Alert archive / Illinois / Mesoscale Discussions / 2016
Mesoscale Discussions in Illinois, September 2016
10 mesoscale discussions in September 2016. 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 2016. Tap one for its archive.
- Mesoscale Discussions
- 10
- Busiest day
- September 7, 20162 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 7, 1:00 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Bureau, Carroll, DeKalb, DuPage and 25 more | 3 hr |
| Sep 7, 3:36 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 26 more | 2 hr |
| Sep 8, 1:01 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 7 more | 2 hr |
| Sep 9, 2:37 PM CDT | Mesoscale Discussion | SPC | Bond, Christian, Clark, Clay, Clinton, Coles and 19 more | 2 hr |
| Sep 9, 5:08 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 20 more | 2 hr |
| Sep 16, 4:24 PM CDT | Mesoscale Discussion | SPC | Franklin, Hamilton, Jackson, Jefferson, Perry, Randolph and 5 more | 96 min |
| Sep 19, 2:02 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson | 58 min |
| Sep 19, 5:07 PM CDT | Mesoscale Discussion | SPC | Carroll, Henderson, Henry, Jo Daviess, Mercer, Rock Island and 4 more | 113 min |
| Sep 21, 2:00 PM CDT | Mesoscale Discussion | SPC | Brown, Bureau, Fulton, Grundy, Hancock, Henderson and 19 more | 2 hr |
| Sep 25, 2:38 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, DeKalb, DuPage, Grundy, Henry and 16 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Henry County5
- Whiteside County5
- Bureau County4
- Carroll County4
- Grundy County4
- Kendall County4
- LaSalle County4
- Lee County4
- Marshall County4
- Peoria County4
- Putnam County4
- Stark County4
- Stephenson County4
- Winnebago County4
- Boone County3
- DeKalb County3
- DuPage County3
- Fulton County3
- Henderson County3
- Jo Daviess County3
- Kane County3
- Knox County3
- McHenry County3
- Mercer County3
- Ogle County3
- Rock Island County3
- Warren County3
- Livingston County3
- Woodford County3
- Washington County3
- Wayne County3
- Hancock County2
- Lake County2
- McDonough County2
- Kankakee County2
- Mason County2
- Tazewell County2
- Will County2
- Franklin County2
- Hamilton County2
47 more counties
- Jackson County2
- Williamson County2
- Bond County2
- Christian County2
- Clark County2
- Clay County2
- Clinton County2
- Coles County2
- Crawford County2
- Cumberland County2
- Douglas County2
- Edgar County2
- Effingham County2
- Fayette County2
- Jasper County2
- Jefferson County2
- Lawrence County2
- Marion County2
- Montgomery County2
- Moultrie County2
- Richland County2
- Shelby County2
- Vermilion County2
- Saint Clair County2
- Adams County1
- Cook County1
- Ford County1
- McLean County1
- Alexander County1
- Gallatin County1
- Hardin County1
- Johnson County1
- Massac County1
- Pope County1
- Pulaski County1
- Saline County1
- Union County1
- Edwards County1
- Wabash County1
- Champaign County1
- Madison County1
- Piatt County1
- Perry County1
- Randolph County1
- White County1
- Brown County1
- Schuyler 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.