Alert archive / Iowa / Mesoscale Discussions

Mesoscale Discussions in Iowa, 2008

243 mesoscale discussions in 2008. 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 mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in 2008. Tap one for its archive.

Mesoscale Discussions
243
Busiest month
June76 mesoscale discussions
Busiest day
June 5, 200812 mesoscale discussions

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.

IssuedProductOfficeCountiesLasted
Jan 7, 7:26 AM CSTMesoscale DiscussionSPCAppanoose, Benton, Buchanan, Cedar, Clarke, Clinton and 24 more2 hr
Jan 7, 1:47 PM CSTMesoscale DiscussionSPCDes Moines, Lee, Scott58 min
Jan 8, 11:40 AM CSTMesoscale DiscussionSPCCedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 3 more5 hr
Jan 29, 7:39 AM CSTMesoscale DiscussionSPCAudubon, Buena Vista, Calhoun, Carroll, Cass, Cerro Gordo and 37 more5 hr
Jan 29, 12:19 PM CSTMesoscale DiscussionSPCAppanoose, Benton, Cedar, Clinton, Davis, Delaware and 20 more4 hr
Feb 3, 12:10 PM CSTMesoscale DiscussionSPCDavis, Des Moines, Henry, Jefferson, Lee, Louisa and 1 more4 hr
Feb 3, 4:42 PM CSTMesoscale DiscussionSPCClinton, Scott4 hr
Feb 4, 6:14 AM CSTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 53 more5 hr
Feb 5, 5:26 PM CSTMesoscale DiscussionSPCPage, Ringgold, Taylor5 hr
Feb 6, 12:30 AM CSTMesoscale DiscussionSPCAdair, Adams, Appanoose, Benton, Clarke, Dallas and 26 more6 hr
Feb 6, 6:07 AM CSTMesoscale DiscussionSPCAllamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 41 more6 hr
Feb 11, 12:32 PM CSTMesoscale DiscussionSPCCrawford, Harrison, Monona, Woodbury5 hr
Feb 16, 11:34 PM CSTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 25 more5 hr
Feb 17, 7:01 AM CSTMesoscale DiscussionSPCAdams, Allamakee, Appanoose, Benton, Black Hawk, Bremer and 39 more5 hr
Feb 17, 12:13 PM CSTMesoscale DiscussionSPCAllamakee, Appanoose, Benton, Black Hawk, Boone, Bremer and 42 more4 hr
Feb 25, 9:30 AM CSTMesoscale DiscussionSPCAdair, Audubon, Benton, Black Hawk, Boone, Bremer and 51 more6 hr
Mar 2, 2:31 PM CSTMesoscale DiscussionSPCDecatur, Ringgold, Taylor104 min
Mar 2, 5:26 PM CSTMesoscale DiscussionSPCCedar, Clinton, Davis, Des Moines, Dubuque, Henry and 14 more2 hr
Mar 2, 6:55 PM CSTMesoscale DiscussionSPCAdair, Adams, Allamakee, Audubon, Benton, Black Hawk and 39 more6 hr
Mar 21, 4:37 AM CDTMesoscale DiscussionSPCAllamakee, Clayton, Howard, Winneshiek4 hr
Mar 31, 2:30 AM CDTMesoscale DiscussionSPCLyon5 hr
Mar 31, 3:31 AM CDTMesoscale DiscussionSPCAdams, Clarke, Decatur, Ringgold, Taylor, Union and 1 more59 min
Mar 31, 5:59 AM CDTMesoscale DiscussionSPCAdams, Appanoose, Clarke, Decatur, Fremont, Montgomery and 5 more91 min
Mar 31, 9:48 AM CDTMesoscale DiscussionSPCLyon, Osceola6 hr
Mar 31, 1:09 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Decatur, Des Moines, Henry, Jefferson and 5 more2 hr
Apr 10, 6:44 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Cass, Clarke, Davis and 25 more61 min
Apr 21, 11:54 AM CDTMesoscale DiscussionSPCCherokee, Dickinson, Ida, Lyon, Monona, O'Brien and 4 more2 hr
Apr 23, 4:04 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more2 hr
Apr 23, 4:34 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more116 min
Apr 24, 5:34 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Boone, Butler, Calhoun, Carroll and 22 more56 min
Apr 25, 12:55 AM CDTMesoscale DiscussionSPCPage35 min
Apr 25, 2:24 AM CDTMesoscale DiscussionSPCAdair, Adams, Cass, Clarke, Dallas, Decatur and 14 more66 min
