Alert archive / Illinois / Mesoscale Discussions / 2012
Mesoscale Discussions in Illinois, August 2012
17 mesoscale discussions in August 2012. 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 August 2012. Tap one for its archive.
- Mesoscale Discussions
- 17
- Busiest day
- August 16, 20125 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 |
|---|---|---|---|---|
| Aug 2, 11:47 AM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Franklin, Hamilton, Hardin, Jackson and 13 more | 88 min |
| Aug 2, 7:30 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 90 min |
| Aug 4, 3:08 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clinton, Greene, Jersey, Macoupin and 1 more | 2 hr |
| Aug 4, 10:26 AM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 46 more | 49 min |
| Aug 4, 1:09 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Fulton and 28 more | 66 min |
| Aug 4, 3:57 PM CDT | Mesoscale Discussion | SPC | Cook, Lake | 63 min |
| Aug 9, 3:16 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 6 more | 89 min |
| Aug 9, 5:11 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, Henry, Knox, McDonough, Mercer and 4 more | 94 min |
| Aug 9, 7:10 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Crawford, Cumberland and 15 more | 2 hr |
| Aug 13, 3:15 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 30 min |
| Aug 16, 3:57 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more | 3 hr |
| Aug 16, 10:01 AM CDT | Mesoscale Discussion | SPC | Clark, Coles, Crawford, Cumberland, Douglas, Edgar and 4 more | 89 min |
| Aug 16, 12:47 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Champaign, Christian, Clark, Clay and 40 more | 88 min |
| Aug 16, 3:07 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Edwards and 8 more | 83 min |
| Aug 16, 5:25 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clark, Clay, Clinton, Crawford and 27 more | 2 hr |
| Aug 31, 1:26 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Clinton, Franklin, Greene and 14 more | 64 min |
| Aug 31, 6:01 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Brown, Calhoun, Cass, Champaign and 40 more | 89 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Franklin County7
- Perry County7
- Alexander County6
- Clinton County6
- Jackson County6
- Jefferson County6
- Johnson County6
- Pulaski County6
- Randolph County6
- Union County6
- Williamson County6
- Cumberland County6
- Jasper County6
- Hamilton County5
- Washington County5
- Edwards County5
- Wabash County5
- Bond County5
- Champaign County5
- DeWitt County5
- Logan County5
- Macon County5
- Piatt County5
- Douglas County5
- Clark County5
- Coles County5
- Crawford County5
- Effingham County5
- Moultrie County5
- Hardin County4
- Massac County4
- Monroe County4
- Pope County4
- Saint Clair County4
- Saline County4
- Wayne County4
- White County4
- Calhoun County4
- Greene County4
- Jersey County4
62 more counties
- Macoupin County4
- Madison County4
- Henderson County4
- Henry County4
- Knox County4
- Livingston County4
- McLean County4
- Mercer County4
- Rock Island County4
- Stark County4
- Warren County4
- Whiteside County4
- Edgar County4
- Vermilion County4
- Shelby County4
- Lawrence County4
- Clay County4
- Fayette County4
- Gallatin County3
- Boone County3
- Bureau County3
- Carroll County3
- Cook County3
- DeKalb County3
- DuPage County3
- Ford County3
- Hancock County3
- Iroquois County3
- Jo Daviess County3
- Kane County3
- Kendall County3
- Lake County3
- LaSalle County3
- Lee County3
- McDonough County3
- McHenry County3
- Mason County3
- Menard County3
- Morgan County3
- Ogle County3
- Putnam County3
- Sangamon County3
- Stephenson County3
- Winnebago County3
- Christian County3
- Marion County3
- Montgomery County3
- Richland County3
- Brown County2
- Cass County2
- Fulton County2
- Grundy County2
- Marshall County2
- Peoria County2
- Schuyler County2
- Tazewell County2
- Woodford County2
- Scott County2
- Adams County1
- Kankakee County1
- Will County1
- Pike County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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. Rebuilt daily.