Alert archive / Iowa / Severe Thunderstorm Warnings / 2023
Severe Thunderstorm Warnings in Iowa, April 2023
117 severe thunderstorm warnings in April 2023. 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 April 2023. Tap one for its archive.
- Severe Thunderstorm Warnings
- 117
- Busiest day
- April 20, 202336 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 4, 7:38 AM CDT | Severe Thunderstorm Warning | DVN | Iowa, Jefferson, Johnson, Keokuk, Washington | 37 min |
| Apr 4, 7:43 AM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Washington | 32 min |
| Apr 4, 8:11 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Louisa, Muscatine, Washington | 49 min |
| Apr 4, 8:12 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 33 min |
| Apr 4, 8:29 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Johnson, Jones, Linn | 31 min |
| Apr 4, 8:52 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 38 min |
| Apr 4, 9:24 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 51 min |
| Apr 4, 9:54 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 34 min |
| Apr 4, 10:06 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 24 min |
| Apr 4, 10:26 AM CDT | Severe Thunderstorm Warning | DVN | Clinton | 64 min |
| Apr 4, 10:43 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 32 min |
| Apr 4, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Boone, Dallas, Guthrie, Polk | 41 min |
| Apr 4, 4:45 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Ringgold, Taylor, Union | 45 min |
| Apr 4, 4:52 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 38 min |
| Apr 4, 4:55 PM CDT | Severe Thunderstorm Warning | OAX | Page | 8 min |
| Apr 4, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Boone, Dallas, Greene, Guthrie, Madison and 1 more | 49 min |
| Apr 4, 5:35 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Clarke, Decatur, Madison, Ringgold and 2 more | 40 min |
| Apr 4, 5:46 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 44 min |
| Apr 4, 6:08 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin | 52 min |
| Apr 4, 6:10 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Marion, Polk, Union and 1 more | 50 min |
| Apr 4, 6:17 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 12 min |
| Apr 4, 6:21 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Worth | 39 min |
| Apr 4, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Jasper, Marshall, Polk, Story | 45 min |
| Apr 4, 6:35 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 40 min |
| Apr 4, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Dallas, Guthrie, Madison and 1 more | 47 min |
| Apr 4, 6:44 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 61 min |
| Apr 4, 6:54 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Poweshiek, Tama | 51 min |
| Apr 4, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 33 min |
| Apr 4, 7:00 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 7 min |
| Apr 4, 7:01 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Ringgold, Taylor, Union | 44 min |
| Apr 4, 7:24 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Poweshiek, Tama | 66 min |
| Apr 4, 7:27 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Boone, Dallas, Madison, Polk, Warren | 48 min |
| Apr 4, 7:42 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Madison, Ringgold, Taylor, Union | 63 min |
| Apr 4, 8:13 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story, Warren | 47 min |
| Apr 4, 8:21 PM CDT | Severe Thunderstorm Warning | DVN | Benton | 39 min |
| Apr 4, 8:48 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Madison, Marion, Polk, Warren | 42 min |
| Apr 4, 8:49 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 26 min |
| Apr 4, 8:55 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 50 min |
| Apr 4, 8:56 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Jasper, Marshall, Tama | 49 min |
| Apr 4, 9:43 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 17 min |
| Apr 4, 9:45 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 25 min |
| Apr 4, 10:29 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 46 min |
| Apr 4, 10:51 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 39 min |
| Apr 4, 11:09 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 51 min |
| Apr 4, 11:15 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 45 min |
| Apr 5, 1:10 AM CDT | Severe Thunderstorm Warning | DVN | Johnson, Washington | 35 min |
| Apr 5, 1:43 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Jones | 47 min |
| Apr 5, 1:54 AM CDT | Severe Thunderstorm Warning | DVN | Johnson, Louisa, Muscatine, Washington | 36 min |
| Apr 5, 3:23 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Louisa, Van Buren, Washington | 37 min |
| Apr 14, 6:07 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 53 min |
| Apr 14, 6:58 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 62 min |
| Apr 14, 7:27 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 63 min |
| Apr 14, 8:01 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 59 min |
| Apr 14, 8:32 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 58 min |
| Apr 14, 8:36 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 54 min |
| Apr 14, 9:08 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 52 min |
| Apr 14, 9:14 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 61 min |
| Apr 14, 9:51 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Page, Pottawattamie | 54 min |
| Apr 15, 5:08 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 37 min |
| Apr 19, 1:04 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 41 min |
| Apr 19, 5:23 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Warren | 28 min |
| Apr 19, 9:36 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 24 min |
| Apr 19, 9:41 AM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 34 min |
