Alert archive / Iowa / Severe Thunderstorm Warnings / 2012
Severe Thunderstorm Warnings in Iowa, August 2012
43 severe thunderstorm warnings in August 2012. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 2012. Tap one for its archive.
- Severe Thunderstorm Warnings
- 43
- Busiest day
- August 8, 201220 severe thunderstorm warnings
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 2, 3:22 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 38 min |
| Aug 3, 10:43 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 32 min |
| Aug 4, 12:05 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Iowa, Johnson, Keokuk and 2 more | 55 min |
| Aug 4, 12:38 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 5 more | 67 min |
| Aug 4, 12:59 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa, Muscatine, Scott | 76 min |
| Aug 7, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 45 min |
| Aug 7, 7:47 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 43 min |
| Aug 7, 9:17 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 24 min |
| Aug 8, 10:47 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 28 min |
| Aug 8, 1:06 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 26 min |
| Aug 8, 2:00 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 45 min |
| Aug 8, 2:37 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 53 min |
| Aug 8, 3:01 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie | 43 min |
| Aug 8, 3:09 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison | 51 min |
| Aug 8, 3:30 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 30 min |
| Aug 8, 3:54 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 38 min |
| Aug 8, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Polk, Warren | 29 min |
| Aug 8, 4:45 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 36 min |
| Aug 8, 4:48 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 27 min |
| Aug 8, 6:05 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin | 25 min |
| Aug 8, 6:14 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 31 min |
| Aug 8, 6:29 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 46 min |
| Aug 8, 6:32 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 28 min |
| Aug 8, 6:46 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 29 min |
| Aug 8, 6:56 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 34 min |
| Aug 8, 7:08 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Howard | 52 min |
| Aug 8, 7:20 PM CDT | Severe Thunderstorm Warning | OAX | Page | 40 min |
| Aug 9, 4:49 PM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 56 min |
| Aug 9, 6:44 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 16 min |
| Aug 9, 6:55 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk, Washington | 46 min |
| Aug 9, 7:07 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Jones | 38 min |
| Aug 15, 11:41 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 34 min |
| Aug 16, 12:02 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 28 min |
| Aug 16, 12:22 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 23 min |
| Aug 16, 12:27 AM CDT | Severe Thunderstorm Warning | OAX | Mills | 33 min |
| Aug 16, 12:44 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Page | 31 min |
| Aug 16, 1:30 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 30 min |
| Aug 16, 1:47 AM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 28 min |
| Aug 16, 1:59 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 16 min |
| Aug 16, 2:40 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 35 min |
| Aug 16, 3:10 AM CDT | Severe Thunderstorm Warning | DMX | Dallas | 35 min |
| Aug 16, 3:37 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 23 min |
| Aug 23, 7:45 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 45 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mills County7
- Pottawattamie County5
- Washington County3
- Greene County3
- Dallas County3
- Polk County3
- Butler County3
- Fremont County3
- Page County3
- Delaware County2
- Iowa County2
- Johnson County2
- Keokuk County2
- Cedar County2
- Jones County2
- Louisa County2
- Muscatine County2
- Scott County2
- Adair County2
- Boone County2
- Guthrie County2
- Jasper County2
- Franklin County2
- Monona County2
- Allamakee County1
- Dickinson County1
- Benton County1
- Buchanan County1
- Linn County1
- Clinton County1
- Dubuque County1
- Jackson County1
- Des Moines County1
- Cass County1
- Sioux County1
- Harrison County1
- Calhoun County1
- Carroll County1
- Madison County1
- Story County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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. Rebuilt daily.