Alert archive / Iowa / Mesoscale Discussions / 2023
Mesoscale Discussions in Iowa, May 2023
19 mesoscale discussions in May 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in May 2023. Tap one for its archive.
- Mesoscale Discussions
- 19
- Busiest day
- May 7, 20237 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 |
|---|---|---|---|---|
| May 6, 1:42 AM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Monona, Sac and 1 more | 2 hr |
| May 6, 3:20 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 12 more | 2 hr |
| May 6, 8:12 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren and 1 more | 93 min |
| May 6, 11:34 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Louisa, Van Buren, Washington | 86 min |
| May 7, 1:37 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Van Buren | 113 min |
| May 7, 4:51 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Carroll, Cass, Crawford, Guthrie and 7 more | 2 hr |
| May 7, 2:10 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 41 more | 2 hr |
| May 7, 5:35 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Iowa, Jackson and 14 more | 85 min |
| May 7, 6:02 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Harrison, Mills, Montgomery and 3 more | 88 min |
| May 7, 9:00 PM CDT | Mesoscale Discussion | SPC | Adams, Clarke, Decatur, Fremont, Lucas, Madison and 6 more | 2 hr |
| May 8, 2:32 PM CDT | Mesoscale Discussion | SPC | Buchanan, Chickasaw, Fayette, Howard, Winneshiek | 88 min |
| May 8, 3:51 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 21 more | 2 hr |
| May 12, 12:17 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Pottawattamie, Woodbury | 118 min |
| May 12, 6:00 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Pottawattamie | 90 min |
| May 13, 12:01 PM CDT | Mesoscale Discussion | SPC | Appanoose, Audubon, Benton, Black Hawk, Boone, Buena Vista and 57 more | 119 min |
| May 13, 3:31 PM CDT | Mesoscale Discussion | SPC | Appanoose, Boone, Buena Vista, Calhoun, Carroll, Dallas and 18 more | 119 min |
| May 13, 6:24 PM CDT | Mesoscale Discussion | SPC | Jasper, Lucas, Mahaska, Marion, Monroe, Wapello | 66 min |
| May 18, 2:18 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Butler, Chickasaw, Clayton and 5 more | 117 min |
| May 30, 2:12 PM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Cass, Crawford, Fremont, Harrison and 5 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Harrison County7
- Fremont County7
- Van Buren County7
- Crawford County6
- Lucas County6
- Mahaska County6
- Montgomery County6
- Wapello County6
- Henry County6
- Carroll County6
- Mills County6
- Pottawattamie County6
- Monona County5
- Marion County5
- Monroe County5
- Page County5
- Des Moines County5
- Jefferson County5
- Lee County5
- Louisa County5
- Washington County5
- Sac County4
- Woodbury County4
- Adams County4
- Appanoose County4
- Clarke County4
- Davis County4
- Decatur County4
- Taylor County4
- Warren County4
- Wayne County4
- Audubon County4
- Cass County4
- Guthrie County4
- Greene County4
- Jasper County4
- Keokuk County4
- Madison County4
- Cherokee County3
- Ida County3
55 more counties
- Ringgold County3
- Union County3
- Shelby County3
- Boone County3
- Dallas County3
- Iowa County3
- Johnson County3
- Polk County3
- Poweshiek County3
- Buena Vista County3
- Calhoun County3
- Pocahontas County3
- Webster County3
- Adair County2
- Marshall County2
- Story County2
- Tama County2
- Muscatine County2
- Chickasaw County2
- Fayette County2
- Howard County2
- Winneshiek County2
- Clay County2
- Dickinson County2
- Emmet County2
- Hamilton County2
- Hancock County2
- Humboldt County2
- Kossuth County2
- Lyon County2
- O'Brien County2
- Osceola County2
- Palo Alto County2
- Plymouth County2
- Sioux County2
- Wright County2
- Black Hawk County2
- Butler County2
- Cedar County1
- Clinton County1
- Jackson County1
- Jones County1
- Linn County1
- Scott County1
- Buchanan County1
- Winnebago County1
- Benton County1
- Franklin County1
- Grundy County1
- Hardin County1
- Allamakee County1
- Bremer County1
- Clayton County1
- Floyd County1
- Mitchell 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.