Alert archive / Illinois / Mesoscale Discussions / 2011
Mesoscale Discussions in Illinois, February 2011
15 mesoscale discussions in February 2011. 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 2011. Tap one for its archive.
- Mesoscale Discussions
- 15
- Busiest day
- February 1, 20114 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 |
|---|---|---|---|---|
| Feb 1, 6:54 AM CST | Mesoscale Discussion | SPC | Bond, Clinton, Fayette, Jersey, Madison, Marion and 5 more | 5 hr |
| Feb 1, 10:36 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Cass, Fulton and 24 more | 6 hr |
| Feb 1, 11:42 AM CST | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 27 more | 5 hr |
| Feb 1, 3:36 PM CST | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Calhoun, Carroll and 49 more | 6 hr |
| Feb 2, 2:33 AM CST | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 4 more | 4 hr |
| Feb 20, 4:35 AM CST | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Grundy and 14 more | 6 hr |
| Feb 24, 5:20 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Cass, Champaign, Christian and 36 more | 6 hr |
| Feb 24, 9:41 PM CST | Mesoscale Discussion | SPC | Champaign, Ford, Iroquois, Vermilion | 6 hr |
| Feb 27, 4:57 PM CST | Mesoscale Discussion | SPC | Alexander, Franklin, Hardin, Jackson, Jefferson, Johnson and 11 more | 2 hr |
| Feb 27, 5:10 PM CST | Mesoscale Discussion | SPC | Adams, Pike | 35 min |
| Feb 27, 5:50 PM CST | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henry, Lee, Mercer and 3 more | 6 hr |
| Feb 27, 8:25 PM CST | Mesoscale Discussion | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 39 more | 65 min |
| Feb 27, 8:49 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 10 more | 6 hr |
| Feb 27, 10:41 PM CST | Mesoscale Discussion | SPC | Bond, Clinton, Franklin, Jackson, Jefferson, Jersey and 9 more | 94 min |
| Feb 28, 1:05 AM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Massac, Pope, Pulaski | 25 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jersey County6
- Monroe County5
- Randolph County5
- Saint Clair County5
- Washington County5
- Bureau County5
- DeKalb County5
- Lee County5
- Ogle County5
- Bond County4
- Clinton County4
- Madison County4
- Marion County4
- Adams County4
- Henry County4
- Mercer County4
- Pike County4
- Jefferson County4
- Perry County4
- Boone County4
- Carroll County4
- Cook County4
- DuPage County4
- Iroquois County4
- Kane County4
- Kendall County4
- Lake County4
- LaSalle County4
- McHenry County4
- Whiteside County4
- Fayette County3
- Montgomery County3
- Brown County3
- Cass County3
- Fulton County3
- Greene County3
- Hancock County3
- Henderson County3
- Knox County3
- Logan County3
62 more counties
- McDonough County3
- Marshall County3
- Mason County3
- Menard County3
- Morgan County3
- Peoria County3
- Putnam County3
- Rock Island County3
- Sangamon County3
- Schuyler County3
- Scott County3
- Stark County3
- Tazewell County3
- Warren County3
- Woodford County3
- Champaign County3
- Christian County3
- Douglas County3
- Macoupin County3
- Moultrie County3
- Vermilion County3
- Ford County3
- Grundy County3
- Kankakee County3
- Stephenson County3
- Winnebago County3
- Alexander County3
- Franklin County3
- Hardin County3
- Jackson County3
- Massac County3
- Pope County3
- Pulaski County3
- Union County3
- Williamson County3
- Calhoun County2
- Clark County2
- Clay County2
- Coles County2
- Crawford County2
- Cumberland County2
- Edgar County2
- Effingham County2
- Jasper County2
- Lawrence County2
- Macon County2
- Piatt County2
- Richland County2
- Shelby County2
- Wayne County2
- DeWitt County2
- Jo Daviess County2
- Livingston County2
- McLean County2
- Will County2
- Johnson County2
- Saline County2
- Gallatin County2
- Edwards County1
- Hamilton County1
- Wabash County1
- White County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.