Alert archive / Iowa / Severe Thunderstorm Warnings / 2019
Severe Thunderstorm Warnings in Iowa, September 2019
101 severe thunderstorm warnings in September 2019. 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 September 2019. Tap one for its archive.
- Severe Thunderstorm Warnings
- 101
- Busiest day
- September 10, 201916 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 |
|---|---|---|---|---|
| Sep 3, 2:18 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 42 min |
| Sep 9, 3:24 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk, Warren | 37 min |
| Sep 9, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Guthrie, Madison | 41 min |
| Sep 9, 4:06 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie, Madison | 54 min |
| Sep 9, 4:39 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Polk, Story | 51 min |
| Sep 9, 4:41 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 24 min |
| Sep 9, 4:47 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 40 min |
| Sep 9, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 20 min |
| Sep 9, 5:20 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Marshall, Story | 40 min |
| Sep 9, 5:25 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Guthrie, Madison, Union | 37 min |
| Sep 9, 5:53 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hardin, Marshall, Tama | 52 min |
| Sep 9, 5:54 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie, Madison, Polk | 23 min |
| Sep 9, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler | 65 min |
| Sep 9, 6:45 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette | 60 min |
| Sep 9, 6:48 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 42 min |
| Sep 9, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Grundy, Hardin | 40 min |
| Sep 9, 7:10 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 50 min |
| Sep 9, 7:21 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 54 min |
| Sep 9, 7:27 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Winneshiek | 48 min |
| Sep 9, 7:33 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler, Franklin, Grundy | 42 min |
| Sep 9, 7:42 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Marshall, Tama | 37 min |
| Sep 9, 7:47 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 25 min |
| Sep 9, 8:03 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy, Tama | 57 min |
| Sep 9, 8:37 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story | 38 min |
| Sep 9, 8:57 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 48 min |
| Sep 9, 8:58 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 32 min |
| Sep 9, 9:30 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 30 min |
| Sep 10, 12:11 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Dubuque, Jackson, Johnson, Jones | 64 min |
| Sep 10, 1:20 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 27 min |
| Sep 10, 1:52 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 41 min |
| Sep 10, 3:57 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Warren | 30 min |
| Sep 10, 11:13 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 47 min |
| Sep 10, 11:59 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola, Sioux | 46 min |
| Sep 11, 12:44 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 46 min |
| Sep 11, 1:25 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien, Plymouth, Sioux | 65 min |
| Sep 11, 7:11 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 34 min |
| Sep 12, 1:08 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 19 min |
| Sep 12, 4:50 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 40 min |
| Sep 12, 5:04 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 17 min |
| Sep 12, 5:36 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 39 min |
| Sep 12, 6:16 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 27 min |
| Sep 12, 6:19 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn | 41 min |
| Sep 14, 9:44 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 31 min |
| Sep 14, 10:45 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 30 min |
| Sep 14, 10:56 AM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 23 min |
| Sep 14, 12:15 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 30 min |
| Sep 14, 12:18 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 27 min |
| Sep 14, 12:45 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 30 min |
| Sep 14, 12:46 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 29 min |
| Sep 14, 2:21 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 39 min |
| Sep 14, 2:53 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene | 22 min |
| Sep 14, 3:00 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 45 min |
| Sep 14, 3:16 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 44 min |
| Sep 14, 3:50 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 29 min |
| Sep 14, 4:10 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 35 min |
| Sep 14, 4:44 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 29 min |
| Sep 14, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 34 min |
| Sep 14, 5:59 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Story | 19 min |
| Sep 15, 12:11 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 18 min |
| Sep 15, 12:19 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Guthrie | 41 min |
| Sep 18, 2:40 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 50 min |
| Sep 18, 2:45 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 15 min |
| Sep 18, 4:40 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 35 min |
| Sep 18, 4:43 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 17 min |
| Sep 21, 4:34 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay | 26 min |
| Sep 21, 9:10 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 35 min |
| Sep 21, 9:32 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 28 min |
| Sep 21, 9:57 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 33 min |
| Sep 22, 12:51 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 39 min |
| Sep 24, 4:25 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Plymouth, Woodbury | 50 min |
| Sep 24, 4:48 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 42 min |
| Sep 24, 5:19 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Woodbury | 41 min |
| Sep 24, 5:26 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 53 min |
| Sep 24, 5:36 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 54 min |
| Sep 24, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 50 min |
| Sep 24, 6:26 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 34 min |
| Sep 24, 6:32 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, O'Brien, Plymouth | 43 min |
| Sep 24, 6:54 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 36 min |
| Sep 24, 6:55 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 35 min |
| Sep 24, 7:01 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 29 min |
| Sep 24, 7:14 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee | 46 min |
| Sep 24, 7:35 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 25 min |
| Sep 24, 7:47 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 43 min |
| Sep 24, 7:59 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 31 min |
| Sep 24, 8:08 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 10 min |
| Sep 24, 8:46 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 29 min |
| Sep 24, 8:47 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 43 min |
| Sep 24, 9:01 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 44 min |
| Sep 24, 9:53 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 21 min |
| Sep 24, 10:21 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 24 min |
| Sep 27, 5:10 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 26 min |
| Sep 27, 5:34 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 41 min |
| Sep 27, 5:51 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 39 min |
| Sep 27, 6:15 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 45 min |
| Sep 27, 6:20 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 40 min |
| Sep 27, 6:50 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 40 min |
| Sep 27, 6:53 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 52 min |
| Sep 27, 7:11 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Monroe, Wayne | 49 min |
| Sep 27, 7:27 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 48 min |
| Sep 27, 8:10 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 35 min |
| Sep 29, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 45 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County9
- Harrison County8
- Polk County7
- Guthrie County7
- Dallas County6
- Story County6
- Cass County6
- Grundy County6
- Buchanan County6
- Buena Vista County6
- Cherokee County6
- Audubon County6
- Madison County5
- Adair County5
- Boone County5
- Hamilton County5
- Marshall County5
- Black Hawk County5
- Webster County5
- Shelby County5
- Allamakee County4
- Hardin County4
- Butler County4
- Jackson County4
- Jones County4
- Sioux County4
- Monona County4
- Lee County4
- Adams County3
- Franklin County3
- Tama County3
- Bremer County3
- Clayton County3
- Dubuque County3
- Lyon County3
- Clay County3
- O'Brien County3
- Plymouth County3
- Linn County3
- Carroll County3
41 more counties
- Des Moines County3
- Wayne County3
- Appanoose County3
- Warren County2
- Winneshiek County2
- Benton County2
- Delaware County2
- Cedar County2
- Clinton County2
- Johnson County2
- Jasper County2
- Osceola County2
- Winnebago County2
- Greene County2
- Mahaska County2
- Ida County2
- Woodbury County2
- Sac County2
- Kossuth County2
- Calhoun County2
- Pocahontas County2
- Montgomery County1
- Page County1
- Taylor County1
- Union County1
- Chickasaw County1
- Fayette County1
- Dickinson County1
- Hancock County1
- Crawford County1
- Marion County1
- Poweshiek County1
- Emmet County1
- Palo Alto County1
- Wright County1
- Van Buren County1
- Louisa County1
- Decatur County1
- Monroe County1
- Davis County1
- Humboldt County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.