Alert archive / Iowa / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Iowa, 1994
337 severe thunderstorm warnings in 1994. 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 1994. Tap one for its archive.
- Severe Thunderstorm Warnings
- 337
- Busiest month
- June101 severe thunderstorm warnings
- Busiest day
- April 15, 199439 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 14, 8:16 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 59 min |
| Apr 14, 8:29 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 31 min |
| Apr 14, 8:34 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 41 min |
| Apr 14, 8:41 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 64 min |
| Apr 14, 8:41 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 34 min |
| Apr 14, 9:04 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 41 min |
| Apr 14, 9:12 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 33 min |
| Apr 14, 9:39 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 36 min |
| Apr 14, 9:40 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 35 min |
| Apr 14, 9:44 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Union | 31 min |
| Apr 14, 9:47 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 43 min |
| Apr 14, 9:55 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 35 min |
| Apr 14, 10:08 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 52 min |
| Apr 14, 10:24 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 51 min |
| Apr 14, 10:26 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 34 min |
| Apr 14, 10:27 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 48 min |
| Apr 14, 10:27 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 33 min |
| Apr 14, 10:45 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 45 min |
| Apr 14, 10:51 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 24 min |
| Apr 14, 10:55 PM CDT | Severe Thunderstorm Warning | DMX | Story | 35 min |
| Apr 14, 11:04 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 26 min |
| Apr 14, 11:10 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 35 min |
| Apr 14, 11:23 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 19 min |
| Apr 14, 11:39 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 25 min |
| Apr 14, 11:47 PM CDT | Severe Thunderstorm Warning | DMX | Van Buren | 28 min |
| Apr 15, 12:09 AM CDT | Severe Thunderstorm Warning | DMX | Linn | 36 min |
| Apr 15, 12:09 AM CDT | Severe Thunderstorm Warning | DVN | Henry | 36 min |
| Apr 15, 12:10 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 21 min |
| Apr 15, 12:15 AM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 29 min |
| Apr 15, 12:16 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 29 min |
| Apr 15, 12:22 AM CDT | Severe Thunderstorm Warning | DVN | Delaware | 38 min |
| Apr 15, 12:33 AM CDT | Severe Thunderstorm Warning | DVN | Cedar | 42 min |
| Apr 15, 12:40 AM CDT | Severe Thunderstorm Warning | DVN | Louisa | 50 min |
| Apr 15, 12:49 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 41 min |
| Apr 15, 1:00 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 30 min |
| Apr 15, 1:00 AM CDT | Severe Thunderstorm Warning | DVN | Muscatine | 30 min |
| Apr 15, 1:29 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 46 min |
| Apr 15, 2:15 AM CDT | Severe Thunderstorm Warning | DVN | Clinton | 60 min |
| Apr 15, 2:46 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 59 min |
| Apr 24, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 32 min |
| Apr 24, 9:06 PM CDT | Severe Thunderstorm Warning | DMX | Winneshiek | 54 min |
| Apr 25, 9:38 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 52 min |
| Apr 25, 10:35 AM CDT | Severe Thunderstorm Warning | DMX | Chickasaw | 36 min |
| Apr 25, 3:54 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 36 min |
| Apr 25, 4:41 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 34 min |
| Apr 25, 4:44 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 46 min |
| Apr 25, 5:39 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 51 min |
| Apr 25, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 44 min |
| Apr 25, 6:26 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 49 min |
| Apr 25, 6:31 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 44 min |
| Apr 25, 6:33 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 57 min |
| Apr 25, 6:40 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 50 min |
| Apr 25, 7:56 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 34 min |
| Apr 25, 8:03 PM CDT | Severe Thunderstorm Warning | DMX | Adams | 27 min |
| Apr 25, 8:13 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 32 min |
| Apr 25, 8:23 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Union | 37 min |
| Apr 25, 8:33 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 27 min |
| Apr 25, 8:41 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 49 min |
| Apr 25, 8:50 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 25 min |
| Apr 25, 8:54 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 36 min |
| Apr 25, 9:07 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Dallas, Polk, Warren | 38 min |
| Apr 25, 9:09 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 23 min |
| Apr 25, 9:27 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 48 min |
| Apr 26, 3:25 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams | 35 min |
| Apr 26, 4:01 AM CDT | Severe Thunderstorm Warning | DMX | Adair | 44 min |
| Apr 26, 5:53 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Story | 37 min |
| May 4, 3:21 PM CDT | Severe Thunderstorm Warning | DMX | Clay | 39 min |
