Alert archive / Iowa / Tornado Watches / 1998
Tornado Watches in Iowa, May 1998
9 tornado watches in May 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 watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in May 1998. Tap one for its archive.
- Tornado Watches
- 9
- Busiest day
- May 15, 19982 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 |
|---|---|---|---|---|
| May 11, 8:00 PM CDT | Tornado Watch | SPC | Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 19 more | 6 hr |
| May 15, 3:00 PM CDT | Tornado Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 72 more | 6 hr |
| May 15, 5:00 PM CDT | Tornado Watch | SPC | Allamakee, Buchanan, Cedar, Clayton, Clinton, Delaware and 14 more | 6 hr |
| May 21, 11:30 PM CDT | Tornado Watch | SPC | Adair, Adams, Cass, Fremont, Harrison, Madison and 8 more | 6 hr |
| May 28, 4:00 PM CDT | Tornado Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 45 more | 5 hr |
| May 28, 8:45 PM CDT | Tornado Watch | SPC | Audubon, Benton, Black Hawk, Boone, Bremer, Buchanan and 40 more | 6 hr |
| May 30, 1:00 PM CDT | Tornado Watch | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 31 more | 4 hr |
| May 30, 8:30 PM CDT | Tornado Watch | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 33 more | 7 hr |
| May 31, 12:00 AM CDT | Tornado Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 20 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Greene County6
- Harrison County6
- Franklin County6
- Buena Vista County5
- Calhoun County5
- Carroll County5
- Cherokee County5
- Crawford County5
- Guthrie County5
- Ida County5
- Monona County5
- Pocahontas County5
- Sac County5
- Shelby County5
- Benton County5
- Black Hawk County5
- Boone County5
- Bremer County5
- Butler County5
- Cerro Gordo County5
- Chickasaw County5
- Floyd County5
- Grundy County5
- Hamilton County5
- Hardin County5
- Humboldt County5
- Marshall County5
- Story County5
- Tama County5
- Webster County5
- Wright County5
- Buchanan County5
- Clayton County5
- Delaware County5
- Fayette County5
- Linn County5
- Audubon County4
- Woodbury County4
- Dallas County4
- Hancock County4
59 more counties
- Iowa County4
- Jasper County4
- Kossuth County4
- Polk County4
- Poweshiek County4
- Cedar County4
- Jones County4
- Adair County3
- Adams County3
- Cass County3
- Fremont County3
- Mills County3
- Montgomery County3
- Page County3
- Plymouth County3
- Pottawattamie County3
- Taylor County3
- Clay County3
- Dickinson County3
- Emmet County3
- O'Brien County3
- Osceola County3
- Palo Alto County3
- Winnebago County3
- Allamakee County3
- Dubuque County3
- Johnson County3
- Winneshiek County3
- Howard County2
- Keokuk County2
- Lyon County2
- Madison County2
- Mahaska County2
- Mitchell County2
- Ringgold County2
- Sioux County2
- Union County2
- Worth County2
- Clinton County2
- Jackson County2
- Louisa County2
- Scott County2
- Washington County2
- Appanoose County1
- Clarke County1
- Davis County1
- Decatur County1
- Jefferson County1
- Lucas County1
- Marion County1
- Monroe County1
- Van Buren County1
- Wapello County1
- Warren County1
- Wayne County1
- Des Moines County1
- Henry County1
- Lee County1
- Muscatine County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.