Alert archive / Iowa / Mesoscale Discussions
Mesoscale Discussions in Iowa, 2007
235 mesoscale discussions in 2007. 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 2007. Tap one for its archive.
- Mesoscale Discussions
- 235
- Busiest month
- August72 mesoscale discussions
- Busiest day
- June 21, 20078 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 14, 11:42 AM CST | Mesoscale Discussion | SPC | Cherokee, Dickinson, Harrison, Ida, Lyon, Monona and 5 more | 6 hr |
| Jan 14, 11:50 AM CST | Mesoscale Discussion | SPC | Adams, Appanoose, Cass, Clarke, Davis, Decatur and 10 more | 5 hr |
| Jan 21, 3:29 AM CST | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 29 more | 6 hr |
| Feb 6, 6:24 AM CST | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clinton, Des Moines and 12 more | 3 hr |
| Feb 12, 6:00 PM CST | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 11 more | 6 hr |
| Feb 23, 7:59 PM CST | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 5 hr |
| Feb 24, 12:08 AM CST | Mesoscale Discussion | SPC | Allamakee | 4 hr |
| Feb 24, 7:25 AM CST | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 39 more | 4 hr |
| Feb 24, 12:19 PM CST | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 42 more | 5 hr |
| Feb 24, 1:34 PM CST | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 3 more | 5 hr |
| Feb 24, 8:00 PM CST | Mesoscale Discussion | SPC | Adair, Allamakee, Audubon, Black Hawk, Boone, Bremer and 54 more | 5 hr |
| Feb 25, 12:48 AM CST | Mesoscale Discussion | SPC | Allamakee, Winneshiek | 4 hr |
| Feb 28, 10:30 PM CST | Mesoscale Discussion | SPC | Lee | 90 min |
| Mar 1, 3:17 AM CST | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 36 more | 6 hr |
| Mar 1, 2:29 PM CST | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 23 more | 3 hr |
| Mar 2, 5:22 PM CST | Mesoscale Discussion | SPC | Crawford, Fremont, Harrison, Mills, Monona, Montgomery and 3 more | 2 hr |
| Mar 18, 10:32 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Davis, Decatur and 23 more | 2 hr |
| Mar 19, 2:57 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 2 more | 2 hr |
| Mar 21, 6:37 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Butler and 36 more | 113 min |
| Mar 21, 9:44 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Dallas, Davis and 24 more | 2 hr |
| Mar 21, 12:30 PM CDT | Mesoscale Discussion | SPC | Clinton, Scott | 90 min |
| Mar 21, 12:58 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Lee, Van Buren | 62 min |
| Mar 21, 1:26 PM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 64 min |
| Mar 21, 4:57 PM CDT | Mesoscale Discussion | SPC | Crawford, Fremont, Harrison, Ida, Mills, Monona and 3 more | 63 min |
| Mar 21, 9:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Boone, Butler, Calhoun, Cerro Gordo and 21 more | 59 min |
| Mar 22, 12:52 AM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 4 more | 53 min |
| Mar 22, 2:02 AM CDT | Mesoscale Discussion | SPC | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 118 min |
| Mar 24, 2:14 AM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Pottawattamie | 91 min |
| Mar 25, 1:48 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 10 more | 87 min |
| Mar 30, 1:18 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Lee and 9 more | 87 min |
| Mar 30, 11:44 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Fremont, Mills and 6 more | 61 min |
| Mar 31, 10:30 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 46 more | 90 min |
| Mar 31, 2:38 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 29 more | 97 min |
| Apr 2, 8:05 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 86 more | 115 min |
| Apr 2, 11:33 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buchanan, Butler, Calhoun, Clayton and 17 more | 57 min |
| Apr 2, 11:40 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Decatur and 11 more | 65 min |
| Apr 3, 1:27 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 49 more | 93 min |
| Apr 3, 2:22 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 24 more | 53 min |
| Apr 3, 4:05 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 3 more | 55 min |
| Apr 11, 7:30 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 19 more | 6 hr |
