Alert archive / Iowa / Mesoscale Discussions / 2019
Mesoscale Discussions in Iowa, September 2019
24 mesoscale discussions 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in September 2019. Tap one for its archive.
- Mesoscale Discussions
- 24
- Busiest day
- September 12, 20194 mesoscale discussions
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 2, 6:37 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 12 more | 83 min |
| Sep 2, 11:39 PM CDT | Mesoscale Discussion | SPC | Allamakee | 2 hr |
| Sep 9, 2:49 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 58 more | 116 min |
| Sep 9, 6:07 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 7 more | 83 min |
| Sep 9, 7:49 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 11 more | 86 min |
| Sep 10, 11:31 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Sioux | 89 min |
| Sep 11, 2:09 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Emmet, Floyd, Hancock, Humboldt and 8 more | 96 min |
| Sep 12, 1:12 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 48 more | 2 hr |
| Sep 12, 2:02 PM CDT | Mesoscale Discussion | SPC | Decatur, Ringgold, Wayne | 118 min |
| Sep 12, 3:46 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Cerro Gordo, Chickasaw, Clayton, Fayette and 5 more | 119 min |
| Sep 12, 6:04 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Delaware, Des Moines, Dubuque, Jackson and 5 more | 116 min |
| Sep 18, 10:28 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 36 more | 2 hr |
| Sep 21, 1:33 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 15 more | 87 min |
| Sep 21, 7:54 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Cass, Clarke and 19 more | 2 hr |
| Sep 21, 10:32 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 118 min |
| Sep 24, 3:13 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Chickasaw and 17 more | 3 hr |
| Sep 24, 6:33 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 40 more | 117 min |
| Sep 24, 11:24 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Clarke, Madison, Montgomery, Page and 3 more | 66 min |
| Sep 27, 3:01 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Des Moines, Henry and 12 more | 119 min |
| Sep 27, 5:37 PM CDT | Mesoscale Discussion | SPC | Appanoose, Wayne | 2 hr |
| Sep 27, 6:21 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jefferson, Johnson and 6 more | 114 min |
| Sep 27, 7:37 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Iowa, Keokuk, Lucas, Mahaska and 4 more | 53 min |
| Sep 27, 9:18 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee, Van Buren | 117 min |
| Sep 30, 4:55 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, O'Brien | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Floyd County10
- Chickasaw County8
- Mitchell County8
- Cerro Gordo County8
- Emmet County8
- Worth County8
- Allamakee County7
- Bremer County7
- Butler County7
- Howard County7
- Winneshiek County7
- Hancock County7
- Humboldt County7
- Kossuth County7
- Palo Alto County7
- Pocahontas County7
- Winnebago County7
- Delaware County6
- Fayette County6
- Buena Vista County6
- Franklin County6
- Dickinson County6
- Black Hawk County5
- Buchanan County5
- Clayton County5
- Clinton County5
- Dubuque County5
- Jones County5
- Boone County5
- Calhoun County5
- Greene County5
- Hamilton County5
- Johnson County5
- Montgomery County5
- Sac County5
- Wright County5
- O'Brien County5
- Clay County5
- Linn County4
- Adair County4
59 more counties
- Adams County4
- Audubon County4
- Benton County4
- Cass County4
- Dallas County4
- Grundy County4
- Guthrie County4
- Hardin County4
- Keokuk County4
- Madison County4
- Mahaska County4
- Marion County4
- Polk County4
- Pottawattamie County4
- Shelby County4
- Story County4
- Union County4
- Webster County4
- Ida County4
- Cedar County4
- Muscatine County4
- Scott County4
- Des Moines County4
- Mills County4
- Jackson County3
- Carroll County3
- Clarke County3
- Crawford County3
- Iowa County3
- Jasper County3
- Marshall County3
- Tama County3
- Warren County3
- Osceola County3
- Washington County3
- Ringgold County3
- Wayne County3
- Louisa County3
- Cherokee County3
- Woodbury County3
- Fremont County3
- Page County3
- Appanoose County3
- Lee County3
- Van Buren County3
- Lucas County2
- Poweshiek County2
- Sioux County2
- Harrison County2
- Monona County2
- Plymouth County2
- Taylor County2
- Davis County2
- Henry County2
- Jefferson County2
- Monroe County2
- Wapello County2
- Lyon County1
- Decatur 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.