Alert archive / Iowa / Severe Thunderstorm Warnings / 2001
Severe Thunderstorm Warnings in Iowa, September 2001
87 severe thunderstorm warnings in September 2001. 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 2001. Tap one for its archive.
- Severe Thunderstorm Warnings
- 87
- Busiest day
- September 20, 200136 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 |
|---|---|---|---|---|
| Sep 6, 2:43 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 47 min |
| Sep 6, 4:18 PM CDT | Severe Thunderstorm Warning | DMX | Story | 42 min |
| Sep 6, 5:07 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 38 min |
| Sep 6, 5:14 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 26 min |
| Sep 6, 6:10 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 25 min |
| Sep 6, 6:11 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 34 min |
| Sep 7, 7:47 AM CDT | Severe Thunderstorm Warning | DMX | Polk | 28 min |
| Sep 7, 8:23 AM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 42 min |
| Sep 7, 2:28 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 42 min |
| Sep 7, 3:04 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 41 min |
| Sep 7, 3:12 PM CDT | Severe Thunderstorm Warning | DMX | Story | 38 min |
| Sep 7, 3:21 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall | 44 min |
| Sep 7, 3:41 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Grundy | 39 min |
| Sep 7, 4:01 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 39 min |
| Sep 7, 4:07 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette | 83 min |
| Sep 7, 4:19 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 56 min |
| Sep 7, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 25 min |
| Sep 7, 4:40 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 20 min |
| Sep 7, 5:07 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 53 min |
| Sep 7, 5:14 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 31 min |
| Sep 7, 5:31 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 59 min |
| Sep 7, 6:18 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 57 min |
| Sep 7, 6:53 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 52 min |
| Sep 7, 7:37 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Cass | 43 min |
| Sep 7, 8:13 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Union | 42 min |
| Sep 7, 8:26 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 44 min |
| Sep 7, 8:28 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur | 47 min |
| Sep 7, 8:43 PM CDT | Severe Thunderstorm Warning | DMX | Story | 52 min |
| Sep 7, 8:51 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk, Warren | 44 min |
| Sep 7, 9:02 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 38 min |
| Sep 7, 9:12 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 58 min |
| Sep 7, 9:43 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 32 min |
| Sep 7, 9:46 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 59 min |
| Sep 7, 9:54 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 36 min |
| Sep 7, 10:11 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 34 min |
| Sep 7, 10:11 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 64 min |
| Sep 7, 10:35 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 30 min |
| Sep 7, 10:44 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 31 min |
| Sep 7, 10:58 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Linn | 62 min |
| Sep 7, 11:03 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 57 min |
| Sep 7, 11:19 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 26 min |
| Sep 7, 11:20 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson | 40 min |
| Sep 7, 11:27 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 63 min |
| Sep 20, 10:05 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 40 min |
| Sep 20, 10:07 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 38 min |
| Sep 20, 10:42 AM CDT | Severe Thunderstorm Warning | OAX | Mills | 18 min |
| Sep 20, 10:48 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 42 min |
| Sep 20, 10:51 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 54 min |
| Sep 20, 11:14 AM CDT | Severe Thunderstorm Warning | DMX | Union | 26 min |
| Sep 20, 11:14 AM CDT | Severe Thunderstorm Warning | OAX | Mills | 31 min |
| Sep 20, 11:29 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 31 min |
| Sep 20, 11:45 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 30 min |
| Sep 20, 11:57 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 38 min |
| Sep 20, 12:11 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 29 min |
| Sep 20, 2:11 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 39 min |
| Sep 20, 2:42 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 38 min |
| Sep 20, 2:47 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 43 min |
| Sep 20, 3:19 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 31 min |
| Sep 20, 3:22 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 28 min |
| Sep 20, 3:25 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 65 min |
| Sep 20, 3:40 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 65 min |
| Sep 20, 3:43 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Wright | 47 min |
| Sep 20, 3:46 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 44 min |
| Sep 20, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 29 min |
| Sep 20, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 44 min |
| Sep 20, 4:27 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 28 min |
| Sep 20, 4:36 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 44 min |
| Sep 20, 4:41 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 49 min |
| Sep 20, 4:52 PM CDT | Severe Thunderstorm Warning | DMX | Lucas | 38 min |
| Sep 20, 4:56 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin | 44 min |
| Sep 20, 5:16 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 39 min |
| Sep 20, 5:36 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 24 min |
| Sep 20, 5:44 PM CDT | Severe Thunderstorm Warning | DMX | Monroe | 31 min |
| Sep 20, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Lucas | 43 min |
| Sep 20, 6:29 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 46 min |
| Sep 20, 6:31 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 29 min |
| Sep 20, 6:33 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Washington | 42 min |
| Sep 20, 6:50 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 40 min |
| Sep 20, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 18 min |
| Sep 20, 7:36 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 24 min |
| Sep 22, 7:11 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 49 min |
| Sep 22, 7:19 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 26 min |
| Sep 22, 7:42 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 48 min |
| Sep 22, 8:25 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 50 min |
| Sep 22, 9:26 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 34 min |
| Sep 22, 9:45 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 45 min |
| Sep 22, 9:57 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 48 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Warren County5
- Story County4
- Polk County4
- Mills County4
- Black Hawk County3
- Bremer County3
- Butler County3
- Buchanan County3
- Pottawattamie County3
- Kossuth County3
- Grundy County2
- Scott County2
- Dallas County2
- Hardin County2
- Marshall County2
- Benton County2
- Delaware County2
- Louisa County2
- Adams County2
- Union County2
- Marion County2
- Mahaska County2
- Poweshiek County2
- Iowa County2
- Keokuk County2
- Montgomery County2
- Worth County2
- Mitchell County2
- Wright County2
- Lucas County2
- Davis County2
- Winneshiek County2
- Boone County1
- Chickasaw County1
- Fayette County1
- Dubuque County1
- Des Moines County1
- Fremont County1
- Page County1
- Cass County1
27 more counties
- Adair County1
- Madison County1
- Clarke County1
- Decatur County1
- Jasper County1
- Clinton County1
- Tama County1
- Linn County1
- Clayton County1
- Johnson County1
- Harrison County1
- Taylor County1
- Hancock County1
- Winnebago County1
- Floyd County1
- Humboldt County1
- Cerro Gordo County1
- Franklin County1
- Hamilton County1
- Monroe County1
- Jefferson County1
- Van Buren County1
- Washington County1
- Appanoose County1
- Jones County1
- Clay County1
- Howard County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20002002
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.