Alert archive / Illinois / Mesoscale Discussions / 2023
Mesoscale Discussions in Illinois, September 2023
3 mesoscale discussions in September 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 September 2023. Tap one for its archive.
- Mesoscale Discussions
- 3
- Busiest day
- September 26, 20232 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 1:20 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Ford and 25 more | 85 min |
| Sep 26, 2:02 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Clay, Coles, Crawford and 23 more | 88 min |
| Sep 27, 6:43 PM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 10 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Ford County2
- Iroquois County2
- Edwards County2
- Lawrence County2
- Marion County2
- Richland County2
- Wabash County2
- Wayne County2
- White County2
- Boone County1
- Bureau County1
- Carroll County1
- DeKalb County1
- DuPage County1
- Grundy County1
- Henry County1
- Jo Daviess County1
- Kane County1
- Kankakee County1
- Kendall County1
- Knox County1
- LaSalle County1
- Lee County1
- Livingston County1
- McLean County1
- Marshall County1
- Mercer County1
- Ogle County1
- Peoria County1
- Putnam County1
- Rock Island County1
- Stark County1
- Stephenson County1
- Tazewell County1
- Whiteside County1
- Will County1
- Winnebago County1
- Woodford County1
- Champaign County1
- Christian County1
27 more counties
- Clark County1
- Clay County1
- Coles County1
- Crawford County1
- Cumberland County1
- DeWitt County1
- Douglas County1
- Edgar County1
- Effingham County1
- Fayette County1
- Jasper County1
- Macon County1
- Montgomery County1
- Moultrie County1
- Piatt County1
- Sangamon County1
- Shelby County1
- Vermilion County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jefferson County1
- Perry County1
- Pope County1
- Saline County1
- Williamson County1
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.