Alert archive / Iowa / Mesoscale Discussions / 2017
Mesoscale Discussions in Iowa, April 2017
12 mesoscale discussions in April 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 April 2017. Tap one for its archive.
- Mesoscale Discussions
- 12
- Busiest day
- April 10, 20173 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 |
|---|---|---|---|---|
| Apr 9, 3:16 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 6 more | 119 min |
| Apr 9, 8:06 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Chickasaw, Floyd, Franklin, Hancock, Howard and 4 more | 54 min |
| Apr 9, 10:28 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Decatur, Lucas and 9 more | 2 hr |
| Apr 10, 1:53 AM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Des Moines, Henry and 15 more | 2 hr |
| Apr 15, 4:01 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 46 more | 119 min |
| Apr 15, 5:06 PM CDT | Mesoscale Discussion | SPC | Cedar, Clayton, Clinton, Delaware, Dubuque, Henry and 10 more | 84 min |
| Apr 15, 6:22 PM CDT | Mesoscale Discussion | SPC | Cherokee, Monona, Plymouth, Woodbury | 83 min |
| Apr 15, 7:22 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Benton, Black Hawk, Boone and 35 more | 53 min |
| Apr 19, 2:29 PM CDT | Mesoscale Discussion | SPC | Crawford, Fremont, Harrison, Ida, Mills, Monona and 4 more | 3 hr |
| Apr 19, 5:30 PM CDT | Mesoscale Discussion | SPC | Audubon, Cass, Fremont, Harrison, Mills, Montgomery and 3 more | 60 min |
| Apr 19, 6:55 PM CDT | Mesoscale Discussion | SPC | Boone, Calhoun, Carroll, Cerro Gordo, Crawford, Floyd and 15 more | 95 min |
| Apr 19, 10:06 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Butler, Cedar, Clinton and 25 more | 54 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Winnebago County4
- Franklin County4
- Madison County4
- Page County4
- Warren County4
- Iowa County4
- Johnson County4
- Washington County4
- Fremont County4
- Hardin County4
- Montgomery County4
- Story County4
- Kossuth County3
- Palo Alto County3
- Plymouth County3
- Worth County3
- Cerro Gordo County3
- Hancock County3
- Wright County3
- Adair County3
- Adams County3
- Appanoose County3
- Clarke County3
- Marion County3
- Monroe County3
- Ringgold County3
- Taylor County3
- Union County3
- Wayne County3
- Cedar County3
- Clinton County3
- Jackson County3
- Jefferson County3
- Jones County3
- Keokuk County3
- Louisa County3
- Muscatine County3
- Boone County3
- Cass County3
- Crawford County3
55 more counties
- Dallas County3
- Harrison County3
- Mills County3
- Monona County3
- Polk County3
- Pottawattamie County3
- Shelby County3
- Woodbury County3
- Linn County3
- Clay County2
- Dickinson County2
- Emmet County2
- Lyon County2
- O'Brien County2
- Osceola County2
- Sioux County2
- Floyd County2
- Decatur County2
- Lucas County2
- Davis County2
- Henry County2
- Scott County2
- Wapello County2
- Audubon County2
- Calhoun County2
- Carroll County2
- Cherokee County2
- Greene County2
- Guthrie County2
- Hamilton County2
- Humboldt County2
- Ida County2
- Pocahontas County2
- Sac County2
- Webster County2
- Delaware County2
- Dubuque County2
- Benton County2
- Black Hawk County2
- Buchanan County2
- Grundy County2
- Jasper County2
- Mahaska County2
- Marshall County2
- Poweshiek County2
- Tama County2
- Chickasaw County1
- Howard County1
- Mitchell County1
- Des Moines County1
- Lee County1
- Van Buren County1
- Buena Vista County1
- Clayton County1
- Butler 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.