| May 4, 3:27 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 36 min |
| May 4, 3:57 PM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 48 min |
| May 4, 5:19 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 33 min |
| May 4, 6:31 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 29 min |
| May 5, 8:59 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 36 min |
| May 23, 2:39 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 66 min |
| May 23, 3:54 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 35 min |
| May 23, 7:11 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 23 min |
| May 24, 4:32 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 28 min |
| May 24, 4:40 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 30 min |
| May 24, 5:22 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 38 min |
| May 24, 5:48 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 27 min |
| May 25, 3:24 PM CDT | Severe Thunderstorm Warning | DVN | Louisa | 66 min |
| May 30, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 31 min |
| May 30, 7:58 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 32 min |
| May 30, 9:00 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Floyd | 30 min |
| May 30, 9:32 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 58 min |
| May 30, 10:03 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 57 min |
| May 30, 10:03 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 25 min |
| Jun 5, 4:46 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster | 29 min |
| Jun 5, 5:22 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Wright | 38 min |
| Jun 6, 4:30 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 45 min |
| Jun 6, 4:33 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 57 min |
| Jun 6, 5:14 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 24 min |
| Jun 6, 5:23 PM CDT | Severe Thunderstorm Warning | DMX | Clay | 37 min |
| Jun 6, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 44 min |
| Jun 6, 5:37 PM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 53 min |
| Jun 6, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 56 min |
| Jun 6, 6:35 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 52 min |
| Jun 6, 7:39 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 29 min |
| Jun 6, 7:52 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 38 min |
| Jun 6, 8:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 43 min |
| Jun 6, 8:15 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 60 min |
| Jun 6, 8:32 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 43 min |
| Jun 6, 8:41 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 29 min |
| Jun 6, 9:01 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 40 min |
| Jun 6, 9:17 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 30 min |
| Jun 6, 9:25 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 31 min |
| Jun 7, 4:02 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 28 min |
| Jun 7, 4:41 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 49 min |
| Jun 7, 4:52 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 15 min |
| Jun 7, 5:20 PM CDT | Severe Thunderstorm Warning | DMX | Johnson | 30 min |
| Jun 7, 5:57 PM CDT | Severe Thunderstorm Warning | DMX | Johnson | 33 min |
| Jun 7, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 44 min |
| Jun 7, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 47 min |
| Jun 10, 2:00 PM CDT | Severe Thunderstorm Warning | FSD | Monona, Woodbury | 30 min |
| Jun 10, 2:30 PM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 30 min |
| Jun 10, 2:39 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 25 min |
| Jun 10, 2:40 PM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 35 min |
| Jun 10, 3:17 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 28 min |
| Jun 10, 4:17 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 43 min |
| Jun 10, 6:31 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 44 min |
| Jun 10, 6:45 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 30 min |
| Jun 10, 7:16 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 29 min |
| Jun 10, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 39 min |
| Jun 10, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 33 min |
| Jun 10, 8:29 PM CDT | Severe Thunderstorm Warning | DMX | Adams | 31 min |
| Jun 10, 8:39 PM CDT | Severe Thunderstorm Warning | DMX | Union | 36 min |
| Jun 11, 6:31 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 59 min |
| Jun 11, 5:22 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 38 min |
| Jun 11, 5:51 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 39 min |
| Jun 11, 6:21 PM CDT | Severe Thunderstorm Warning | DMX | Van Buren | 39 min |
| Jun 11, 6:32 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 17 min |
| Jun 11, 6:32 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 43 min |
| Jun 11, 7:02 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Lee | 58 min |
| Jun 11, 7:20 PM CDT | Severe Thunderstorm Warning | DMX | Lucas | 25 min |
| Jun 12, 5:39 AM CDT | Severe Thunderstorm Warning | FSD | Monona | 26 min |
| Jun 12, 3:46 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 29 min |
| Jun 12, 6:31 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 59 min |
| Jun 12, 6:44 PM CDT | Severe Thunderstorm Warning | DMX | Dickinson | 31 min |
| Jun 12, 6:51 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 69 min |
| Jun 12, 7:15 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 30 min |
| Jun 12, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Dickinson | 30 min |
| Jun 12, 8:01 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 29 min |
