Alert archive / Iowa / Mesoscale Discussions / 2021
Mesoscale Discussions in Iowa, July 2021
28 mesoscale discussions in July 2021. 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 July 2021. Tap one for its archive.
- Mesoscale Discussions
- 28
- Busiest day
- July 14, 20216 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 |
|---|---|---|---|---|
| Jul 5, 5:44 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Hancock, Humboldt, Kossuth and 9 more | 2 hr |
| Jul 6, 1:06 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 114 min |
| Jul 6, 5:22 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Clay, Dickinson, Emmet and 14 more | 113 min |
| Jul 6, 8:00 PM CDT | Mesoscale Discussion | SPC | Howard, Mitchell, Winnebago, Winneshiek, Worth | 2 hr |
| Jul 7, 2:02 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Louisa | 88 min |
| Jul 9, 2:41 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Ida, Lyon and 6 more | 34 min |
| Jul 9, 1:28 PM CDT | Mesoscale Discussion | SPC | Boone, Dallas, Lucas, Polk, Warren | 2 hr |
| Jul 9, 5:40 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 15 more | 95 min |
| Jul 9, 9:12 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Harrison, Mills and 7 more | 2 hr |
| Jul 10, 1:20 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 115 min |
| Jul 10, 3:44 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 91 min |
| Jul 14, 7:02 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 43 more | 2 hr |
| Jul 14, 11:45 AM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Dubuque, Jackson, Jones | 2 hr |
| Jul 14, 1:40 PM CDT | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler and 38 more | 2 hr |
| Jul 14, 4:17 PM CDT | Mesoscale Discussion | SPC | Boone, Butler, Calhoun, Franklin, Greene, Grundy and 5 more | 58 min |
| Jul 14, 5:42 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Delaware, Dubuque, Jackson, Jones | 63 min |
| Jul 14, 5:47 PM CDT | Mesoscale Discussion | SPC | Audubon, Benton, Black Hawk, Boone, Bremer, Buchanan and 29 more | 118 min |
| Jul 14, 8:35 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Fayette, Grundy, Jasper and 5 more | 25 min |
| Jul 14, 9:15 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Clinton, Delaware, Dubuque, Jackson and 2 more | 90 min |
| Jul 14, 11:17 PM CDT | Mesoscale Discussion | SPC | Clinton, Muscatine, Scott | 58 min |
| Jul 24, 3:00 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Louisa, Muscatine, Scott | 2 hr |
| Jul 27, 7:33 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 11 more | 87 min |
| Jul 27, 10:35 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 5 more | 55 min |
| Jul 28, 12:50 AM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Clayton, Delaware, Dubuque, Jackson and 2 more | 55 min |
| Jul 28, 11:24 PM CDT | Mesoscale Discussion | SPC | Allamakee | 96 min |
| Jul 29, 2:19 PM CDT | Mesoscale Discussion | SPC | Davis, Lee, Van Buren | 116 min |
| Jul 30, 8:16 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Mills, Montgomery, Page and 2 more | 59 min |
| Jul 31, 1:06 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Chickasaw, Clayton, Fayette, Howard and 2 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allamakee County9
- Fayette County8
- Clayton County8
- Chickasaw County7
- Howard County7
- Mitchell County7
- Bremer County7
- Buchanan County7
- Delaware County7
- Grundy County7
- Winneshiek County6
- Black Hawk County6
- Butler County6
- Jones County6
- Dubuque County6
- Clay County5
- Hancock County5
- Humboldt County5
- Osceola County5
- Webster County5
- Wright County5
- Cerro Gordo County5
- Floyd County5
- Worth County5
- Boone County5
- Benton County5
- Linn County5
- Tama County5
- Franklin County5
- Jackson County5
- Buena Vista County4
- Cherokee County4
- Kossuth County4
- Lyon County4
- O'Brien County4
- Palo Alto County4
- Sioux County4
- Winnebago County4
- Crawford County4
- Sac County4
50 more counties
- Fremont County4
- Page County4
- Calhoun County4
- Greene County4
- Hamilton County4
- Hardin County4
- Marshall County4
- Story County4
- Plymouth County3
- Pocahontas County3
- Emmet County3
- Louisa County3
- Ida County3
- Dallas County3
- Polk County3
- Muscatine County3
- Harrison County3
- Mills County3
- Montgomery County3
- Pottawattamie County3
- Shelby County3
- Carroll County3
- Clinton County3
- Dickinson County2
- Des Moines County2
- Henry County2
- Lee County2
- Woodbury County2
- Poweshiek County2
- Adams County2
- Cass County2
- Taylor County2
- Audubon County2
- Guthrie County2
- Monona County2
- Jasper County2
- Scott County2
- Lucas County1
- Warren County1
- Cedar County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Keokuk County1
- Washington County1
- Adair County1
- Ringgold County1
- Union County1
- Davis County1
- Van Buren County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.