Alert archive / Iowa / Tornado Warnings
Tornado Warnings in Iowa, 1998
147 tornado warnings in 1998. 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 1998. Tap one for its archive.
- Tornado Warnings
- 147
- Busiest month
- May62 tornado warnings
- Busiest day
- June 29, 199821 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 |
|---|---|---|---|---|
| Mar 30, 8:18 PM CST | Tornado Warning | DVN | Clinton | 47 min |
| Mar 30, 8:33 PM CST | Tornado Warning | DVN | Jackson | 47 min |
| Apr 6, 6:24 PM CDT | Tornado Warning | DMX | Calhoun, Webster | 31 min |
| Apr 6, 6:32 PM CDT | Tornado Warning | DMX | Greene | 33 min |
| Apr 6, 6:56 PM CDT | Tornado Warning | DMX | Boone, Webster | 34 min |
| Apr 6, 7:32 PM CDT | Tornado Warning | OAX | Mills | 33 min |
| Apr 6, 7:36 PM CDT | Tornado Warning | DMX | Boone, Hamilton, Webster | 34 min |
| Apr 6, 8:06 PM CDT | Tornado Warning | OAX | Mills, Pottawattamie | 29 min |
| Apr 6, 8:13 PM CDT | Tornado Warning | DMX | Boone, Greene | 32 min |
| Apr 7, 4:30 PM CDT | Tornado Warning | DVN | Lee | 35 min |
| Apr 7, 5:05 PM CDT | Tornado Warning | DVN | Lee | 35 min |
| Apr 14, 9:50 PM CDT | Tornado Warning | OAX | Page | 30 min |
| Apr 15, 10:53 PM CDT | Tornado Warning | DVN | Benton, Buchanan, Linn | 47 min |
| May 8, 6:36 PM CDT | Tornado Warning | DVN | Linn | 64 min |
| May 15, 10:03 AM CDT | Tornado Warning | OAX | Shelby | 47 min |
| May 15, 10:11 AM CDT | Tornado Warning | DMX | Crawford | 34 min |
| May 15, 12:27 PM CDT | Tornado Warning | OAX | Pottawattamie, Shelby | 33 min |
| May 15, 1:09 PM CDT | Tornado Warning | DMX | Calhoun | 36 min |
| May 15, 1:38 PM CDT | Tornado Warning | DMX | Kossuth | 32 min |
| May 15, 2:38 PM CDT | Tornado Warning | DMX | Kossuth | 22 min |
| May 15, 3:37 PM CDT | Tornado Warning | DMX | Wright | 33 min |
| May 15, 4:13 PM CDT | Tornado Warning | DMX | Wapello | 32 min |
| May 15, 4:24 PM CDT | Tornado Warning | DMX | Calhoun, Pocahontas | 36 min |
| May 15, 4:24 PM CDT | Tornado Warning | FSD | Sioux | 31 min |
| May 15, 4:34 PM CDT | Tornado Warning | DVN | Keokuk | 36 min |
| May 15, 4:48 PM CDT | Tornado Warning | DVN | Jefferson | 37 min |
| May 15, 5:03 PM CDT | Tornado Warning | DVN | Washington | 47 min |
| May 15, 5:28 PM CDT | Tornado Warning | DVN | Johnson | 47 min |
| May 15, 5:39 PM CDT | Tornado Warning | DVN | Cedar | 51 min |
| May 15, 5:43 PM CDT | Tornado Warning | DVN | Muscatine | 32 min |
| May 15, 6:22 PM CDT | Tornado Warning | DVN | Jones | 48 min |
| May 15, 6:44 PM CDT | Tornado Warning | DVN | Jackson | 51 min |
| May 15, 6:49 PM CDT | Tornado Warning | DVN | Cedar | 21 min |
| May 15, 7:07 PM CDT | Tornado Warning | DVN | Dubuque | 38 min |
| May 19, 4:11 PM CDT | Tornado Warning | DMX | Polk | 34 min |
| May 19, 4:23 PM CDT | Tornado Warning | DMX | Jasper | 32 min |
| May 19, 4:34 PM CDT | Tornado Warning | DMX | Marion, Polk | 36 min |
| May 19, 4:53 PM CDT | Tornado Warning | DMX | Marion | 32 min |
