Alert archive / Iowa / Mesoscale Discussions

Mesoscale Discussions in Iowa, 2017

128 mesoscale discussions in 2017. 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 2017. Tap one for its archive.

Mesoscale Discussions
128
Busiest month
June30 mesoscale discussions
Busiest day
May 17, 20179 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 15, 9:02 AM CSTMesoscale DiscussionSPCFremont, Page5 hr
Jan 15, 1:59 PM CSTMesoscale DiscussionSPCFremont, Page5 hr
Jan 16, 1:53 PM CSTMesoscale DiscussionSPCClay, Dickinson, Emmet, Howard, Kossuth, Lyon and 6 more5 hr
Jan 24, 4:56 PM CSTMesoscale DiscussionSPCAllamakee, Cerro Gordo, Chickasaw, Clay, Dickinson, Emmet and 11 more5 hr
Feb 23, 6:05 PM CSTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee, Clay and 27 more6 hr
Feb 23, 9:48 PM CSTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 47 more2 hr
Feb 23, 11:54 PM CSTMesoscale DiscussionSPCAllamakee, Bremer, Buena Vista, Butler, Calhoun, Carroll and 33 more6 hr
Feb 28, 2:03 PM CSTMesoscale DiscussionSPCClinton, Des Moines, Henry, Jefferson, Lee, Louisa and 4 more2 hr
Feb 28, 5:24 PM CSTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 7 more96 min
Feb 28, 8:06 PM CSTMesoscale DiscussionSPCDes Moines, Lee84 min
Mar 6, 1:08 PM CSTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 52 more3 hr
Mar 6, 3:35 PM CSTMesoscale DiscussionSPCAdair, Adams, Audubon, Benton, Black Hawk, Boone and 57 more115 min
Mar 6, 6:11 PM CSTMesoscale DiscussionSPCAdair, Adams, Allamakee, Appanoose, Audubon, Benton and 57 more2 hr
Mar 6, 7:42 PM CSTMesoscale DiscussionSPCAllamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 40 more63 min
Mar 6, 8:22 PM CSTMesoscale DiscussionSPCLee2 hr
Mar 19, 11:50 PM CDTMesoscale DiscussionSPCBenton, Cedar, Clinton, Iowa, Jackson, Johnson and 6 more85 min
Mar 23, 10:16 AM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 9 more89 min
Mar 23, 6:28 PM CDTMesoscale DiscussionSPCAllamakee92 min
Apr 9, 3:16 PM CDTMesoscale DiscussionSPCClay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 6 more119 min
Apr 9, 8:06 PM CDTMesoscale DiscussionSPCCerro Gordo, Chickasaw, Floyd, Franklin, Hancock, Howard and 4 more54 min
Apr 9, 10:28 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Clarke, Decatur, Lucas and 9 more2 hr
Apr 10, 1:53 AM CDTMesoscale DiscussionSPCAppanoose, Cedar, Clinton, Davis, Des Moines, Henry and 15 more2 hr
Apr 15, 4:01 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 46 more119 min
Apr 15, 5:06 PM CDTMesoscale DiscussionSPCCedar, Clayton, Clinton, Delaware, Dubuque, Henry and 10 more84 min
Apr 15, 6:22 PM CDTMesoscale DiscussionSPCCherokee, Monona, Plymouth, Woodbury83 min
Apr 15, 7:22 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Benton, Black Hawk, Boone and 35 more53 min
Apr 19, 2:29 PM CDTMesoscale DiscussionSPCCrawford, Fremont, Harrison, Ida, Mills, Monona and 4 more3 hr
Apr 19, 5:30 PM CDTMesoscale DiscussionSPCAudubon, Cass, Fremont, Harrison, Mills, Montgomery and 3 more60 min
Apr 19, 6:55 PM CDTMesoscale DiscussionSPCBoone, Calhoun, Carroll, Cerro Gordo, Crawford, Floyd and 15 more95 min
Apr 19, 10:06 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Buchanan, Butler, Cedar, Clinton and 25 more54 min
May 8, 6:34 PM CDTMesoscale DiscussionSPCCerro Gordo, Emmet, Floyd, Franklin, Hancock, Humboldt and 8 more116 min
May 10, 1:29 AM CDTMesoscale DiscussionSPCFremont, Mills61 min
