Alert archive / Illinois / Mesoscale Discussions / 2025

Mesoscale Discussions in Illinois, March 2025

23 mesoscale discussions in March 2025. 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 March 2025. Tap one for its archive.

Mesoscale Discussions
23
Busiest day
March 15, 20258 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
Mar 14, 5:01 PM CDTMesoscale DiscussionSPCBureau, Carroll, Fulton, Hancock, Henderson, Henry and 11 more89 min
Mar 14, 6:00 PM CDTMesoscale DiscussionSPCAdams, Brown, Pike2 hr
Mar 14, 7:45 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 46 more2 hr
Mar 14, 8:06 PM CDTMesoscale DiscussionSPCCarroll, Hancock, Henderson, Henry, Jo Daviess, Knox and 5 more114 min
Mar 14, 8:47 PM CDTMesoscale DiscussionSPCJersey, Macoupin, Madison, Monroe, Saint Clair88 min
Mar 14, 9:21 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 21 more84 min
Mar 14, 10:20 PM CDTMesoscale DiscussionSPCAlexander115 min
Mar 14, 10:42 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 30 more63 min
Mar 14, 11:14 PM CDTMesoscale DiscussionSPCBoone, DeKalb, DuPage, Grundy, Jo Daviess, Kane and 10 more2 hr
Mar 14, 11:50 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more115 min
Mar 19, 4:37 AM CDTMesoscale DiscussionSPCHenderson, Mercer, Rock Island113 min
Mar 19, 9:33 AM CDTMesoscale DiscussionSPCBoone, DeKalb, DuPage, Grundy, Kane, Kendall and 7 more117 min
Mar 19, 11:21 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, DeWitt, Effingham and 24 more2 hr
Mar 19, 2:25 PM CDTMesoscale DiscussionSPCGallatin, Hamilton, Hardin, Massac, Pope, Saline and 1 more2 hr
Mar 19, 3:37 PM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 21 more113 min
Mar 19, 4:56 PM CDTMesoscale DiscussionSPCClark, Crawford, Edgar, Jasper, Lawrence, Richland and 1 more94 min
Mar 19, 5:24 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Pope2 hr
Mar 30, 11:04 AM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clay, Clinton, Cumberland and 27 more116 min
Mar 30, 12:43 PM CDTMesoscale DiscussionSPCCook, DeKalb, DuPage, Ford, Grundy, Iroquois and 6 more2 hr
Mar 30, 1:41 PM CDTMesoscale DiscussionSPCAlexander2 hr
Mar 30, 2:05 PM CDTMesoscale DiscussionSPCChampaign, Coles, Cumberland, Douglas, Edgar, Ford and 3 more115 min
Mar 30, 2:27 PM CDTMesoscale DiscussionSPCClay, Clinton, Crawford, Edwards, Franklin, Hamilton and 13 more93 min
Mar 30, 5:20 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more115 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 archive20242026

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.