Apr 25, 3:18 AM CDTMesoscale DiscussionSPCFremont, Montgomery, Page57 min
Apr 25, 4:22 AM CDTMesoscale DiscussionSPCAppanoose, Benton, Cedar, Clarke, Clinton, Davis and 31 more23 min
Apr 25, 9:10 AM CDTMesoscale DiscussionSPCClinton, Jackson, Scott65 min
Apr 25, 12:21 PM CDTMesoscale DiscussionSPCCedar, Clinton, Davis, Delaware, Des Moines, Henry and 14 more54 min
Apr 25, 3:28 PM CDTMesoscale DiscussionSPCClinton, Louisa, Scott62 min
Apr 25, 5:18 PM CDTMesoscale DiscussionSPCClinton, Louisa, Scott57 min
Apr 25, 6:01 PM CDTMesoscale DiscussionSPCClinton, Louisa, Scott59 min
May 1, 3:28 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Crawford, Harrison, Ida, Lyon and 5 more92 min
May 1, 6:33 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 10 more57 min
May 1, 7:24 PM CDTMesoscale DiscussionSPCDecatur, Ringgold, Wayne66 min
May 1, 7:47 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 5 more88 min
May 1, 10:04 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Boone, Clarke, Dallas and 19 more116 min
May 1, 11:29 PM CDTMesoscale DiscussionSPCAppanoose, Clarke, Davis, Decatur, Jefferson, Keokuk and 10 more91 min
May 2, 11:05 AM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 32 more115 min
May 2, 3:47 PM CDTMesoscale DiscussionSPCAllamakee, Howard, Winneshiek118 min
May 6, 10:56 AM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more94 min
May 6, 2:22 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more113 min
May 6, 6:23 PM CDTMesoscale DiscussionSPCAudubon, Cass, Crawford, Fremont, Harrison, Mills and 4 more2 hr
May 6, 9:13 PM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Audubon, Benton, Black Hawk and 46 more62 min
May 19, 6:21 PM CDTMesoscale DiscussionSPCAdair, Appanoose, Audubon, Boone, Buena Vista, Calhoun and 42 more54 min
May 22, 3:38 AM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more97 min
May 24, 6:07 PM CDTMesoscale DiscussionSPCLyon, Sioux113 min
May 24, 9:01 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 16 more59 min
May 25, 12:43 PM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Boone, Bremer, Butler, Calhoun and 27 more92 min
May 25, 5:08 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Boone, Bremer, Buchanan, Butler and 21 more67 min
May 25, 9:23 PM CDTMesoscale DiscussionSPCAppanoose, Benton, Black Hawk, Buchanan, Cedar, Clarke and 34 more67 min
May 25, 11:28 PM CDTMesoscale DiscussionSPCCedar, Clinton, Davis, Des Moines, Henry, Jefferson and 8 more62 min
May 28, 11:41 PM CDTMesoscale DiscussionSPCLyon, Osceola, Plymouth, Sioux94 min
May 29, 5:32 AM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 12 more118 min
May 29, 5:43 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Bremer, Buchanan, Cedar, Chickasaw and 10 more2 hr
May 29, 5:55 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Monona, Montgomery, Page and 2 more35 min
May 29, 7:37 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Boone, Calhoun and 25 more53 min
May 29, 10:21 PM CDTMesoscale DiscussionSPCPlymouth, Sioux, Woodbury24 min
May 29, 11:34 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 38 more56 min
May 30, 1:37 AM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Monona, Montgomery, Page and 2 more53 min
May 30, 2:17 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Boone and 49 more88 min
May 30, 6:00 AM CDTMesoscale DiscussionSPCAppanoose, Cedar, Clinton, Davis, Des Moines, Henry and 13 more2 hr
