Alert archive / Iowa / Tornado Warnings
Tornado Warnings in Iowa, 2004
205 tornado warnings in 2004. 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 tornado warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count in 2004. Tap one for its archive.
- Tornado Warnings
- 205
- Busiest month
- May102 tornado warnings
- Busiest day
- May 23, 200423 tornado warnings
Over time
By month
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 17, 9:37 PM CDT | Tornado Warning | DMX | Cerro Gordo, Worth | 38 min |
| Apr 17, 9:41 PM CDT | Tornado Warning | ARX | Floyd | 64 min |
| Apr 17, 10:33 PM CDT | Tornado Warning | DMX | Worth | 27 min |
| Apr 17, 10:36 PM CDT | Tornado Warning | ARX | Chickasaw | 69 min |
| Apr 17, 10:47 PM CDT | Tornado Warning | ARX | Floyd | 73 min |
| Apr 17, 10:49 PM CDT | Tornado Warning | ARX | Mitchell | 56 min |
| Apr 17, 11:01 PM CDT | Tornado Warning | DMX | Worth | 29 min |
| Apr 18, 8:01 PM CDT | Tornado Warning | FSD | Woodbury | 29 min |
| Apr 20, 5:56 PM CDT | Tornado Warning | DMX | Polk | 34 min |
| Apr 20, 7:05 PM CDT | Tornado Warning | DVN | Clinton, Jackson | 55 min |
| May 8, 6:19 PM CDT | Tornado Warning | DMX | Dallas, Guthrie | 26 min |
| May 8, 6:21 PM CDT | Tornado Warning | DMX | Dallas, Guthrie | 24 min |
| May 8, 6:57 PM CDT | Tornado Warning | DMX | Dallas, Guthrie | 33 min |
| May 8, 7:29 PM CDT | Tornado Warning | DMX | Dallas, Madison | 31 min |
| May 21, 2:02 PM CDT | Tornado Warning | DMX | Grundy | 43 min |
| May 21, 2:06 PM CDT | Tornado Warning | DMX | Hamilton | 39 min |
| May 21, 2:39 PM CDT | Tornado Warning | DMX | Hardin | 51 min |
| May 21, 2:43 PM CDT | Tornado Warning | DMX | Black Hawk | 57 min |
| May 21, 2:45 PM CDT | Tornado Warning | DMX | Grundy | 45 min |
| May 21, 3:26 PM CDT | Tornado Warning | DVN | Buchanan | 64 min |
| May 21, 3:27 PM CDT | Tornado Warning | DMX | Grundy | 48 min |
| May 21, 3:35 PM CDT | Tornado Warning | DMX | Black Hawk | 40 min |
| May 21, 3:38 PM CDT | Tornado Warning | DVN | Benton | 37 min |
| May 21, 3:44 PM CDT | Tornado Warning | DMX | Marshall, Tama | 31 min |
| May 21, 4:12 PM CDT | Tornado Warning | DVN | Linn | 63 min |
| May 21, 4:14 PM CDT | Tornado Warning | DVN | Benton | 31 min |
| May 21, 4:16 PM CDT | Tornado Warning | DMX | Tama | 29 min |
| May 21, 4:48 PM CDT | Tornado Warning | DVN | Benton | 57 min |
| May 21, 5:05 PM CDT | Tornado Warning | DVN | Jones | 55 min |
| May 21, 5:38 PM CDT | Tornado Warning | DVN | Clinton, Jackson | 67 min |
| May 21, 5:54 PM CDT | Tornado Warning | DMX | Palo Alto, Pocahontas | 51 min |
| May 21, 6:15 PM CDT | Tornado Warning | DMX | Humboldt, Kossuth | 45 min |
| May 21, 6:41 PM CDT | Tornado Warning | DMX | Humboldt | 34 min |
| May 21, 7:16 PM CDT | Tornado Warning | DMX | Wright | 29 min |
| May 21, 8:12 PM CDT | Tornado Warning | DMX | Bremer | 48 min |
| May 21, 8:19 PM CDT | Tornado Warning | FSD | Plymouth | 41 min |
| May 21, 8:56 PM CDT | Tornado Warning | FSD | Plymouth | 49 min |
| May 22, 12:07 AM CDT | Tornado Warning | DMX | Hamilton | 38 min |
| May 22, 6:41 PM CDT | Tornado Warning | DMX | Boone | 34 min |
| May 22, 6:51 PM CDT | Tornado Warning | DMX | Carroll | 39 min |
