Alert archive / Iowa / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Iowa, June 2020
136 severe thunderstorm warnings in June 2020. 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 June 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 136
- Busiest day
- June 5, 202046 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 |
|---|---|---|---|---|
| Jun 2, 6:07 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 36 min |
| Jun 2, 6:14 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 46 min |
| Jun 2, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 43 min |
| Jun 2, 6:33 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 42 min |
| Jun 2, 6:55 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 80 min |
| Jun 2, 7:07 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 53 min |
| Jun 2, 7:13 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 27 min |
| Jun 2, 7:55 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 50 min |
| Jun 2, 9:17 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 28 min |
| Jun 2, 9:36 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 39 min |
| Jun 2, 9:47 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 21 min |
| Jun 3, 4:24 AM CDT | Severe Thunderstorm Warning | DMX | Dallas | 36 min |
| Jun 3, 4:39 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison | 51 min |
| Jun 3, 4:49 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 35 min |
| Jun 3, 5:29 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union, Warren | 46 min |
| Jun 3, 6:02 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Union | 43 min |
| Jun 3, 6:26 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 49 min |
| Jun 3, 6:40 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 35 min |
| Jun 3, 7:01 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 17 min |
| Jun 3, 7:05 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 55 min |
| Jun 4, 1:29 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 31 min |
| Jun 4, 4:27 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Pocahontas, Webster | 48 min |
| Jun 4, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin | 41 min |
| Jun 4, 4:41 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hardin | 34 min |
| Jun 4, 4:50 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 29 min |
| Jun 4, 5:00 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 45 min |
| Jun 4, 5:04 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 28 min |
| Jun 4, 6:35 PM CDT | Severe Thunderstorm Warning | DVN | Benton | 40 min |
| Jun 4, 6:56 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 34 min |
| Jun 4, 7:42 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Tama | 30 min |
| Jun 4, 7:48 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 27 min |
| Jun 4, 8:25 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 35 min |
| Jun 4, 8:34 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 27 min |
| Jun 4, 9:01 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Scott | 44 min |
| Jun 4, 9:11 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Muscatine, Scott | 49 min |
| Jun 4, 9:40 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 50 min |
| Jun 4, 9:56 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 49 min |
| Jun 4, 10:11 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 49 min |
| Jun 4, 10:43 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall | 47 min |
| Jun 4, 11:16 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 44 min |
| Jun 4, 11:20 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 40 min |
| Jun 4, 11:37 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 38 min |
| Jun 4, 11:50 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 40 min |
| Jun 4, 11:50 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 40 min |
| Jun 5, 12:08 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee | 52 min |
| Jun 5, 12:15 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 45 min |
| Jun 5, 12:30 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 45 min |
| Jun 5, 12:38 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 52 min |
| Jun 5, 12:55 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 50 min |
| Jun 5, 12:56 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 34 min |
| Jun 5, 1:12 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 48 min |
| Jun 5, 1:15 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 45 min |
| Jun 5, 1:20 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 40 min |
| Jun 5, 1:27 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 32 min |
| Jun 5, 1:27 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 48 min |
| Jun 5, 1:33 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Palo Alto, Pocahontas, Webster | 27 min |
| Jun 5, 1:38 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 37 min |
| Jun 5, 1:51 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee | 54 min |
| Jun 5, 2:02 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Humboldt, Kossuth, Palo Alto and 4 more | 43 min |
| Jun 5, 2:11 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 21 min |
| Jun 5, 2:42 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 48 min |
| Jun 5, 2:45 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Sac | 45 min |
| Jun 5, 2:45 AM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 45 min |
| Jun 5, 3:17 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Carroll, Greene, Webster | 43 min |
| Jun 5, 3:22 AM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 21 min |
| Jun 5, 3:34 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin | 41 min |
| Jun 5, 3:45 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie | 45 min |
| Jun 5, 4:12 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Guthrie, Madison, Polk, Story | 48 min |
| Jun 5, 4:35 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Warren | 40 min |
| Jun 5, 4:45 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Dallas, Jasper, Madison, Marion, Polk and 1 more | 45 min |
| Jun 5, 5:07 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Jasper, Lucas, Madison, Marion, Polk and 1 more | 38 min |
| Jun 5, 5:40 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Lucas, Mahaska, Marion, Monroe and 1 more | 50 min |
| Jun 5, 7:27 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Washington | 34 min |
| Jun 5, 7:43 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 32 min |
| Jun 5, 6:56 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 49 min |
