Alert archive / Illinois / Mesoscale Discussions / 2026

Mesoscale Discussions in Illinois, February 2026

5 mesoscale discussions in February 2026. 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 February 2026. Tap one for its archive.

Mesoscale Discussions
5
Busiest day
February 19, 20264 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
Feb 19, 10:44 AM CSTMesoscale DiscussionSPCBond, Calhoun, Clinton, Greene, Jersey, Macoupin and 5 more91 min
Feb 19, 11:34 AM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 38 more116 min
Feb 19, 2:56 PM CSTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 12 more2 hr
Feb 19, 3:06 PM CSTMesoscale DiscussionSPCBond, Clinton, Fayette, Jefferson, Madison, Marion and 5 more84 min
Feb 19, 6:03 PM CSTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 8 more87 min

By county

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

9 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

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.