Alert archive / Illinois / Mesoscale Discussions / 2003

Mesoscale Discussions in Illinois, July 2003

76 mesoscale discussions in July 2003. 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 July 2003. Tap one for its archive.

Mesoscale Discussions
76
Busiest day
July 6, 20039 mesoscale discussions

Over time

By day

Days in UTC, the clock the archive keeps.

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
Jul 4, 3:27 AM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Grundy and 12 more93 min
Jul 4, 7:25 AM CDTMesoscale DiscussionSPCCook, Lake, McHenry95 min
Jul 4, 12:48 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 26 more117 min
Jul 4, 3:29 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Ford, Iroquois, Kankakee and 4 more2 hr
Jul 4, 5:07 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 27 more53 min
Jul 4, 6:29 PM CDTMesoscale DiscussionSPCBureau, Champaign, Clark, Coles, DeWitt, Douglas and 29 more61 min
Jul 4, 8:58 PM CDTMesoscale DiscussionSPCDuPage, Grundy, Iroquois, Kane, Kankakee, Kendall and 1 more62 min
Jul 4, 10:09 PM CDTMesoscale DiscussionSPCBrown, Cass, Champaign, DeWitt, Douglas, Ford and 20 more2 hr
Jul 4, 10:45 PM CDTMesoscale DiscussionSPCJo Daviess, Rock Island90 min
Jul 5, 2:31 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more89 min
Jul 5, 5:43 AM CDTMesoscale DiscussionSPCCook, Kankakee, Lake, Will92 min
Jul 5, 12:55 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 14 more3 hr
Jul 5, 4:34 PM CDTMesoscale DiscussionSPCChampaign, Ford, Iroquois, Vermilion56 min
Jul 5, 5:18 PM CDTMesoscale DiscussionSPCCass, DeWitt, Fulton, Hancock, Henderson, Henry and 16 more57 min
Jul 5, 7:20 PM CDTMesoscale DiscussionSPCEdgar, Iroquois, Vermilion55 min
Jul 5, 7:51 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 40 more54 min
Jul 5, 10:46 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 33 more59 min
Jul 6, 5:17 AM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson, Whiteside118 min
Jul 6, 7:45 AM CDTMesoscale DiscussionSPCBoone, DeKalb, DuPage, Kane, Lake, McHenry2 hr
Jul 6, 9:48 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 34 more117 min
Jul 6, 12:36 PM CDTMesoscale DiscussionSPCCook, Kankakee114 min
Jul 6, 2:00 PM CDTMesoscale DiscussionSPCBoone, Brown, Cass, Champaign, Christian, Coles and 35 more2 hr
Jul 6, 5:28 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Christian, Coles and 45 more62 min
Jul 6, 8:46 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Ford, Grundy and 10 more59 min
Jul 7, 1:25 AM CDTMesoscale DiscussionSPCJo Daviess, Stephenson, Winnebago95 min
Jul 7, 4:22 AM CDTMesoscale DiscussionSPCJo Daviess, Stephenson83 min
Jul 7, 6:23 AM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Grundy, Henry, Kendall and 9 more97 min
Jul 7, 8:30 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Ford, Grundy, Iroquois and 13 more60 min
Jul 7, 10:14 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Iroquois, McLean, Piatt and 1 more61 min
Jul 7, 12:14 PM CDTMesoscale DiscussionSPCBond, Brown, Cass, Champaign, Christian, Clark and 42 more61 min
Jul 7, 2:35 PM CDTMesoscale DiscussionSPCBoone, Jo Daviess, McHenry, Stephenson, Winnebago115 min
Jul 7, 4:34 PM CDTMesoscale DiscussionSPCIroquois, Kankakee, Vermilion, Will56 min
Jul 7, 7:16 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Henry and 9 more3 hr
Jul 7, 10:18 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more57 min
Jul 7, 11:50 PM CDTMesoscale DiscussionSPCIroquois, Vermilion85 min
Jul 8, 8:50 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more115 min
Jul 8, 12:25 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 4 more95 min