| May 22, 7:00 PM CDT | Tornado Warning | DMX | Adair | 30 min |
| May 22, 7:01 PM CDT | Tornado Warning | DMX | Adair | 29 min |
| May 22, 7:06 PM CDT | Tornado Warning | DMX | Polk, Story | 54 min |
| May 22, 7:10 PM CDT | Tornado Warning | DMX | Dallas, Guthrie | 50 min |
| May 22, 7:14 PM CDT | Tornado Warning | DMX | Audubon | 31 min |
| May 22, 7:14 PM CDT | Tornado Warning | DMX | Greene, Guthrie | 46 min |
| May 22, 7:23 PM CDT | Tornado Warning | DMX | Madison | 37 min |
| May 22, 7:31 PM CDT | Tornado Warning | DMX | Guthrie | 44 min |
| May 22, 7:49 PM CDT | Tornado Warning | DMX | Jasper, Marshall | 56 min |
| May 22, 7:51 PM CDT | Tornado Warning | DMX | Dallas | 39 min |
| May 22, 7:51 PM CDT | Tornado Warning | OAX | Harrison, Shelby | 54 min |
| May 22, 7:57 PM CDT | Tornado Warning | DMX | Story | 33 min |
| May 22, 8:18 PM CDT | Tornado Warning | DMX | Polk | 57 min |
| May 22, 8:29 PM CDT | Tornado Warning | DMX | Dallas | 16 min |
| May 22, 8:41 PM CDT | Tornado Warning | DMX | Tama | 49 min |
| May 22, 8:43 PM CDT | Tornado Warning | DMX | Marshall | 47 min |
| May 22, 8:51 PM CDT | Tornado Warning | OAX | Shelby | 39 min |
| May 22, 9:09 PM CDT | Tornado Warning | DMX | Polk, Story | 36 min |
| May 22, 9:14 PM CDT | Tornado Warning | DMX | Dallas | 31 min |
| May 22, 9:27 PM CDT | Tornado Warning | DMX | Marshall, Tama | 63 min |
| May 22, 10:12 PM CDT | Tornado Warning | OAX | Mills | 48 min |
| May 22, 11:54 PM CDT | Tornado Warning | DMX | Warren | 36 min |
| May 23, 12:07 AM CDT | Tornado Warning | DMX | Jasper, Marion | 53 min |
| May 24, 4:13 PM CDT | Tornado Warning | DMX | Adair | 32 min |
| May 24, 4:18 PM CDT | Tornado Warning | OAX | Fremont | 27 min |
| May 24, 4:44 PM CDT | Tornado Warning | OAX | Mills | 31 min |
| May 24, 4:45 PM CDT | Tornado Warning | DMX | Madison | 45 min |
| May 24, 4:47 PM CDT | Tornado Warning | OAX | Fremont | 28 min |
| May 24, 5:04 PM CDT | Tornado Warning | DMX | Dallas | 56 min |
| May 24, 5:19 PM CDT | Tornado Warning | DMX | Polk | 56 min |
| May 24, 5:30 PM CDT | Tornado Warning | DMX | Madison | 15 min |
| May 24, 5:36 PM CDT | Tornado Warning | DMX | Warren | 24 min |
| May 24, 5:42 PM CDT | Tornado Warning | OAX | Page | 33 min |
| May 24, 5:43 PM CDT | Tornado Warning | DMX | Madison | 32 min |
| May 24, 5:59 PM CDT | Tornado Warning | DMX | Warren | 46 min |
| May 24, 6:26 PM CDT | Tornado Warning | DMX | Madison | 49 min |
| May 24, 6:35 PM CDT | Tornado Warning | DMX | Taylor | 40 min |
| May 24, 6:41 PM CDT | Tornado Warning | DMX | Marion | 49 min |
| May 24, 6:45 PM CDT | Tornado Warning | DMX | Warren | 30 min |
| May 24, 6:47 PM CDT | Tornado Warning | DMX | Monroe | 43 min |
| May 24, 6:52 PM CDT | Tornado Warning | DMX | Ringgold | 38 min |
| May 24, 7:06 PM CDT | Tornado Warning | DMX | Mahaska | 54 min |
| May 24, 7:15 PM CDT | Tornado Warning | DMX | Warren | 30 min |
| May 24, 7:23 PM CDT | Tornado Warning | DMX | Decatur | 67 min |
| May 24, 7:27 PM CDT | Tornado Warning | DMX | Ringgold | 33 min |
| May 24, 7:30 PM CDT | Tornado Warning | DMX | Decatur | 60 min |
| May 24, 7:38 PM CDT | Tornado Warning | DMX | Jasper | 52 min |
| May 24, 7:42 PM CDT | Tornado Warning | DMX | Appanoose | 48 min |
