Alert archive / Iowa / Severe Thunderstorm Watches / 1998
Severe Thunderstorm Watches in Iowa, May 1998
17 severe thunderstorm 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in May 1998. Tap one for its archive.
- Severe Thunderstorm Watches
- 17
- Busiest day
- May 19, 19983 severe thunderstorm 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 12, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Clayton, Fayette, Winneshiek | 6 hr |
| May 12, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Benton, Cedar, Clinton, Davis, Des Moines and 16 more | 6 hr |
| May 15, 7:45 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Cass and 26 more | 4 hr |
| May 15, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cerro Gordo and 33 more | 5 hr |
| May 19, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Clinton, Dubuque, Jackson, Scott | 5 hr |
| May 19, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 47 more | 6 hr |
| May 19, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Louisa | 6 hr |
| May 20, 1:45 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 33 more | 6 hr |
| May 21, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | Fremont, Page, Taylor | 5 hr |
| May 21, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Clarke, Davis, Decatur, Henry, Jefferson and 9 more | 6 hr |
| May 22, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Lee | 5 hr |
| May 23, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 65 more | 6 hr |
| May 28, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 45 more | 5 hr |
| May 28, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Cedar, Clayton, Clinton, Delaware, Dubuque and 4 more | 7 hr |
| May 28, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | Monona, Woodbury | 7 hr |
| May 28, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Cedar and 36 more | 6 hr |
| May 30, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 31 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Appanoose County7
- Boone County7
- Greene County7
- Story County7
- Davis County6
- Mahaska County6
- Wapello County6
- Audubon County6
- Clarke County6
- Dallas County6
- Decatur County6
- Guthrie County6
- Lucas County6
- Marion County6
- Marshall County6
- Monroe County6
- Polk County6
- Taylor County6
- Warren County6
- Wayne County6
- Carroll County6
- Benton County5
- Cedar County5
- Des Moines County5
- Adair County5
- Adams County5
- Cass County5
- Fremont County5
- Grundy County5
- Jasper County5
- Madison County5
- Page County5
- Ringgold County5
- Shelby County5
- Union County5
- Calhoun County5
- Hamilton County5
- Hardin County5
- Webster County5
- Tama County5
59 more counties
- Allamakee County4
- Clayton County4
- Henry County4
- Iowa County4
- Jefferson County4
- Jones County4
- Keokuk County4
- Lee County4
- Linn County4
- Louisa County4
- Muscatine County4
- Van Buren County4
- Harrison County4
- Mills County4
- Montgomery County4
- Pottawattamie County4
- Cerro Gordo County4
- Crawford County4
- Emmet County4
- Franklin County4
- Hancock County4
- Humboldt County4
- Kossuth County4
- Monona County4
- Palo Alto County4
- Pocahontas County4
- Sac County4
- Winnebago County4
- Worth County4
- Wright County4
- Black Hawk County4
- Delaware County4
- Poweshiek County4
- Fayette County3
- Winneshiek County3
- Clinton County3
- Jackson County3
- Johnson County3
- Scott County3
- Washington County3
- Buena Vista County3
- Cherokee County3
- Clay County3
- Dickinson County3
- Ida County3
- O'Brien County3
- Osceola County3
- Dubuque County3
- Buchanan County3
- Bremer County3
- Butler County3
- Chickasaw County3
- Floyd County3
- Howard County3
- Mitchell County3
- Woodbury County2
- Lyon County1
- Plymouth County1
- Sioux 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.