May 10, 12:05 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Des Moines, Henry, Jefferson, Keokuk and 10 more2 hr
May 10, 3:48 PM CDTMesoscale DiscussionSPCLee87 min
May 15, 9:15 AM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 7 more90 min
May 15, 3:48 PM CDTMesoscale DiscussionSPCBuena Vista, Butler, Calhoun, Carroll, Cerro Gordo, Chickasaw and 16 more87 min
May 15, 7:19 PM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 26 more56 min
May 15, 8:50 PM CDTMesoscale DiscussionSPCClay, Dickinson, Emmet, Kossuth, Mitchell, Osceola and 3 more115 min
May 16, 2:13 AM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Emmet, Hancock and 12 more92 min
May 16, 3:58 PM CDTMesoscale DiscussionSPCAdams, Audubon, Buena Vista, Calhoun, Carroll, Cass and 23 more2 hr
May 16, 7:31 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Benton, Black Hawk, Boone and 59 more59 min
May 16, 9:43 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Calhoun, Carroll, Cass and 16 more62 min
May 16, 11:48 PM CDTMesoscale DiscussionSPCAdair, Allamakee, Black Hawk, Boone, Bremer, Butler and 28 more117 min
May 17, 11:39 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more66 min
May 17, 12:23 PM CDTMesoscale DiscussionSPCAllamakee, Clayton97 min
May 17, 2:25 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Calhoun, Carroll and 32 more65 min
May 17, 2:38 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 15 more97 min
May 17, 3:24 PM CDTMesoscale DiscussionSPCBenton, Buchanan, Cedar, Clinton, Davis, Delaware and 17 more66 min
May 17, 6:05 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 18 more55 min
Jun 2, 5:49 PM CDTMesoscale DiscussionSPCCerro Gordo, Floyd, Hancock, Kossuth, Mitchell, Winnebago and 1 more2 hr
Jun 12, 11:28 AM CDTMesoscale DiscussionSPCAllamakee, Cerro Gordo, Chickasaw, Clay, Dickinson, Emmet and 14 more92 min
Jun 12, 2:22 PM CDTMesoscale DiscussionSPCAllamakee, Cerro Gordo, Chickasaw, Emmet, Floyd, Hancock and 7 more113 min
Jun 13, 3:46 PM CDTMesoscale DiscussionSPCCherokee, Lyon, Monona, O'Brien, Plymouth, Sioux and 1 more2 hr
Jun 13, 7:48 PM CDTMesoscale DiscussionSPCHarrison, Monona87 min
Jun 13, 8:34 PM CDTMesoscale DiscussionSPCCherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 3 more56 min
Jun 13, 9:36 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Crawford and 8 more54 min
Jun 14, 12:06 PM CDTMesoscale DiscussionSPCBenton, Buchanan, Cedar, Clayton, Clinton, Davis and 20 more2 hr
Jun 15, 5:11 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Benton, Black Hawk, Boone and 39 more64 min
Jun 15, 9:33 PM CDTMesoscale DiscussionSPCAdair, Adams, Benton, Black Hawk, Buchanan, Cedar and 32 more57 min
Jun 16, 3:29 PM CDTMesoscale DiscussionSPCAllamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee and 21 more91 min
Jun 16, 6:16 PM CDTMesoscale DiscussionSPCAdams, Cass, Fremont, Harrison, Mills, Monona and 5 more119 min
Jun 16, 6:56 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 31 more64 min
Jun 16, 9:27 PM CDTMesoscale DiscussionSPCAdams, Fremont, Mills, Montgomery, Page, Ringgold and 1 more2 hr
Jun 17, 1:35 AM CDTMesoscale DiscussionSPCCedar, Clinton, Iowa, Jackson, Johnson, Louisa and 2 more115 min
Jun 17, 2:44 PM CDTMesoscale DiscussionSPCAppanoose, Cedar, Clinton, Davis, Des Moines, Henry and 12 more2 hr
Jun 17, 8:17 PM CDTMesoscale DiscussionSPCDes Moines, Henry, Lee, Louisa, Van Buren58 min
