Alert archive / Iowa / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Iowa, 2018
597 severe thunderstorm warnings 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Severe Thunderstorm Warnings
- 597
- Busiest month
- June211 severe thunderstorm warnings
- Busiest day
- August 28, 201836 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Apr 13, 7:08 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 37 min |
| Apr 13, 3:01 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 29 min |
| Apr 13, 3:22 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 23 min |
| Apr 13, 3:27 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 33 min |
| Apr 13, 3:52 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 38 min |
| Apr 13, 4:06 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 24 min |
| Apr 13, 4:18 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 57 min |
| Apr 13, 4:24 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 36 min |
| Apr 13, 4:29 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 31 min |
| Apr 13, 4:34 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 26 min |
| Apr 13, 4:47 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 43 min |
| Apr 13, 4:57 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 33 min |
| Apr 13, 5:36 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 39 min |
| Apr 13, 6:02 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Greene, Webster | 43 min |
| Apr 13, 6:19 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 26 min |
| Apr 13, 6:36 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 24 min |
| Apr 13, 6:39 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 51 min |
| Apr 13, 6:52 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene | 38 min |
| Apr 13, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 63 min |
| Apr 13, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 40 min |
| Apr 13, 7:18 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 42 min |
| Apr 13, 7:23 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Hardin, Marshall, Story | 52 min |
| Apr 13, 7:49 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Madison, Union | 41 min |
| Apr 13, 7:52 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Marshall, Story, Wright | 39 min |
| Apr 13, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 36 min |
| Apr 13, 8:00 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 18 min |
| Apr 13, 8:19 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Grundy | 41 min |
| Apr 13, 8:25 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 35 min |
| Apr 13, 8:32 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison, Union | 37 min |
| Apr 13, 8:43 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 36 min |
| Apr 13, 8:46 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 29 min |
| Apr 18, 5:43 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 47 min |
| May 1, 4:00 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Woodbury | 45 min |
| May 1, 4:35 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Story | 40 min |
| May 1, 4:37 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay | 38 min |
| May 1, 5:08 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 52 min |
| May 1, 5:09 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 51 min |
| May 1, 5:11 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 32 min |
| May 1, 5:24 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Wright | 33 min |
| May 1, 5:29 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 46 min |
| May 1, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 44 min |
| May 1, 5:54 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Story | 36 min |
| May 1, 6:05 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 40 min |
| May 1, 6:08 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 52 min |
| May 1, 6:24 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Tama | 36 min |
| May 1, 6:40 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Wright | 50 min |
| May 1, 7:15 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 45 min |
| May 1, 7:25 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, O'Brien, Osceola | 35 min |
| May 1, 7:47 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass, Guthrie | 43 min |
| May 1, 8:17 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie | 43 min |
| May 1, 8:25 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 35 min |
| May 2, 2:53 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 41 min |
| May 2, 4:39 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 38 min |
| May 2, 5:04 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 56 min |
| May 2, 5:10 PM CDT | Severe Thunderstorm Warning | OAX | Page | 35 min |
| May 2, 5:32 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 43 min |
| May 2, 5:44 PM CDT | Severe Thunderstorm Warning | OAX | Page | 16 min |
| May 2, 5:58 PM CDT | Severe Thunderstorm Warning | OAX | Page | 17 min |
| May 2, 6:15 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor, Union | 45 min |
| May 2, 6:20 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 15 min |
| May 2, 6:24 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Union | 51 min |
| May 2, 6:34 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 56 min |
| May 2, 7:18 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Washington | 57 min |
| May 2, 7:51 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 39 min |
| May 2, 7:58 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 29 min |
| May 2, 8:05 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 40 min |
| May 2, 8:07 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Muscatine | 53 min |
| May 2, 8:19 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 36 min |
| May 2, 8:34 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Scott | 27 min |
| May 2, 8:43 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Taylor, Union | 47 min |
| May 2, 11:33 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 29 min |
| May 3, 5:39 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Warren | 25 min |
| May 3, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 50 min |
| May 3, 7:50 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Story | 55 min |
| May 3, 8:23 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Tama | 52 min |