May 30, 4:29 PM CDTMesoscale DiscussionSPCDavis, Des Moines, Henry, Jefferson, Lee, Louisa and 3 more61 min
May 31, 6:23 PM CDTMesoscale DiscussionSPCAllamakee, Bremer, Chickasaw, Clayton, Fayette, Floyd and 4 more67 min
Jun 2, 8:02 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Boone, Carroll and 31 more118 min
Jun 3, 3:08 AM CDTMesoscale DiscussionSPCDavis, Des Moines, Henry, Lee, Van Buren97 min
Jun 3, 4:12 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 29 more2 hr
Jun 3, 6:49 AM CDTMesoscale DiscussionSPCAdams, Appanoose, Clarke, Davis, Decatur, Fremont and 24 more86 min
Jun 3, 7:17 AM CDTMesoscale DiscussionSPCLee, Van Buren118 min
Jun 4, 4:09 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Cass, Clarke, Decatur and 12 more66 min
Jun 4, 5:51 PM CDTMesoscale DiscussionSPCCedar, Clinton, Muscatine, Scott84 min
Jun 4, 6:47 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Boone, Carroll and 35 more58 min
Jun 4, 7:55 PM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie65 min
Jun 4, 9:33 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 60 more87 min
Jun 4, 11:14 PM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie, Taylor2 hr
Jun 5, 1:38 AM CDTMesoscale DiscussionSPCAllamakee, Winneshiek3 hr
Jun 5, 3:06 AM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie84 min
Jun 5, 4:11 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Cass, Cedar, Clarke and 33 more94 min
Jun 5, 6:46 AM CDTMesoscale DiscussionSPCCedar, Clinton, Jackson, Johnson, Muscatine, Scott119 min
Jun 5, 10:11 AM CDTMesoscale DiscussionSPCCherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more94 min
Jun 5, 10:35 AM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie85 min
Jun 5, 2:01 PM CDTMesoscale DiscussionSPCDickinson, Emmet, Lyon, Osceola59 min
Jun 5, 5:10 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 39 more95 min
Jun 5, 5:29 PM CDTMesoscale DiscussionSPCLyon91 min
Jun 5, 7:44 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Calhoun, Carroll and 26 more91 min
Jun 6, 3:29 AM CDTMesoscale DiscussionSPCAllamakee, Cedar, Clayton, Delaware, Des Moines, Dubuque and 6 more61 min
Jun 7, 10:35 AM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 26 more85 min
Jun 7, 12:10 PM CDTMesoscale DiscussionSPCBoone, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 16 more95 min
Jun 7, 1:50 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Jackson, Louisa, Muscatine and 1 more55 min
Jun 7, 3:29 PM CDTMesoscale DiscussionSPCAdams, Audubon, Cass, Fremont, Harrison, Mills and 4 more3 hr
Jun 7, 6:34 PM CDTMesoscale DiscussionSPCAllamakee, Audubon, Black Hawk, Boone, Bremer, Butler and 31 more56 min
Jun 7, 10:15 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 12 more90 min
Jun 7, 11:01 PM CDTMesoscale DiscussionSPCMonona, Woodbury59 min
Jun 8, 2:29 AM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Audubon, Benton, Black Hawk and 58 more31 min
Jun 8, 6:39 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 53 more66 min
Jun 8, 12:28 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Cass, Clarke and 26 more2 hr
Jun 8, 3:47 PM CDTMesoscale DiscussionSPCAdair, Adams, Boone, Clarke, Dallas, Decatur and 18 more118 min
Jun 8, 4:32 PM CDTMesoscale DiscussionSPCBenton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more28 min
Jun 8, 10:01 PM CDTMesoscale DiscussionSPCClinton, Des Moines, Jackson, Lee, Louisa, Muscatine and 1 more59 min
