Alert archive / Iowa / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Iowa, 2021
366 severe thunderstorm warnings in 2021. 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 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 366
- Busiest month
- August122 severe thunderstorm warnings
- Busiest day
- June 19, 202136 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 |
|---|---|---|---|---|
| Mar 10, 5:18 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Union | 24 min |
| Mar 10, 5:34 PM CST | Severe Thunderstorm Warning | DMX | Grundy, Marshall | 24 min |
| Mar 10, 5:36 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas | 39 min |
| Apr 5, 1:28 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 32 min |
| Apr 5, 9:27 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 33 min |
| Apr 5, 9:48 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 27 min |
| Apr 5, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola | 53 min |
| May 2, 6:55 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 50 min |
| May 2, 7:21 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 39 min |
| May 2, 7:42 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 48 min |
| May 2, 8:07 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 28 min |
| May 2, 9:38 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 28 min |
| May 15, 4:50 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 40 min |
| May 25, 6:46 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 44 min |
| May 25, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie | 40 min |
| May 25, 11:53 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Polk, Warren | 31 min |
| Jun 11, 7:10 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 35 min |
| Jun 11, 7:34 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 26 min |
| Jun 11, 7:50 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 40 min |
| Jun 11, 2:33 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 20 min |
| Jun 16, 6:31 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 29 min |
| Jun 16, 8:38 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 37 min |
| Jun 16, 8:57 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 63 min |
| Jun 16, 9:00 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida | 45 min |
| Jun 16, 9:39 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 51 min |
| Jun 16, 9:47 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 28 min |
| Jun 16, 10:04 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 9 min |
| Jun 16, 10:23 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Greene, Guthrie | 53 min |
| Jun 18, 9:56 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Marion, Warren | 49 min |
| Jun 18, 10:06 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union | 39 min |
| Jun 18, 10:17 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa, Washington | 58 min |
| Jun 18, 10:39 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Monroe, Wayne | 51 min |
| Jun 18, 10:43 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Union, Warren | 47 min |
| Jun 18, 10:45 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Monroe, Wapello | 45 min |
| Jun 18, 10:54 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 51 min |
| Jun 18, 11:03 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 27 min |
| Jun 18, 11:05 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 25 min |
| Jun 18, 11:07 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 38 min |
| Jun 18, 11:10 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 50 min |
| Jun 18, 11:14 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison | 46 min |
| Jun 18, 11:19 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 26 min |
| Jun 18, 11:21 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson | 39 min |
| Jun 18, 11:22 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 53 min |
| Jun 18, 11:25 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 50 min |
| Jun 18, 11:27 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 38 min |
| Jun 18, 11:29 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 46 min |
| Jun 18, 11:32 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 28 min |
| Jun 18, 11:37 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Union | 53 min |
| Jun 18, 11:43 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 47 min |
| Jun 18, 11:47 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Washington | 29 min |
| Jun 18, 11:54 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Warren | 36 min |
| Jun 18, 11:55 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 50 min |
| Jun 18, 11:56 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 38 min |
| Jun 18, 11:59 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Clarke, Madison, Ringgold, Union | 46 min |
| Jun 19, 12:02 AM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 43 min |
| Jun 19, 12:12 AM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Van Buren, Washington | 48 min |
| Jun 19, 12:13 AM CDT | Severe Thunderstorm Warning | DMX | Adams | 26 min |
| Jun 19, 12:14 AM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 31 min |
| Jun 19, 12:25 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion, Warren | 35 min |
| Jun 19, 12:27 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 27 min |
| Jun 19, 12:29 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 46 min |
| Jun 19, 12:44 AM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Monroe | 31 min |
