Alert archive / Iowa / Mesoscale Discussions / 2011
Mesoscale Discussions in Iowa, September 2011
4 mesoscale discussions in September 2011. 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 2011. Tap one for its archive.
- Mesoscale Discussions
- 4
- Busiest day
- September 2, 20112 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, 3:27 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Clay, Emmet, Floyd, Hancock and 10 more | 93 min |
| Sep 2, 2:41 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 66 more | 94 min |
| Sep 2, 10:04 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 22 more | 86 min |
| Sep 2, 11:56 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Buchanan, Cedar, Clayton and 26 more | 94 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Benton County3
- Black Hawk County3
- Boone County3
- Buchanan County3
- Dallas County3
- Delaware County3
- Greene County3
- Grundy County3
- Hamilton County3
- Hardin County3
- Iowa County3
- Jasper County3
- Johnson County3
- Linn County3
- Madison County3
- Marion County3
- Marshall County3
- Polk County3
- Poweshiek County3
- Story County3
- Tama County3
- Warren County3
- Cerro Gordo County2
- Floyd County2
- Hancock County2
- Howard County2
- Humboldt County2
- Pocahontas County2
- Winneshiek County2
- Adair County2
- Adams County2
- Audubon County2
- Cass County2
- Cedar County2
- Clayton County2
- Clinton County2
- Dubuque County2
- Guthrie County2
- Jackson County2
- Jones County2
41 more counties
- Keokuk County2
- Mahaska County2
- Muscatine County2
- Scott County2
- Union County2
- Buena Vista County1
- Clay County1
- Emmet County1
- Kossuth County1
- Mitchell County1
- O'Brien County1
- Palo Alto County1
- Winnebago County1
- Worth County1
- Allamakee County1
- Bremer County1
- Butler County1
- Calhoun County1
- Carroll County1
- Chickasaw County1
- Clarke County1
- Crawford County1
- Fayette County1
- Franklin County1
- Fremont County1
- Harrison County1
- Ida County1
- Jefferson County1
- Louisa County1
- Lucas County1
- Mills County1
- Monona County1
- Monroe County1
- Montgomery County1
- Pottawattamie County1
- Sac County1
- Shelby County1
- Wapello County1
- Washington County1
- Webster County1
- Wright County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.