| May 3, 8:48 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 42 min |
| May 4, 6:39 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 19 min |
| May 8, 8:14 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 46 min |
| May 8, 8:58 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 32 min |
| May 12, 1:44 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 31 min |
| May 12, 1:58 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 47 min |
| May 12, 3:39 AM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 33 min |
| May 12, 3:50 AM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Louisa, Washington | 40 min |
| May 13, 2:17 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 43 min |
| May 14, 2:27 AM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 48 min |
| May 14, 3:07 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Sac | 32 min |
| May 14, 7:21 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 24 min |
| May 14, 7:43 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 32 min |
| May 14, 8:29 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Louisa, Washington | 46 min |
| May 14, 8:49 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Wayne | 26 min |
| May 14, 9:12 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 39 min |
| May 14, 9:13 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Wayne | 47 min |
| May 25, 3:35 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 25 min |
| May 25, 4:11 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 49 min |
| May 25, 4:58 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 47 min |
| May 25, 5:28 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hardin | 62 min |
| May 25, 5:38 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 19 min |
| May 25, 5:48 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 42 min |
| May 25, 6:06 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 24 min |
| May 25, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 50 min |
| May 25, 6:31 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin | 44 min |
| May 25, 6:43 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 47 min |
| May 25, 6:48 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 27 min |
| May 25, 6:55 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 50 min |
| May 25, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 48 min |
| May 25, 7:05 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 40 min |
| May 25, 7:06 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Marshall, Tama | 54 min |
| May 25, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall | 29 min |
| May 25, 7:23 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Dubuque | 52 min |
| May 25, 7:39 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 28 min |
| May 25, 7:40 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 65 min |
| May 25, 7:46 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Tama | 25 min |
| May 25, 8:10 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Dubuque, Jackson | 50 min |
| May 25, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 19 min |
| May 25, 8:25 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 19 min |
| May 25, 10:26 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 34 min |
| May 26, 12:35 AM CDT | Severe Thunderstorm Warning | DVN | Iowa | 40 min |
| May 26, 12:51 AM CDT | Severe Thunderstorm Warning | DVN | Benton | 24 min |
| May 26, 1:07 AM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Linn | 38 min |
| May 26, 3:53 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 37 min |
| May 26, 5:19 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 27 min |
| May 27, 2:49 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 16 min |
| May 27, 3:11 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 49 min |
| May 27, 4:20 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 18 min |
| May 28, 2:50 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Story | 40 min |
| May 28, 3:20 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 25 min |
| May 28, 3:32 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 28 min |
| May 28, 3:42 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 48 min |
| May 28, 4:35 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 40 min |
| May 28, 4:48 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 27 min |
| May 28, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Wright | 57 min |
| May 28, 5:41 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 64 min |
| May 29, 2:34 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 26 min |
| May 29, 2:50 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 14 min |
| May 29, 3:24 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 21 min |
| May 29, 3:27 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 18 min |
| May 29, 3:30 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 18 min |
| May 29, 3:36 PM CDT | Severe Thunderstorm Warning | DMX | Story | 24 min |
| May 29, 3:45 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 30 min |
| May 29, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 41 min |
| May 29, 3:54 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 36 min |
| May 29, 3:59 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Story | 16 min |
| May 29, 4:18 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 42 min |
| May 29, 4:20 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page, Pottawattamie | 40 min |
| May 29, 4:28 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 32 min |
| May 29, 4:58 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 47 min |
| May 29, 5:15 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 45 min |
| May 29, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 34 min |
| May 29, 5:37 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 23 min |
| May 29, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie, Madison | 30 min |
| May 29, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 33 min |
| May 29, 6:14 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 46 min |
| May 29, 6:24 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 21 min |
| May 29, 6:50 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 15 min |
