Alert archive / Illinois / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Illinois, 2004
66 severe thunderstorm watches in 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in 2004. Tap one for its archive.
- Severe Thunderstorm Watches
- 66
- Busiest month
- May23 severe thunderstorm watches
- Busiest day
- May 27, 20044 severe thunderstorm watches
Over time
By month
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 |
|---|---|---|---|---|
| Mar 1, 11:30 AM CST | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 32 more | 6 hr |
| Apr 30, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Crawford, Lawrence | 3 hr |
| May 7, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Ford, Grundy, Iroquois, Kankakee, Kendall and 10 more | 4 hr |
| May 7, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more | 6 hr |
| May 9, 12:55 PM CDT | Severe Thunderstorm Watch | SPC | Cook, DuPage, Lake, Will | 6 hr |
| May 9, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | Cook, DuPage, Grundy, Kankakee, Kendall, LaSalle and 3 more | 4 hr |
| May 17, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, DeKalb, Jo Daviess, Lee, McHenry and 6 more | 5 hr |
| May 18, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 48 more | 7 hr |
| May 20, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 23 more | 6 hr |
| May 20, 9:05 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cook, DeKalb, DuPage, Ford, Fulton and 20 more | 5 hr |
| May 21, 10:25 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 8 more | 6 hr |
| May 22, 12:05 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more | 6 hr |
| May 22, 11:35 AM CDT | Severe Thunderstorm Watch | SPC | Champaign, Cook, DeWitt, Douglas, Ford, Grundy and 10 more | 6 hr |
| May 23, 12:40 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more | 5 hr |
| May 23, 1:40 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Logan and 8 more | 4 hr |
| May 23, 4:35 PM CDT | Severe Thunderstorm Watch | SPC | Monroe | 5 hr |
| May 25, 3:00 AM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 15 more | 3 hr |
| May 25, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Christian, Clinton, Fayette, Greene and 12 more | 6 hr |
| May 25, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clay, Clinton, Crawford, Edwards, Franklin and 22 more | 6 hr |
| May 26, 8:50 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Clay, Clinton, Crawford, Edwards, Effingham and 25 more | 5 hr |
| May 26, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 34 more | 5 hr |
| May 27, 11:55 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Hancock, Henderson, McDonough, Pike and 3 more | 6 hr |
| May 27, 1:30 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 22 more | 7 hr |
| May 27, 2:25 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Franklin, Greene and 12 more | 7 hr |
| May 27, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Crawford, Cumberland, Edwards, Effingham and 7 more | 4 hr |
| Jun 1, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Champaign, Clark, Clay, Clinton, Coles and 33 more | 8 hr |
| Jun 11, 9:35 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Mercer | 4 hr |
| Jun 12, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Mercer, Rock Island, Warren | 5 hr |
| Jun 12, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 5 hr |
| Jun 14, 6:50 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Brown, Bureau, Carroll, Cass, Champaign and 44 more | 6 hr |
| Jun 14, 4:10 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clay, Clinton, Edwards, Effingham and 29 more | 6 hr |
| Jun 16, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | Henderson | 5 hr |
| Jun 18, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Fayette, Greene and 12 more | 7 hr |
| Jun 23, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more | 6 hr |
| Jul 4, 11:35 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Massac, Pulaski | 4 hr |
| Jul 4, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clay, Clinton, Crawford, Cumberland, Edwards and 19 more | 6 hr |
| Jul 5, 6:55 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Christian, Clinton, Coles, Cumberland and 12 more | 4 hr |
| Jul 5, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | Clay, Edwards, Franklin, Gallatin, Hamilton, Jackson and 8 more | 4 hr |
| Jul 5, 9:10 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Christian, Clark, Clay, Clinton, Coles and 18 more | 4 hr |
| Jul 6, 6:50 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 19 more | 4 hr |
| Jul 6, 12:10 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more | 6 hr |
