Alert archive / Iowa / Mesoscale Discussions / 2004
Mesoscale Discussions in Iowa, September 2004
13 mesoscale discussions in September 2004. 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 2004. Tap one for its archive.
- Mesoscale Discussions
- 13
- Busiest day
- September 14, 20043 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 1, 3:20 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Buchanan, Butler, Cedar and 28 more | 115 min |
| Sep 5, 2:34 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 26 more | 56 min |
| Sep 5, 5:39 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 55 more | 96 min |
| Sep 5, 8:03 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 40 more | 57 min |
| Sep 13, 3:21 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 84 min |
| Sep 13, 8:59 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 61 min |
| Sep 14, 1:47 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 23 more | 88 min |
| Sep 14, 5:14 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 32 more | 2 hr |
| Sep 14, 7:17 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 32 more | 118 min |
| Sep 14, 8:16 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Mitchell, Winneshiek | 3 hr |
| Sep 15, 4:00 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 37 more | 3 hr |
| Sep 17, 7:39 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Ringgold, Taylor | 2 hr |
| Sep 18, 1:18 AM CDT | Mesoscale Discussion | SPC | Clarke, Decatur, Lucas, Ringgold, Taylor, Union and 1 more | 117 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boone County8
- Dallas County8
- Greene County8
- Hamilton County8
- Hardin County8
- Story County8
- Marshall County7
- Polk County7
- Webster County7
- Audubon County7
- Calhoun County7
- Carroll County7
- Guthrie County7
- Montgomery County7
- Franklin County6
- Humboldt County6
- Pocahontas County6
- Wright County6
- Crawford County6
- Sac County6
- Shelby County6
- Adair County6
- Cass County6
- Mills County6
- Jasper County5
- Lucas County5
- Warren County5
- Buena Vista County5
- Cerro Gordo County5
- Hancock County5
- Kossuth County5
- Palo Alto County5
- Winnebago County5
- Worth County5
- Fremont County5
- Harrison County5
- Madison County5
- Pottawattamie County5
- Ringgold County5
- Taylor County5
43 more counties
- Marion County4
- Monroe County4
- Clarke County4
- Decatur County4
- Ida County4
- Monona County4
- Page County4
- Union County4
- Wayne County4
- Grundy County3
- Tama County3
- Clay County3
- Dickinson County3
- Emmet County3
- Adams County3
- Appanoose County3
- Cherokee County3
- Lyon County3
- O'Brien County3
- Osceola County3
- Plymouth County3
- Sioux County3
- Woodbury County3
- Benton County2
- Black Hawk County2
- Buchanan County2
- Butler County2
- Mahaska County2
- Poweshiek County2
- Mitchell County2
- Cedar County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Keokuk County1
- Linn County1
- Wapello County1
- Washington County1
- Floyd County1
- Allamakee County1
- Chickasaw County1
- Howard County1
- Winneshiek County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.