Jun 19, 12:44 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Henry, Iowa, Jackson and 8 more3 hr
Jun 20, 2:05 PM CDTMesoscale DiscussionSPCClinton, Des Moines, Scott2 hr
Jun 22, 9:28 AM CDTMesoscale DiscussionSPCCerro Gordo, Chickasaw, Emmet, Floyd, Hancock, Howard and 6 more92 min
Jun 22, 9:09 PM CDTMesoscale DiscussionSPCAdair, Audubon, Benton, Black Hawk, Boone, Bremer and 24 more2 hr
Jun 27, 11:33 PM CDTMesoscale DiscussionSPCCrawford, Fremont, Harrison, Mills, Monona, Pottawattamie and 1 more57 min
Jun 28, 2:14 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 51 more2 hr
Jun 28, 5:29 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 52 more91 min
Jun 28, 7:53 PM CDTMesoscale DiscussionSPCClinton, Dubuque, Jackson, Jones, Linn97 min
Jun 28, 8:39 PM CDTMesoscale DiscussionSPCDecatur, Ringgold, Taylor96 min
Jun 29, 2:26 PM CDTMesoscale DiscussionSPCPlymouth94 min
Jun 29, 3:48 PM CDTMesoscale DiscussionSPCBlack Hawk, Bremer, Buchanan, Butler, Clayton, Delaware and 7 more117 min
Jun 29, 6:08 PM CDTMesoscale DiscussionSPCAudubon, Buena Vista, Carroll, Cass, Cherokee, Clay and 13 more67 min
Jun 29, 9:24 PM CDTMesoscale DiscussionSPCCass, Harrison, Mills, Pottawattamie66 min
Jul 9, 9:10 PM CDTMesoscale DiscussionSPCAllamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 16 more65 min
Jul 9, 11:45 PM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 23 more60 min
Jul 10, 1:49 AM CDTMesoscale DiscussionSPCBenton, Buchanan, Cedar, Clinton, Davis, Delaware and 26 more116 min
Jul 10, 2:43 AM CDTMesoscale DiscussionSPCButler, Franklin, Grundy, Hamilton, Hardin, Jasper and 7 more2 hr
Jul 10, 6:34 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Decatur, Van Buren, Wayne86 min
Jul 11, 1:54 AM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Carroll, Cass, Crawford and 12 more3 hr
Jul 11, 9:49 PM CDTMesoscale DiscussionSPCAllamakee, Clayton, Dubuque, Winneshiek116 min
Jul 12, 3:33 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Clayton and 11 more87 min
Jul 12, 6:19 PM CDTMesoscale DiscussionSPCClayton86 min
Jul 16, 2:06 PM CDTMesoscale DiscussionSPCDes Moines, Lee, Van Buren54 min
Jul 18, 2:19 PM CDTMesoscale DiscussionSPCAllamakee, Cerro Gordo, Chickasaw, Floyd, Hancock, Howard and 5 more116 min
Jul 19, 12:11 PM CDTMesoscale DiscussionSPCBremer, Buena Vista, Butler, Cerro Gordo, Cherokee, Chickasaw and 20 more2 hr
Jul 19, 2:38 PM CDTMesoscale DiscussionSPCAllamakee, Chickasaw, Howard, Winneshiek2 hr
Jul 19, 5:11 PM CDTMesoscale DiscussionSPCBuchanan, Clayton, Clinton, Delaware, Dubuque, Jackson and 1 more34 min
Jul 19, 6:32 PM CDTMesoscale DiscussionSPCAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more58 min
Jul 19, 7:06 PM CDTMesoscale DiscussionSPCLyon, Plymouth, Sioux, Woodbury84 min
Jul 19, 8:19 PM CDTMesoscale DiscussionSPCAllamakee, Cedar, Clayton, Clinton, Delaware, Dubuque and 3 more86 min
Jul 20, 1:16 AM CDTMesoscale DiscussionSPCBenton, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more119 min
Jul 20, 3:57 PM CDTMesoscale DiscussionSPCBoone, Calhoun, Carroll, Crawford, Greene, Hamilton and 8 more2 hr
Jul 21, 1:32 PM CDTMesoscale DiscussionSPCAudubon, Benton, Black Hawk, Boone, Buchanan, Calhoun and 35 more2 hr
Jul 21, 6:28 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Buchanan, Butler, Cedar, Clinton and 27 more92 min