| Jul 6, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Champaign, Christian, Clark, Clay, Coles and 30 more | 8 hr |
| Jul 11, 11:40 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Cass, Champaign, Cook, DeKalb and 40 more | 6 hr |
| Jul 11, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Greene, Jersey, Macoupin, Morgan, Pike and 1 more | 5 hr |
| Jul 11, 5:40 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Christian, Clark, Coles, Cumberland, DeWitt and 16 more | 5 hr |
| Jul 13, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Edwards, Gallatin, Hamilton, Hardin, Jefferson and 7 more | 6 hr |
| Jul 16, 12:10 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more | 5 hr |
| Jul 20, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Henry and 13 more | 4 hr |
| Jul 21, 9:35 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 26 more | 5 hr |
| Jul 21, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DeWitt, DuPage and 20 more | 6 hr |
| Jul 22, 12:20 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, Coles, Cook, DeKalb, DeWitt and 24 more | 6 hr |
| Jul 22, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 20 more | 6 hr |
| Aug 3, 8:40 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Greene, Jersey, Monroe and 2 more | 5 hr |
| Aug 3, 7:55 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Ford and 21 more | 5 hr |
| Aug 3, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Fulton, Hancock, Henderson, Henry, Knox, McDonough and 3 more | 5 hr |
| Aug 3, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 32 more | 6 hr |
| Aug 17, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Calhoun, Cass, Champaign and 41 more | 6 hr |
| Aug 18, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 28 more | 5 hr |
| Aug 24, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clinton, Fayette, Franklin, Jackson, Jefferson and 9 more | 6 hr |
| Aug 25, 3:15 PM CDT | Severe Thunderstorm Watch | SPC | Monroe, Saint Clair | 6 hr |
| Aug 26, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more | 6 hr |
| Aug 27, 1:25 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DeWitt, DuPage and 25 more | 6 hr |
| Aug 27, 9:40 AM CDT | Severe Thunderstorm Watch | SPC | Brown, Calhoun, Cass, Greene, Jersey, Macoupin and 7 more | 5 hr |
| Aug 27, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Cass, Greene, Jersey, Morgan, Pike and 1 more | 6 hr |
| Oct 17, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Monroe, Randolph, Saint Clair | 6 hr |
| Oct 29, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 7 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Kankakee County22
- Cook County20
- DeKalb County20
- Grundy County20
- Iroquois County20
- LaSalle County20
- Putnam County20
- Will County20
- DuPage County19
- Ford County19
- Kendall County19
- Livingston County19
- McLean County19
- Kane County18
- Marshall County18
- Woodford County18
- Boone County17
- Bureau County17
- Lee County17
- Ogle County17
- Lake County16
- Mercer County16
- Peoria County16
- Tazewell County16
- Monroe County16
- McHenry County15
- Winnebago County15
- Fayette County15
- Marion County15
- Saint Clair County15
- Carroll County14
- Fulton County14
- Henderson County14
- Henry County14
- Stark County14
- Calhoun County14
- Champaign County14
- Clay County14
- Clinton County14
- Douglas County14
62 more counties
- Greene County14
- Logan County14
- Piatt County14
- Richland County14
- Washington County14
- Jo Daviess County13
- Knox County13
- Rock Island County13
- Stephenson County13
- Warren County13
- Lawrence County13
- Bond County13
- Coles County13
- DeWitt County13
- Effingham County13
- Jersey County13
- Macon County13
- Montgomery County13
- Pike County13
- Shelby County13
- Vermilion County13
- Wayne County13
- Jefferson County13
- McDonough County12
- Whiteside County12
- Crawford County12
- Cass County12
- Cumberland County12
- Edgar County12
- Madison County12
- Moultrie County12
- Scott County12
- Edwards County12
- Randolph County12
- Brown County11
- Christian County11
- Jasper County11
- Macoupin County11
- Mason County11
- Menard County11
- Hamilton County11
- Wabash County11
- White County11
- Perry County11
- Franklin County11
- Clark County10
- Hancock County10
- Morgan County10
- Sangamon County10
- Schuyler County10
- Gallatin County10
- Jackson County10
- Saline County10
- Williamson County10
- Adams County9
- Union County8
- Hardin County7
- Alexander County6
- Johnson County6
- Pope County6
- Pulaski County5
- Massac County4
The busiest days
Days with the most alerts issued, by UTC date.
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. Rebuilt daily.