| May 21, 7:50 PM CDT | Tornado Warning | OAX | Harrison, Monona | 50 min |
| May 21, 8:47 PM CDT | Tornado Warning | OAX | Pottawattamie | 33 min |
| May 28, 3:14 PM CDT | Tornado Warning | DMX | Pocahontas | 36 min |
| May 28, 3:28 PM CDT | Tornado Warning | FSD | Buena Vista | 37 min |
| May 28, 3:28 PM CDT | Tornado Warning | FSD | Buena Vista | 17 min |
| May 28, 3:49 PM CDT | Tornado Warning | DMX | Pocahontas | 31 min |
| May 28, 4:44 PM CDT | Tornado Warning | DMX | Wright | 21 min |
| May 28, 5:50 PM CDT | Tornado Warning | ARX | Allamakee, Winneshiek | 60 min |
| May 28, 6:37 PM CDT | Tornado Warning | DVN | Buchanan, Delaware | 48 min |
| May 28, 7:04 PM CDT | Tornado Warning | DVN | Linn | 51 min |
| May 28, 7:12 PM CDT | Tornado Warning | FSD | Cherokee | 33 min |
| May 28, 7:20 PM CDT | Tornado Warning | FSD | Plymouth, Woodbury | 30 min |
| May 28, 7:52 PM CDT | Tornado Warning | FSD | Plymouth, Woodbury | 33 min |
| May 28, 8:26 PM CDT | Tornado Warning | FSD | Woodbury | 34 min |
| May 28, 8:40 PM CDT | Tornado Warning | OAX | Monona | 60 min |
| May 28, 9:04 PM CDT | Tornado Warning | FSD | Woodbury | 31 min |
| May 28, 9:22 PM CDT | Tornado Warning | DMX | Crawford | 33 min |
| May 28, 9:40 PM CDT | Tornado Warning | OAX | Monona | 45 min |
| May 28, 9:52 PM CDT | Tornado Warning | DMX | Crawford | 33 min |
| May 28, 10:18 PM CDT | Tornado Warning | OAX | Harrison | 62 min |
| May 28, 10:21 PM CDT | Tornado Warning | DMX | Carroll, Crawford | 39 min |
| May 28, 10:21 PM CDT | Tornado Warning | DMX | Carroll, Crawford | 34 min |
| May 28, 10:54 PM CDT | Tornado Warning | OAX | Shelby | 61 min |
| May 28, 11:04 PM CDT | Tornado Warning | DMX | Carroll | 36 min |
| May 28, 11:10 PM CDT | Tornado Warning | DMX | Audubon | 35 min |
| May 28, 11:25 PM CDT | Tornado Warning | DMX | Greene, Guthrie | 35 min |
| May 28, 11:44 PM CDT | Tornado Warning | DMX | Audubon, Guthrie | 36 min |
| May 28, 11:59 PM CDT | Tornado Warning | DMX | Dallas, Guthrie | 51 min |
| May 29, 12:24 AM CDT | Tornado Warning | DMX | Guthrie | 26 min |
| May 30, 12:46 PM CDT | Tornado Warning | DMX | Calhoun, Greene | 34 min |
| May 30, 1:25 PM CDT | Tornado Warning | DMX | Boone | 35 min |
| May 30, 1:50 PM CDT | Tornado Warning | DMX | Boone | 50 min |
| May 30, 2:20 PM CDT | Tornado Warning | DMX | Marshall | 50 min |
| May 30, 3:08 PM CDT | Tornado Warning | DMX | Marshall | 22 min |
| May 30, 3:08 PM CDT | Tornado Warning | DMX | Marshall | 17 min |
| May 31, 1:36 AM CDT | Tornado Warning | ARX | Clayton, Fayette | 34 min |
| May 31, 1:45 AM CDT | Tornado Warning | DVN | Delaware | 50 min |
| Jun 11, 10:39 PM CDT | Tornado Warning | OAX | Fremont | 36 min |
| Jun 11, 11:15 PM CDT | Tornado Warning | OAX | Page | 35 min |
| Jun 14, 2:35 PM CDT | Tornado Warning | DMX | Davis | 45 min |
| Jun 14, 4:00 PM CDT | Tornado Warning | DVN | Lee | 65 min |
| Jun 18, 1:56 PM CDT | Tornado Warning | DMX | Warren | 34 min |
| Jun 18, 2:16 PM CDT | Tornado Warning | DMX | Polk | 34 min |
