Alert archive / Illinois / Mesoscale Discussions / 2023
Mesoscale Discussions in Illinois, March 2023
19 mesoscale discussions in March 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 March 2023. Tap one for its archive.
- Mesoscale Discussions
- 19
- Busiest day
- March 31, 202311 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 |
|---|---|---|---|---|
| Mar 1, 4:56 PM CST | Mesoscale Discussion | SPC | Hardin, Massac | 64 min |
| Mar 3, 4:01 AM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 1 more | 2 hr |
| Mar 3, 10:15 AM CST | Mesoscale Discussion | SPC | Massac | 3 hr |
| Mar 22, 9:55 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Effingham, Fayette, Greene and 10 more | 95 min |
| Mar 22, 6:31 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, DeWitt, Fulton, Logan and 7 more | 119 min |
| Mar 23, 7:22 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more | 113 min |
| Mar 25, 3:47 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Jo Daviess, McHenry, Ogle, Stephenson and 2 more | 4 hr |
| Mar 26, 1:41 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clinton, Coles and 24 more | 2 hr |
| Mar 31, 8:36 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Hancock, Jersey and 8 more | 84 min |
| Mar 31, 10:37 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 10 more | 53 min |
| Mar 31, 11:24 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 27 more | 96 min |
| Mar 31, 12:53 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Franklin, Jackson, Jefferson, Johnson and 10 more | 97 min |
| Mar 31, 1:32 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Fulton, Hancock, Knox, McDonough and 5 more | 118 min |
| Mar 31, 2:07 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 26 more | 83 min |
| Mar 31, 3:17 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 20 more | 88 min |
| Mar 31, 3:50 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more | 55 min |
| Mar 31, 5:18 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 27 more | 117 min |
| Mar 31, 5:30 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 27 more | 2 hr |
| Mar 31, 6:20 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Cook, Crawford, Cumberland and 21 more | 115 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County8
- Brown County8
- Schuyler County8
- Morgan County7
- Pike County7
- Scott County7
- Fulton County7
- Mason County7
- Hancock County7
- Knox County7
- Peoria County7
- Stark County7
- Calhoun County6
- Greene County6
- Jersey County6
- Macoupin County6
- Cass County6
- Tazewell County6
- Carroll County6
- Whiteside County6
- Henry County6
- McDonough County6
- Warren County6
- Massac County5
- Sangamon County5
- Menard County5
- Jo Daviess County5
- Marshall County5
- Woodford County5
- Henderson County5
- Mercer County5
- Rock Island County5
- Bureau County5
- Hardin County4
- Madison County4
- Logan County4
- Ford County4
- Grundy County4
- Iroquois County4
- Kankakee County4
60 more counties
- Kendall County4
- Livingston County4
- Will County4
- Alexander County3
- Gallatin County3
- Johnson County3
- Pulaski County3
- Montgomery County3
- Boone County3
- McHenry County3
- Ogle County3
- Stephenson County3
- Winnebago County3
- LaSalle County3
- McLean County3
- Putnam County3
- Cook County3
- DuPage County3
- Kane County3
- Lake County3
- Pope County2
- Bond County2
- Christian County2
- Effingham County2
- Fayette County2
- Moultrie County2
- Shelby County2
- DeWitt County2
- Franklin County2
- Jackson County2
- Union County2
- White County2
- Williamson County2
- Champaign County2
- Clark County2
- Clinton County2
- Coles County2
- Cumberland County2
- Douglas County2
- Edgar County2
- Vermilion County2
- Monroe County2
- Saint Clair County2
- DeKalb County2
- Lee County2
- Hamilton County1
- Saline County1
- Macon County1
- Piatt County1
- Jefferson County1
- Marion County1
- Perry County1
- Randolph County1
- Washington County1
- Crawford County1
- Edwards County1
- Jasper County1
- Lawrence County1
- Richland County1
- Wabash County1
Nearby
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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.