| May 29, 10:38 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 52 min |
| Jun 1, 9:34 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 41 min |
| Jun 1, 11:20 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 55 min |
| Jun 1, 11:37 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 23 min |
| Jun 1, 11:41 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 49 min |
| Jun 2, 12:19 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 41 min |
| Jun 2, 12:19 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 41 min |
| Jun 2, 1:54 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 51 min |
| Jun 6, 7:10 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Webster | 50 min |
| Jun 6, 10:30 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas | 15 min |
| Jun 6, 3:19 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas | 41 min |
| Jun 6, 3:29 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Webster | 46 min |
| Jun 6, 3:50 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 40 min |
| Jun 6, 3:51 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 54 min |
| Jun 6, 4:04 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 41 min |
| Jun 6, 4:15 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story, Webster | 45 min |
| Jun 6, 4:19 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 33 min |
| Jun 6, 4:22 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 38 min |
| Jun 6, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Tama | 41 min |
| Jun 6, 4:40 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Story | 50 min |
| Jun 6, 4:47 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall, Story | 43 min |
| Jun 6, 4:59 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Greene | 46 min |
| Jun 6, 5:00 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Story | 48 min |
| Jun 6, 5:14 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 61 min |
| Jun 6, 5:19 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Story | 41 min |
| Jun 6, 5:25 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk | 35 min |
| Jun 6, 5:28 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story, Tama | 47 min |
| Jun 6, 5:36 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 39 min |
| Jun 6, 5:39 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Greene, Guthrie | 66 min |
| Jun 6, 5:43 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 47 min |
| Jun 6, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Tama | 58 min |
| Jun 6, 5:57 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie, Polk | 63 min |
| Jun 6, 6:07 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 53 min |
| Jun 6, 6:08 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Poweshiek, Tama | 37 min |
| Jun 6, 6:29 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford | 36 min |
| Jun 6, 6:39 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk, Warren | 81 min |
| Jun 6, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 62 min |
| Jun 6, 7:15 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion, Monroe, Wapello, Warren | 60 min |
| Jun 6, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 60 min |
| Jun 6, 7:59 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 46 min |
| Jun 6, 8:03 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 27 min |
| Jun 6, 8:18 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wapello | 29 min |
| Jun 6, 8:55 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 50 min |
| Jun 6, 9:39 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 14 min |
| Jun 6, 9:53 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 22 min |
| Jun 6, 9:56 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 28 min |
| Jun 6, 10:07 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 23 min |
| Jun 6, 10:22 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 23 min |
| Jun 6, 11:13 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 32 min |
| Jun 6, 11:24 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 36 min |
| Jun 7, 9:14 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 46 min |
| Jun 8, 2:02 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 13 min |
| Jun 8, 2:05 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 26 min |
| Jun 8, 3:02 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 43 min |
| Jun 8, 6:07 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 38 min |
| Jun 8, 6:36 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 39 min |
| Jun 8, 7:07 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 41 min |
| Jun 9, 3:25 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Pottawattamie | 50 min |
| Jun 9, 4:15 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 30 min |
| Jun 9, 4:28 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 47 min |
| Jun 9, 8:47 AM CDT | Severe Thunderstorm Warning | DVN | Johnson, Linn | 42 min |
| Jun 9, 12:40 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 50 min |
| Jun 9, 1:10 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 65 min |
| Jun 9, 2:52 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 38 min |
| Jun 9, 3:51 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 54 min |
| Jun 9, 3:57 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 48 min |
| Jun 9, 4:41 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 79 min |
| Jun 9, 5:39 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 66 min |
| Jun 9, 5:58 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 47 min |
| Jun 9, 6:07 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 83 min |
| Jun 9, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 51 min |
| Jun 9, 6:20 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 55 min |
| Jun 9, 6:45 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 45 min |
| Jun 9, 6:58 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 32 min |
| Jun 9, 7:02 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 88 min |
| Jun 9, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 54 min |
| Jun 9, 7:28 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 47 min |
| Jun 9, 7:30 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 45 min |
| Jun 9, 7:46 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 29 min |
| Jun 9, 7:51 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 54 min |