| Apr 22, 10:57 AM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Page | 93 min |
| Apr 22, 12:07 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Benton, Black Hawk, Boone, Bremer and 55 more | 113 min |
| Apr 22, 1:25 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 26 more | 95 min |
| Apr 22, 5:59 PM CDT | Mesoscale Discussion | SPC | Boone, Clarke, Dallas, Decatur, Dickinson, Humboldt and 6 more | 2 hr |
| Apr 22, 6:36 PM CDT | Mesoscale Discussion | SPC | Appanoose, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 27 more | 114 min |
| Apr 29, 3:52 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Butler, Cerro Gordo, Chickasaw and 10 more | 83 min |
| Apr 30, 3:46 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 25 more | 59 min |
| May 4, 1:19 PM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Monona, Pottawattamie | 86 min |
| May 5, 10:35 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Carroll, Cherokee, Clay, Crawford, Dickinson and 12 more | 85 min |
| May 5, 1:01 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux, Woodbury | 89 min |
| May 5, 4:09 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux, Woodbury | 96 min |
| May 5, 7:26 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux, Woodbury | 94 min |
| May 5, 9:16 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 21 more | 59 min |
| May 6, 1:50 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more | 85 min |
| May 6, 4:08 AM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Madison and 7 more | 2 hr |
| May 6, 7:10 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Grundy, Mahaska, Marshall, Monroe and 3 more | 95 min |
| May 6, 8:26 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Ringgold and 2 more | 64 min |
| May 14, 3:51 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Ida, Monona, O'Brien, Osceola and 2 more | 84 min |
| May 14, 9:07 PM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Monona, Pottawattamie, Shelby | 113 min |
| May 23, 12:30 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Audubon, Benton, Black Hawk, Boone and 45 more | 3 hr |
| May 23, 3:11 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 94 min |
| May 23, 5:19 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 86 min |
| May 23, 5:24 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Butler, Carroll and 24 more | 2 hr |
| May 23, 7:10 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie, Taylor | 35 min |
| May 23, 7:42 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Black Hawk, Bremer, Butler and 31 more | 2 hr |
| May 24, 1:51 AM CDT | Mesoscale Discussion | SPC | Decatur, Page, Ringgold, Taylor | 54 min |
| May 26, 12:54 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clarke, Davis, Decatur, Des Moines and 21 more | 2 hr |
| May 26, 2:40 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 95 min |
| May 30, 12:20 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, O'Brien, Osceola | 85 min |
| May 31, 4:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 18 more | 94 min |
| Jun 1, 11:09 AM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 17 more | 2 hr |
| Jun 1, 2:35 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buchanan, Clayton, Clinton, Delaware, Dubuque and 3 more | 85 min |
| Jun 2, 1:11 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Floyd, Hancock, Howard and 5 more | 94 min |
| Jun 6, 10:53 PM CDT | Mesoscale Discussion | SPC | Lyon, Sioux | 2 hr |
| Jun 7, 3:05 AM CDT | Mesoscale Discussion | SPC | Cherokee, Lyon, Monona, O'Brien, Osceola, Plymouth and 2 more | 55 min |
| Jun 7, 9:11 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Appanoose, Audubon, Benton and 56 more | 64 min |
| Jun 7, 3:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Buchanan, Cedar, Clayton and 19 more | 97 min |
| Jun 7, 9:23 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Dubuque, Henry, Jackson, Johnson and 5 more | 97 min |
| Jun 10, 2:00 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 3 more | 60 min |
| Jun 10, 4:56 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, Osceola | 94 min |
| Jun 20, 11:30 PM CDT | Mesoscale Discussion | SPC | Howard, Mitchell, Winnebago, Worth | 90 min |
| Jun 21, 9:10 AM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 35 min |
