Alert archive / Iowa / Mesoscale Discussions / 2012
Mesoscale Discussions in Iowa, April 2012
13 mesoscale discussions in April 2012. 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 April 2012. Tap one for its archive.
- Mesoscale Discussions
- 13
- Busiest day
- April 15, 20126 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 |
|---|---|---|---|---|
| Mar 31, 8:52 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clinton, Delaware and 20 more | 53 min |
| Apr 1, 1:33 AM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 117 min |
| Apr 1, 7:56 AM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 2 hr |
| Apr 14, 2:15 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 5 more | 90 min |
| Apr 14, 4:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 17 more | 58 min |
| Apr 14, 6:57 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 23 more | 63 min |
| Apr 14, 7:50 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Delaware, Henry, Iowa and 13 more | 55 min |
| Apr 14, 7:51 PM CDT | Mesoscale Discussion | SPC | Cherokee, Ida, Lyon, Monona, O'Brien, Osceola and 3 more | 84 min |
| Apr 14, 9:54 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Jackson, Jones, Louisa, Muscatine and 1 more | 96 min |
| Apr 14, 11:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more | 92 min |
| Apr 15, 3:25 AM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 5 more | 95 min |
| Apr 15, 1:56 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 28 more | 94 min |
| Apr 19, 2:23 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Crawford, Dallas and 7 more | 97 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Audubon County6
- Adams County5
- Cass County5
- Guthrie County5
- Clinton County4
- Jackson County4
- Mahaska County4
- Poweshiek County4
- Scott County4
- Fremont County4
- Mills County4
- Montgomery County4
- Page County4
- Pottawattamie County4
- Shelby County4
- Dallas County4
- Cedar County3
- Iowa County3
- Jasper County3
- Jones County3
- Keokuk County3
- Louisa County3
- Muscatine County3
- Tama County3
- Harrison County3
- Monona County3
- Adair County3
- Appanoose County3
- Clarke County3
- Decatur County3
- Lucas County3
- Madison County3
- Marion County3
- Monroe County3
- Polk County3
- Ringgold County3
- Union County3
- Warren County3
- Wayne County3
- Wapello County3
52 more counties
- Boone County3
- Carroll County3
- Crawford County3
- Greene County3
- Hamilton County3
- Story County3
- Benton County2
- Buchanan County2
- Delaware County2
- Henry County2
- Jefferson County2
- Johnson County2
- Linn County2
- Marshall County2
- Washington County2
- Taylor County2
- Davis County2
- Cherokee County2
- Ida County2
- O'Brien County2
- Osceola County2
- Calhoun County2
- Webster County2
- Black Hawk County1
- Des Moines County1
- Dubuque County1
- Grundy County1
- Van Buren County1
- Lyon County1
- Plymouth County1
- Sioux County1
- Woodbury County1
- Buena Vista County1
- Butler County1
- Cerro Gordo County1
- Clay County1
- Dickinson County1
- Emmet County1
- Floyd County1
- Franklin County1
- Hancock County1
- Hardin County1
- Howard County1
- Humboldt County1
- Kossuth County1
- Mitchell County1
- Palo Alto County1
- Pocahontas County1
- Sac County1
- Winnebago County1
- Worth County1
- Wright County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.