| Jun 12, 8:15 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Palo Alto | 30 min |
| Jun 12, 8:18 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 27 min |
| Jun 12, 8:23 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 52 min |
| Jun 12, 8:23 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 37 min |
| Jun 12, 8:46 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 29 min |
| Jun 12, 8:55 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth | 35 min |
| Jun 12, 9:01 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 29 min |
| Jun 12, 9:05 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 40 min |
| Jun 12, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 46 min |
| Jun 12, 9:26 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 34 min |
| Jun 12, 9:37 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 38 min |
| Jun 12, 9:46 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 29 min |
| Jun 12, 9:56 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 34 min |
| Jun 12, 10:14 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 31 min |
| Jun 12, 10:58 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 47 min |
| Jun 12, 11:01 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 29 min |
| Jun 12, 11:31 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 29 min |
| Jun 12, 11:38 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 22 min |
| Jun 12, 11:53 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 37 min |
| Jun 13, 12:10 AM CDT | Severe Thunderstorm Warning | DMX | Adams | 14 min |
| Jun 13, 12:54 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 21 min |
| Jun 13, 1:03 AM CDT | Severe Thunderstorm Warning | DMX | Marion | 28 min |
| Jun 13, 1:03 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 28 min |
| Jun 13, 1:19 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 26 min |
| Jun 17, 5:59 PM CDT | Severe Thunderstorm Warning | DMX | Dickinson, Emmet | 31 min |
| Jun 17, 6:19 PM CDT | Severe Thunderstorm Warning | DMX | Clay | 26 min |
| Jun 17, 7:07 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 38 min |
| Jun 17, 7:52 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 35 min |
| Jun 17, 8:28 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 32 min |
| Jun 17, 9:18 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 27 min |
| Jun 18, 7:28 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 62 min |
| Jun 18, 7:28 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 47 min |
| Jun 19, 2:51 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 39 min |
| Jun 19, 4:32 PM CDT | Severe Thunderstorm Warning | DMX | Story | 28 min |
| Jun 19, 5:44 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 31 min |
| Jun 19, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 38 min |
| Jun 19, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 36 min |
| Jun 19, 8:15 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 60 min |
| Jun 20, 4:59 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 21 min |
| Jun 20, 5:42 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 33 min |
| Jun 20, 6:19 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 26 min |
| Jun 20, 6:47 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 28 min |
| Jun 20, 6:47 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 28 min |
| Jun 25, 6:23 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 37 min |
| Jun 25, 6:51 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Page | 54 min |
| Jun 26, 2:26 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 19 min |
| Jun 30, 10:20 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 55 min |
| Jun 30, 10:23 PM CDT | Severe Thunderstorm Warning | DMX | Dickinson | 52 min |
| Jun 30, 10:57 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 48 min |
| Jun 30, 10:57 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 29 min |
| Jun 30, 11:03 PM CDT | Severe Thunderstorm Warning | DMX | Clay | 42 min |
| Jun 30, 11:12 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 63 min |
| Jul 1, 12:17 AM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 21 min |
| Jul 1, 12:25 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 65 min |
| Jul 1, 1:26 AM CDT | Severe Thunderstorm Warning | FSD | Monona, Woodbury | 52 min |
| Jul 1, 1:26 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 64 min |
| Jul 1, 5:28 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 48 min |
| Jul 1, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 28 min |
| Jul 1, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 35 min |
| Jul 1, 6:17 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 28 min |
| Jul 1, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 27 min |
| Jul 1, 9:13 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery | 47 min |
| Jul 1, 9:25 PM CDT | Severe Thunderstorm Warning | OAX | Page | 50 min |
| Jul 1, 9:36 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 24 min |
| Jul 4, 12:45 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 30 min |
| Jul 5, 1:01 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 44 min |
| Jul 5, 1:05 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 40 min |
| Jul 5, 1:24 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 36 min |
| Jul 5, 1:24 AM CDT | Severe Thunderstorm Warning | FSD | Monona | 36 min |
| Jul 5, 1:32 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 28 min |
| Jul 5, 1:39 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 36 min |
| Jul 5, 1:40 AM CDT | Severe Thunderstorm Warning | DMX | Buena Vista, Sac | 50 min |
| Jul 5, 1:40 AM CDT | Severe Thunderstorm Warning | DMX | Clay | 50 min |
