Alert archive / Iowa / Tornado Watches / 2004
Tornado Watches in Iowa, April 2004
4 tornado watches in April 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 watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in April 2004. Tap one for its archive.
- Tornado Watches
- 4
- Busiest day
- April 18, 20042 tornado watches
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 |
|---|---|---|---|---|
| Apr 17, 10:05 PM CDT | Tornado Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 19 more | 5 hr |
| Apr 18, 4:40 PM CDT | Tornado Watch | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 29 more | 5 hr |
| Apr 18, 9:45 PM CDT | Tornado Watch | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 49 more | 4 hr |
| Apr 20, 5:40 PM CDT | Tornado Watch | SPC | Scott | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hancock County3
- Humboldt County3
- Worth County3
- Wright County3
- Allamakee County2
- Black Hawk County2
- Bremer County2
- Buchanan County2
- Butler County2
- Cerro Gordo County2
- Chickasaw County2
- Clayton County2
- Delaware County2
- Emmet County2
- Fayette County2
- Floyd County2
- Franklin County2
- Howard County2
- Kossuth County2
- Mitchell County2
- Palo Alto County2
- Pocahontas County2
- Winnebago County2
- Winneshiek County2
- Audubon County2
- Calhoun County2
- Carroll County2
- Cass County2
- Crawford County2
- Fremont County2
- Greene County2
- Harrison County2
- Mills County2
- Montgomery County2
- Pottawattamie County2
- Shelby County2
- Webster County2
- Dubuque County1
- Buena Vista County1
- Cherokee County1
35 more counties
- Clay County1
- Dickinson County1
- Ida County1
- Lyon County1
- Monona County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Sac County1
- Sioux County1
- Woodbury County1
- Adair County1
- Adams County1
- Benton County1
- Boone County1
- Clarke County1
- Dallas County1
- Grundy County1
- Guthrie County1
- Hamilton County1
- Hardin County1
- Jasper County1
- Madison County1
- Marion County1
- Marshall County1
- Page County1
- Polk County1
- Poweshiek County1
- Ringgold County1
- Story County1
- Tama County1
- Taylor County1
- Union County1
- Warren County1
- Scott County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.