Alert archive / Illinois / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Illinois, 2012
56 severe thunderstorm watches in 2012. 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 2012. Tap one for its archive.
- Severe Thunderstorm Watches
- 56
- Busiest month
- May11 severe thunderstorm watches
- Busiest day
- September 5, 20124 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 2, 2:07 AM CST | Severe Thunderstorm Watch | SPC | Calhoun, Jersey, Madison, Monroe, Randolph, Saint Clair | 5 hr |
| Mar 2, 5:52 AM CST | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Champaign, Christian, Clark, Clay and 29 more | 6 hr |
| Mar 23, 11:44 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Champaign, Christian, Clark, Clay and 36 more | 7 hr |
| Mar 23, 3:39 PM CDT | Severe Thunderstorm Watch | SPC | Ford, Iroquois, Kankakee | 4 hr |
| Mar 30, 2:51 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 26 more | 7 hr |
| Mar 31, 9:24 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 16 more | 9 hr |
| Apr 14, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Henderson, Henry, Mercer, Putnam and 3 more | 4 hr |
| Apr 25, 7:47 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 32 more | 6 hr |
| Apr 26, 12:40 AM CDT | Severe Thunderstorm Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 6 hr |
| Apr 28, 1:48 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clark, Clay, Clinton, Crawford and 20 more | 7 hr |
| May 3, 1:07 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 5 more | 6 hr |
| May 3, 6:41 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 5 hr |
| May 3, 11:34 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cass, Champaign, DeWitt, Ford, Fulton and 25 more | 5 hr |
| May 4, 12:53 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown | 4 hr |
| May 4, 1:29 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Wabash, White | 5 hr |
| May 4, 10:35 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Edwards, Fayette, Franklin and 24 more | 8 hr |
| May 6, 9:29 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 11 more | 4 hr |
| May 6, 1:42 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Cass, Champaign, Cook and 35 more | 7 hr |
| May 24, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess, Mercer, Rock Island | 4 hr |
| May 28, 6:02 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 10 more | 3 hr |
| May 31, 2:34 PM CDT | Severe Thunderstorm Watch | SPC | Massac | 6 hr |
| Jun 4, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Fayette, Franklin and 26 more | 7 hr |
| Jun 4, 9:43 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 6 hr |
| Jun 11, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 7 hr |
| Jun 16, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 23 more | 6 hr |
| Jun 16, 6:40 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 6 hr |
| Jun 16, 8:23 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Cass, Champaign, Christian, Clark and 38 more | 3 hr |
| Jun 29, 10:49 AM CDT | Severe Thunderstorm Watch | SPC | Cook, DuPage, Grundy, Iroquois, Kane, Kankakee and 2 more | 6 hr |
| Jun 29, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Henderson, Henry, Mercer, Putnam, Rock Island and 2 more | 5 hr |
| Jul 1, 12:16 PM CDT | Severe Thunderstorm Watch | SPC | Cook, DuPage, Iroquois, Kankakee, Will | 6 hr |
| Jul 18, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more | 7 hr |
| Jul 18, 7:43 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more | 5 hr |
| Jul 24, 4:47 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kankakee and 7 more | 4 hr |
| Jul 25, 8:57 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Lee, Ogle, Rock Island, Stephenson and 2 more | 6 hr |
| Jul 26, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clark, Clay, Clinton, Crawford, Cumberland and 28 more | 10 hr |
| Jul 31, 1:13 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 19 more | 6 hr |
| Aug 4, 10:50 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 16 more | 5 hr |
| Aug 4, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 4 hr |
| Aug 4, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | Madison, Monroe, Randolph, Saint Clair | 6 hr |
| Aug 9, 4:02 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Coles, DeWitt, Douglas, Edgar, Ford and 8 more | 4 hr |
| Aug 9, 7:40 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 17 more | 4 hr |
| Aug 13, 3:32 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
| Aug 16, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 36 more | 7 hr |
| Aug 16, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clark, Crawford, Edwards, Franklin, Gallatin and 14 more | 8 hr |
| Sep 4, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess | 8 hr |
| Sep 4, 8:51 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Grundy and 13 more | 5 hr |
| Sep 5, 9:37 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 24 more | 6 hr |
| Sep 5, 1:43 PM CDT | Severe Thunderstorm Watch | SPC | Hardin | 5 hr |
| Sep 5, 2:29 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 8 hr |
| Sep 6, 12:28 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Hardin, Jackson, Johnson, Massac and 9 more | 9 hr |
| Sep 7, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 6 hr |
| Sep 7, 3:41 PM CDT | Severe Thunderstorm Watch | SPC | Christian, Clark, Clay, Coles, Crawford, Cumberland and 8 more | 6 hr |
| Sep 7, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
| Sep 25, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clinton, Edwards, Fayette, Franklin, Hamilton and 11 more | 6 hr |
| Oct 17, 1:58 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 6 hr |
| Oct 17, 7:47 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Gallatin, Hamilton, Hardin, Jefferson, Pope and 4 more | 75 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Saint Clair County16
- Clinton County15
- Washington County15
- Monroe County14
- Fayette County14
- Marion County14
- Madison County13
- Bond County13
- Edwards County13
- Hardin County13
- Jefferson County13
- Pope County13
- Wabash County13
- Wayne County13
- White County13
- Randolph County12
- Clay County12
- Crawford County12
- Effingham County12
- Jasper County12
- Lawrence County12
- Richland County12
- Hamilton County12
- Johnson County12
- Massac County12
- Perry County12
- Iroquois County12
- Kankakee County12
- Cook County12
- Will County12
- Calhoun County11
- Clark County11
- Cumberland County11
- Shelby County11
- Franklin County11
- Gallatin County11
- Jackson County11
- Saline County11
- Williamson County11
- Ogle County11
62 more counties
- Winnebago County11
- DuPage County11
- Kendall County11
- Jersey County10
- Coles County10
- Edgar County10
- Montgomery County10
- Moultrie County10
- Piatt County10
- Alexander County10
- Pulaski County10
- Union County10
- Ford County10
- Boone County10
- Bureau County10
- DeKalb County10
- LaSalle County10
- Lee County10
- Putnam County10
- Kane County10
- Grundy County10
- Champaign County9
- Greene County9
- Macon County9
- Macoupin County9
- Vermilion County9
- Henry County9
- Rock Island County9
- Whiteside County9
- Lake County9
- McHenry County9
- Livingston County9
- Douglas County8
- Carroll County8
- McLean County8
- Marshall County8
- Mercer County8
- DeWitt County8
- Logan County8
- Jo Daviess County7
- Peoria County7
- Stark County7
- Tazewell County7
- Woodford County7
- Henderson County7
- Warren County7
- Mason County7
- Christian County6
- Morgan County6
- Sangamon County6
- Scott County6
- Knox County6
- Cass County6
- Fulton County6
- Hancock County6
- McDonough County6
- Menard County6
- Pike County6
- Schuyler County6
- Stephenson County5
- Brown County5
- Adams County4
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.