Jun 10, 9:47 PM CDTMesoscale DiscussionSPCAllamakee, Cerro Gordo, Chickasaw, Clayton, Fayette, Floyd and 4 more88 min
Jun 10, 11:06 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Pottawattamie54 min
Jun 11, 4:40 AM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 14 more65 min
Jun 11, 6:23 AM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Emmet, Humboldt and 8 more2 hr
Jun 11, 2:03 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 22 more117 min
Jun 11, 5:59 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 35 more91 min
Jun 11, 8:05 PM CDTMesoscale DiscussionSPCBoone, Bremer, Butler, Cerro Gordo, Chickasaw, Clarke and 24 more115 min
Jun 11, 8:57 PM CDTMesoscale DiscussionSPCAudubon, Carroll, Cass, Crawford, Fremont, Harrison and 6 more93 min
Jun 11, 9:58 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Black Hawk, Boone, Bremer and 36 more92 min
Jun 11, 11:41 PM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Appanoose, Benton, Black Hawk and 43 more2 hr
Jun 12, 3:56 AM CDTMesoscale DiscussionSPCAppanoose, Lucas, Marion, Monroe, Wayne94 min
Jun 12, 12:37 PM CDTMesoscale DiscussionSPCAppanoose, Benton, Cedar, Clayton, Clinton, Davis and 18 more113 min
Jun 12, 3:45 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Jackson, Jones, Louisa and 2 more90 min
Jun 12, 3:52 PM CDTMesoscale DiscussionSPCAllamakee, Appanoose, Benton, Buchanan, Cedar, Clarke and 31 more113 min
Jun 12, 6:49 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 5 more86 min
Jun 12, 8:18 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Henry, Lee, Van Buren87 min
Jun 12, 11:15 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Henry, Jackson, Lee and 4 more90 min
Jun 14, 12:35 PM CDTMesoscale DiscussionSPCAudubon, Benton, Black Hawk, Boone, Buchanan, Carroll and 18 more115 min
Jun 14, 5:17 PM CDTMesoscale DiscussionSPCBenton, Cedar, Clayton, Clinton, Delaware, Des Moines and 26 more88 min
Jun 15, 1:02 AM CDTMesoscale DiscussionSPCBenton, Black Hawk, Bremer, Buchanan, Buena Vista, Butler and 14 more58 min
Jun 15, 3:35 AM CDTMesoscale DiscussionSPCBenton, Black Hawk, Buchanan, Cedar, Clinton, Delaware and 7 more55 min
Jun 15, 6:41 AM CDTMesoscale DiscussionSPCCrawford, Harrison, Mills, Monona, Pottawattamie, Shelby64 min
Jun 15, 11:17 AM CDTMesoscale DiscussionSPCDavis, Des Moines, Henry, Jefferson, Lee, Louisa and 2 more88 min
Jun 19, 1:14 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Clarke and 18 more61 min
Jun 19, 6:11 PM CDTMesoscale DiscussionSPCAdams, Cass, Crawford, Fremont, Harrison, Mills and 9 more64 min
Jun 19, 8:32 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Monona, Montgomery, Page and 1 more58 min
Jun 20, 1:54 PM CDTMesoscale DiscussionSPCAdair, Audubon, Benton, Black Hawk, Boone, Buchanan and 42 more96 min
Jun 20, 5:57 PM CDTMesoscale DiscussionSPCAdair, Adams, Cass, Clarke, Fremont, Madison and 6 more63 min
Jun 21, 3:05 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 30 more85 min
Jun 24, 2:02 AM CDTMesoscale DiscussionSPCFremont, Mills88 min
Jun 24, 6:03 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Cass, Clarke, Decatur and 14 more117 min
Jun 25, 5:51 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Benton, Black Hawk, Boone and 39 more84 min
Jun 25, 10:18 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Boone and 51 more87 min
Jun 26, 3:48 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Crawford and 10 more87 min