| May 24, 8:28 PM CDT | Tornado Warning | DVN | Lee | 62 min |
| May 24, 8:52 PM CDT | Tornado Warning | DMX | Appanoose | 23 min |
| May 24, 8:56 PM CDT | Tornado Warning | DMX | Davis | 49 min |
| May 26, 7:47 PM CDT | Tornado Warning | FSD | Lyon | 43 min |
| May 27, 12:41 PM CDT | Tornado Warning | DMX | Appanoose, Wayne | 49 min |
| May 28, 8:04 PM CDT | Tornado Warning | FSD | Sioux | 41 min |
| May 28, 8:37 PM CDT | Tornado Warning | FSD | Woodbury | 23 min |
| May 28, 8:44 PM CDT | Tornado Warning | FSD | Sioux | 46 min |
| May 28, 8:59 PM CDT | Tornado Warning | FSD | Woodbury | 31 min |
| May 28, 9:27 PM CDT | Tornado Warning | FSD | Sioux | 33 min |
| May 28, 9:31 PM CDT | Tornado Warning | FSD | Woodbury | 29 min |
| May 28, 9:57 PM CDT | Tornado Warning | FSD | Woodbury | 18 min |
| May 28, 11:53 PM CDT | Tornado Warning | DMX | Sac | 37 min |
| May 30, 1:38 AM CDT | Tornado Warning | DMX | Appanoose, Monroe | 47 min |
| May 30, 2:29 PM CDT | Tornado Warning | DVN | Lee | 46 min |
| May 30, 2:45 PM CDT | Tornado Warning | DVN | Des Moines | 45 min |
| May 30, 3:26 PM CDT | Tornado Warning | DVN | Benton, Buchanan, Linn | 64 min |
| May 30, 3:41 PM CDT | Tornado Warning | DVN | Dubuque, Jones | 49 min |
| May 30, 3:52 PM CDT | Tornado Warning | DVN | Iowa, Johnson | 53 min |
| May 30, 3:58 PM CDT | Tornado Warning | DVN | Delaware | 62 min |
| May 30, 4:03 PM CDT | Tornado Warning | DVN | Cedar, Muscatine | 42 min |
| May 30, 4:18 PM CDT | Tornado Warning | DVN | Dubuque | 57 min |
| May 30, 4:44 PM CDT | Tornado Warning | DVN | Cedar, Scott | 46 min |
| May 30, 7:16 PM CDT | Tornado Warning | DVN | Buchanan | 44 min |
| Jun 11, 2:15 PM CDT | Tornado Warning | FSD | Buena Vista, Clay | 30 min |
| Jun 11, 2:28 PM CDT | Tornado Warning | DMX | Palo Alto | 57 min |
| Jun 11, 2:45 PM CDT | Tornado Warning | FSD | Clay | 30 min |
| Jun 11, 2:59 PM CDT | Tornado Warning | FSD | Clay | 31 min |
| Jun 11, 3:24 PM CDT | Tornado Warning | DMX | Emmet, Palo Alto | 56 min |
| Jun 11, 3:30 PM CDT | Tornado Warning | FSD | Clay | 30 min |
| Jun 11, 3:37 PM CDT | Tornado Warning | FSD | Dickinson | 23 min |
| Jun 11, 4:01 PM CDT | Tornado Warning | DMX | Kossuth | 44 min |
| Jun 11, 4:45 PM CDT | Tornado Warning | DMX | Palo Alto | 45 min |
| Jun 11, 5:32 PM CDT | Tornado Warning | ARX | Howard | 43 min |
| Jun 11, 6:36 PM CDT | Tornado Warning | DMX | Webster | 24 min |
| Jun 11, 6:56 PM CDT | Tornado Warning | DMX | Webster | 34 min |
| Jun 11, 7:28 PM CDT | Tornado Warning | DMX | Webster | 32 min |
| Jun 11, 7:49 PM CDT | Tornado Warning | DMX | Hamilton | 56 min |
| Jun 11, 8:02 PM CDT | Tornado Warning | DMX | Webster | 28 min |
| Jun 11, 8:13 PM CDT | Tornado Warning | DMX | Boone | 47 min |
| Jun 11, 8:30 PM CDT | Tornado Warning | DMX | Webster | 15 min |
| Jun 11, 8:47 PM CDT | Tornado Warning | DMX | Hamilton | 43 min |
| Jun 11, 8:59 PM CDT | Tornado Warning | DMX | Boone | 46 min |
| Jun 11, 9:06 PM CDT | Tornado Warning | ARX | Winneshiek | 24 min |
| Jun 12, 1:49 PM CDT | Tornado Warning | OAX | Monona | 26 min |
| Jun 12, 2:03 PM CDT | Tornado Warning | OAX | Mills, Montgomery | 27 min |