| Jun 21, 9:57 AM CDT | Mesoscale Discussion | SPC | Allamakee, Cedar, Clayton, Clinton, Delaware, Des Moines and 10 more | 33 min |
| Jun 21, 11:55 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 16 more | 50 min |
| Jun 21, 2:13 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 50 more | 62 min |
| Jun 21, 3:15 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Ida, Lyon, O'Brien and 4 more | 30 min |
| Jun 21, 3:25 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Audubon, Benton, Black Hawk, Boone and 52 more | 35 min |
| Jun 21, 5:42 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 25 more | 93 min |
| Jun 22, 1:41 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Boone, Clarke, Dallas and 31 more | 64 min |
| Jun 22, 2:21 PM CDT | Mesoscale Discussion | SPC | Crawford, Fremont, Harrison, Ida, Mills, Monona and 5 more | 114 min |
| Jun 22, 7:38 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 64 more | 97 min |
| Jul 3, 3:36 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Kossuth and 7 more | 84 min |
| Jul 3, 6:55 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Buena Vista, Butler, Calhoun and 32 more | 95 min |
| Jul 3, 10:24 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 24 more | 96 min |
| Jul 4, 12:59 AM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 4 more | 3 hr |
| Jul 8, 3:22 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 83 min |
| Jul 8, 6:40 PM CDT | Mesoscale Discussion | SPC | Emmet | 65 min |
| Jul 10, 1:14 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Henry, Lee, Louisa, Scott and 1 more | 61 min |
| Jul 14, 5:24 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Lee, Page, Ringgold and 3 more | 96 min |
| Jul 15, 9:37 PM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Montgomery, Pottawattamie | 83 min |
| Jul 16, 1:36 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Clay, Dickinson, Emmet, Franklin and 13 more | 114 min |
| Jul 16, 3:11 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Clayton, Delaware and 12 more | 2 hr |
| Jul 16, 5:24 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 47 more | 2 hr |
| Jul 16, 7:39 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 50 more | 96 min |
| Jul 16, 9:50 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 4 more | 85 min |
| Jul 17, 2:53 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 26 more | 82 min |
| Jul 17, 6:58 AM CDT | Mesoscale Discussion | SPC | Des Moines | 92 min |
| Jul 17, 1:33 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 20 more | 117 min |
| Jul 17, 5:55 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 19 more | 95 min |
| Jul 17, 11:24 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Buena Vista and 46 more | 96 min |
| Jul 18, 3:35 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 20 more | 85 min |
| Jul 18, 12:47 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Buena Vista and 37 more | 2 hr |
| Jul 18, 4:59 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 17 more | 91 min |
| Jul 18, 6:50 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clarke, Clayton and 29 more | 85 min |
| Jul 18, 9:06 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Henry, Lee, Louisa, Scott | 84 min |
| Jul 18, 10:23 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 60 more | 97 min |
| Jul 19, 1:41 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Black Hawk, Boone, Calhoun, Carroll and 23 more | 94 min |
| Jul 23, 12:51 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Boone, Cerro Gordo, Clarke and 26 more | 114 min |
| Jul 26, 2:58 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 92 min |
| Jul 26, 4:05 PM CDT | Mesoscale Discussion | SPC | Winnebago | 55 min |
| Jul 26, 4:54 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw, Emmet and 18 more | 96 min |
| Jul 26, 8:08 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 35 more | 97 min |
| Aug 4, 1:49 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 7 more | 86 min |
| Aug 4, 1:01 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren | 2 hr |
| Aug 4, 2:51 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 16 more | 114 min |
| Aug 4, 6:09 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 40 more | 66 min |