| Jun 19, 1:08 AM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 49 min |
| Jun 19, 4:33 AM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 57 min |
| Jun 20, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union | 55 min |
| Jun 20, 4:47 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 43 min |
| Jun 20, 4:53 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 52 min |
| Jun 20, 4:54 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler, Franklin | 51 min |
| Jun 20, 5:33 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek | 42 min |
| Jun 20, 5:35 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 40 min |
| Jun 20, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion | 50 min |
| Jun 20, 5:59 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 46 min |
| Jun 20, 6:13 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 62 min |
| Jun 20, 6:15 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 30 min |
| Jun 20, 6:20 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 55 min |
| Jun 20, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 47 min |
| Jun 20, 7:08 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk | 38 min |
| Jun 20, 7:08 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jones, Linn | 52 min |
| Jun 20, 7:17 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Tama | 43 min |
| Jun 20, 7:37 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 38 min |
| Jun 20, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 20 min |
| Jun 20, 8:04 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 41 min |
| Jun 20, 8:18 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 42 min |
| Jun 20, 8:19 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Jones | 41 min |
| Jun 20, 8:53 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 67 min |
| Jun 22, 4:59 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 46 min |
| Jun 22, 5:22 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 38 min |
| Jun 22, 5:27 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 48 min |
| Jun 22, 5:30 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 45 min |
| Jun 22, 5:50 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 40 min |
| Jun 22, 5:58 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 47 min |
| Jun 22, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Carroll, Greene, Webster | 51 min |
| Jun 22, 6:09 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 36 min |
| Jun 22, 6:24 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 36 min |
| Jun 22, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 45 min |
| Jun 22, 6:33 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 42 min |
| Jun 22, 6:49 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 41 min |
| Jun 22, 6:52 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 24 min |
| Jun 22, 6:57 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk | 33 min |
| Jun 22, 7:15 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 45 min |
| Jun 22, 7:56 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 49 min |
| Jun 24, 1:43 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 47 min |
| Jun 24, 2:15 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Monona, Pottawattamie | 60 min |
| Jun 24, 2:51 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery | 39 min |
| Jun 24, 2:54 AM CDT | Severe Thunderstorm Warning | OAX | Mills | 36 min |
| Jun 24, 3:17 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 58 min |
| Jun 24, 6:43 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 47 min |
| Jun 24, 7:03 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 42 min |
| Jun 24, 7:23 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 40 min |
| Jun 24, 8:04 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 26 min |
| Jun 24, 11:20 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 25 min |
| Jun 24, 11:34 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 41 min |
| Jun 24, 11:44 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 46 min |
| Jul 5, 6:37 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 38 min |
| Jul 5, 7:16 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 44 min |
| Jul 5, 7:57 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola | 33 min |
| Jul 5, 8:24 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 66 min |
| Jul 8, 11:45 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 45 min |
| Jul 8, 11:50 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 40 min |
| Jul 9, 12:29 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 46 min |
| Jul 9, 12:44 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 46 min |
| Jul 9, 12:46 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 44 min |
| Jul 9, 1:14 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 31 min |
| Jul 9, 2:15 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 45 min |
| Jul 9, 8:09 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Union | 28 min |
| Jul 9, 12:28 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Webster | 47 min |
| Jul 9, 1:01 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Polk, Story | 44 min |
| Jul 9, 1:27 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Madison, Polk, Story | 63 min |
| Jul 9, 2:06 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Madison, Marion, Polk, Warren | 54 min |
| Jul 9, 5:16 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Washington | 29 min |
