Alert archive / Illinois / Mesoscale Discussions / 2021

Mesoscale Discussions in Illinois, June 2021

26 mesoscale discussions in June 2021. 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 June 2021. Tap one for its archive.

Mesoscale Discussions
26
Busiest day
June 19, 20216 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
Jun 12, 1:26 PM CDTMesoscale DiscussionSPCChampaign, Christian, Coles, Cook, DeKalb, DeWitt and 27 more3 hr
Jun 18, 12:52 PM CDTMesoscale DiscussionSPCChampaign, Ford, Vermilion83 min
Jun 18, 8:53 PM CDTMesoscale DiscussionSPCBond, Brown, Cass, Christian, Clark, Clay and 26 more97 min
Jun 18, 9:27 PM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more2 hr
Jun 19, 2:10 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 27 more2 hr
Jun 19, 11:15 AM CDTMesoscale DiscussionSPCEffingham, Fayette, Greene, Macoupin, Montgomery, Morgan and 1 more2 hr
Jun 19, 2:12 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Greene, Jersey, Macoupin and 7 more93 min
Jun 19, 5:11 PM CDTMesoscale DiscussionSPCCalhoun, Clinton, Greene, Jersey, Macoupin, Madison and 6 more64 min
Jun 20, 10:57 AM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Cook and 39 more2 hr
Jun 20, 3:25 PM CDTMesoscale DiscussionSPCChampaign, Douglas, Ford, Grundy, Iroquois, Kankakee and 4 more2 hr
Jun 20, 6:56 PM CDTMesoscale DiscussionSPCAdams, Hancock, Henderson2 hr
Jun 20, 9:54 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 25 more66 min
Jun 24, 11:23 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 9 more2 hr
Jun 25, 12:57 PM CDTMesoscale DiscussionSPCAlexander, Clay, Crawford, Edwards, Franklin, Gallatin and 15 more2 hr
Jun 25, 4:46 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 23 more59 min
Jun 25, 7:05 PM CDTMesoscale DiscussionSPCIroquois, Kankakee, Vermilion55 min
Jun 25, 8:34 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 30 more86 min
Jun 25, 10:31 PM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Coles and 30 more59 min
Jun 26, 11:45 AM CDTMesoscale DiscussionSPCCalhoun, Cass, Champaign, Christian, DeWitt, Ford and 21 more2 hr
Jun 26, 2:47 PM CDTMesoscale DiscussionSPCCalhoun, DeWitt, Ford, Greene, Iroquois, Jersey and 8 more118 min
Jun 26, 6:08 PM CDTMesoscale DiscussionSPCChampaign, Coles, Cumberland, Douglas, Edgar, Ford and 5 more67 min
Jun 26, 8:23 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Cumberland, Douglas, Edgar and 3 more67 min
Jun 27, 11:36 AM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, DeWitt, Douglas and 16 more2 hr
Jun 28, 12:08 PM CDTMesoscale DiscussionSPCBrown, Cass, Christian, DeWitt, Ford, Fulton and 21 more2 hr
Jun 29, 11:54 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 4 more2 hr
Jun 30, 12:22 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more113 min

By county

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

60 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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. Rebuilt daily.