| Aug 4, 9:07 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Pottawattamie | 53 min |
| Aug 4, 9:22 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 15 more | 53 min |
| Aug 5, 3:54 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Benton, Cass, Cedar and 39 more | 96 min |
| Aug 5, 11:44 PM CDT | Mesoscale Discussion | SPC | Appanoose, Wayne | 91 min |
| Aug 6, 11:08 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 28 more | 97 min |
| Aug 6, 2:22 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 17 more | 83 min |
| Aug 6, 7:24 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 42 more | 96 min |
| Aug 6, 10:28 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Carroll, Cass, Crawford, Fremont and 10 more | 3 hr |
| Aug 7, 1:58 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Cedar, Clarke, Clinton, Davis and 29 more | 2 hr |
| Aug 7, 8:13 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cedar, Clarke, Dallas and 28 more | 92 min |
| Aug 7, 11:46 PM CDT | Mesoscale Discussion | SPC | Fremont, Page, Taylor | 2 hr |
| Aug 8, 3:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 87 min |
| Aug 8, 3:28 PM CDT | Mesoscale Discussion | SPC | Lee | 62 min |
| Aug 8, 7:06 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Fremont, Monroe, Page and 4 more | 54 min |
| Aug 8, 9:16 PM CDT | Mesoscale Discussion | SPC | Lee, Van Buren | 59 min |
| Aug 9, 9:33 PM CDT | Mesoscale Discussion | SPC | Crawford, Harrison, Monona, Plymouth, Woodbury | 87 min |
| Aug 10, 1:45 AM CDT | Mesoscale Discussion | SPC | Cass, Crawford, Fremont, Harrison, Mills, Monona and 5 more | 60 min |
| Aug 11, 9:43 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 3 more | 92 min |
| Aug 11, 11:46 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek | 119 min |
| Aug 12, 1:20 AM CDT | Mesoscale Discussion | SPC | Jackson | 25 min |
| Aug 12, 2:52 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Decatur and 12 more | 83 min |
| Aug 12, 5:49 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Dallas, Guthrie and 9 more | 86 min |
| Aug 12, 8:30 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Lucas, Monroe, Van Buren, Wayne | 90 min |
| Aug 13, 2:59 AM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Audubon, Boone, Calhoun, Carroll and 23 more | 61 min |
| Aug 13, 11:35 PM CDT | Mesoscale Discussion | SPC | Allamakee | 85 min |
| Aug 14, 1:23 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 27 more | 67 min |
| Aug 14, 3:32 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 7 more | 28 min |
| Aug 14, 5:43 AM CDT | Mesoscale Discussion | SPC | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 62 min |
| Aug 14, 3:05 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Benton, Black Hawk, Boone, Calhoun and 28 more | 85 min |
| Aug 14, 6:54 PM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Audubon, Boone, Calhoun, Carroll and 35 more | 66 min |
| Aug 15, 2:28 AM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Sioux | 92 min |
| Aug 15, 7:15 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 14 more | 60 min |
| Aug 15, 7:50 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 7 more | 55 min |
| Aug 15, 12:04 PM CDT | Mesoscale Discussion | SPC | Louisa, Muscatine, Scott | 86 min |
| Aug 16, 5:43 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Harrison and 10 more | 62 min |
| Aug 16, 7:36 AM CDT | Mesoscale Discussion | SPC | Lee | 54 min |
| Aug 18, 3:56 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 2 hr |
| Aug 18, 8:03 PM CDT | Mesoscale Discussion | SPC | Allamakee, Dickinson, Emmet, Howard, Mitchell, Winnebago and 2 more | 3 hr |
| Aug 18, 11:10 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 21 more | 110 min |
| Aug 19, 6:12 AM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buchanan, Butler, Chickasaw, Clayton and 8 more | 93 min |
| Aug 19, 1:20 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Cedar, Chickasaw, Clarke, Clayton and 33 more | 3 hr |
| Aug 20, 9:34 AM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee and 21 more | 56 min |
| Aug 20, 3:03 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Fremont, Harrison, Ida, Lyon and 8 more | 117 min |
| Aug 20, 6:27 PM CDT | Mesoscale Discussion | SPC | Page | 2 hr |
| Aug 20, 7:03 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 17 more | 117 min |
