Alert archive / Iowa / Mesoscale Discussions / 2018
Mesoscale Discussions in Iowa, April 2018
6 mesoscale discussions in April 2018. 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 2018. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- April 13, 20183 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 13, 8:44 AM CDT | Mesoscale Discussion | SPC | Allamakee, Dickinson, Emmet, Howard, Lyon, Mitchell and 4 more | 3 hr |
| Apr 13, 2:06 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Decatur, Fremont and 8 more | 2 hr |
| Apr 13, 5:31 PM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Cass, Fremont, Greene, Guthrie and 5 more | 29 min |
| Apr 14, 10:06 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 21 more | 6 hr |
| Apr 14, 6:02 PM CDT | Mesoscale Discussion | SPC | Allamakee, Winneshiek | 6 hr |
| Apr 18, 9:56 AM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winnebago, Winneshiek, Worth | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allamakee County3
- Mitchell County3
- Winnebago County3
- Winneshiek County3
- Worth County3
- Dickinson County2
- Emmet County2
- Howard County2
- Lyon County2
- Osceola County2
- Cass County2
- Fremont County2
- Mills County2
- Montgomery County2
- Page County2
- Pottawattamie County2
- Adair County1
- Adams County1
- Clarke County1
- Decatur County1
- Madison County1
- Ringgold County1
- Taylor County1
- Union County1
- Audubon County1
- Carroll County1
- Greene County1
- Guthrie County1
- Shelby County1
- Buena Vista County1
- Calhoun County1
- Cerro Gordo County1
- Cherokee County1
- Clay County1
- Floyd County1
- Franklin County1
- Hancock County1
- Humboldt County1
- Ida County1
- Kossuth County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.