| Jun 16, 10:59 AM CDT | Tornado Warning | DMX | Crawford | 31 min |
| Jun 16, 1:01 PM CDT | Tornado Warning | DMX | Calhoun | 44 min |
| Jun 16, 1:38 PM CDT | Tornado Warning | DMX | Webster | 57 min |
| Jun 16, 2:05 PM CDT | Tornado Warning | ARX | Howard | 55 min |
| Jun 16, 2:49 PM CDT | Tornado Warning | ARX | Mitchell | 56 min |
| Jun 16, 3:07 PM CDT | Tornado Warning | ARX | Floyd | 53 min |
| Jul 5, 5:13 PM CDT | Tornado Warning | ARX | Fayette | 32 min |
| Jul 5, 5:52 PM CDT | Tornado Warning | ARX | Howard | 38 min |
| Jul 5, 6:33 PM CDT | Tornado Warning | ARX | Fayette | 27 min |
| Jul 13, 12:20 AM CDT | Tornado Warning | DMX | Emmet | 40 min |
| Jul 19, 2:59 PM CDT | Tornado Warning | ARX | Winneshiek | 76 min |
| Jul 31, 7:59 PM CDT | Tornado Warning | FSD | Lyon | 31 min |
| Jul 31, 8:01 PM CDT | Tornado Warning | FSD | Lyon | 29 min |
| Jul 31, 8:30 PM CDT | Tornado Warning | FSD | Lyon | 30 min |
| Aug 3, 3:48 PM CDT | Tornado Warning | DMX | Greene | 42 min |
| Aug 3, 5:02 PM CDT | Tornado Warning | DMX | Marshall | 43 min |
| Aug 3, 7:47 PM CDT | Tornado Warning | DMX | Madison | 43 min |
| Aug 3, 8:38 PM CDT | Tornado Warning | OAX | Montgomery | 52 min |
| Aug 16, 7:05 PM CDT | Tornado Warning | DMX | Franklin, Hardin | 25 min |
| Aug 16, 7:17 PM CDT | Tornado Warning | DMX | Grundy | 43 min |
| Aug 16, 7:29 PM CDT | Tornado Warning | DMX | Hardin | 16 min |
| Aug 16, 8:01 PM CDT | Tornado Warning | DMX | Grundy | 29 min |
| Aug 18, 5:55 PM CDT | Tornado Warning | DVN | Des Moines | 50 min |
| Aug 26, 3:57 PM CDT | Tornado Warning | DMX | Pocahontas | 48 min |
| Aug 26, 4:48 PM CDT | Tornado Warning | DMX | Humboldt | 42 min |
| Aug 26, 5:04 PM CDT | Tornado Warning | DMX | Wright | 41 min |
| Aug 26, 5:39 PM CDT | Tornado Warning | OAX | Fremont | 51 min |
| Aug 26, 5:46 PM CDT | Tornado Warning | DMX | Wright | 29 min |
| Aug 26, 6:02 PM CDT | Tornado Warning | OAX | Page | 43 min |
| Aug 26, 6:41 PM CDT | Tornado Warning | DMX | Crawford | 49 min |
| Aug 26, 6:41 PM CDT | Tornado Warning | OAX | Page | 34 min |
| Aug 26, 6:52 PM CDT | Tornado Warning | DMX | Taylor | 53 min |
| Aug 26, 6:54 PM CDT | Tornado Warning | DMX | Greene | 51 min |
| Aug 26, 6:55 PM CDT | Tornado Warning | DMX | Sac | 50 min |
| Aug 26, 7:02 PM CDT | Tornado Warning | DMX | Carroll | 43 min |
| Aug 26, 7:10 PM CDT | Tornado Warning | DMX | Boone | 50 min |
| Aug 26, 7:49 PM CDT | Tornado Warning | DMX | Story | 41 min |
| Aug 26, 8:00 PM CDT | Tornado Warning | DMX | Boone | 30 min |
| Aug 26, 8:26 PM CDT | Tornado Warning | DMX | Story | 34 min |
| Aug 26, 8:29 PM CDT | Tornado Warning | DMX | Jasper, Marshall | 46 min |
| Aug 26, 8:36 PM CDT | Tornado Warning | DMX | Butler | 54 min |
| Aug 26, 9:15 PM CDT | Tornado Warning | OAX | Page | 30 min |
| Aug 26, 10:14 PM CDT | Tornado Warning | DVN | Linn | 46 min |
| Aug 26, 10:47 PM CDT | Tornado Warning | DVN | Jones | 43 min |
| Aug 26, 11:00 PM CDT | Tornado Warning | DVN | Delaware, Dubuque | 45 min |
| Sep 5, 3:17 PM CDT | Tornado Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 28 min |
| Sep 5, 3:30 PM CDT | Tornado Warning | FSD | Lyon, Osceola | 45 min |
| Sep 5, 3:32 PM CDT | Tornado Warning | DMX | Crawford | 43 min |
