Alert archive / Iowa / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Iowa, 1997
39 severe thunderstorm watches in 1997. 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 1997. Tap one for its archive.
- Severe Thunderstorm Watches
- 39
- Busiest month
- June15 severe thunderstorm watches
- Busiest day
- June 20, 19974 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 |
|---|---|---|---|---|
| Apr 5, 2:30 PM CST | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 36 more | 5 hr |
| May 7, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 22 more | 5 hr |
| May 7, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Clarke, Davis, Decatur, Des Moines, Henry and 22 more | 6 hr |
| May 16, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 44 more | 6 hr |
| May 23, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills | 6 hr |
| Jun 5, 12:30 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Audubon, Benton, Black Hawk, Boone, Bremer and 37 more | 6 hr |
| Jun 15, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Clayton, Delaware, Dubuque | 5 hr |
| Jun 15, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | Page | 6 hr |
| Jun 19, 9:30 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 21 more | 5 hr |
| Jun 20, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 21 more | 5 hr |
| Jun 20, 4:15 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Audubon, Benton, Black Hawk, Boone, Bremer and 53 more | 6 hr |
| Jun 20, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 6 more | 5 hr |
| Jun 20, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 33 more | 6 hr |
| Jun 20, 11:45 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 20 more | 4 hr |
| Jun 21, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 54 more | 6 hr |
| Jun 21, 2:15 AM CDT | Severe Thunderstorm Watch | SPC | Clinton, Jackson, Scott | 5 hr |
| Jun 22, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Bremer, Butler, Calhoun, Cerro Gordo, Chickasaw and 21 more | 5 hr |
| Jun 24, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Appanoose, Audubon, Benton and 71 more | 6 hr |
| Jun 24, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Pottawattamie | 6 hr |
| Jun 28, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Bremer, Butler, Calhoun, Cerro Gordo, Chickasaw and 20 more | 6 hr |
| Jul 13, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 17 more | 6 hr |
| Jul 13, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Cass, Clarke, Dallas and 13 more | 4 hr |
| Jul 18, 10:30 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Chickasaw, Clayton and 7 more | 6 hr |
| Jul 19, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 42 more | 5 hr |
| Jul 24, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 3 more | 6 hr |
| Jul 25, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Dickinson, Lyon, O'Brien, Osceola, Sioux | 4 hr |
| Jul 26, 11:00 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 12 more | 6 hr |
| Jul 27, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Henry, Johnson, Jones and 6 more | 6 hr |
| Aug 3, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Bremer, Buchanan, Cedar, Clayton and 27 more | 6 hr |
| Aug 14, 8:15 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Crawford, Harrison, Ida, Monona and 3 more | 5 hr |
| Aug 15, 12:15 AM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Henry, Jefferson, Keokuk, Lee and 10 more | 5 hr |
| Aug 16, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 14 more | 6 hr |
| Aug 16, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 10 more | 6 hr |
| Aug 24, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Des Moines, Henry, Jasper, Jefferson and 10 more | 6 hr |
| Sep 16, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Appanoose, Audubon, Benton and 53 more | 6 hr |
| Sep 16, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Davis, Des Moines, Dubuque, Henry and 10 more | 6 hr |
| Sep 16, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Dubuque | 6 hr |
| Sep 18, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 19 more | 7 hr |
| Sep 19, 11:00 AM CDT | Severe Thunderstorm Watch | SPC | Buchanan, Cedar, Clayton, Clinton, Delaware, Des Moines and 11 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Greene County14
- Bremer County13
- Buchanan County13
- Clayton County13
- Fayette County13
- Humboldt County13
- Kossuth County13
- Palo Alto County13
- Delaware County12
- Grundy County12
- Hancock County12
- Johnson County12
- Linn County12
- Poweshiek County12
- Webster County12
- Benton County11
- Black Hawk County11
- Cerro Gordo County11
- Chickasaw County11
- Dubuque County11
- Emmet County11
- Hardin County11
- Henry County11
- Howard County11
- Iowa County11
- Louisa County11
- Marshall County11
- Washington County11
- Winneshiek County11
- Worth County11
- Wright County11
- Boone County11
- Carroll County11
- Polk County11
- Jasper County11
- Calhoun County11
- Pocahontas County11
- Butler County10
- Floyd County10
- Franklin County10
59 more counties
- Jones County10
- Mitchell County10
- Tama County10
- Winnebago County10
- Audubon County10
- Crawford County10
- Dallas County10
- Guthrie County10
- Story County10
- Hamilton County10
- Allamakee County10
- Buena Vista County10
- Clay County10
- Des Moines County9
- Muscatine County9
- Scott County9
- Clarke County9
- Decatur County9
- Ringgold County9
- Union County9
- Warren County9
- Jefferson County9
- Keokuk County9
- Mahaska County9
- Cherokee County9
- Dickinson County9
- O'Brien County9
- Cedar County8
- Adair County8
- Cass County8
- Fremont County8
- Harrison County8
- Monona County8
- Page County8
- Pottawattamie County8
- Taylor County8
- Lucas County8
- Marion County8
- Monroe County8
- Van Buren County8
- Wapello County8
- Wayne County8
- Sac County8
- Lyon County8
- Osceola County8
- Plymouth County8
- Sioux County8
- Clinton County7
- Jackson County7
- Adams County7
- Madison County7
- Mills County7
- Montgomery County7
- Shelby County7
- Appanoose County7
- Davis County7
- Lee County7
- Ida County7
- Woodbury County7
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19961998
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.