| Apr 19, 9:54 AM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jones | 36 min |
| Apr 19, 10:08 AM CDT | Severe Thunderstorm Warning | DVN | Delaware, Jones, Linn | 37 min |
| Apr 19, 10:25 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 11 min |
| Apr 19, 10:30 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 30 min |
| Apr 19, 10:53 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 37 min |
| Apr 19, 11:24 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 36 min |
| Apr 19, 11:25 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 35 min |
| Apr 19, 11:26 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 19 min |
| Apr 19, 5:06 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 54 min |
| Apr 19, 5:09 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 66 min |
| Apr 19, 5:50 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 40 min |
| Apr 19, 5:52 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 68 min |
| Apr 19, 6:11 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 14 min |
| Apr 19, 6:17 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 43 min |
| Apr 19, 6:27 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 63 min |
| Apr 19, 6:46 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 29 min |
| Apr 19, 6:50 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 55 min |
| Apr 19, 6:50 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 25 min |
| Apr 19, 7:11 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 49 min |
| Apr 19, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 48 min |
| Apr 19, 7:19 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 41 min |
| Apr 19, 7:20 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 40 min |
| Apr 19, 7:24 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 51 min |
| Apr 19, 7:28 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 31 min |
| Apr 19, 7:37 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 53 min |
| Apr 19, 7:40 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 32 min |
| Apr 19, 7:47 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 43 min |
| Apr 19, 7:56 PM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 49 min |
| Apr 19, 7:57 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 33 min |
| Apr 19, 8:01 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, O'Brien, Osceola | 17 min |
| Apr 19, 8:09 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 36 min |
| Apr 19, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Greene, Guthrie | 15 min |
| Apr 19, 8:17 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 28 min |
| Apr 19, 8:27 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 23 min |
| Apr 19, 8:30 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 30 min |
| Apr 19, 8:31 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Pottawattamie | 59 min |
| Apr 19, 8:39 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 28 min |
| Apr 19, 8:41 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 25 min |
| Apr 19, 8:42 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 48 min |
| Apr 19, 9:04 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 41 min |
| Apr 19, 9:11 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 34 min |
| Apr 19, 9:19 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk | 26 min |
| Apr 19, 9:26 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 26 min |
| Apr 19, 9:44 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 46 min |
| Apr 19, 10:10 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Marshall, Polk, Story | 50 min |
| Apr 19, 10:29 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 46 min |
| Apr 19, 10:41 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Polk, Warren | 49 min |
| Apr 19, 10:57 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story | 48 min |
| Apr 19, 11:08 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Marshall, Polk, Story | 37 min |
| Apr 19, 11:41 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Marshall, Poweshiek, Tama | 58 min |
| Apr 20, 1:33 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 27 min |
| Apr 20, 2:32 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 28 min |
| Apr 20, 1:57 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 48 min |
| Apr 20, 3:10 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 35 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Polk County15
- Pottawattamie County13
- Jasper County10
- Mills County10
- Jones County9
- Clinton County9
- Adair County9
- Marshall County9
- Fremont County9
- Linn County8
- Delaware County8
- Madison County8
- Johnson County7
- Dallas County7
- Union County7
- Story County7
- Dubuque County7
- Washington County6
- Benton County6
- Buchanan County6
- Jackson County6
- Boone County6
- Adams County6
- Marion County6
- Warren County6
- Harrison County6
- Sioux County6
- Scott County5
- Guthrie County5
- Ringgold County5
- Taylor County5
- Plymouth County5
- Cedar County4
- Muscatine County4
- Page County4
- Lee County4
- Montgomery County4
- Tama County4
- Shelby County4
- Iowa County3
37 more counties
- Louisa County3
- Grundy County3
- Hardin County3
- Cass County3
- Poweshiek County3
- Clayton County3
- Audubon County3
- Monona County3
- Crawford County3
- Sac County3
- Jefferson County2
- Keokuk County2
- Greene County2
- Clarke County2
- Butler County2
- Franklin County2
- Worth County2
- Mahaska County2
- Fayette County2
- Henry County2
- Ida County2
- O'Brien County2
- Lyon County2
- Decatur County1
- Hamilton County1
- Lucas County1
- Cerro Gordo County1
- Hancock County1
- Chickasaw County1
- Floyd County1
- Van Buren County1
- Dickinson County1
- Osceola County1
- Carroll County1
- Woodbury County1
- Cherokee County1
- Des Moines County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.