Jul 21, 8:35 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Buchanan, Butler, Cedar, Clinton and 27 more115 min
Jul 21, 11:23 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Buchanan, Butler, Cedar, Clinton and 27 more67 min
Jul 26, 4:55 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Jackson, Jones, Louisa and 2 more65 min
Aug 3, 5:18 PM CDTMesoscale DiscussionSPCClinton, Des Moines, Jackson, Scott2 hr
Aug 10, 2:07 PM CDTMesoscale DiscussionSPCCedar, Clinton, Des Moines, Henry, Jackson, Louisa and 3 more113 min
Aug 10, 5:31 PM CDTMesoscale DiscussionSPCClinton, Des Moines, Henry, Lee, Louisa, Muscatine and 1 more89 min
Aug 13, 7:38 PM CDTMesoscale DiscussionSPCLyon, Sioux97 min
Aug 16, 12:42 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Lee, Monroe, Van Buren, Wapello3 hr
Aug 16, 2:35 PM CDTMesoscale DiscussionSPCBenton, Black Hawk, Bremer, Buchanan, Cedar, Clayton and 18 more2 hr
Aug 18, 2:54 PM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 16 more3 hr
Aug 18, 6:58 PM CDTMesoscale DiscussionSPCAdair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 34 more62 min
Aug 18, 9:00 PM CDTMesoscale DiscussionSPCAdair, Boone, Buena Vista, Calhoun, Carroll, Cerro Gordo and 29 more60 min
Aug 20, 11:14 PM CDTMesoscale DiscussionSPCAdair, Audubon, Boone, Calhoun, Carroll, Cass and 15 more91 min
Aug 21, 11:12 AM CDTMesoscale DiscussionSPCLyon, Plymouth, Sioux93 min
Aug 21, 2:35 PM CDTMesoscale DiscussionSPCAudubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 27 more85 min
Aug 26, 1:35 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Calhoun, Carroll and 18 more2 hr
Sep 20, 3:17 PM CDTMesoscale DiscussionSPCAllamakee, Buchanan, Clayton, Delaware, Dubuque, Fayette118 min
Sep 22, 3:57 PM CDTMesoscale DiscussionSPCLyon, Sioux2 hr
Oct 2, 6:40 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 10 more3 hr
Oct 6, 3:14 PM CDTMesoscale DiscussionSPCAudubon, Calhoun, Carroll, Cass, Crawford, Fremont and 6 more91 min
Oct 6, 8:23 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Cass, Dallas, Fremont and 11 more97 min
Oct 6, 9:54 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Cass, Dallas, Fremont and 11 more96 min
Oct 14, 4:21 AM CDTMesoscale DiscussionSPCAdair, Adams, Cass, Clarke, Fremont, Madison and 8 more84 min
Oct 14, 3:35 PM CDTMesoscale DiscussionSPCAppanoose, Davis, Decatur, Des Moines, Henry, Jefferson and 3 more2 hr
Oct 21, 1:23 PM CDTMesoscale DiscussionSPCAdams, Fremont, Mills, Montgomery, Page, Ringgold and 1 more3 hr
Oct 21, 2:57 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Bremer, Buena Vista and 40 more2 hr
Oct 21, 5:38 PM CDTMesoscale DiscussionSPCAppanoose, Decatur, Ringgold, Taylor, Wayne67 min
Dec 4, 1:26 PM CSTMesoscale DiscussionSPCLee, Van Buren94 min

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. May 17, 20179mesoscale discussions
  2. June 29, 20175mesoscale discussions
  3. July 10, 20175mesoscale discussions
  4. May 16, 20174mesoscale discussions
  5. June 14, 20174mesoscale discussions
  6. June 16, 20174mesoscale discussions
  7. July 19, 20174mesoscale discussions
  8. July 20, 20174mesoscale discussions
  9. February 24, 20173mesoscale discussions
  10. March 7, 20173mesoscale discussions
  11. April 10, 20173mesoscale discussions
  12. April 15, 20173mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20162018

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.