Jun 26, 5:39 AM CDTMesoscale DiscussionSPCWayne66 min
Jun 26, 7:51 AM CDTMesoscale DiscussionSPCBoone, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 17 more84 min
Jun 26, 9:53 AM CDTMesoscale DiscussionSPCAdair, Audubon, Boone, Carroll, Cass, Clarke and 21 more97 min
Jun 26, 12:05 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Boone, Buena Vista and 45 more55 min
Jun 27, 1:37 PM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie2 hr
Jun 27, 3:41 PM CDTMesoscale DiscussionSPCBremer, Butler, Cerro Gordo, Chickasaw, Dickinson, Emmet and 11 more94 min
Jun 27, 5:33 PM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Appanoose, Audubon, Benton and 59 more87 min
Jul 2, 9:42 AM CDTMesoscale DiscussionSPCCedar, Clinton, Delaware, Dubuque, Jackson, Jones and 1 more2 hr
Jul 2, 1:19 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Monona, Pottawattamie, Shelby116 min
Jul 2, 1:55 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 37 more95 min
Jul 2, 5:59 PM CDTMesoscale DiscussionSPCTaylor61 min
Jul 2, 7:03 PM CDTMesoscale DiscussionSPCCedar, Clinton, Delaware, Dubuque, Iowa, Jackson and 8 more57 min
Jul 6, 5:48 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Clarke, Davis, Decatur and 24 more117 min
Jul 6, 2:36 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 18 more114 min
Jul 6, 5:38 PM CDTMesoscale DiscussionSPCAllamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek2 hr
Jul 6, 6:54 PM CDTMesoscale DiscussionSPCAllamakee, Audubon, Boone, Bremer, Buena Vista, Butler and 36 more66 min
Jul 6, 11:13 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Crawford, Ida and 5 more2 hr
Jul 7, 1:05 PM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Audubon, Benton, Black Hawk and 69 more115 min
Jul 7, 1:36 PM CDTMesoscale DiscussionSPCLyon114 min
Jul 7, 3:14 PM CDTMesoscale DiscussionSPCAllamakee, Audubon, Black Hawk, Boone, Bremer, Buchanan and 32 more91 min
Jul 7, 5:55 PM CDTMesoscale DiscussionSPCAdair, Allamakee, Audubon, Benton, Black Hawk, Boone and 46 more95 min
Jul 7, 7:30 PM CDTMesoscale DiscussionSPCCedar, Clinton, Iowa, Jackson, Johnson, Jones and 2 more30 min
Jul 7, 8:32 PM CDTMesoscale DiscussionSPCBenton, Cedar, Clinton, Iowa, Jackson, Johnson and 3 more88 min
Jul 8, 1:15 AM CDTMesoscale DiscussionSPCDavis, Des Moines, Henry, Lee, Van Buren3 hr
Jul 9, 1:33 PM CDTMesoscale DiscussionSPCAdams, Audubon, Carroll, Cass, Crawford, Fremont and 10 more57 min
Jul 10, 9:36 AM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 24 more84 min
Jul 10, 12:55 PM CDTMesoscale DiscussionSPCCedar, Clayton, Clinton, Delaware, Dubuque, Jackson and 6 more95 min
Jul 10, 1:49 PM CDTMesoscale DiscussionSPCAllamakee, Winneshiek86 min
Jul 10, 3:38 PM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 14 more97 min
Jul 10, 5:52 PM CDTMesoscale DiscussionSPCBenton, Cedar, Clinton, Delaware, Dubuque, Iowa and 9 more83 min
Jul 11, 3:13 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 11 more92 min
Jul 11, 8:29 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 18 more91 min
Jul 11, 10:31 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Clarke and 15 more89 min
Jul 12, 1:52 AM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Appanoose, Benton, Black Hawk and 50 more53 min
Jul 12, 3:26 AM CDTMesoscale DiscussionSPCAudubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 22 more64 min
Jul 16, 3:39 PM CDTMesoscale DiscussionSPCAllamakee, Howard, Winneshiek96 min
