Alert archive / Iowa / Tornado Watches
Tornado Watches in Iowa, 2021
10 tornado watches in 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 watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Tornado Watches
- 10
- Busiest month
- June3 tornado watches
- Busiest day
- June 24, 20212 tornado watches
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 10, 2:46 PM CST | Tornado Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 28 more | 5 hr |
| Jun 24, 3:44 PM CDT | Tornado Watch | SPC | Fremont, Page | 5 hr |
| Jun 24, 6:33 PM CDT | Tornado Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 6 more | 3 hr |
| Jun 24, 11:47 PM CDT | Tornado Watch | SPC | Des Moines, Henry, Lee | 4 hr |
| Jul 14, 2:35 PM CDT | Tornado Watch | SPC | Audubon, Benton, Black Hawk, Boone, Bremer, Buchanan and 41 more | 8 hr |
| Jul 14, 6:13 PM CDT | Tornado Watch | SPC | Allamakee, Cedar, Clayton, Clinton, Delaware, Dubuque and 7 more | 6 hr |
| Aug 11, 12:17 PM CDT | Tornado Watch | SPC | Allamakee, Clayton | 8 hr |
| Aug 27, 5:15 PM CDT | Tornado Watch | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 12 more | 6 hr |
| Dec 15, 1:23 PM CST | Tornado Watch | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 64 more | 7 hr |
| Dec 15, 5:30 PM CST | Tornado Watch | SPC | Allamakee, Benton, Buchanan, Cedar, Chickasaw, Clayton and 23 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allamakee County5
- Bremer County4
- Butler County4
- Cerro Gordo County4
- Chickasaw County4
- Fayette County4
- Floyd County4
- Franklin County4
- Hancock County4
- Humboldt County4
- Kossuth County4
- Winnebago County4
- Winneshiek County4
- Worth County4
- Wright County4
- Clayton County4
- Benton County3
- Black Hawk County3
- Boone County3
- Buchanan County3
- Dallas County3
- Grundy County3
- Hamilton County3
- Hardin County3
- Howard County3
- Iowa County3
- Jasper County3
- Marshall County3
- Mitchell County3
- Palo Alto County3
- Polk County3
- Poweshiek County3
- Story County3
- Tama County3
- Webster County3
- Fremont County2
- Page County2
- Adams County2
- Appanoose County2
- Clarke County2
59 more counties
- Davis County2
- Decatur County2
- Lucas County2
- Monroe County2
- Ringgold County2
- Taylor County2
- Union County2
- Wapello County2
- Wayne County2
- Des Moines County2
- Henry County2
- Lee County2
- Audubon County2
- Buena Vista County2
- Calhoun County2
- Carroll County2
- Cherokee County2
- Clay County2
- Crawford County2
- Emmet County2
- Greene County2
- Guthrie County2
- Harrison County2
- Ida County2
- Monona County2
- Pocahontas County2
- Sac County2
- Shelby County2
- Woodbury County2
- Cedar County2
- Clinton County2
- Delaware County2
- Dubuque County2
- Jackson County2
- Johnson County2
- Jones County2
- Linn County2
- Muscatine County2
- Scott County2
- Adair County1
- Cass County1
- Dickinson County1
- Lyon County1
- Madison County1
- Mahaska County1
- Marion County1
- Mills County1
- Montgomery County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Pottawattamie County1
- Sioux County1
- Warren County1
- Jefferson County1
- Keokuk County1
- Louisa County1
- Van Buren County1
- Washington County1
The busiest days
Days with the most alerts issued, by UTC date.
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.