| Jul 5, 2:19 AM CDT | Severe Thunderstorm Warning | DMX | Clay, Dickinson | 26 min |
| Jul 5, 2:32 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 28 min |
| Jul 5, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 46 min |
| Jul 5, 9:41 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 64 min |
| Jul 5, 10:43 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 47 min |
| Jul 5, 11:21 PM CDT | Severe Thunderstorm Warning | FSD | Monona, Woodbury | 54 min |
| Jul 6, 12:14 AM CDT | Severe Thunderstorm Warning | FSD | Monona | 46 min |
| Jul 6, 12:24 AM CDT | Severe Thunderstorm Warning | OAX | Mills | 66 min |
| Jul 6, 12:24 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 66 min |
| Jul 6, 7:57 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 33 min |
| Jul 6, 3:16 PM CDT | Severe Thunderstorm Warning | DMX | Floyd, Mitchell | 41 min |
| Jul 7, 6:48 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 27 min |
| Jul 7, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 29 min |
| Jul 7, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 39 min |
| Jul 7, 8:00 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 30 min |
| Jul 12, 1:34 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 56 min |
| Jul 12, 4:28 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 32 min |
| Jul 12, 6:19 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 56 min |
| Jul 13, 9:07 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 53 min |
| Jul 18, 6:46 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 37 min |
| Jul 18, 10:43 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 37 min |
| Jul 19, 12:16 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 44 min |
| Jul 19, 1:25 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 29 min |
| Jul 19, 2:50 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 25 min |
| Jul 19, 3:06 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 54 min |
| Jul 19, 3:35 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 55 min |
| Jul 19, 6:24 PM CDT | Severe Thunderstorm Warning | DMX | Chickasaw | 66 min |
| Jul 19, 9:38 PM CDT | Severe Thunderstorm Warning | DMX | Winneshiek | 52 min |
| Jul 19, 10:10 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 35 min |
| Jul 19, 10:15 PM CDT | Severe Thunderstorm Warning | DMX | Allamakee | 30 min |
| Jul 20, 1:18 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 42 min |
| Jul 20, 1:29 AM CDT | Severe Thunderstorm Warning | DMX | Johnson, Linn | 31 min |
| Jul 20, 1:34 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 41 min |
| Jul 20, 1:52 AM CDT | Severe Thunderstorm Warning | DMX | Johnson | 23 min |
| Jul 20, 2:15 AM CDT | Severe Thunderstorm Warning | DVN | Cedar | 60 min |
| Jul 31, 7:55 AM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 35 min |
| Jul 31, 4:54 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 36 min |
| Jul 31, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 34 min |
| Jul 31, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 29 min |
| Jul 31, 6:02 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 28 min |
| Jul 31, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell, Worth | 44 min |
| Jul 31, 6:38 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 52 min |
| Jul 31, 6:41 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 34 min |
| Jul 31, 7:06 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 29 min |
| Jul 31, 7:35 PM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 25 min |
| Jul 31, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 33 min |
| Jul 31, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 46 min |
| Jul 31, 10:19 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 37 min |
| Jul 31, 11:54 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 36 min |
| Aug 7, 8:49 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 56 min |
| Aug 7, 9:14 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 46 min |
| Aug 7, 9:26 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 64 min |
| Aug 7, 9:49 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 56 min |
| Aug 7, 10:01 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 29 min |
| Aug 7, 10:20 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 40 min |
| Aug 7, 10:26 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 51 min |
| Aug 7, 10:33 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 35 min |
| Aug 7, 10:35 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 25 min |
| Aug 7, 11:51 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 24 min |
| Aug 8, 12:08 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 42 min |
| Aug 8, 12:33 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 57 min |
| Aug 8, 2:08 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 52 min |
| Aug 17, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 45 min |
| Aug 17, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Howard | 53 min |
| Aug 17, 9:52 PM CDT | Severe Thunderstorm Warning | DMX | Howard, Winneshiek | 38 min |
| Aug 18, 6:44 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 46 min |
| Aug 18, 7:28 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 32 min |
| Aug 18, 8:23 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 37 min |
| Aug 19, 12:40 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 50 min |
| Aug 19, 12:47 PM CDT | Severe Thunderstorm Warning | DMX | Floyd | 32 min |
| Aug 19, 1:09 PM CDT | Severe Thunderstorm Warning | DMX | Chickasaw | 25 min |
| Aug 19, 1:25 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 30 min |
| Aug 19, 1:44 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 31 min |