| Aug 20, 7:35 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 15 more | 85 min |
| Aug 20, 10:06 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Boone, Buena Vista, Calhoun and 43 more | 84 min |
| Aug 21, 4:50 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Howard, Mitchell, Osceola, Winnebago and 1 more | 85 min |
| Aug 21, 6:17 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Ida, Lyon and 6 more | 88 min |
| Aug 21, 10:49 PM CDT | Mesoscale Discussion | SPC | Allamakee, Audubon, Benton, Black Hawk, Boone, Bremer and 37 more | 86 min |
| Aug 22, 2:13 AM CDT | Mesoscale Discussion | SPC | Jackson | 62 min |
| Aug 22, 6:45 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 13 more | 60 min |
| Aug 22, 10:12 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Crawford, Humboldt and 8 more | 93 min |
| Aug 22, 2:37 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 40 more | 83 min |
| Aug 22, 6:33 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 87 min |
| Aug 23, 10:36 AM CDT | Mesoscale Discussion | SPC | Cedar, Clayton, Clinton, Delaware, Des Moines, Dubuque and 8 more | 114 min |
| Aug 23, 3:57 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 46 more | 93 min |
| Aug 23, 5:38 PM CDT | Mesoscale Discussion | SPC | Clinton, Muscatine, Scott | 97 min |
| Aug 23, 7:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 17 more | 118 min |
| Aug 23, 7:55 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 17 more | 2 hr |
| Aug 23, 11:01 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Davis, Decatur and 17 more | 119 min |
| Aug 23, 11:07 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Louisa, Washington | 53 min |
| Aug 27, 1:43 AM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 5 more | 92 min |
| Aug 28, 3:24 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Emmet and 14 more | 66 min |
| Aug 28, 4:06 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Butler, Calhoun, Carroll, Cerro Gordo and 22 more | 54 min |
| Aug 28, 6:04 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Audubon, Black Hawk, Boone, Bremer and 23 more | 3 hr |
| Aug 28, 7:12 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 19 more | 63 min |
| Aug 28, 8:17 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Benton, Cedar, Clinton, Dallas and 19 more | 58 min |
| Sep 6, 5:59 PM CDT | Mesoscale Discussion | SPC | Cherokee, Fremont, Harrison, Mills, Monona, Plymouth and 3 more | 91 min |
| Sep 6, 9:30 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 90 min |
| Sep 17, 6:03 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Plymouth, Sioux | 87 min |
| Sep 17, 10:03 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 57 min |
| Sep 18, 3:43 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Cedar, Clarke, Davis, Decatur and 20 more | 2 hr |
| Sep 20, 8:40 PM CDT | Mesoscale Discussion | SPC | Lyon | 95 min |
| Sep 21, 3:17 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 24 more | 88 min |
| Sep 21, 6:17 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Delaware, Des Moines, Dubuque and 16 more | 88 min |
| Sep 24, 3:54 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cass and 32 more | 2 hr |
| Sep 26, 1:41 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 3 more | 64 min |
| Sep 30, 10:13 AM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Cass, Cerro Gordo and 19 more | 2 hr |
| Sep 30, 12:10 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Ringgold and 1 more | 65 min |
| Sep 30, 2:26 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Iowa, Jasper and 16 more | 64 min |
| Sep 30, 3:36 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Lyon, Monona and 6 more | 54 min |
| Sep 30, 5:45 PM CDT | Mesoscale Discussion | SPC | Adair, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 26 more | 60 min |
| Oct 2, 3:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Clarke, Dallas, Decatur, Guthrie and 8 more | 59 min |
| Oct 2, 6:16 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Henry, Jackson, Jefferson, Johnson and 6 more | 59 min |
| Oct 4, 7:51 PM CDT | Mesoscale Discussion | SPC | Carroll, Cherokee, Crawford, Harrison, Ida, Mills and 6 more | 54 min |
| Oct 5, 9:51 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 84 min |
