Alert archive / Iowa / Mesoscale Discussions / 2015
Mesoscale Discussions in Iowa, September 2015
16 mesoscale discussions in September 2015. 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 2015. Tap one for its archive.
- Mesoscale Discussions
- 16
- Busiest day
- September 18, 20154 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 6, 2:31 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Sioux | 119 min |
| Sep 6, 5:12 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Winneshiek | 2 hr |
| Sep 6, 5:26 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 28 more | 94 min |
| Sep 6, 8:42 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 44 more | 93 min |
| Sep 6, 11:41 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 38 more | 64 min |
| Sep 7, 2:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Page | 87 min |
| Sep 7, 8:38 PM CDT | Mesoscale Discussion | SPC | Fremont | 67 min |
| Sep 9, 5:10 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Sioux | 2 hr |
| Sep 10, 8:22 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 4 more | 113 min |
| Sep 17, 3:58 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Chickasaw, Clay, Dickinson and 14 more | 2 hr |
| Sep 17, 5:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Clarke, Dallas, Decatur, Fremont and 9 more | 118 min |
| Sep 17, 7:54 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren | 66 min |
| Sep 17, 10:12 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Lucas, Monroe, Ringgold and 1 more | 63 min |
| Sep 18, 9:25 AM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Mills, Montgomery, Page and 4 more | 65 min |
| Sep 18, 5:20 PM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Lee, Van Buren | 2 hr |
| Sep 22, 1:06 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Carroll, Cass, Crawford, Dallas and 6 more | 84 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County7
- Page County6
- Cass County5
- Mills County5
- Montgomery County5
- Ringgold County5
- Chickasaw County4
- Howard County4
- Audubon County4
- Guthrie County4
- Adair County4
- Adams County4
- Clarke County4
- Dallas County4
- Taylor County4
- Union County4
- Dickinson County3
- O'Brien County3
- Osceola County3
- Winneshiek County3
- Calhoun County3
- Carroll County3
- Crawford County3
- Greene County3
- Hancock County3
- Harrison County3
- Humboldt County3
- Kossuth County3
- Pocahontas County3
- Pottawattamie County3
- Shelby County3
- Webster County3
- Winnebago County3
- Wright County3
- Floyd County3
- Franklin County3
- Madison County3
- Polk County3
- Warren County3
- Decatur County3
46 more counties
- Lucas County3
- Des Moines County3
- Henry County3
- Lee County3
- Van Buren County3
- Lyon County2
- Sioux County2
- Allamakee County2
- Buena Vista County2
- Clay County2
- Emmet County2
- Ida County2
- Monona County2
- Palo Alto County2
- Sac County2
- Woodbury County2
- Black Hawk County2
- Boone County2
- Bremer County2
- Butler County2
- Cerro Gordo County2
- Grundy County2
- Hamilton County2
- Hardin County2
- Jasper County2
- Marshall County2
- Mitchell County2
- Story County2
- Worth County2
- Appanoose County2
- Davis County2
- Jefferson County2
- Louisa County2
- Monroe County2
- Cherokee County1
- Plymouth County1
- Benton County1
- Buchanan County1
- Clayton County1
- Fayette County1
- Mahaska County1
- Marion County1
- Poweshiek County1
- Tama County1
- Wapello County1
- Wayne County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.