| Jun 18, 3:20 PM CDT | Tornado Warning | ARX | Chickasaw | 50 min |
| Jun 18, 3:38 PM CDT | Tornado Warning | ARX | Howard | 47 min |
| Jun 18, 4:18 PM CDT | Tornado Warning | ARX | Winneshiek | 42 min |
| Jun 18, 4:22 PM CDT | Tornado Warning | ARX | Howard | 33 min |
| Jun 18, 4:25 PM CDT | Tornado Warning | ARX | Clayton | 65 min |
| Jun 23, 7:19 PM CDT | Tornado Warning | FSD | Woodbury | 31 min |
| Jun 23, 7:24 PM CDT | Tornado Warning | OAX | Monona | 51 min |
| Jun 23, 7:50 PM CDT | Tornado Warning | FSD | Woodbury | 35 min |
| Jun 23, 8:16 PM CDT | Tornado Warning | FSD | Woodbury | 34 min |
| Jun 23, 8:17 PM CDT | Tornado Warning | OAX | Monona | 33 min |
| Jun 23, 8:23 PM CDT | Tornado Warning | FSD | Plymouth | 32 min |
| Jun 23, 8:39 PM CDT | Tornado Warning | FSD | Sioux | 31 min |
| Jun 23, 9:47 PM CDT | Tornado Warning | DMX | Sac | 33 min |
| Jun 23, 9:52 PM CDT | Tornado Warning | DMX | Calhoun | 33 min |
| Jun 23, 10:21 PM CDT | Tornado Warning | OAX | Harrison, Monona | 29 min |
| Jun 24, 2:19 AM CDT | Tornado Warning | DVN | Delaware | 66 min |
| Jun 24, 2:34 AM CDT | Tornado Warning | ARX | Clayton | 36 min |
| Jun 24, 2:45 AM CDT | Tornado Warning | DVN | Dubuque | 65 min |
| Jun 27, 3:48 PM CDT | Tornado Warning | FSD | Lyon | 32 min |
| Jun 27, 4:24 PM CDT | Tornado Warning | FSD | Lyon, Osceola | 31 min |
| Jun 27, 4:58 PM CDT | Tornado Warning | FSD | Osceola | 47 min |
| Jun 27, 5:16 PM CDT | Tornado Warning | FSD | Dickinson | 34 min |
| Jun 27, 5:49 PM CDT | Tornado Warning | FSD | Dickinson | 31 min |
| Jun 27, 7:27 PM CDT | Tornado Warning | DMX | Worth | 33 min |
| Jun 27, 7:41 PM CDT | Tornado Warning | DMX | Cerro Gordo | 34 min |
| Jun 27, 8:07 PM CDT | Tornado Warning | ARX | Howard, Winneshiek | 53 min |
| Jun 27, 8:15 PM CDT | Tornado Warning | DMX | Franklin | 35 min |
| Jun 27, 8:49 PM CDT | Tornado Warning | DMX | Cerro Gordo | 21 min |
| Jun 27, 10:08 PM CDT | Tornado Warning | DMX | Butler | 32 min |
| Jun 27, 10:38 PM CDT | Tornado Warning | DMX | Bremer, Butler | 32 min |
| Jun 29, 12:32 PM CDT | Tornado Warning | DMX | Hamilton | 33 min |
| Jun 29, 12:41 PM CDT | Tornado Warning | DMX | Crawford | 49 min |
| Jun 29, 12:45 PM CDT | Tornado Warning | OAX | Shelby | 35 min |
| Jun 29, 1:23 PM CDT | Tornado Warning | DMX | Boone, Dallas | 32 min |
| Jun 29, 1:32 PM CDT | Tornado Warning | DMX | Polk | 33 min |
| Jun 29, 1:48 PM CDT | Tornado Warning | DMX | Dallas, Madison | 47 min |
| Jun 29, 2:18 PM CDT | Tornado Warning | DMX | Tama | 32 min |
| Jun 29, 2:23 PM CDT | Tornado Warning | DMX | Marion | 32 min |
| Jun 29, 2:24 PM CDT | Tornado Warning | DVN | Benton, Iowa | 36 min |
| Jun 29, 2:42 PM CDT | Tornado Warning | DVN | Keokuk | 33 min |
| Jun 29, 2:53 PM CDT | Tornado Warning | DVN | Johnson | 62 min |
| Jun 29, 2:55 PM CDT | Tornado Warning | DVN | Washington | 65 min |
| Jun 29, 3:07 PM CDT | Tornado Warning | DVN | Cedar, Muscatine | 63 min |