| Oct 17, 7:57 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Van Buren | 63 min |
| Nov 21, 12:28 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 61 more | 5 hr |
| Nov 21, 5:34 PM CST | Mesoscale Discussion | SPC | Cedar, Clayton, Clinton, Delaware, Dubuque, Jackson and 5 more | 4 hr |
| Dec 1, 12:05 AM CST | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Ringgold and 1 more | 4 hr |
| Dec 1, 12:29 AM CST | Mesoscale Discussion | SPC | Monona, Plymouth, Woodbury | 4 hr |
| Dec 1, 6:48 AM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 41 more | 3 hr |
| Dec 1, 7:04 AM CST | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Buena Vista and 46 more | 4 hr |
| Dec 1, 12:01 PM CST | Mesoscale Discussion | SPC | Adair, Allamakee, Appanoose, Audubon, Benton, Black Hawk and 82 more | 6 hr |
| Dec 1, 6:21 PM CST | Mesoscale Discussion | SPC | Allamakee, Clayton, Clinton, Delaware, Dubuque, Fayette and 5 more | 5 hr |
| Dec 6, 4:49 AM CST | Mesoscale Discussion | SPC | Fremont, Mills, Pottawattamie | 4 hr |
| Dec 6, 12:26 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Cass and 38 more | 5 hr |
| Dec 8, 6:00 PM CST | Mesoscale Discussion | SPC | Sioux | 4 hr |
| Dec 10, 5:40 PM CST | Mesoscale Discussion | SPC | Fremont, Mills, Page, Taylor | 5 hr |
| Dec 10, 11:15 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 67 more | 6 hr |
| Dec 11, 5:56 AM CST | Mesoscale Discussion | SPC | Cedar, Clayton, Clinton, Delaware, Des Moines, Dubuque and 7 more | 6 hr |
| Dec 11, 6:28 AM CST | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 9 more | 4 hr |
| Dec 11, 11:47 AM CST | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Decatur, Henry and 14 more | 3 hr |
| Dec 22, 9:30 AM CST | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Lucas, Monroe, Ringgold and 4 more | 3 hr |
| Dec 22, 12:16 PM CST | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Jefferson, Lucas and 5 more | 4 hr |
| Dec 22, 6:46 PM CST | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Buchanan, Cedar, Clayton and 29 more | 4 hr |
| Dec 23, 12:37 AM CST | Mesoscale Discussion | SPC | Allamakee, Clayton, Clinton, Delaware, Dubuque, Jackson and 1 more | 6 hr |
| Dec 28, 12:10 AM CST | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 4 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clarke County58
- Union County58
- Delaware County58
- Linn County58
- Decatur County57
- Monroe County57
- Ringgold County57
- Clayton County56
- Madison County56
- Fayette County55
- Wapello County55
- Adair County55
- Appanoose County54
- Lucas County54
- Wayne County54
- Poweshiek County54
- Black Hawk County53
- Buchanan County53
- Webster County53
- Mahaska County53
- Warren County53
- Page County52
- Boone County52
- Jones County52
- Tama County52
- Johnson County52
- Muscatine County52
- Marion County52
- Monona County51
- Davis County51
- Mills County51
- Carroll County51
- Dallas County51
- Greene County51
- Shelby County51
- Woodbury County50
- Fremont County50
- Taylor County50
- Allamakee County50
- Benton County50
59 more counties
- Butler County50
- Dubuque County50
- Hardin County50
- Cedar County50
- Scott County50
- Polk County50
- Calhoun County50
- Guthrie County50
- Sac County50
- Harrison County49
- Adams County49
- Bremer County49
- Grundy County49
- Hamilton County49
- Jackson County49
- Marshall County49
- Clinton County49
- Iowa County49
- Keokuk County49
- Pottawattamie County49
- Chickasaw County48
- Story County48
- Jasper County48
- Audubon County48
- Franklin County47
- Howard County47
- Winneshiek County47
- Crawford County47
- Plymouth County46
- Cass County46
- Montgomery County46
- Pocahontas County46
- Louisa County46
- Sioux County45
- Mitchell County45
- Worth County45
- Jefferson County45
- Van Buren County45
- Ida County44
- Floyd County44
- Humboldt County44
- Wright County44
- Cherokee County43
- Henry County43
- Washington County43
- Lyon County42
- Cerro Gordo County42
- O'Brien County41
- Winnebago County40
- Clay County40
- Hancock County39
- Buena Vista County39
- Dickinson County38
- Emmet County38
- Palo Alto County38
- Osceola County37
- Kossuth County37
- Des Moines County37
- Lee County36
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.