Alert archive / Iowa / Tornado Warnings / 2021
Tornado Warnings in Iowa, July 2021
36 tornado warnings in July 2021. 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 July 2021. Tap one for its archive.
- Tornado Warnings
- 36
- Busiest day
- July 14, 202122 tornado 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 |
|---|---|---|---|---|
| Jul 10, 4:36 PM CDT | Tornado Warning | DMX | Dallas, Guthrie | 24 min |
| Jul 10, 5:00 PM CDT | Tornado Warning | DMX | Dallas | 30 min |
| Jul 14, 3:55 PM CDT | Tornado Warning | DMX | Calhoun, Carroll, Greene | 35 min |
| Jul 14, 4:04 PM CDT | Tornado Warning | DMX | Boone, Hamilton, Story, Webster | 41 min |
| Jul 14, 4:23 PM CDT | Tornado Warning | DMX | Franklin, Hamilton, Hardin, Wright | 37 min |
| Jul 14, 4:29 PM CDT | Tornado Warning | DMX | Calhoun, Greene, Webster | 31 min |
| Jul 14, 4:29 PM CDT | Tornado Warning | DMX | Hamilton, Hardin | 31 min |
| Jul 14, 4:30 PM CDT | Tornado Warning | DMX | Butler | 30 min |
| Jul 14, 4:35 PM CDT | Tornado Warning | DMX | Franklin, Hardin | 40 min |
| Jul 14, 4:53 PM CDT | Tornado Warning | DMX | Bremer, Butler | 37 min |
| Jul 14, 4:56 PM CDT | Tornado Warning | DMX | Hamilton, Hardin | 25 min |
| Jul 14, 5:00 PM CDT | Tornado Warning | DMX | Hamilton, Hardin, Story | 25 min |
| Jul 14, 5:23 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer, Butler | 37 min |
| Jul 14, 5:33 PM CDT | Tornado Warning | ARX | Floyd | 42 min |
| Jul 14, 5:50 PM CDT | Tornado Warning | DMX | Cerro Gordo | 25 min |
| Jul 14, 5:53 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer | 37 min |
| Jul 14, 5:58 PM CDT | Tornado Warning | DMX | Calhoun | 47 min |
| Jul 14, 6:00 PM CDT | Tornado Warning | ARX | Fayette | 45 min |
| Jul 14, 6:02 PM CDT | Tornado Warning | DMX | Black Hawk, Grundy, Marshall, Tama | 43 min |
| Jul 14, 6:09 PM CDT | Tornado Warning | ARX | Chickasaw, Floyd | 52 min |
| Jul 14, 6:25 PM CDT | Tornado Warning | DVN | Buchanan | 50 min |
| Jul 14, 6:42 PM CDT | Tornado Warning | DMX | Webster | 36 min |
| Jul 14, 6:55 PM CDT | Tornado Warning | DMX | Tama | 19 min |
| Jul 14, 6:58 PM CDT | Tornado Warning | DVN | Benton | 47 min |
| Jul 14, 7:28 PM CDT | Tornado Warning | DVN | Buchanan, Delaware | 17 min |
| Jul 14, 7:43 PM CDT | Tornado Warning | DVN | Benton | 32 min |
| Jul 14, 7:43 PM CDT | Tornado Warning | DVN | Buchanan, Delaware | 32 min |
| Jul 14, 7:53 PM CDT | Tornado Warning | DVN | Benton | 27 min |
| Jul 14, 8:10 PM CDT | Tornado Warning | DMX | Marshall | 35 min |
| Jul 14, 8:19 PM CDT | Tornado Warning | DVN | Benton, Linn | 22 min |
| Jul 14, 8:31 PM CDT | Tornado Warning | DVN | Benton, Linn | 29 min |
| Jul 14, 8:56 PM CDT | Tornado Warning | DVN | Delaware, Linn | 49 min |
| Jul 14, 9:29 PM CDT | Tornado Warning | DVN | Delaware, Jones | 46 min |
| Jul 14, 10:02 PM CDT | Tornado Warning | DVN | Jones | 43 min |
| Jul 14, 10:34 PM CDT | Tornado Warning | DVN | Cedar | 26 min |
| Jul 30, 10:12 PM CDT | Tornado Warning | OAX | Page | 18 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hamilton County5
- Hardin County5
- Benton County5
- Delaware County4
- Calhoun County3
- Webster County3
- Butler County3
- Bremer County3
- Black Hawk County3
- Buchanan County3
- Linn County3
- Dallas County2
- Greene County2
- Story County2
- Franklin County2
- Floyd County2
- Marshall County2
- Tama County2
- Jones County2
- Guthrie County1
- Carroll County1
- Boone County1
- Wright County1
- Cerro Gordo County1
- Fayette County1
- Grundy County1
- Chickasaw County1
- Cedar County1
- Page County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.