Alert archive / Illinois / Mesoscale Discussions / 2007

Mesoscale Discussions in Illinois, July 2007

28 mesoscale discussions in July 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 mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in July 2007. Tap one for its archive.

Mesoscale Discussions
28
Busiest day
July 17, 20076 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, 10:24 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson96 min
Jul 4, 12:59 AM CDTMesoscale DiscussionSPCHenry, Knox, Marshall, Mercer, Peoria, Rock Island and 2 more3 hr
Jul 4, 12:27 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Edwards, Fayette, Franklin and 24 more63 min
Jul 4, 5:14 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clay, Clinton, Crawford, Cumberland and 29 more91 min
Jul 10, 1:14 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Hancock, Henderson and 13 more61 min
Jul 14, 5:24 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 9 more96 min
Jul 14, 7:44 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Pike, Schuyler91 min
Jul 16, 6:36 PM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, McDonough, Pike, Schuyler84 min
Jul 16, 9:50 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 21 more85 min
Jul 17, 2:53 AM CDTMesoscale DiscussionSPCRock Island82 min
Jul 17, 6:58 AM CDTMesoscale DiscussionSPCBureau, Cass, DeWitt, Fulton, Grundy, Henderson and 17 more92 min
Jul 17, 10:52 AM CDTMesoscale DiscussionSPCBond, Calhoun, Clark, Clay, Clinton, Coles and 32 more83 min
Jul 17, 1:33 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Jo Daviess, Knox, Mercer and 5 more117 min
Jul 17, 3:34 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more86 min
Jul 17, 11:24 PM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henderson, Henry, Jo Daviess and 15 more96 min
Jul 18, 3:35 AM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, Jo Daviess, Kane, Lee and 5 more85 min
Jul 18, 4:21 AM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 10 more54 min
Jul 18, 4:59 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 32 more91 min
Jul 18, 6:38 PM CDTMesoscale DiscussionSPCChampaign, Cook, Douglas, DuPage, Edgar, Ford and 11 more97 min
Jul 18, 6:50 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henderson, Henry and 18 more85 min
Jul 18, 9:06 PM CDTMesoscale DiscussionSPCBureau, Carroll, Champaign, Coles, Cook, DeKalb and 38 more84 min
Jul 18, 10:23 PM CDTMesoscale DiscussionSPCMercer, Rock Island97 min
Jul 19, 1:27 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clark, Clay, Clinton, Coles and 26 more93 min
Jul 19, 5:38 PM CDTMesoscale DiscussionSPCClinton, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more97 min
Jul 26, 3:16 AM CDTMesoscale DiscussionSPCCook89 min
Jul 26, 9:53 PM CDTMesoscale DiscussionSPCBoone, Jo Daviess, Kane, McHenry, Ogle, Stephenson and 1 more97 min
Jul 27, 2:34 PM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 18 more56 min
Jul 27, 5:25 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clinton, Franklin, Hardin, Jackson and 15 more95 min

By county

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

58 more counties

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.