25
- Jefferson County25
- Warren County25
- Sioux County25
- Humboldt County25
- Kossuth County25
- Butler County25
- Decatur County24
- Clarke County24
- Fayette County24
- Marshall County24
- Wapello County24
- Hamilton County24
- Franklin County24
- Appanoose County23
- Hardin County23
- Lucas County23
- Van Buren County23
- Lyon County23
- Wright County23
- Bremer County23
- Chickasaw County23
- Lee County22
- Howard County22
- Mitchell County21
- Winneshiek County21
- Worth County21
- Wayne County20
- Hancock County19
- Cerro Gordo County19
- Floyd County19
- Davis County18
- Winnebago County18
- Allamakee County18
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.