Jul 17, 8:55 AM CDTMesoscale DiscussionSPCCerro Gordo, Clay, Dickinson, Emmet, Hancock, Howard and 6 more65 min
Jul 17, 2:19 PM CDTMesoscale DiscussionSPCAllamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 8 more86 min
Jul 17, 5:50 PM CDTMesoscale DiscussionSPCAdair, Audubon, Benton, Black Hawk, Boone, Bremer and 60 more85 min
Jul 17, 6:26 PM CDTMesoscale DiscussionSPCFremont, Mills, Page2 hr
Jul 19, 1:09 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 17 more2 hr
Jul 19, 6:56 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 45 more2 hr
Jul 19, 11:24 PM CDTMesoscale DiscussionSPCDavis, Des Moines, Henry, Jefferson, Lee, Louisa and 2 more96 min
Jul 20, 10:04 AM CDTMesoscale DiscussionSPCAdams, Audubon, Cass, Crawford, Fremont, Harrison and 8 more86 min
Jul 20, 10:17 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Boone and 50 more2 hr
Jul 20, 11:10 PM CDTMesoscale DiscussionSPCHarrison, Monona95 min
Jul 21, 3:10 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 54 more95 min
Jul 21, 4:01 AM CDTMesoscale DiscussionSPCPlymouth, Sioux89 min
Jul 21, 1:48 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Cass, Clarke, Davis and 23 more87 min
Jul 21, 7:16 PM CDTMesoscale DiscussionSPCAppanoose, Decatur, Wayne89 min
Jul 22, 3:18 AM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie, Taylor87 min
Jul 24, 1:46 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Cherokee and 20 more89 min
Jul 24, 11:32 PM CDTMesoscale DiscussionSPCAppanoose, Davis88 min
Jul 25, 8:32 PM CDTMesoscale DiscussionSPCAllamakee, Bremer, Chickasaw, Clayton, Fayette, Floyd and 3 more88 min
Jul 27, 2:25 AM CDTMesoscale DiscussionSPCLyon, O'Brien, Osceola, Sioux95 min
Jul 27, 7:15 AM CDTMesoscale DiscussionSPCLyon, Sioux90 min
Jul 27, 1:02 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 47 more118 min
Jul 27, 6:22 PM CDTMesoscale DiscussionSPCAdair, Benton, Black Hawk, Boone, Bremer, Buchanan and 51 more83 min
Jul 28, 1:23 AM CDTMesoscale DiscussionSPCAdair, Appanoose, Audubon, Boone, Cass, Clarke and 18 more97 min
Jul 28, 5:31 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Clarke and 13 more89 min
Jul 28, 7:26 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Crawford and 8 more94 min
Jul 29, 3:11 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Des Moines, Henry, Jefferson, Lee and 4 more94 min
Jul 30, 7:30 AM CDTMesoscale DiscussionSPCLyon, Sioux90 min
Jul 31, 12:50 AM CDTMesoscale DiscussionSPCLyon85 min
Jul 31, 6:50 AM CDTMesoscale DiscussionSPCAllamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 10 more85 min
Jul 31, 8:03 AM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more87 min
Jul 31, 10:28 AM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more92 min
Jul 31, 3:51 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 23 more84 min
Jul 31, 6:30 PM CDTMesoscale DiscussionSPCAdair, Appanoose, Audubon, Benton, Black Hawk, Boone and 50 more90 min
Aug 2, 10:13 PM CDTMesoscale DiscussionSPCHarrison, Monona, Plymouth, Sioux, Woodbury62 min
Aug 2, 11:28 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more92 min
Aug 3, 2:29 PM CDTMesoscale DiscussionSPCBremer, Cerro Gordo, Chickasaw, Clay, Dickinson, Emmet and 13 more2 hr
Aug 3, 8:38 PM CDTMesoscale DiscussionSPCBuena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 13 more2 hr
Aug 4, 3:51 PM CDTMesoscale DiscussionSPCBenton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 4 more84 min
Aug 4, 6:45 PM CDTMesoscale DiscussionSPCScott90 min