| Jul 9, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Washington | 23 min |
| Jul 9, 6:23 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 37 min |
| Jul 9, 6:50 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 25 min |
| Jul 9, 7:08 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 37 min |
| Jul 9, 7:19 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 41 min |
| Jul 9, 7:29 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Louisa, Washington | 31 min |
| Jul 9, 7:51 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Washington | 24 min |
| Jul 9, 8:25 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Lee, Van Buren | 35 min |
| Jul 9, 8:57 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 33 min |
| Jul 9, 9:16 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 44 min |
| Jul 9, 9:31 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 15 min |
| Jul 9, 9:38 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 52 min |
| Jul 9, 10:21 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 39 min |
| Jul 9, 10:52 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 38 min |
| Jul 9, 11:02 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 29 min |
| Jul 9, 11:19 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 41 min |
| Jul 9, 11:30 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Montgomery, Pottawattamie, Shelby | 45 min |
| Jul 9, 11:38 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 52 min |
| Jul 9, 11:41 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 49 min |
| Jul 9, 11:55 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 65 min |
| Jul 9, 11:56 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 49 min |
| Jul 10, 12:13 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 47 min |
| Jul 10, 12:26 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 19 min |
| Jul 10, 12:40 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 50 min |
| Jul 10, 12:41 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Ringgold, Taylor, Union | 64 min |
| Jul 10, 12:42 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 18 min |
| Jul 10, 12:44 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 61 min |
| Jul 10, 1:56 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 64 min |
| Jul 10, 2:18 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 42 min |
| Jul 14, 8:08 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 52 min |
| Jul 14, 8:39 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Grundy, Hancock, Hardin and 1 more | 66 min |
| Jul 14, 8:43 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 62 min |
| Jul 14, 8:49 AM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story, Tama | 56 min |
| Jul 14, 9:06 AM CDT | Severe Thunderstorm Warning | ARX | Floyd | 39 min |
| Jul 14, 11:40 AM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson | 35 min |
| Jul 14, 12:35 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 40 min |
| Jul 14, 5:18 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler | 42 min |
| Jul 14, 5:18 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin | 42 min |
| Jul 14, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 41 min |
| Jul 14, 6:04 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 41 min |
| Jul 14, 6:32 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 43 min |
| Jul 14, 6:42 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 48 min |
| Jul 14, 6:56 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 49 min |
| Jul 14, 7:23 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 67 min |
| Jul 14, 7:29 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 14 min |
| Jul 14, 7:37 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 38 min |
| Jul 14, 7:40 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 35 min |
| Jul 14, 8:11 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 19 min |
| Jul 14, 8:14 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 46 min |
| Jul 14, 8:42 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 43 min |
| Jul 14, 8:45 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 45 min |
| Jul 14, 9:08 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 32 min |
| Jul 14, 10:14 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn | 46 min |
| Jul 14, 10:41 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 49 min |
| Jul 14, 10:52 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones, Scott | 38 min |
| Jul 14, 11:10 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 50 min |
| Jul 28, 12:50 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 40 min |
| Jul 30, 8:12 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 33 min |
| Jul 30, 8:42 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Page, Pottawattamie | 33 min |
| Jul 30, 9:03 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Page | 42 min |
| Jul 30, 9:13 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 32 min |
| Jul 30, 9:38 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union | 37 min |
| Jul 30, 9:39 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 51 min |
| Jul 30, 9:52 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 34 min |
| Aug 5, 8:57 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 48 min |
| Aug 5, 9:31 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 44 min |
| Aug 5, 10:04 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 41 min |
