Alert archive / Iowa / Severe Thunderstorm Warnings / 2014
Severe Thunderstorm Warnings in Iowa, September 2014
57 severe thunderstorm warnings in September 2014. 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 September 2014. Tap one for its archive.
- Severe Thunderstorm Warnings
- 57
- Busiest day
- September 1, 201427 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 31, 7:01 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 44 min |
| Aug 31, 7:10 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 50 min |
| Aug 31, 7:25 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 50 min |
| Aug 31, 7:29 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac, Webster | 46 min |
| Aug 31, 7:33 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Calhoun, Carroll, Greene, Guthrie | 42 min |
| Aug 31, 7:44 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas, Webster | 46 min |
| Aug 31, 7:47 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 28 min |
| Aug 31, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 65 min |
| Aug 31, 7:59 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 46 min |
| Aug 31, 8:02 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Boone, Carroll, Dallas, Greene, Guthrie | 58 min |
| Aug 31, 8:06 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Carroll, Greene, Hamilton, Webster | 54 min |
| Aug 31, 8:08 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Webster, Wright | 52 min |
| Aug 31, 8:19 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 26 min |
| Aug 31, 8:44 PM CDT | Severe Thunderstorm Warning | OAX | Page | 31 min |
| Aug 31, 8:46 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 59 min |
| Aug 31, 8:48 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 57 min |
| Aug 31, 9:12 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Franklin, Grundy, Hardin and 1 more | 48 min |
| Aug 31, 9:17 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 43 min |
| Aug 31, 9:30 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Tama | 60 min |
| Aug 31, 9:44 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Howard | 46 min |
| Aug 31, 9:46 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 44 min |
| Aug 31, 9:55 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy, Tama | 50 min |
| Aug 31, 10:09 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Warren | 51 min |
| Aug 31, 10:20 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 55 min |
| Aug 31, 10:30 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 48 min |
| Aug 31, 11:49 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 41 min |
| Sep 1, 12:19 AM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Louisa, Washington | 41 min |
| Sep 9, 1:08 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 47 min |
| Sep 9, 1:33 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison | 57 min |
| Sep 9, 3:01 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 29 min |
| Sep 9, 3:06 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 24 min |
| Sep 9, 3:28 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Pottawattamie | 47 min |
| Sep 9, 3:53 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 37 min |
| Sep 9, 4:02 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 43 min |
| Sep 9, 4:23 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 37 min |
| Sep 9, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor, Union | 41 min |
| Sep 9, 4:56 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 34 min |
| Sep 9, 5:02 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 43 min |
| Sep 9, 5:05 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Wapello | 25 min |
| Sep 9, 5:41 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 49 min |
| Sep 9, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 46 min |
| Sep 19, 8:44 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 31 min |
| Sep 19, 9:09 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 36 min |
| Sep 19, 9:42 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 33 min |
| Sep 19, 9:44 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 31 min |
| Sep 19, 10:18 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Osceola | 27 min |
| Sep 19, 10:39 PM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 37 min |
| Sep 19, 10:49 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 41 min |
| Sep 19, 11:21 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Plymouth | 24 min |
| Sep 19, 11:27 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto | 33 min |
| Sep 19, 11:33 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 17 min |
| Sep 19, 11:40 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 35 min |
| Sep 20, 12:00 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Webster | 19 min |
| Sep 20, 12:38 AM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 37 min |
| Sep 20, 6:34 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago, Worth | 41 min |
| Sep 20, 6:39 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 51 min |
| Sep 20, 7:30 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 33 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County6
- Kossuth County6
- Webster County5
- Mills County5
- Carroll County4
- Calhoun County4
- Pocahontas County4
- Humboldt County4
- Fremont County4
- Boone County4
- Dallas County4
- O'Brien County4
- Harrison County3
- Shelby County3
- Audubon County3
- Greene County3
- Guthrie County3
- Palo Alto County3
- Tama County3
- Mahaska County3
- Union County3
- Lyon County3
- Sioux County3
- Osceola County3
- Sac County2
- Hancock County2
- Winnebago County2
- Page County2
- Polk County2
- Story County2
- Black Hawk County2
- Bremer County2
- Butler County2
- Grundy County2
- Howard County2
- Wapello County2
- Adams County2
- Taylor County2
- Ringgold County2
- Decatur County2
37 more counties
- Clay County2
- Buena Vista County2
- Winneshiek County2
- Crawford County1
- Hamilton County1
- Wright County1
- Franklin County1
- Hardin County1
- Floyd County1
- Mitchell County1
- Marshall County1
- Chickasaw County1
- Jasper County1
- Marion County1
- Warren County1
- Benton County1
- Buchanan County1
- Delaware County1
- Linn County1
- Fayette County1
- Monroe County1
- Iowa County1
- Johnson County1
- Keokuk County1
- Louisa County1
- Washington County1
- Adair County1
- Cass County1
- Madison County1
- Clarke County1
- Wayne County1
- Dickinson County1
- Cherokee County1
- Plymouth County1
- Ida County1
- Woodbury County1
- Worth County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20132015
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.