Aug 5, 1:53 AM CDTMesoscale DiscussionSPCAppanoose, Cedar, Clinton, Des Moines, Henry, Iowa and 15 more97 min
Aug 5, 7:07 AM CDTMesoscale DiscussionSPCKeokuk, Louisa, Washington53 min
Aug 13, 4:37 PM CDTMesoscale DiscussionSPCCherokee, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 2 more53 min
Aug 22, 4:54 PM CDTMesoscale DiscussionSPCAudubon, Carroll, Cass, Fremont, Mills, Montgomery and 2 more3 hr
Aug 27, 4:40 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 37 more95 min
Aug 27, 4:48 PM CDTMesoscale DiscussionSPCCherokee, Clay, Dickinson, Emmet, Kossuth, Lyon and 6 more117 min
Aug 27, 10:16 PM CDTMesoscale DiscussionSPCAllamakee, Audubon, Black Hawk, Boone, Bremer, Buena Vista and 44 more119 min
Aug 28, 2:48 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Des Moines, Henry, Jefferson, Lee and 7 more87 min
Sep 2, 1:42 PM CDTMesoscale DiscussionSPCChickasaw, Floyd, Howard, Mitchell, Winneshiek93 min
Sep 23, 12:31 PM CDTMesoscale DiscussionSPCAudubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 21 more119 min
Sep 25, 3:48 AM CDTMesoscale DiscussionSPCCherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 3 more87 min
Sep 29, 12:39 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Carroll, Cass and 17 more96 min
Nov 5, 2:51 PM CSTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Crawford, Dickinson, Harrison and 9 more114 min
Nov 5, 2:55 PM CSTMesoscale DiscussionSPCFremont, Mills, Pottawattamie65 min
Nov 5, 7:08 PM CSTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Crawford and 9 more97 min
Nov 10, 7:19 PM CSTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more4 hr
Nov 11, 6:51 AM CSTMesoscale DiscussionSPCAllamakee, Winneshiek4 hr
Dec 8, 7:12 PM CSTMesoscale DiscussionSPCBenton, Black Hawk, Boone, Bremer, Buchanan, Butler and 17 more2 hr
Dec 8, 11:43 PM CSTMesoscale DiscussionSPCBenton, Black Hawk, Buchanan, Cedar, Clinton, Davis and 24 more2 hr
Dec 14, 5:47 PM CSTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Henry, Jackson, Lee and 4 more4 hr
Dec 18, 11:35 AM CSTMesoscale DiscussionSPCFremont, Page6 hr
Dec 18, 6:37 PM CSTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 18 more5 hr
Dec 18, 6:46 PM CSTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 56 more6 hr
Dec 18, 11:38 PM CSTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Buena Vista, Butler and 38 more4 hr
Dec 19, 12:45 AM CSTMesoscale DiscussionSPCDes Moines, Henry, Lee, Louisa, Muscatine, Scott4 hr
Dec 19, 11:21 PM CSTMesoscale DiscussionSPCLyon4 hr
Dec 26, 11:15 PM CSTMesoscale DiscussionSPCAppanoose, Davis, Des Moines, Henry, Jefferson, Keokuk and 6 more90 min
Dec 27, 9:41 AM CSTMesoscale DiscussionSPCAllamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 28 more3 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

59 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 5, 200812mesoscale discussions
  2. April 25, 20089mesoscale discussions
  3. June 12, 20089mesoscale discussions
  4. May 30, 20087mesoscale discussions
  5. June 8, 20087mesoscale discussions
  6. May 2, 20086mesoscale discussions
  7. June 11, 20086mesoscale discussions
  8. June 26, 20086mesoscale discussions
  9. July 31, 20086mesoscale discussions
  10. March 31, 20085mesoscale discussions
  11. June 3, 20085mesoscale discussions
  12. June 7, 20085mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20072009

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.