| Jun 9, 8:44 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 61 min |
| Jun 9, 8:51 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Tama | 54 min |
| Jun 9, 9:10 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 50 min |
| Jun 9, 9:13 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 32 min |
| Jun 9, 9:20 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 70 min |
| Jun 9, 9:44 PM CDT | Severe Thunderstorm Warning | DVN | Iowa | 46 min |
| Jun 9, 9:45 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 60 min |
| Jun 9, 10:36 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 54 min |
| Jun 9, 10:42 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Jones, Linn | 48 min |
| Jun 9, 10:56 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk, Washington | 49 min |
| Jun 9, 11:16 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones | 44 min |
| Jun 9, 11:34 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Scott | 41 min |
| Jun 10, 12:17 AM CDT | Severe Thunderstorm Warning | DVN | Clinton | 43 min |
| Jun 10, 9:08 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 37 min |
| Jun 11, 12:04 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur | 41 min |
| Jun 11, 12:21 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Union | 39 min |
| Jun 11, 12:43 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 62 min |
| Jun 11, 1:37 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 42 min |
| Jun 11, 1:45 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 30 min |
| Jun 11, 4:20 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 25 min |
| Jun 11, 5:24 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 51 min |
| Jun 11, 5:46 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie, Shelby | 44 min |
| Jun 11, 6:11 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 32 min |
| Jun 11, 6:13 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 62 min |
| Jun 11, 6:21 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 39 min |
| Jun 11, 6:28 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 47 min |
| Jun 11, 6:35 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 55 min |
| Jun 11, 7:09 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 36 min |
| Jun 11, 7:09 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Page | 51 min |
| Jun 11, 7:27 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 33 min |
| Jun 11, 7:27 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 48 min |
| Jun 11, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 35 min |
| Jun 11, 7:43 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 32 min |
| Jun 11, 7:53 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 52 min |
| Jun 11, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 63 min |
| Jun 11, 8:01 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Sac | 28 min |
| Jun 11, 8:09 PM CDT | Severe Thunderstorm Warning | DMX | Adams | 51 min |
| Jun 11, 8:18 PM CDT | Severe Thunderstorm Warning | OAX | Page | 27 min |
| Jun 11, 8:27 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 32 min |
| Jun 11, 8:46 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Greene, Webster | 44 min |
| Jun 11, 8:51 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 54 min |
| Jun 11, 8:59 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 31 min |
| Jun 12, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Pocahontas, Webster | 46 min |
| Jun 12, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 45 min |
| Jun 14, 2:52 AM CDT | Severe Thunderstorm Warning | DMX | Webster | 27 min |
| Jun 14, 3:15 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 30 min |
| Jun 14, 3:25 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 18 min |
| Jun 14, 3:41 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 34 min |
| Jun 14, 4:18 AM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 27 min |
| Jun 14, 5:32 AM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 28 min |
| Jun 14, 6:20 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 12 min |
| Jun 14, 10:50 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 16 min |
| Jun 14, 12:31 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 59 min |
| Jun 17, 3:46 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 29 min |
| Jun 17, 4:09 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 36 min |
| Jun 17, 4:29 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 31 min |
| Jun 17, 6:14 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 31 min |
| Jun 18, 2:21 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 39 min |
| Jun 18, 2:55 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 43 min |
| Jun 18, 3:06 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 24 min |
| Jun 18, 3:23 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 37 min |
| Jun 18, 3:56 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 16 min |
| Jun 18, 3:57 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 48 min |
| Jun 18, 4:13 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 34 min |
| Jun 18, 6:47 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 43 min |
| Jun 18, 7:13 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 32 min |
| Jun 18, 7:22 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Woodbury | 23 min |
| Jun 19, 12:29 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 31 min |
| Jun 19, 1:23 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 41 min |
| Jun 19, 2:07 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Carroll, Greene | 47 min |
| Jun 20, 12:49 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion | 41 min |
| Jun 20, 3:10 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Louisa, Washington | 65 min |
| Jun 20, 4:06 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Wright | 39 min |
| Jun 20, 4:33 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jones, Linn | 42 min |
| Jun 20, 6:05 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 41 min |
| Jun 20, 6:45 PM CDT | Severe Thunderstorm Warning | DMX | Story | 30 min |
| Jun 24, 2:52 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 38 min |
| Jun 24, 3:19 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene, Guthrie | 41 min |
| Jun 24, 4:00 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Sac | 45 min |