| Jun 29, 3:07 PM CDT | Tornado Warning | DVN | Henry, Louisa | 63 min |
| Jun 29, 3:07 PM CDT | Tornado Warning | DVN | Van Buren | 63 min |
| Jun 29, 3:10 PM CDT | Tornado Warning | DMX | Davis | 35 min |
| Jun 29, 3:22 PM CDT | Tornado Warning | DVN | Des Moines, Lee | 63 min |
| Jun 29, 3:25 PM CDT | Tornado Warning | DMX | Dallas | 50 min |
| Jun 29, 3:40 PM CDT | Tornado Warning | DMX | Polk | 35 min |
| Jun 29, 3:47 PM CDT | Tornado Warning | DMX | Warren | 33 min |
| Jun 29, 6:03 PM CDT | Tornado Warning | DVN | Lee | 62 min |
| Jul 6, 6:25 PM CDT | Tornado Warning | FSD | Woodbury | 30 min |
| Jul 6, 6:34 PM CDT | Tornado Warning | OAX | Monona | 61 min |
| Jul 6, 6:49 PM CDT | Tornado Warning | OAX | Harrison | 61 min |
| Jul 6, 7:22 PM CDT | Tornado Warning | DMX | Carroll | 33 min |
| Jul 6, 9:35 PM CDT | Tornado Warning | DMX | Polk | 35 min |
| Jul 6, 10:00 PM CDT | Tornado Warning | DMX | Marion | 35 min |
| Jul 9, 6:07 PM CDT | Tornado Warning | FSD | Woodbury | 33 min |
| Jul 20, 3:32 PM CDT | Tornado Warning | ARX | Howard | 63 min |
| Jul 20, 4:07 PM CDT | Tornado Warning | ARX | Winneshiek | 53 min |
| Aug 24, 8:20 AM CDT | Tornado Warning | DMX | Palo Alto | 35 min |
| Aug 24, 9:22 AM CDT | Tornado Warning | FSD | Sioux | 48 min |
| Aug 24, 10:24 AM CDT | Tornado Warning | DMX | Black Hawk | 31 min |
| Aug 24, 10:49 PM CDT | Tornado Warning | DVN | Jackson | 36 min |
| Aug 24, 11:09 PM CDT | Tornado Warning | DVN | Clinton | 51 min |
| Oct 14, 3:49 PM CDT | Tornado Warning | DMX | Marshall | 16 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Woodbury County9
- Monona County7
- Boone County6
- Crawford County6
- Polk County6
- Calhoun County5
- Lee County5
- Greene County4
- Shelby County4
- Marion County4
- Harrison County4
- Winneshiek County4
- Carroll County4
- Guthrie County4
- Dallas County4
- Marshall County4
- Howard County4
- Jackson County3
- Webster County3
- Pottawattamie County3
- Linn County3
- Pocahontas County3
- Sioux County3
- Cedar County3
- Delaware County3
- Plymouth County3
- Clayton County3
- Clinton County2
- Mills County2
- Hamilton County2
- Page County2
- Benton County2
- Buchanan County2
- Kossuth County2
- Wright County2
- Keokuk County2
- Washington County2
- Johnson County2
- Muscatine County2
- Dubuque County2
31 more counties
- Buena Vista County2
- Audubon County2
- Davis County2
- Warren County2
- Lyon County2
- Osceola County2
- Dickinson County2
- Cerro Gordo County2
- Butler County2
- Wapello County1
- Jefferson County1
- Jones County1
- Jasper County1
- Allamakee County1
- Cherokee County1
- Fayette County1
- Fremont County1
- Chickasaw County1
- Sac County1
- Worth County1
- Franklin County1
- Bremer County1
- Madison County1
- Tama County1
- Iowa County1
- Henry County1
- Louisa County1
- Van Buren County1
- Des Moines County1
- Palo Alto County1
- Black Hawk County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19971999
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.