Alert archive / Iowa / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Iowa, 1998
52 severe thunderstorm watches in 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 1998. Tap one for its archive.
- Severe Thunderstorm Watches
- 52
- Busiest month
- May17 severe thunderstorm watches
- Busiest day
- March 30, 19983 severe thunderstorm 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 29, 10:45 PM CST | Severe Thunderstorm Watch | SPC | Crawford, Fremont, Harrison, Mills, Montgomery, Page and 3 more | 6 hr |
| Mar 30, 2:45 PM CST | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 12 more | 6 hr |
| Mar 30, 3:45 PM CST | Severe Thunderstorm Watch | SPC | Appanoose, Cedar, Clinton, Davis, Decatur, Des Moines and 18 more | 5 hr |
| Apr 6, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 40 more | 7 hr |
| Apr 12, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Fremont and 13 more | 6 hr |
| Apr 13, 4:00 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Clarke, Davis, Decatur and 15 more | 6 hr |
| Apr 25, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Crawford and 10 more | 5 hr |
| 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 |
| Jun 11, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Lee | 7 hr |
| Jun 18, 12:15 AM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Crawford, Fremont, Harrison, Ida, Mills and 7 more | 6 hr |
| Jun 18, 2:10 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Appanoose, Benton, Black Hawk and 47 more | 6 hr |
| Jun 18, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 7 more | 5 hr |
| Jun 20, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Delaware, Dubuque, Iowa, Jackson and 4 more | 6 hr |
| Jun 23, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 23 more | 6 hr |
| Jun 24, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 29 more | 6 hr |
| Jun 24, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 5 more | 6 hr |
| Jun 25, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Clinton, Jackson, Jones | 5 hr |
| Jun 27, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 38 more | 4 hr |
| Jun 28, 12:30 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Buchanan, Cedar, Clinton, Delaware and 23 more | 5 hr |
| Jun 29, 12:30 AM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Decatur, Fremont, Lee, Page and 4 more | 6 hr |
| Jul 6, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | Lyon | 6 hr |
| Jul 6, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 34 more | 6 hr |
| Jul 15, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Buena Vista, Butler, Calhoun and 41 more | 4 hr |
| Jul 17, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Cass, Clarke, Crawford and 18 more | 7 hr |
| Jul 18, 10:30 PM CDT | Severe Thunderstorm Watch | SPC | Bremer, Buena Vista, Butler, Cerro Gordo, Chickasaw, Emmet and 14 more | 6 hr |
| Jul 19, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 10 more | 6 hr |
| Jul 20, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Chickasaw, Clayton and 5 more | 5 hr |
| Jul 21, 6:15 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 21 more | 6 hr |
| Jul 21, 9:00 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 9 more | 4 hr |
| Aug 24, 7:45 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Butler, Calhoun, Cerro Gordo, Cherokee, Clay and 26 more | 5 hr |
| Aug 24, 10:15 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 17 more | 6 hr |
| Aug 24, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Buchanan, Cedar, Clinton, Delaware, Des Moines, Dubuque and 12 more | 5 hr |
| Sep 25, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 6 hr |
| Sep 25, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 17 more | 7 hr |
| Sep 26, 6:00 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Boone, Bremer, Butler, Calhoun and 25 more | 6 hr |
| Oct 17, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Cass, Clarke, Dallas and 18 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Shelby County17
- Fremont County16
- Page County16
- Delaware County16
- Decatur County16
- Marion County16
- Guthrie County16
- Taylor County16
- Harrison County15
- Mills County15
- Pottawattamie County15
- Black Hawk County15
- Lucas County15
- Mahaska County15
- Wayne County15
- Audubon County15
- Grundy County15
- Buchanan County14
- Cedar County14
- Adair County14
- Adams County14
- Clarke County14
- Dallas County14
- Madison County14
- Marshall County14
- Polk County14
- Ringgold County14
- Story County14
- Warren County14
- Crawford County13
- Montgomery County13
- Benton County13
- Clinton County13
- Dubuque County13
- Jones County13
- Linn County13
- Appanoose County13
- Monroe County13
- Poweshiek County13
- Boone County13
59 more counties
- Calhoun County13
- Carroll County13
- Cass County13
- Greene County13
- Hamilton County13
- Hardin County13
- Jasper County13
- Tama County13
- Union County13
- Webster County13
- Sac County12
- Allamakee County12
- Fayette County12
- Iowa County12
- Jackson County12
- Bremer County11
- Butler County11
- Clayton County11
- Johnson County11
- Washington County11
- Davis County11
- Des Moines County11
- Scott County11
- Wapello County11
- Ida County11
- Monona County11
- Cherokee County11
- Hancock County11
- Floyd County11
- Jefferson County10
- Muscatine County10
- Van Buren County10
- Woodbury County10
- Buena Vista County10
- Pocahontas County10
- Winneshiek County10
- Cerro Gordo County10
- Franklin County10
- Humboldt County10
- Wright County10
- Chickasaw County10
- Mitchell County10
- Henry County9
- Keokuk County9
- Lee County9
- Louisa County9
- O'Brien County9
- Plymouth County9
- Kossuth County9
- Palo Alto County9
- Winnebago County9
- Worth County9
- Howard County9
- Clay County8
- Osceola County8
- Emmet County8
- Dickinson County7
- Lyon County7
- Sioux County6
The busiest days
Days with the most alerts issued, by UTC date.
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.