Jul 8, 12:59 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more91 min
Jul 8, 1:21 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 25 more24 min
Jul 8, 3:40 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 41 more95 min
Jul 8, 6:46 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, DeWitt, Douglas and 14 more3 hr
Jul 8, 8:59 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 36 more2 hr
Jul 9, 2:21 AM CDTMesoscale DiscussionSPCBond, Cass, Champaign, Christian, Clark, Clay and 27 more114 min
Jul 9, 9:54 AM CDTMesoscale DiscussionSPCBureau, Champaign, Christian, Clark, Coles, Crawford and 28 more96 min
Jul 9, 12:34 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Clinton, Effingham and 17 more56 min
Jul 9, 1:35 PM CDTMesoscale DiscussionSPCChampaign, Coles, Douglas, Edgar, Ford, Grundy and 4 more55 min
Jul 9, 3:12 PM CDTMesoscale DiscussionSPCClark, Edgar, Kankakee33 min
Jul 9, 5:04 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 18 more86 min
Jul 9, 5:38 PM CDTMesoscale DiscussionSPCBureau, Fulton, Hancock, Henderson, Henry, Knox and 12 more97 min
Jul 9, 8:04 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 50 more56 min
Jul 9, 10:49 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 30 more56 min
Jul 9, 11:39 PM CDTMesoscale DiscussionSPCCalhoun, Jersey66 min
Jul 15, 2:40 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 42 more3 hr
Jul 17, 1:29 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more91 min
Jul 17, 6:42 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Grundy, Henderson and 19 more2 hr
Jul 17, 11:41 PM CDTMesoscale DiscussionSPCBureau, Champaign, Ford, Grundy, Henry, Iroquois and 12 more94 min
Jul 18, 2:01 AM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Cumberland, DeWitt, Douglas and 13 more59 min
Jul 18, 2:26 AM CDTMesoscale DiscussionSPCHenderson, Knox, Mercer, Rock Island, Warren3 hr
Jul 18, 6:15 AM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Clinton and 18 more60 min
Jul 18, 9:06 AM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Clinton, Franklin, Greene and 16 more84 min
Jul 18, 3:23 PM CDTMesoscale DiscussionSPCAdams, Calhoun, Jersey, Monroe, Pike, Randolph97 min
Jul 18, 7:34 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Monroe, Randolph56 min
Jul 20, 6:23 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more97 min
Jul 20, 8:08 PM CDTMesoscale DiscussionSPCBureau, Carroll, Fulton, Hancock, Henderson, Henry and 15 more2 hr
Jul 20, 9:48 PM CDTMesoscale DiscussionSPCBoone, Bureau, Cook, DeKalb, DuPage, Grundy and 12 more117 min
Jul 20, 11:14 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, DeWitt, Ford and 29 more2 hr
Jul 21, 1:56 AM CDTMesoscale DiscussionSPCChampaign, Douglas, Edgar, Ford, Iroquois, Macon and 2 more2 hr
Jul 21, 4:12 AM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Effingham, Franklin, Hamilton and 7 more2 hr
Jul 21, 3:26 PM CDTMesoscale DiscussionSPCCook94 min
Jul 27, 10:44 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 19 more91 min
Jul 27, 2:29 PM CDTMesoscale DiscussionSPCCook, DuPage, Ford, Grundy, Iroquois, Kankakee and 7 more91 min
Jul 28, 5:02 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Jackson, Johnson, Massac, Monroe and 7 more118 min
Jul 30, 2:06 PM CDTMesoscale DiscussionSPCJo Daviess114 min
Jul 30, 6:22 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Mercer, Ogle and 4 more113 min
Jul 31, 2:38 PM CDTMesoscale DiscussionSPCJo Daviess2 hr
Jul 31, 5:07 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 5 more53 min

By county

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

62 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20022004

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.