| Jun 5, 7:31 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 29 min |
| Jun 9, 6:36 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 39 min |
| Jun 9, 6:49 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 41 min |
| Jun 9, 7:52 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola | 38 min |
| Jun 9, 8:09 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto, Pocahontas | 51 min |
| Jun 9, 8:25 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, Dickinson | 35 min |
| Jun 9, 8:25 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 35 min |
| Jun 9, 8:41 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 34 min |
| Jun 9, 8:50 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Pottawattamie | 40 min |
| Jun 9, 9:10 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page, Pottawattamie | 35 min |
| Jun 9, 9:23 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Cass | 52 min |
| Jun 9, 9:30 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 30 min |
| Jun 9, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 42 min |
| Jun 18, 1:56 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 20 min |
| Jun 18, 3:01 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 29 min |
| Jun 18, 4:54 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Crawford, Sac | 38 min |
| Jun 18, 6:19 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Pocahontas | 22 min |
| Jun 18, 6:55 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago, Worth | 50 min |
| Jun 21, 6:29 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 31 min |
| Jun 21, 6:32 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 28 min |
| Jun 21, 1:21 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 25 min |
| Jun 21, 2:41 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 34 min |
| Jun 21, 2:46 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 27 min |
| Jun 21, 2:53 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 37 min |
| Jun 21, 3:20 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 40 min |
| Jun 21, 3:45 PM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 45 min |
| Jun 21, 3:55 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 50 min |
| Jun 21, 4:22 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 38 min |
| Jun 21, 4:53 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 40 min |
| Jun 21, 4:55 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 50 min |
| Jun 21, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth | 23 min |
| Jun 21, 6:45 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 45 min |
| Jun 21, 7:05 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 40 min |
| Jun 21, 7:14 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 31 min |
| Jun 21, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 39 min |
| Jun 21, 7:38 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 52 min |
| Jun 21, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hardin | 35 min |
| Jun 21, 8:08 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler, Franklin | 22 min |
| Jun 21, 8:30 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler, Franklin, Hardin | 45 min |
| Jun 21, 8:56 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 34 min |
| Jun 21, 9:14 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler | 46 min |
| Jun 22, 1:18 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 42 min |
| Jun 22, 1:46 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek | 44 min |
| Jun 22, 2:59 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 46 min |
| Jun 22, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 63 min |
| Jun 24, 5:47 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 28 min |
| Jun 26, 3:34 AM CDT | Severe Thunderstorm Warning | ARX | Clayton | 28 min |
| Jun 26, 12:12 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 33 min |
| Jun 26, 12:29 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 46 min |
| Jun 26, 1:24 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Winneshiek | 36 min |
| Jun 26, 5:53 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 51 min |
| Jun 26, 6:21 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 24 min |
| Jun 26, 6:32 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 28 min |
| Jun 26, 6:56 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 20 min |
| Jun 26, 7:05 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 25 min |
| Jun 26, 7:07 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 33 min |
| Jun 26, 9:00 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 30 min |
| Jun 26, 9:08 PM CDT | Severe Thunderstorm Warning | DMX | Monroe | 19 min |
| Jun 28, 3:51 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 24 min |
| Jun 28, 4:19 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 41 min |
| Jun 28, 4:49 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 56 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dickinson County9
- Hardin County9
- Franklin County9
- Clay County9
- Kossuth County8
- Scott County8
- Osceola County7
- Palo Alto County7
- Humboldt County7
- Pocahontas County7
- Webster County7
- Buena Vista County7
- Pottawattamie County7
- Mills County7
- Emmet County6
- Hamilton County6
- O'Brien County6
- Worth County5
- Mitchell County5
- Crawford County5
- Madison County5
- Jasper County5
- Polk County5
- Wright County5
- Cherokee County5
- Calhoun County5
- Butler County5
- Montgomery County5
- Dallas County4
- Clarke County4
- Warren County4
- Buchanan County4
- Sac County4
- Henry County4
- Fremont County4
- Bremer County4
- Winnebago County3
- Cerro Gordo County3
- Union County3
- Clinton County3
49 more counties
- Muscatine County3
- Delaware County3
- Grundy County3
- Black Hawk County3
- Fayette County3
- Ida County3
- Carroll County3
- Boone County3
- Lucas County3
- Marion County3
- Des Moines County3
- Lyon County3
- Sioux County3
- Hancock County2
- Chickasaw County2
- Floyd County2
- Howard County2
- Monona County2
- Adair County2
- Ringgold County2
- Taylor County2
- Linn County2
- Benton County2
- Cedar County2
- Greene County2
- Guthrie County2
- Davis County2
- Monroe County2
- Wapello County2
- Woodbury County2
- Page County2
- Adams County2
- Cass County2
- Plymouth County2
- Clayton County2
- Winneshiek County2
- Van Buren County2
- Allamakee County1
- Tama County1
- Marshall County1
- Story County1
- Appanoose County1
- Mahaska County1
- Washington County1
- Harrison County1
- Jones County1
- Poweshiek County1
- Lee County1
- Jefferson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.