| Aug 6, 12:10 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 35 min |
| Aug 6, 1:06 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 39 min |
| Aug 6, 1:36 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 24 min |
| Aug 7, 8:41 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 49 min |
| Aug 7, 8:50 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 40 min |
| Aug 7, 9:24 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 51 min |
| Aug 7, 10:38 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 52 min |
| Aug 7, 11:25 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 36 min |
| Aug 8, 4:10 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 50 min |
| Aug 8, 4:50 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 55 min |
| Aug 9, 12:29 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Webster | 46 min |
| Aug 10, 12:50 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 25 min |
| Aug 10, 1:48 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler | 42 min |
| Aug 10, 2:10 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Winneshiek | 50 min |
| Aug 10, 2:14 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 46 min |
| Aug 10, 2:43 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette, Winneshiek | 62 min |
| Aug 10, 2:55 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 50 min |
| Aug 10, 2:57 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 18 min |
| Aug 10, 3:00 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Poweshiek, Tama | 60 min |
| Aug 10, 3:07 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 23 min |
| Aug 10, 3:23 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 52 min |
| Aug 10, 3:25 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 50 min |
| Aug 10, 3:29 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 31 min |
| Aug 10, 3:49 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Iowa | 41 min |
| Aug 10, 3:56 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 64 min |
| Aug 10, 4:04 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones, Linn | 56 min |
| Aug 10, 4:28 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 36 min |
| Aug 10, 4:38 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Jackson, Jones, Linn | 52 min |
| Aug 10, 5:00 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Jones | 45 min |
| Aug 11, 5:56 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 19 min |
| Aug 11, 6:10 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 20 min |
| Aug 11, 6:24 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 22 min |
| Aug 11, 6:38 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 37 min |
| Aug 11, 4:26 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 49 min |
| Aug 11, 5:11 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones | 49 min |
| Aug 12, 7:26 AM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 33 min |
| Aug 20, 6:13 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 32 min |
| Aug 20, 6:31 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 29 min |
| Aug 20, 9:05 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 55 min |
| Aug 20, 9:46 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 44 min |
| Aug 24, 9:43 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 47 min |
| Aug 24, 10:44 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 30 min |
| Aug 24, 12:26 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 49 min |
| Aug 24, 12:51 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Wright | 54 min |
| Aug 24, 1:18 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 57 min |
| Aug 24, 1:43 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 47 min |
| Aug 24, 1:44 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 31 min |
| Aug 24, 1:53 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 67 min |
| Aug 24, 2:15 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette | 60 min |
| Aug 24, 2:21 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 39 min |
| Aug 24, 2:49 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 56 min |
| Aug 24, 2:59 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 61 min |
| Aug 24, 3:03 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Dubuque | 42 min |
| Aug 24, 3:28 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Marshall, Story | 47 min |
| Aug 24, 3:42 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 48 min |
| Aug 24, 4:03 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Hardin, Marshall, Poweshiek, Tama | 57 min |
| Aug 24, 4:17 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 58 min |
| Aug 24, 5:01 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 59 min |
| Aug 24, 5:05 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 40 min |
| Aug 24, 5:23 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 37 min |
| Aug 24, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Linn | 38 min |
| Aug 25, 12:43 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 47 min |
| Aug 25, 1:00 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 24 min |
| Aug 25, 1:16 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 44 min |
| Aug 25, 1:25 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 50 min |
| Aug 25, 1:53 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 37 min |
| Aug 25, 1:58 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 32 min |
| Aug 26, 6:26 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 34 min |
