Alert archive / Illinois / Mesoscale Discussions / 2010
Mesoscale Discussions in Illinois, April 2010
31 mesoscale discussions in April 2010. 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 April 2010. Tap one for its archive.
- Mesoscale Discussions
- 31
- Busiest day
- April 5, 20107 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 |
|---|---|---|---|---|
| Apr 2, 11:35 AM CDT | Mesoscale Discussion | SPC | Jo Daviess, Mercer, Rock Island | 85 min |
| Apr 4, 11:02 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Cass, DeWitt and 31 more | 88 min |
| Apr 4, 2:22 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Hancock, Pike, Schuyler and 1 more | 113 min |
| Apr 4, 6:23 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 12 more | 67 min |
| Apr 4, 8:25 PM CDT | Mesoscale Discussion | SPC | Calhoun, Cass, Christian, DeWitt, Greene, Jersey and 10 more | 65 min |
| Apr 4, 11:16 PM CDT | Mesoscale Discussion | SPC | Calhoun, Jersey, Macoupin, Madison, Monroe, Saint Clair | 59 min |
| Apr 5, 1:56 AM CDT | Mesoscale Discussion | SPC | Clinton, Franklin, Jackson, Monroe, Perry, Randolph and 3 more | 94 min |
| Apr 5, 11:11 AM CDT | Mesoscale Discussion | SPC | Adams | 64 min |
| Apr 5, 12:28 PM CDT | Mesoscale Discussion | SPC | Alexander, Calhoun, Clinton, Edwards, Franklin, Gallatin and 22 more | 62 min |
| Apr 5, 5:23 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henry, Jo Daviess, Kendall and 10 more | 67 min |
| Apr 5, 5:47 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Douglas, Edgar, Moultrie and 1 more | 58 min |
| Apr 5, 9:37 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more | 53 min |
| Apr 6, 4:05 AM CDT | Mesoscale Discussion | SPC | Jo Daviess | 85 min |
| Apr 6, 7:37 AM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Kane, Lake, McHenry | 83 min |
| Apr 6, 4:55 PM CDT | Mesoscale Discussion | SPC | Boone, Jo Daviess, Stephenson, Winnebago | 65 min |
| Apr 6, 8:46 PM CDT | Mesoscale Discussion | SPC | Brown, Bureau, Carroll, Fulton, Hancock, Henderson and 14 more | 59 min |
| Apr 7, 12:54 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 38 more | 3 hr |
| Apr 7, 3:15 PM CDT | Mesoscale Discussion | SPC | Alexander, Champaign, Clark, Clay, Coles, Crawford and 36 more | 2 hr |
| Apr 7, 5:43 PM CDT | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Coles, Crawford, Cumberland and 25 more | 62 min |
| Apr 23, 6:31 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 29 min |
| Apr 24, 7:35 AM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more | 55 min |
| Apr 24, 11:08 AM CDT | Mesoscale Discussion | SPC | Monroe | 67 min |
| Apr 24, 2:01 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Massac, Pope, Pulaski | 89 min |
| Apr 24, 2:52 PM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Fayette, Jersey, Madison, Marion and 4 more | 53 min |
| Apr 24, 5:14 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 41 more | 61 min |
| Apr 24, 5:48 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more | 57 min |
| Apr 30, 9:18 AM CDT | Mesoscale Discussion | SPC | Adams, Hancock, Henderson, Mercer, Rock Island | 57 min |
| Apr 30, 12:41 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Jo Daviess and 9 more | 64 min |
| Apr 30, 2:08 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 13 more | 67 min |
| Apr 30, 2:41 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henderson, Henry and 17 more | 64 min |
| Apr 30, 5:37 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 16 more | 53 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County9
- Mercer County8
- Rock Island County7
- Adams County7
- Calhoun County7
- Jersey County7
- Whiteside County7
- Franklin County7
- Jackson County7
- Perry County7
- Williamson County7
- Alexander County7
- Edwards County7
- Massac County7
- Pope County7
- Pulaski County7
- Union County7
- Stephenson County7
- Brown County6
- Bureau County6
- Hancock County6
- Henry County6
- Lee County6
- Pike County6
- Schuyler County6
- Stark County6
- Monroe County6
- Saint Clair County6
- Washington County6
- Hamilton County6
- Hardin County6
- Jefferson County6
- Johnson County6
- Marion County6
- Saline County6
- Wabash County6
- White County6
- Carroll County6
- DeKalb County6
- Ogle County6
60 more counties
- Winnebago County6
- Cass County5
- DeWitt County5
- Henderson County5
- Knox County5
- LaSalle County5
- Logan County5
- Macon County5
- Scott County5
- Warren County5
- Madison County5
- Clinton County5
- Gallatin County5
- Wayne County5
- Clark County5
- Coles County5
- Edgar County5
- Vermilion County5
- Boone County5
- McHenry County5
- Fulton County4
- Greene County4
- Marshall County4
- Mason County4
- Menard County4
- Morgan County4
- Peoria County4
- Putnam County4
- Sangamon County4
- Woodford County4
- Macoupin County4
- Piatt County4
- Randolph County4
- Champaign County4
- Douglas County4
- Moultrie County4
- Clay County4
- Crawford County4
- Cumberland County4
- Effingham County4
- Fayette County4
- Jasper County4
- Lawrence County4
- Richland County4
- Livingston County3
- McDonough County3
- Christian County3
- Montgomery County3
- Kane County3
- Bond County3
- Shelby County3
- Grundy County2
- McLean County2
- Tazewell County2
- Kendall County2
- Cook County2
- DuPage County2
- Lake County2
- Ford County2
- Iroquois County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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.