Alert archive / Iowa / Mesoscale Discussions / 2017
Mesoscale Discussions in Iowa, August 2017
13 mesoscale discussions in August 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 August 2017. Tap one for its archive.
- Mesoscale Discussions
- 13
- Busiest day
- August 21, 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 |
|---|---|---|---|---|
| Aug 3, 5:18 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Jackson, Scott | 2 hr |
| Aug 10, 2:07 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Louisa and 3 more | 113 min |
| Aug 10, 5:31 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Henry, Lee, Louisa, Muscatine and 1 more | 89 min |
| Aug 13, 7:38 PM CDT | Mesoscale Discussion | SPC | Lyon, Sioux | 97 min |
| Aug 16, 12:42 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Lee, Monroe, Van Buren, Wapello | 3 hr |
| Aug 16, 2:35 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Cedar, Clayton and 18 more | 2 hr |
| Aug 18, 2:54 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 16 more | 3 hr |
| Aug 18, 6:58 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 34 more | 62 min |
| Aug 18, 9:00 PM CDT | Mesoscale Discussion | SPC | Adair, Boone, Buena Vista, Calhoun, Carroll, Cerro Gordo and 29 more | 60 min |
| Aug 20, 11:14 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 15 more | 91 min |
| Aug 21, 11:12 AM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 93 min |
| Aug 21, 2:35 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 27 more | 85 min |
| Aug 26, 1:35 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 18 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Calhoun County6
- Carroll County6
- Sac County5
- Webster County5
- Boone County5
- Dallas County5
- Greene County5
- Guthrie County5
- Clinton County4
- Des Moines County4
- Scott County4
- Lyon County4
- Sioux County4
- Buena Vista County4
- Clay County4
- Dickinson County4
- Emmet County4
- Hancock County4
- Humboldt County4
- Kossuth County4
- O'Brien County4
- Palo Alto County4
- Plymouth County4
- Pocahontas County4
- Winnebago County4
- Adair County4
- Audubon County4
- Hamilton County4
- Madison County4
- Polk County4
- Warren County4
- Jackson County3
- Henry County3
- Louisa County3
- Muscatine County3
- Lee County3
- Cherokee County3
- Crawford County3
- Ida County3
- Osceola County3
46 more counties
- Story County3
- Wright County3
- Shelby County3
- Cedar County2
- Washington County2
- Tama County2
- Cerro Gordo County2
- Franklin County2
- Grundy County2
- Hardin County2
- Jasper County2
- Mahaska County2
- Marion County2
- Marshall County2
- Worth County2
- Cass County2
- Harrison County2
- Monona County2
- Union County2
- Woodbury County2
- Appanoose County1
- Davis County1
- Monroe County1
- Van Buren County1
- Wapello County1
- Benton County1
- Black Hawk County1
- Bremer County1
- Buchanan County1
- Clayton County1
- Delaware County1
- Dubuque County1
- Fayette County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Jones County1
- Linn County1
- Poweshiek County1
- Adams County1
- Clarke County1
- Lucas County1
- Montgomery County1
- Pottawattamie County1
- Ringgold County1
- Taylor 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.