Alert archive / Iowa / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Iowa, 2007
49 severe thunderstorm watches in 2007. 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 2007. Tap one for its archive.
- Severe Thunderstorm Watches
- 49
- Busiest month
- August16 severe thunderstorm watches
- Busiest day
- June 21, 20075 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 21, 10:24 AM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Benton, Black Hawk, Buchanan, Cedar, Clarke and 31 more | 5 hr |
| Mar 21, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 34 more | 7 hr |
| Mar 21, 10:24 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 4 more | 4 hr |
| Apr 2, 9:22 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 46 more | 8 hr |
| Apr 3, 12:03 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 24 more | 7 hr |
| Apr 3, 4:19 AM CDT | Severe Thunderstorm Watch | SPC | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 6 hr |
| Apr 22, 1:17 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 52 more | 8 hr |
| Apr 30, 4:44 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 5 hr |
| May 6, 4:40 AM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Clarke, Dallas, Davis, Decatur, Jasper and 10 more | 4 hr |
| May 14, 4:27 PM CDT | Severe Thunderstorm Watch | SPC | Harrison, Mills, Monona, Pottawattamie, Shelby | 7 hr |
| May 23, 1:27 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page | 7 hr |
| May 23, 2:58 PM CDT | Severe Thunderstorm Watch | SPC | Chickasaw, Floyd, Howard, Mitchell | 6 hr |
| May 23, 3:11 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 43 more | 6 hr |
| Jun 10, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 8 hr |
| Jun 21, 4:27 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Howard, Mitchell, Winneshiek | 8 hr |
| Jun 21, 9:38 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 hr |
| Jun 21, 11:59 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 36 more | 8 hr |
| Jun 21, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Cass, Cedar, Clarke and 26 more | 3 hr |
| Jun 21, 6:47 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Cedar, Clayton, Clinton, Davis, Delaware and 18 more | 4 hr |
| Jun 22, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 51 more | 7 hr |
| Jun 22, 2:56 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 6 hr |
| Jul 17, 4:37 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 3 hr |
| Jul 17, 9:31 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cedar and 13 more | 6 hr |
| Jul 18, 2:09 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Boone, Bremer, Buena Vista, Butler, Calhoun and 33 more | 4 hr |
| Jul 18, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 41 more | 6 hr |
| Jul 18, 8:39 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Ida, Monona, Plymouth, Woodbury | 7 hr |
| Jul 18, 10:39 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Black Hawk, Boone, Calhoun, Carroll and 23 more | 5 hr |
| Jul 18, 11:07 PM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more | 4 hr |
| Aug 4, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 50 more | 6 hr |
| Aug 7, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Cass, Cedar, Clarke and 32 more | 6 hr |
| Aug 9, 10:14 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Fremont, Harrison, Ida, Mills, Monona and 6 more | 6 hr |
| Aug 10, 12:28 PM CDT | Severe Thunderstorm Watch | SPC | Plymouth, Sioux, Woodbury | 5 hr |
| Aug 11, 9:57 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Howard, Mitchell, Winneshiek | 5 hr |
| Aug 12, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 16 more | 7 hr |
| Aug 13, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 11 more | 6 hr |
| Aug 14, 2:45 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 12 more | 4 hr |
| Aug 15, 7:52 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Bremer, Buchanan, Cedar, Clayton and 15 more | 5 hr |
| Aug 20, 8:10 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 50 more | 5 hr |
| Aug 21, 8:14 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Buchanan, Chickasaw, Clayton, Delaware, Dubuque and 5 more | 8 hr |
| Aug 22, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 6 hr |
| Aug 23, 5:49 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 13 more | 6 hr |
| Aug 23, 7:10 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 5 hr |
| Aug 28, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Boone, Calhoun, Carroll, Cerro Gordo, Crawford and 17 more | 5 hr |
| Aug 28, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Black Hawk, Boone, Buena Vista, Calhoun, Carroll and 25 more | 4 hr |
| Sep 6, 6:19 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 7 hr |
| Sep 17, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 5 hr |
| Sep 21, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allamakee, Benton, Black Hawk, Boone, Bremer and 26 more | 4 hr |
| Sep 24, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | Bremer, Butler, Cerro Gordo, Chickasaw, Emmet, Floyd and 11 more | 5 hr |
| Sep 24, 7:48 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Black Hawk County15
- Mahaska County15
- Marion County15
- Monroe County15
- Polk County15
- Poweshiek County15
- Story County15
- Wapello County15
- Warren County15
- Davis County14
- Iowa County14
- Jasper County14
- Johnson County14
- Keokuk County14
- Lucas County14
- Dallas County14
- Madison County14
- Appanoose County13
- Cedar County13
- Grundy County13
- Louisa County13
- Marshall County13
- Muscatine County13
- Tama County13
- Washington County13
- Boone County13
- Hamilton County13
- Hardin County13
- Buchanan County12
- Clarke County12
- Delaware County12
- Dubuque County12
- Jefferson County12
- Linn County12
- Van Buren County12
- Wayne County12
- Guthrie County12
- Humboldt County12
- Pottawattamie County12
- Shelby County12
59 more counties
- Wright County12
- Bremer County12
- Howard County12
- Mitchell County12
- Decatur County11
- Des Moines County11
- Henry County11
- Jones County11
- Lee County11
- Adair County11
- Audubon County11
- Calhoun County11
- Franklin County11
- Fremont County11
- Harrison County11
- Mills County11
- Montgomery County11
- Page County11
- Pocahontas County11
- Webster County11
- Butler County11
- Chickasaw County11
- Clayton County11
- Scott County11
- Benton County10
- Adams County10
- Carroll County10
- Cass County10
- Greene County10
- Ida County10
- Sac County10
- Union County10
- Allamakee County10
- Clinton County10
- Fayette County10
- Floyd County10
- Winneshiek County10
- Buena Vista County9
- Cerro Gordo County9
- Crawford County9
- Hancock County9
- Monona County9
- Taylor County9
- Ringgold County9
- Jackson County9
- Cherokee County8
- Kossuth County8
- Palo Alto County8
- Worth County8
- Woodbury County8
- Plymouth County8
- Emmet County7
- Winnebago County7
- Sioux County7
- Clay County6
- O'Brien County6
- Dickinson County5
- Lyon County5
- Osceola County5
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.