| Aug 26, 6:51 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Pottawattamie | 24 min |
| Aug 26, 7:19 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 26 min |
| Aug 26, 7:42 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 33 min |
| Aug 26, 8:18 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Greene, Sac | 42 min |
| Aug 26, 2:16 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wapello | 44 min |
| Aug 26, 7:02 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll | 28 min |
| Aug 26, 8:47 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 58 min |
| Aug 26, 9:21 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk | 39 min |
| Aug 26, 9:58 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 47 min |
| Aug 26, 10:30 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 45 min |
| Aug 26, 10:43 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 47 min |
| Aug 26, 10:57 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Washington | 48 min |
| Aug 26, 11:39 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Washington | 31 min |
| Aug 26, 11:42 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 33 min |
| Aug 27, 12:17 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 28 min |
| Aug 27, 12:34 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 41 min |
| Aug 27, 1:09 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux | 51 min |
| Aug 27, 1:25 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 50 min |
| Aug 27, 1:52 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola | 68 min |
| Aug 27, 2:00 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 60 min |
| Aug 27, 4:23 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 52 min |
| Aug 27, 4:58 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock | 32 min |
| Aug 27, 6:52 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Fayette, Winneshiek | 38 min |
| Aug 27, 7:10 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 65 min |
| Aug 27, 7:29 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Winneshiek | 46 min |
| Aug 27, 8:03 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 42 min |
| Aug 27, 8:09 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 25 min |
| Aug 27, 8:15 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 30 min |
| Aug 28, 4:23 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 37 min |
| Aug 28, 5:00 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 45 min |
| Aug 28, 5:26 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 34 min |
| Aug 28, 5:29 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 31 min |
| Aug 28, 5:34 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 17 min |
| Aug 28, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 46 min |
| Aug 28, 6:53 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 52 min |
| Aug 28, 7:23 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 52 min |
| Aug 28, 8:52 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola, Sioux | 23 min |
| Aug 28, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Lyon, O'Brien, Osceola, Sioux | 47 min |
| Aug 30, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 46 min |
| Aug 30, 9:49 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 26 min |
| Aug 30, 9:58 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Sac | 62 min |
| Aug 30, 10:05 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 10 min |
| Aug 30, 10:49 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 26 min |
| Aug 30, 10:50 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 55 min |
| Aug 30, 10:58 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford, Greene, Guthrie | 62 min |
| Aug 30, 11:29 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Marshall, Polk, Story | 46 min |
| Aug 30, 11:50 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 40 min |
| Aug 30, 11:54 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Madison, Marion, Polk, Warren | 36 min |
| Aug 31, 12:07 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 38 min |
| Aug 31, 12:15 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 26 min |
| Aug 31, 1:35 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 25 min |
| Sep 13, 10:18 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 27 min |
| Sep 17, 12:29 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 46 min |
| Sep 17, 12:36 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 54 min |
| Sep 17, 1:11 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth and 2 more | 49 min |
| Sep 17, 1:23 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 67 min |
| Sep 20, 3:38 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union, Warren | 52 min |
| Sep 20, 4:23 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion, Warren | 52 min |
| Sep 20, 4:25 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 50 min |
| Sep 20, 4:57 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Monroe, Warren | 48 min |
| Sep 20, 6:34 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wayne | 41 min |
| Sep 20, 6:52 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 38 min |
| Sep 20, 7:10 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 35 min |
| Sep 20, 7:13 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Washington | 47 min |
| Dec 15, 3:23 PM CST | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 67 min |
| Dec 15, 3:35 PM CST | Severe Thunderstorm Warning | OAX | Fremont, Harrison, Mills, Pottawattamie | 70 min |