| Aug 19, 1:48 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 42 min |
| Aug 19, 2:28 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 32 min |
| Aug 19, 3:01 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 29 min |
| Aug 19, 3:32 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 28 min |
| Aug 19, 3:52 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 38 min |
| Aug 19, 4:20 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 25 min |
| Aug 19, 4:24 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 36 min |
| Aug 19, 4:57 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 33 min |
| Aug 19, 5:50 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 40 min |
| Aug 19, 6:16 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 44 min |
| Aug 25, 12:45 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 45 min |
| Aug 25, 1:17 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 41 min |
| Aug 25, 1:17 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 58 min |
| Aug 25, 2:56 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 49 min |
| Aug 25, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Greene, Webster | 30 min |
| Aug 25, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 30 min |
| Aug 25, 7:43 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 32 min |
| Sep 20, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 31 min |
| Sep 20, 7:39 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 36 min |
| Sep 20, 8:00 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 30 min |
| Sep 21, 2:51 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 54 min |
| Sep 21, 3:14 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 31 min |
| Sep 21, 3:19 PM CDT | Severe Thunderstorm Warning | DMX | Story | 26 min |
| Sep 21, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 22 min |
| Sep 21, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Clay | 41 min |
| Sep 21, 3:51 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 54 min |
| Sep 21, 3:54 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 41 min |
| Sep 21, 4:07 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 38 min |
| Sep 21, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 40 min |
| Sep 21, 4:59 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 31 min |
| Sep 21, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 20 min |
| Sep 21, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Story | 45 min |
| Oct 6, 5:26 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 34 min |
| Oct 6, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 44 min |
| Oct 6, 5:46 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 29 min |
| Oct 6, 5:53 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 37 min |
| Oct 6, 6:04 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 26 min |
| Oct 6, 6:45 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 30 min |
| Oct 6, 6:56 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 34 min |
| Oct 6, 7:41 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 14 min |
| Oct 6, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 35 min |
| Oct 6, 9:42 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton | 33 min |
| Oct 6, 9:42 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison | 33 min |
| Oct 6, 9:52 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 38 min |
| Oct 6, 9:59 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 31 min |
| Oct 6, 10:09 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 33 min |
| Oct 6, 10:09 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 51 min |
| Oct 6, 10:12 PM CDT | Severe Thunderstorm Warning | DMX | Story | 33 min |
| Oct 6, 10:24 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Wright | 81 min |
| Oct 6, 10:35 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 25 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Woodbury County11
- Dubuque County10
- Plymouth County10
- Clayton County9
- Jackson County9
- Clay County9
- O'Brien County9
- Monona County9
- Mills County8
- Cass County8
- Grundy County8
- Black Hawk County8
- Cherokee County8
- Lyon County8
- Winnebago County8
- Pottawattamie County7
- Story County7
- Mitchell County7
- Sioux County6
- Osceola County6
- Hamilton County6
- Buena Vista County6
- Boone County6
- Crawford County6
- Montgomery County5
- Harrison County5
- Adair County5
- Dallas County5
- Clinton County5
- Worth County5
- Humboldt County5
- Webster County5
- Audubon County5
- Emmet County5
- Dickinson County5
- Taylor County4
- Marshall County4
- Madison County4
- Polk County4
- Delaware County4
52 more counties
- Linn County4
- Lee County4
- Scott County4
- Adams County4
- Decatur County4
- Wright County4
- Kossuth County4
- Benton County4
- Johnson County4
- Greene County4
- Shelby County4
- Hancock County4
- Union County3
- Guthrie County3
- Buchanan County3
- Henry County3
- Jones County3
- Cedar County3
- Des Moines County3
- Carroll County3
- Winneshiek County3
- Chickasaw County3
- Ringgold County3
- Cerro Gordo County3
- Franklin County3
- Pocahontas County3
- Calhoun County3
- Butler County3
- Floyd County3
- Bremer County3
- Fayette County3
- Ida County3
- Jasper County2
- Van Buren County2
- Louisa County2
- Clarke County2
- Hardin County2
- Fremont County2
- Appanoose County2
- Palo Alto County2
- Poweshiek County2
- Page County2
- Sac County2
- Howard County2
- Tama County1
- Muscatine County1
- Warren County1
- Davis County1
- Lucas County1
- Marion County1
- Mahaska County1
- Allamakee County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19931995
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.