| Jun 24, 4:03 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 27 min |
| Jun 24, 4:24 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene, Sac | 33 min |
| Jun 24, 5:01 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 44 min |
| Jun 24, 5:26 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 49 min |
| Jun 24, 5:29 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 46 min |
| Jun 24, 5:48 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 42 min |
| Jun 24, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago | 27 min |
| Jun 24, 6:18 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 42 min |
| Jun 24, 8:10 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 35 min |
| Jun 25, 7:46 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk, Warren | 30 min |
| Jun 25, 8:35 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 25 min |
| Jun 28, 9:14 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 61 min |
| Jun 28, 9:40 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 35 min |
| Jun 28, 10:02 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 58 min |
| Jun 28, 10:08 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 37 min |
| Jun 28, 10:30 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Cass, Crawford | 60 min |
| Jun 28, 11:01 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Audubon, Cass, Guthrie | 59 min |
| Jun 28, 11:26 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Clarke, Decatur, Madison, Ringgold and 2 more | 64 min |
| Jun 28, 11:51 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Madison, Warren | 39 min |
| Jun 28, 12:04 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Ringgold, Warren, Wayne | 56 min |
| Jun 28, 12:12 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 48 min |
| Jun 28, 12:38 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Mahaska, Marion, Monroe, Wayne | 67 min |
| Jun 28, 12:57 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Decatur, Wayne | 48 min |
| Jun 28, 1:06 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Mahaska, Wapello | 54 min |
| Jun 28, 1:12 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Van Buren | 63 min |
| Jun 28, 1:54 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Van Buren, Washington | 66 min |
| Jun 28, 2:29 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 46 min |
| Jun 30, 12:10 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee | 35 min |
| Jun 30, 12:39 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 36 min |
| Jun 30, 1:05 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 40 min |
| Jun 30, 1:38 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 52 min |
| Jun 30, 1:54 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 51 min |
| Jun 30, 2:23 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Wright | 52 min |
| Jun 30, 2:45 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 45 min |
| Jun 30, 2:55 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Wright | 65 min |
| Jun 30, 3:56 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 49 min |
| Jun 30, 4:05 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll | 25 min |
| Jun 30, 4:06 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene, Webster | 24 min |
| Jun 30, 4:09 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 38 min |
| Jun 30, 4:09 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 51 min |
| Jun 30, 4:29 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 31 min |
| Jun 30, 4:31 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 25 min |
| Jun 30, 4:38 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 37 min |
| Jun 30, 4:43 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 47 min |
| Jun 30, 4:59 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Webster | 46 min |
| Jun 30, 5:02 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk | 29 min |
| Jun 30, 5:06 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 24 min |
| Jun 30, 5:10 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 35 min |
| Jun 30, 5:43 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene | 23 min |
| Jun 30, 5:44 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 31 min |
| Jun 30, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 47 min |
| Jun 30, 6:47 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Polk, Story | 43 min |
| Jun 30, 6:50 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 25 min |
| Jun 30, 7:03 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Marshall, Tama | 57 min |
| Jun 30, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 40 min |
| Jun 30, 7:24 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 36 min |
| Jun 30, 7:34 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 41 min |
| Jun 30, 7:54 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 35 min |
| Jun 30, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 46 min |
| Jun 30, 8:45 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Guthrie, Madison | 30 min |
| Jun 30, 9:04 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 41 min |
| Jun 30, 9:08 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Boone, Dallas, Greene, Guthrie, Madison | 28 min |
| Jun 30, 9:11 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Marion, Polk, Warren | 34 min |
| Jun 30, 9:58 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Polk, Warren | 47 min |
| Jul 4, 10:22 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 23 min |
| Jul 4, 10:36 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 39 min |
| Jul 4, 11:07 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 38 min |
| Jul 4, 1:03 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 42 min |
| Jul 4, 5:35 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 40 min |
| Jul 4, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 28 min |
| Jul 4, 6:46 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 29 min |
| Jul 4, 7:50 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas, Webster | 25 min |
| Jul 4, 9:10 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 50 min |
| Jul 4, 9:45 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Pottawattamie | 45 min |
| Jul 4, 9:59 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 47 min |
| Jul 10, 11:01 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 29 min |