| Dec 15, 3:41 PM CST | Severe Thunderstorm Warning | OAX | Harrison, Monona | 64 min |
| Dec 15, 3:55 PM CST | Severe Thunderstorm Warning | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 80 min |
| Dec 15, 4:05 PM CST | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Plymouth, Woodbury | 55 min |
| Dec 15, 4:13 PM CST | Severe Thunderstorm Warning | DMX | Adair, Adams, Audubon, Cass, Guthrie, Ringgold and 2 more | 77 min |
| Dec 15, 4:16 PM CST | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Sac | 74 min |
| Dec 15, 4:26 PM CST | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 34 min |
| Dec 15, 4:51 PM CST | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 39 min |
| Dec 15, 4:56 PM CST | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, Ida | 46 min |
| Dec 15, 5:10 PM CST | Severe Thunderstorm Warning | DMX | Adair, Audubon, Boone, Dallas, Greene, Guthrie and 4 more | 80 min |
| Dec 15, 5:19 PM CST | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Carroll, Emmet, Greene, Humboldt and 5 more | 71 min |
| Dec 15, 5:22 PM CST | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Sac | 23 min |
| Dec 15, 5:22 PM CST | Severe Thunderstorm Warning | DMX | Adair, Adams, Clarke, Decatur, Madison, Ringgold and 3 more | 68 min |
| Dec 15, 5:29 PM CST | Severe Thunderstorm Warning | FSD | Dickinson | 46 min |
| Dec 15, 5:52 PM CST | Severe Thunderstorm Warning | DMX | Boone, Franklin, Hamilton, Hancock, Hardin, Humboldt and 6 more | 53 min |
| Dec 15, 6:13 PM CST | Severe Thunderstorm Warning | DMX | Appanoose, Clarke, Decatur, Lucas, Marion, Monroe and 2 more | 62 min |
| Dec 15, 6:24 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Dallas, Jasper, Lucas, Madison, Mahaska and 5 more | 66 min |
| Dec 15, 6:30 PM CST | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 6 more | 75 min |
| Dec 15, 6:37 PM CST | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 68 min |
| Dec 15, 6:47 PM CST | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story | 43 min |
| Dec 15, 7:09 PM CST | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Jasper, Lucas, Mahaska, Marion and 5 more | 66 min |
| Dec 15, 7:17 PM CST | Severe Thunderstorm Warning | DVN | Benton, Iowa | 58 min |
| Dec 15, 7:29 PM CST | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette, Winneshiek | 61 min |
| Dec 15, 7:31 PM CST | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Van Buren | 59 min |
| Dec 15, 7:33 PM CST | Severe Thunderstorm Warning | DVN | Buchanan | 57 min |
| Dec 15, 7:44 PM CST | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy, Tama | 27 min |
| Dec 15, 8:08 PM CST | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Johnson, Linn, Louisa, Washington | 67 min |
| Dec 15, 8:16 PM CST | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 74 min |
| Dec 15, 8:18 PM CST | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Van Buren | 57 min |
| Dec 15, 8:23 PM CST | Severe Thunderstorm Warning | DVN | Benton, Iowa | 37 min |
| Dec 15, 8:29 PM CST | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 31 min |
| Dec 15, 8:34 PM CST | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Van Buren | 26 min |
| Dec 15, 8:44 PM CST | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jones | 61 min |
| Dec 15, 8:50 PM CST | Severe Thunderstorm Warning | DVN | Cedar, Louisa, Muscatine | 55 min |
| Dec 15, 8:53 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 67 min |
| Dec 15, 9:12 PM CST | Severe Thunderstorm Warning | DVN | Clinton, Dubuque, Jackson, Scott | 63 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County27
- Lyon County26
- Harrison County22
- Clarke County21
- Mills County21
- Delaware County20
- Sioux County20
- Osceola County17
- Plymouth County17
- Lucas County16
- Monona County16
- Warren County16
- Buchanan County16
- Union County15
- Marion County15
- Madison County15
- Des Moines County14
- Washington County14
- Keokuk County14
- Dubuque County14
- Fremont County14
- Marshall County13
- Jasper County13
- Polk County13
- Cherokee County13
- Ida County13
- Carroll County13
- Henry County13
- Van Buren County13
- Linn County13
- Jackson County13
- O'Brien County12
- Adair County12
- Montgomery County12
- Lee County12
- Benton County12
- Woodbury County12
- Decatur County11
- Wayne County11
- Jefferson County11
59 more counties
- Black Hawk County11
- Boone County10
- Greene County10
- Monroe County10
- Ringgold County10
- Jones County10
- Tama County10
- Story County10
- Grundy County9
- Hardin County9
- Louisa County9
- Butler County9
- Poweshiek County9
- Iowa County9
- Page County9
- Cerro Gordo County9
- Franklin County8
- Dallas County8
- Clay County8
- Crawford County8
- Appanoose County8
- Davis County8
- Adams County8
- Bremer County8
- Dickinson County8
- Hancock County8
- Allamakee County8
- Clayton County8
- Fayette County7
- Guthrie County7
- Buena Vista County7
- Sac County7
- Audubon County7
- Mahaska County7
- Cass County7
- Clinton County7
- Shelby County7
- Hamilton County6
- Wright County6
- Calhoun County6
- Wapello County6
- Webster County6
- Johnson County5
- Cedar County5
- Chickasaw County5
- Winneshiek County5
- Winnebago County4
- Worth County4
- Floyd County4
- Taylor County3
- Kossuth County3
- Scott County3
- Emmet County3
- Palo Alto County3
- Mitchell County3
- Howard County2
- Humboldt County2
- Pocahontas County1
- Muscatine County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.