Alert archive / Iowa / Mesoscale Discussions / 2017
Mesoscale Discussions in Iowa, May 2017
19 mesoscale discussions in May 2017. 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 May 2017. Tap one for its archive.
- Mesoscale Discussions
- 19
- Busiest day
- May 17, 20179 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 |
|---|---|---|---|---|
| May 8, 6:34 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Emmet, Floyd, Franklin, Hancock, Humboldt and 8 more | 116 min |
| May 10, 1:29 AM CDT | Mesoscale Discussion | SPC | Fremont, Mills | 61 min |
| May 10, 12:05 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Keokuk and 10 more | 2 hr |
| May 10, 3:48 PM CDT | Mesoscale Discussion | SPC | Lee | 87 min |
| May 15, 9:15 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 7 more | 90 min |
| May 15, 3:48 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Butler, Calhoun, Carroll, Cerro Gordo, Chickasaw and 16 more | 87 min |
| May 15, 7:19 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 26 more | 56 min |
| May 15, 8:50 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Mitchell, Osceola and 3 more | 115 min |
| May 16, 2:13 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Hancock and 12 more | 92 min |
| May 16, 3:58 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Buena Vista, Calhoun, Carroll, Cass and 23 more | 2 hr |
| May 16, 7:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 59 more | 59 min |
| May 16, 9:43 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 16 more | 62 min |
| May 16, 11:48 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Black Hawk, Boone, Bremer, Butler and 28 more | 117 min |
| May 17, 11:39 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more | 66 min |
| May 17, 12:23 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton | 97 min |
| May 17, 2:25 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 32 more | 65 min |
| May 17, 2:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 15 more | 97 min |
| May 17, 3:24 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clinton, Davis, Delaware and 17 more | 66 min |
| May 17, 6:05 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 18 more | 55 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mitchell County9
- Worth County8
- Cerro Gordo County7
- Emmet County7
- Floyd County7
- Franklin County7
- Kossuth County7
- Palo Alto County7
- Pocahontas County7
- Webster County6
- Winnebago County6
- Fremont County6
- Mills County6
- Sac County6
- Carroll County6
- Chickasaw County6
- Howard County6
- Hancock County5
- Humboldt County5
- Wright County5
- Marion County5
- Buena Vista County5
- Clay County5
- Dickinson County5
- Osceola County5
- Butler County5
- Calhoun County5
- Crawford County5
- Hamilton County5
- Allamakee County5
- Black Hawk County5
- Bremer County5
- Winneshiek County5
- Adams County5
- Audubon County5
- Cass County5
- Guthrie County5
- Montgomery County5
- Page County5
- Pottawattamie County5
59 more counties
- Shelby County5
- Adair County5
- Lucas County4
- Wayne County4
- Cherokee County4
- O'Brien County4
- Plymouth County4
- Buchanan County4
- Clayton County4
- Delaware County4
- Dubuque County4
- Fayette County4
- Grundy County4
- Hardin County4
- Harrison County4
- Monona County4
- Benton County4
- Boone County4
- Clarke County4
- Dallas County4
- Greene County4
- Jasper County4
- Madison County4
- Polk County4
- Ringgold County4
- Story County4
- Taylor County4
- Union County4
- Warren County4
- Henry County3
- Jefferson County3
- Keokuk County3
- Lee County3
- Louisa County3
- Wapello County3
- Washington County3
- Sioux County3
- Ida County3
- Jones County3
- Poweshiek County3
- Tama County3
- Decatur County3
- Linn County3
- Appanoose County2
- Davis County2
- Des Moines County2
- Mahaska County2
- Monroe County2
- Van Buren County2
- Lyon County2
- Clinton County2
- Jackson County2
- Woodbury County2
- Marshall County2
- Cedar County2
- Johnson County2
- Muscatine County2
- Iowa County1
- Scott County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.