Alert archive / Illinois / Mesoscale Discussions / 2004

Mesoscale Discussions in Illinois, July 2004

47 mesoscale discussions in July 2004. 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 2004. Tap one for its archive.

Mesoscale Discussions
47
Busiest day
July 6, 20049 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 3, 11:38 AM CDTMesoscale DiscussionSPCBureau, Champaign, Clark, Coles, Cook, Crawford and 38 more2 hr
Jul 3, 2:44 PM CDTMesoscale DiscussionSPCCook, DuPage, Grundy, Kane, Kankakee, Kendall and 1 more2 hr
Jul 3, 6:16 PM CDTMesoscale DiscussionSPCChampaign, Clark, Crawford, Edgar, Ford, Iroquois and 4 more119 min
Jul 4, 11:24 AM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Cumberland, Edwards and 22 more3 hr
Jul 4, 3:04 PM CDTMesoscale DiscussionSPCClay, Edwards, Gallatin, Hamilton, Lawrence, Richland and 3 more116 min
Jul 5, 9:12 AM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 34 more63 min
Jul 5, 12:08 PM CDTMesoscale DiscussionSPCEdwards, Hardin, Lawrence, Richland, Wabash67 min
Jul 5, 3:00 PM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Mercer and 3 more60 min
Jul 5, 3:43 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Jackson, Jersey, Madison and 5 more92 min
Jul 5, 6:30 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Jo Daviess, Mercer, Rock Island and 1 more60 min
Jul 5, 7:05 PM CDTMesoscale DiscussionSPCBond, Calhoun, Greene, Jersey, Macoupin, Madison and 2 more55 min
Jul 5, 9:29 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henderson, Henry, Jo Daviess, Lee and 8 more61 min
Jul 5, 11:14 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 13 more91 min
Jul 5, 11:44 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clark, Clay, Clinton, Coles and 26 more91 min
Jul 6, 9:00 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 28 more60 min
Jul 6, 11:01 AM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Crawford, Cumberland and 29 more59 min
Jul 6, 2:34 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more56 min
Jul 6, 2:53 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 33 more37 min
Jul 6, 5:37 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Pulaski, Union53 min
Jul 6, 8:03 PM CDTMesoscale DiscussionSPCVermilion57 min
Jul 9, 2:15 PM CDTMesoscale DiscussionSPCGrundy, Iroquois, Kankakee, Will2 hr
Jul 9, 4:26 PM CDTMesoscale DiscussionSPCFulton, Hancock, Henderson, Knox, Logan, McDonough and 10 more94 min
Jul 9, 7:16 PM CDTMesoscale DiscussionSPCCass, Champaign, Clark, Coles, DeWitt, Douglas and 23 more2 hr
Jul 10, 1:53 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Clark, Coles, Crawford and 14 more3 hr
Jul 11, 10:14 AM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, DuPage, Ford, Fulton and 24 more91 min
Jul 11, 5:19 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clinton, Coles and 18 more116 min
Jul 13, 10:32 AM CDTMesoscale DiscussionSPCBureau, Carroll, Ford, Grundy, Henry, Iroquois and 14 more118 min
Jul 13, 1:39 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Ford, Fulton and 27 more66 min
Jul 13, 2:30 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 6 more2 hr
Jul 13, 5:00 PM CDTMesoscale DiscussionSPCBond, Christian, Clay, Crawford, Cumberland, Edwards and 15 more2 hr
Jul 13, 7:36 PM CDTMesoscale DiscussionSPCGallatin, Hamilton, Hardin, Wayne, White114 min
Jul 13, 11:13 PM CDTMesoscale DiscussionSPCAlexander, Clark, Clay, Coles, Crawford, Cumberland and 28 more2 hr
Jul 16, 10:51 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more2 hr
Jul 16, 2:45 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more90 min
Jul 19, 3:26 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 5 more2 hr
Jul 20, 5:35 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 9 more55 min
Jul 20, 6:08 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 9 more2 hr
Jul 21, 7:53 AM CDTMesoscale DiscussionSPCBoone, DuPage, Kane, Lake, McHenry, Stephenson and 1 more2 hr
Jul 21, 9:03 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 37 more117 min
Jul 21, 10:18 AM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Grundy and 14 more87 min
Jul 21, 1:01 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more89 min
Jul 21, 5:09 PM CDTMesoscale DiscussionSPCBureau, DeWitt, Ford, Grundy, Iroquois, Kankakee and 13 more36 min
Jul 21, 6:20 PM CDTMesoscale DiscussionSPCClark, Coles, Edgar, Vermilion25 min
Jul 22, 11:59 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Grundy, Iroquois, Kankakee and 10 more2 hr
Jul 22, 1:52 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 10 more83 min
Jul 22, 6:08 PM CDTMesoscale DiscussionSPCJersey, Madison, Monroe, Saint Clair97 min
Jul 22, 6:42 PM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 9 more93 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 archive20032005

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.