| Jul 10, 11:07 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 38 min |
| Jul 10, 11:44 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 46 min |
| Jul 10, 12:31 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas | 44 min |
| Jul 13, 12:05 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 40 min |
| Jul 13, 12:30 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 45 min |
| Jul 13, 1:08 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Kossuth, Pocahontas, Webster | 52 min |
| Jul 13, 3:05 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 55 min |
| Jul 13, 3:57 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 48 min |
| Jul 13, 4:07 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Louisa, Muscatine, Washington | 32 min |
| Jul 13, 4:22 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 53 min |
| Jul 13, 4:38 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 52 min |
| Jul 13, 4:51 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 39 min |
| Jul 13, 4:58 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 62 min |
| Jul 13, 4:58 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 62 min |
| Jul 13, 5:21 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 39 min |
| Jul 13, 5:29 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 61 min |
| Jul 13, 5:29 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk, Washington | 29 min |
| Jul 13, 5:31 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 59 min |
| Jul 13, 5:37 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 38 min |
| Jul 13, 5:58 PM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 47 min |
| Jul 13, 6:01 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 44 min |
| Jul 13, 6:15 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Dubuque, Jackson | 60 min |
| Jul 19, 4:05 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 25 min |
| Jul 19, 4:18 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 42 min |
| Jul 19, 4:50 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Jones | 25 min |
| Jul 19, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 20 min |
| Jul 19, 8:06 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 39 min |
| Jul 25, 4:39 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 51 min |
| Jul 25, 5:43 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 21 min |
| Jul 25, 5:44 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 46 min |
| Jul 25, 6:05 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 40 min |
| Jul 25, 6:18 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 42 min |
| Jul 25, 6:48 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 41 min |
| Jul 25, 7:02 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 28 min |
| Jul 25, 7:37 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hancock, Wright | 38 min |
| Jul 25, 7:54 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster, Wright | 29 min |
| Jul 25, 8:34 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 26 min |
| Aug 1, 4:29 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 46 min |
| Aug 1, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 27 min |
| Aug 1, 5:26 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 49 min |
| Aug 1, 6:09 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 51 min |
| Aug 1, 6:19 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 41 min |
| Aug 1, 6:40 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene, Guthrie | 50 min |
| Aug 1, 6:53 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story, Webster | 52 min |
| Aug 1, 6:59 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin | 46 min |
| Aug 1, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Greene, Guthrie | 50 min |
| Aug 1, 8:16 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Jasper, Polk, Story | 44 min |
| Aug 5, 1:54 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 51 min |
| Aug 5, 2:25 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 50 min |
| Aug 5, 2:41 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 49 min |
| Aug 5, 3:06 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Osceola, Plymouth | 39 min |
| Aug 5, 3:20 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 25 min |
| Aug 5, 3:33 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, Ida | 57 min |
| Aug 5, 3:36 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 54 min |
| Aug 5, 3:53 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Palo Alto, Pocahontas, Sac | 67 min |
| Aug 5, 4:24 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Hamilton, Hancock, Humboldt, Kossuth, Webster and 1 more | 66 min |
| Aug 5, 9:36 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin, Wright | 39 min |
| Aug 5, 5:07 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 38 min |
| Aug 5, 5:42 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 48 min |
| Aug 5, 6:10 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 50 min |
| Aug 5, 6:45 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 45 min |
| Aug 5, 9:17 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 43 min |
| Aug 5, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 57 min |
| Aug 5, 10:20 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 55 min |
| Aug 5, 10:40 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 53 min |
| Aug 5, 11:33 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Sac | 42 min |
| Aug 6, 6:10 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 35 min |
| Aug 6, 6:40 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 50 min |
| Aug 6, 10:11 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson | 37 min |
| Aug 7, 3:45 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 45 min |
| Aug 7, 2:43 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 47 min |
| Aug 7, 3:53 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 33 min |
| Aug 24, 4:48 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 42 min |
| Aug 24, 5:20 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 40 min |
| Aug 24, 6:11 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 49 min |
| Aug 24, 6:58 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 47 min |
| Aug 24, 7:02 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 58 min |
| Aug 26, 10:19 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida | 41 min |
