Alert archive / Illinois / Mesoscale Discussions / 2023

Mesoscale Discussions in Illinois, May 2023

22 mesoscale discussions in May 2023. 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 May 2023. Tap one for its archive.

Mesoscale Discussions
22
Busiest day
May 7, 202310 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
May 6, 2:00 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Edwards, Effingham, Fayette and 6 more2 hr
May 6, 8:12 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, Fulton, Greene and 22 more93 min
May 6, 11:34 PM CDTMesoscale DiscussionSPCBrown, Cass, Fulton, Hancock, Henderson, Knox and 11 more86 min
May 7, 1:37 AM CDTMesoscale DiscussionSPCFulton, Hancock, Henderson, Knox, McDonough, Mason and 3 more113 min
May 7, 2:21 AM CDTMesoscale DiscussionSPCClark, Coles, Cumberland, Moultrie114 min
May 7, 4:05 AM CDTMesoscale DiscussionSPCChristian, Clark, Coles, Crawford, Cumberland, Douglas and 7 more85 min
May 7, 1:00 PM CDTMesoscale DiscussionSPCAlexander, Bond, Christian, Clay, Clinton, Effingham and 30 more2 hr
May 7, 3:40 PM CDTMesoscale DiscussionSPCBond, Cass, Christian, Clay, Clinton, Edwards and 35 more65 min
May 7, 5:35 PM CDTMesoscale DiscussionSPCBureau, Carroll, Cass, Fulton, Hancock, Henderson and 11 more85 min
May 7, 6:10 PM CDTMesoscale DiscussionSPCBond, Cass, Christian, Greene, Jersey, Macoupin and 8 more2 hr
May 7, 6:40 PM CDTMesoscale DiscussionSPCFord, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 2 more65 min
May 7, 8:45 PM CDTMesoscale DiscussionSPCBrown, Cass, Christian, DeWitt, Ford, Fulton and 21 more90 min
May 8, 2:16 PM CDTMesoscale DiscussionSPCBond, Clinton, Jackson, Madison, Monroe, Perry and 3 more59 min
May 8, 5:36 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more84 min
May 8, 9:05 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more115 min
May 13, 11:26 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 27 more2 hr
May 13, 12:01 PM CDTMesoscale DiscussionSPCHancock119 min
May 13, 2:38 PM CDTMesoscale DiscussionSPCBond, Cass, Christian, Clinton, Effingham, Fayette and 19 more2 hr
May 13, 6:09 PM CDTMesoscale DiscussionSPCClay, Clinton, Edwards, Effingham, Franklin, Hamilton and 13 more2 hr
May 14, 12:43 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Greene, Jersey, Macoupin and 8 more3 hr
May 14, 5:47 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Christian, Clay and 25 more88 min
May 14, 7:56 PM CDTMesoscale DiscussionSPCBond, Clay, Edwards, Effingham, Fayette, Gallatin and 8 more2 hr

By county

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

48 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.