| Sep 5, 3:44 PM CDT | Tornado Warning | FSD | Cherokee, O'Brien | 46 min |
| Sep 5, 4:33 PM CDT | Tornado Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 27 min |
| Sep 5, 4:57 PM CDT | Tornado Warning | FSD | Dickinson | 33 min |
| Sep 5, 6:04 PM CDT | Tornado Warning | DMX | Greene | 26 min |
| Sep 5, 6:27 PM CDT | Tornado Warning | DMX | Boone, Story | 33 min |
| Sep 5, 6:33 PM CDT | Tornado Warning | DMX | Greene, Webster | 27 min |
| Sep 5, 6:37 PM CDT | Tornado Warning | DMX | Madison | 38 min |
| Sep 5, 6:46 PM CDT | Tornado Warning | DMX | Union | 29 min |
| Sep 5, 6:50 PM CDT | Tornado Warning | DMX | Hamilton, Webster | 25 min |
| Sep 5, 6:58 PM CDT | Tornado Warning | DMX | Story | 32 min |
| Sep 5, 7:15 PM CDT | Tornado Warning | DMX | Hamilton, Wright | 30 min |
| Sep 5, 7:16 PM CDT | Tornado Warning | DMX | Madison | 29 min |
| Sep 5, 7:28 PM CDT | Tornado Warning | DMX | Hardin, Story | 47 min |
| Sep 5, 7:39 PM CDT | Tornado Warning | DMX | Warren | 36 min |
| Sep 5, 7:56 PM CDT | Tornado Warning | DMX | Polk | 49 min |
| Sep 5, 8:17 PM CDT | Tornado Warning | DMX | Story | 43 min |
| Sep 5, 8:44 PM CDT | Tornado Warning | DMX | Lucas, Warren | 31 min |
| Sep 5, 8:48 PM CDT | Tornado Warning | DMX | Jasper, Polk | 27 min |
| Sep 5, 9:03 PM CDT | Tornado Warning | DMX | Marshall, Story | 42 min |
| Oct 29, 5:10 PM CDT | Tornado Warning | DMX | Decatur | 35 min |
| Oct 29, 5:21 PM CDT | Tornado Warning | DMX | Clarke | 39 min |
| Oct 29, 7:20 PM CDT | Tornado Warning | DVN | Benton, Iowa | 55 min |
| Oct 29, 9:00 PM CDT | Tornado Warning | DVN | Johnson | 45 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Story County10
- Dallas County9
- Madison County9
- Webster County8
- Polk County7
- Marshall County7
- Warren County7
- Woodbury County6
- Guthrie County6
- Hamilton County6
- Boone County6
- Grundy County5
- Benton County5
- Greene County5
- Jasper County5
- Lyon County5
- Clay County5
- Hardin County4
- Tama County4
- Palo Alto County4
- Wright County4
- Page County4
- Appanoose County4
- Worth County3
- Floyd County3
- Buchanan County3
- Linn County3
- Jones County3
- Humboldt County3
- Plymouth County3
- Adair County3
- Mills County3
- Fremont County3
- Decatur County3
- Sioux County3
- Dubuque County3
- Dickinson County3
- Howard County3
- Crawford County3
- Mitchell County2
44 more counties
- Clinton County2
- Jackson County2
- Black Hawk County2
- Pocahontas County2
- Kossuth County2
- Carroll County2
- Shelby County2
- Marion County2
- Taylor County2
- Monroe County2
- Ringgold County2
- Lee County2
- Sac County2
- Des Moines County2
- Iowa County2
- Johnson County2
- Delaware County2
- Cedar County2
- Emmet County2
- Winneshiek County2
- Montgomery County2
- Fayette County2
- Cherokee County2
- Osceola County2
- O'Brien County2
- Cerro Gordo County1
- Chickasaw County1
- Bremer County1
- Audubon County1
- Harrison County1
- Mahaska County1
- Davis County1
- Wayne County1
- Muscatine County1
- Scott County1
- Buena Vista County1
- Monona County1
- Calhoun County1
- Franklin County1
- Butler County1
- Ida County1
- Union County1
- Lucas County1
- Clarke County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.