| Aug 26, 9:44 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 31 min |
| Aug 26, 9:49 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 26 min |
| Aug 26, 10:40 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 35 min |
| Aug 27, 2:24 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 36 min |
| Aug 27, 2:51 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Sioux | 39 min |
| Aug 27, 3:27 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien | 33 min |
| Aug 27, 3:30 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 30 min |
| Aug 27, 3:51 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 24 min |
| Aug 27, 3:57 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 18 min |
| Aug 27, 4:09 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 20 min |
| Aug 27, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 45 min |
| Aug 27, 5:14 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 46 min |
| Aug 28, 3:48 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 42 min |
| Aug 28, 4:35 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 40 min |
| Aug 28, 5:11 AM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 49 min |
| Aug 28, 5:50 AM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 40 min |
| Aug 28, 6:19 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay | 41 min |
| Aug 28, 6:21 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 54 min |
| Aug 28, 7:08 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas, Wright | 45 min |
| Aug 28, 7:44 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Humboldt, Kossuth, Winnebago and 2 more | 46 min |
| Aug 28, 8:07 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Worth | 38 min |
| Aug 28, 8:27 AM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 48 min |
| Aug 28, 8:44 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin | 16 min |
| Aug 28, 8:50 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 40 min |
| Aug 28, 9:19 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 26 min |
| Aug 28, 9:34 AM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 41 min |
| Aug 28, 10:08 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 33 min |
| Aug 28, 10:16 AM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 14 min |
| Aug 28, 11:34 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Hamilton, Story | 41 min |
| Aug 28, 12:15 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Webster, Wright | 30 min |
| Aug 28, 12:39 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 36 min |
| Aug 28, 12:47 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Hancock, Wright | 43 min |
| Aug 28, 1:03 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 42 min |
| Aug 28, 1:38 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Franklin, Hamilton, Hardin, Story, Webster and 1 more | 52 min |
| Aug 28, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 41 min |
| Aug 28, 4:38 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 52 min |
| Aug 28, 4:50 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion, Monroe, Warren, Wayne | 40 min |
| Aug 28, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Poweshiek | 42 min |
| Aug 28, 5:14 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Washington | 61 min |
| Aug 28, 5:17 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 43 min |
| Aug 28, 5:30 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 45 min |
| Aug 28, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 58 min |
| Aug 28, 5:51 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Van Buren, Washington | 39 min |
| Aug 28, 5:59 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Louisa, Muscatine, Washington | 61 min |
| Aug 28, 6:18 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Louisa, Washington | 42 min |
| Aug 28, 6:37 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Linn | 38 min |
| Aug 28, 6:41 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 64 min |
| Aug 28, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 47 min |
| Aug 28, 7:00 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 60 min |
| Aug 28, 8:20 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 40 min |
| Aug 28, 8:26 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 49 min |
| Aug 31, 3:48 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 42 min |
| Aug 31, 4:25 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 50 min |
| Aug 31, 4:55 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 39 min |
| Aug 31, 10:09 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 51 min |
| Aug 31, 10:55 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 50 min |
| Sep 1, 1:01 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 22 min |
| Sep 1, 1:10 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 35 min |
| Sep 1, 1:12 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 29 min |
| Sep 1, 1:28 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 47 min |
| Sep 1, 5:36 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 24 min |
| Sep 1, 5:45 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union, Warren | 29 min |
| Sep 1, 5:58 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 32 min |
| Sep 1, 6:19 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 41 min |
| Sep 1, 6:30 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 45 min |
| Sep 1, 6:57 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison, Union | 48 min |
| Sep 1, 7:24 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison, Polk, Warren | 51 min |
| Sep 1, 6:08 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk | 52 min |
| Sep 1, 7:07 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 38 min |
| Sep 1, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Story | 46 min |
| Sep 1, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 54 min |
| Sep 1, 7:39 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 36 min |
| Sep 1, 7:51 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk, Story | 39 min |
| Sep 1, 7:55 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 50 min |
| Sep 1, 8:14 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk | 46 min |
| Sep 1, 8:16 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 14 min |
| Sep 1, 8:23 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 37 min |
