Alert archive / Illinois / Mesoscale Discussions / 2004
Mesoscale Discussions in Illinois, August 2004
40 mesoscale discussions in August 2004. 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 2004. Tap one for its archive.
- Mesoscale Discussions
- 40
- Busiest day
- August 27, 20049 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, 11:11 AM CDT | Mesoscale Discussion | SPC | Champaign, Coles, Cook, DeWitt, Douglas, DuPage and 15 more | 2 hr |
| Aug 3, 11:22 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Jersey, Monroe, Pike and 1 more | 83 min |
| Aug 3, 3:55 PM CDT | Mesoscale Discussion | SPC | Adams, Carroll, Fulton, Hancock, Henderson, Henry and 7 more | 95 min |
| Aug 3, 5:39 PM CDT | Mesoscale Discussion | SPC | Carroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 3 more | 66 min |
| Aug 3, 6:34 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henderson, Henry, Jo Daviess, Knox and 7 more | 86 min |
| Aug 3, 7:38 PM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Ford, Grundy and 14 more | 67 min |
| Aug 3, 8:19 PM CDT | Mesoscale Discussion | SPC | Carroll, Henry, Jo Daviess, Knox, Mercer, Rock Island and 2 more | 56 min |
| Aug 3, 9:52 PM CDT | Mesoscale Discussion | SPC | Cook, DuPage, Grundy, Kane, Kendall, Lake and 3 more | 53 min |
| Aug 3, 10:38 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Greene, Jersey and 3 more | 67 min |
| Aug 4, 1:42 AM CDT | Mesoscale Discussion | SPC | Fulton, Henderson, Jersey, Livingston, McDonough, Mason and 5 more | 2 hr |
| Aug 4, 3:52 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 32 more | 53 min |
| Aug 4, 3:39 PM CDT | Mesoscale Discussion | SPC | Hardin, Massac, Pope | 96 min |
| Aug 9, 1:29 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Pike, Schuyler, Scott | 91 min |
| Aug 17, 12:57 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 38 more | 63 min |
| Aug 17, 3:59 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Cass, Champaign and 41 more | 61 min |
| Aug 17, 5:57 PM CDT | Mesoscale Discussion | SPC | Calhoun, Cass, Champaign, Christian, DeWitt, Douglas and 19 more | 93 min |
| Aug 17, 7:48 PM CDT | Mesoscale Discussion | SPC | Ford, Grundy, Iroquois, Kankakee, Livingston, Will | 117 min |
| Aug 18, 1:39 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 28 more | 96 min |
| Aug 18, 4:17 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, Mercer, Rock Island, Warren | 118 min |
| Aug 18, 5:17 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Cass, Champaign, Christian and 48 more | 88 min |
| Aug 18, 7:26 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 36 more | 2 hr |
| Aug 18, 9:40 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, DeWitt and 18 more | 95 min |
| Aug 19, 5:50 PM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more | 85 min |
| Aug 24, 1:13 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 40 more | 2 hr |
| Aug 25, 9:24 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, DeWitt, Fulton and 22 more | 2 hr |
| Aug 25, 11:59 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Hancock, Pike and 2 more | 91 min |
| Aug 25, 1:22 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cass, Champaign, DeKalb and 42 more | 113 min |
| Aug 25, 5:14 PM CDT | Mesoscale Discussion | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 34 more | 91 min |
| Aug 25, 7:47 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Cass, Champaign, Christian and 48 more | 58 min |
| Aug 25, 9:57 PM CDT | Mesoscale Discussion | SPC | Adams, Hancock | 93 min |
| Aug 26, 3:50 PM CDT | Mesoscale Discussion | SPC | Calhoun, Monroe | 115 min |
| Aug 26, 9:13 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Rock Island, Stephenson | 62 min |
| Aug 26, 11:53 PM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Grundy, Kane and 8 more | 97 min |
| Aug 27, 1:49 AM CDT | Mesoscale Discussion | SPC | Henderson, Henry, Mercer, Ogle, Rock Island, Whiteside and 1 more | 56 min |
| Aug 27, 4:36 AM CDT | Mesoscale Discussion | SPC | Cook, DeWitt, Ford, Fulton, Grundy, Hancock and 11 more | 84 min |
| Aug 27, 6:33 AM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Ford, Iroquois, McLean, Mason and 4 more | 27 min |
| Aug 27, 9:24 AM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Morgan and 2 more | 96 min |
| Aug 27, 1:07 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Greene, Jersey and 6 more | 113 min |
| Aug 27, 3:49 PM CDT | Mesoscale Discussion | SPC | Calhoun, Cass, Greene, Jersey, Morgan, Pike and 1 more | 86 min |
| Aug 27, 4:10 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Fulton, Hancock, Henderson and 14 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- DeWitt County16
- Adams County16
- Scott County16
- Brown County15
- Cass County15
- Morgan County15
- Schuyler County15
- Calhoun County14
- Fulton County14
- McDonough County14
- Mason County14
- Tazewell County14
- Champaign County13
- Ford County13
- McLean County13
- Vermilion County13
- Pike County13
- Hancock County13
- Henderson County13
- Mercer County13
- Peoria County13
- Greene County13
- Livingston County12
- Piatt County12
- Jersey County12
- Woodford County12
- Logan County12
- Macon County12
- Menard County12
- Sangamon County12
- Iroquois County11
- Knox County11
- Warren County11
- Douglas County10
- Grundy County10
- Moultrie County10
- Rock Island County10
- Christian County10
- Macoupin County10
- Kankakee County9
62 more counties
- Will County9
- Henry County9
- Stark County9
- Putnam County9
- Shelby County9
- Coles County8
- Edgar County8
- Kane County8
- Kendall County8
- Whiteside County8
- Marshall County8
- Cook County7
- DuPage County7
- LaSalle County7
- Carroll County7
- Bureau County7
- Montgomery County7
- Monroe County6
- Jo Daviess County6
- Clark County6
- Crawford County6
- Cumberland County6
- Jasper County6
- DeKalb County5
- Lee County5
- Effingham County5
- Fayette County5
- Bond County5
- Marion County5
- Madison County5
- Lake County4
- Randolph County4
- Clay County4
- Lawrence County4
- Richland County4
- Stephenson County3
- Ogle County3
- Edwards County3
- Wabash County3
- Franklin County3
- Hamilton County3
- Jackson County3
- Jefferson County3
- Perry County3
- Washington County3
- Wayne County3
- Williamson County3
- Clinton County3
- Saint Clair County3
- Hardin County2
- Pope County2
- Johnson County2
- Saline County2
- Union County2
- White County2
- McHenry County2
- Winnebago County2
- Massac County1
- Gallatin County1
- Boone County1
- Alexander County1
- Pulaski County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.