| Sep 1, 8:29 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 46 min |
| Sep 1, 8:50 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 40 min |
| Sep 1, 9:05 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Washington | 40 min |
| Sep 1, 9:08 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Washington | 52 min |
| Sep 1, 9:08 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 52 min |
| Sep 1, 9:22 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson | 38 min |
| Sep 1, 9:56 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 34 min |
| Sep 1, 10:26 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Montgomery, Page | 34 min |
| Sep 2, 3:01 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 44 min |
| Sep 3, 6:21 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 39 min |
| Sep 4, 2:21 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 14 min |
| Sep 4, 7:55 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 53 min |
| Sep 17, 3:02 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Humboldt, Kossuth, Wright | 43 min |
| Sep 18, 11:47 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Louisa, Muscatine, Scott, Washington | 58 min |
| Sep 18, 12:32 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 58 min |
| Sep 18, 1:23 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 39 min |
| Sep 18, 2:12 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 48 min |
| Sep 18, 2:59 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 46 min |
| Sep 18, 3:22 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 38 min |
| Sep 18, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 40 min |
| Sep 18, 4:49 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 41 min |
| Sep 19, 8:49 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 25 min |
| Sep 19, 8:49 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 12 min |
| Sep 20, 3:32 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 43 min |
| Sep 20, 3:59 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 46 min |
| Sep 20, 4:56 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 34 min |
| Sep 20, 5:02 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 28 min |
| Sep 20, 5:13 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 47 min |
| Sep 20, 5:26 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 49 min |
| Sep 20, 5:41 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 34 min |
| Sep 20, 5:43 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Pocahontas, Sac | 47 min |
| Sep 20, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 26 min |
| Sep 20, 5:50 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Ida | 25 min |
| Sep 20, 5:52 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago, Worth | 38 min |
| Sep 20, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Hancock, Humboldt, Kossuth, Pocahontas, Webster and 1 more | 50 min |
| Sep 20, 6:28 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Kossuth, Winnebago, Worth | 47 min |
| Sep 20, 6:41 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Hamilton, Webster, Wright | 34 min |
| Sep 20, 7:14 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 31 min |
| Sep 20, 8:13 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Mitchell | 47 min |
| Sep 20, 8:24 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 36 min |
| Sep 20, 8:33 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 42 min |
| Sep 20, 8:49 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 26 min |
| Sep 25, 12:48 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 42 min |
| Sep 25, 1:17 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Washington | 43 min |
| Sep 25, 1:28 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Linn and 1 more | 62 min |
| Sep 25, 2:27 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 63 min |
| Oct 3, 9:40 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 50 min |
| Oct 8, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Dallas, Greene, Guthrie | 48 min |
| Oct 8, 6:14 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 46 min |
| Oct 8, 6:35 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 40 min |
| Oct 8, 7:11 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 34 min |
| Oct 8, 9:54 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 21 min |
| Oct 8, 10:29 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 46 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County40
- Webster County34
- Wright County34
- Calhoun County33
- Dallas County32
- Story County32
- Polk County32
- Pocahontas County32
- Harrison County32
- Mills County27
- Fremont County26
- Hamilton County26
- Kossuth County26
- Boone County25
- Humboldt County25
- Hancock County24
- Adair County23
- Franklin County23
- Clay County23
- Greene County22
- Guthrie County22
- Shelby County21
- Carroll County21
- Madison County21
- Cerro Gordo County20
- Winnebago County20
- Montgomery County19
- Dickinson County19
- Mahaska County19
- Page County18
- Washington County18
- Marshall County17
- Jasper County17
- Cass County16
- Palo Alto County16
- Worth County16
- O'Brien County16
- Clinton County16
- Warren County16
- Delaware County15
59 more counties
- Cherokee County14
- Tama County14
- Keokuk County14
- Hardin County13
- Union County13
- Buena Vista County13
- Jackson County13
- Scott County13
- Sac County13
- Jones County13
- Linn County13
- Adams County12
- Taylor County12
- Ringgold County12
- Butler County12
- Johnson County12
- Cedar County12
- Dubuque County12
- Decatur County12
- Wapello County12
- Crawford County12
- Wayne County12
- Henry County12
- Buchanan County12
- Plymouth County12
- Audubon County11
- Osceola County11
- Floyd County11
- Grundy County11
- Sioux County11
- Marion County11
- Jefferson County11
- Mitchell County10
- Howard County10
- Monona County10
- Iowa County10
- Benton County10
- Allamakee County9
- Monroe County9
- Poweshiek County9
- Lucas County9
- Louisa County9
- Winneshiek County8
- Lyon County8
- Clarke County8
- Davis County8
- Woodbury County7
- Appanoose County7
- Lee County7
- Des Moines County7
- Chickasaw County6
- Ida County6
- Muscatine County6
- Clayton County6
- Van Buren County6
- Fayette County5
- Emmet County5
- Black Hawk County4
- Bremer County1
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. Rebuilt daily.