Alert archive / Illinois / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Illinois, 2023
47 severe thunderstorm watches in 2023. 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 2023. Tap one for its archive.
- Severe Thunderstorm Watches
- 47
- Busiest month
- July15 severe thunderstorm watches
- Busiest day
- May 7, 20235 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 |
|---|---|---|---|---|
| Jan 12, 1:57 AM CST | Severe Thunderstorm Watch | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski | 5 hr |
| Feb 15, 11:13 PM CST | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 6 hr |
| Apr 4, 10:36 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more | 4 hr |
| Apr 4, 6:34 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess, Stephenson | 6 hr |
| Apr 4, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Mercer, Rock Island | 6 hr |
| Apr 5, 2:27 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 10 hr |
| Apr 5, 3:57 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cass, Champaign, Christian and 59 more | 8 hr |
| Apr 15, 8:12 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 7 more | 3 hr |
| Apr 15, 8:50 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Johnson and 7 more | 3 hr |
| Apr 20, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 26 more | 7 hr |
| May 6, 8:50 PM CDT | Severe Thunderstorm Watch | SPC | Fulton, Hancock, Henderson, Knox, McDonough, Mercer and 2 more | 7 hr |
| May 6, 10:44 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 15 more | 6 hr |
| May 7, 1:18 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Cass, Christian, Clay and 47 more | 10 hr |
| May 7, 4:10 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 10 more | 10 hr |
| May 7, 6:58 PM CDT | Severe Thunderstorm Watch | SPC | Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 5 more | 5 hr |
| May 7, 10:02 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Pike | 6 hr |
| May 8, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more | 10 hr |
| May 13, 12:24 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Cass, Christian, Clay, Clinton and 26 more | 7 hr |
| May 14, 2:59 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 33 more | 7 hr |
| Jun 24, 6:28 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 31 more | 8 hr |
| Jun 25, 7:01 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Hardin, Massac, Pope, Pulaski | 5 hr |
| Jun 29, 3:08 AM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 21 more | 6 hr |
| Jun 29, 5:49 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more | 6 hr |
| Jun 29, 10:34 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Bureau, Calhoun, Cass, Champaign, Christian and 59 more | 6 hr |
| Jun 29, 1:08 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Franklin, Hamilton, Jefferson, Wabash, Wayne and 1 more | 8 hr |
| Jun 29, 3:17 PM CDT | Severe Thunderstorm Watch | SPC | Gallatin, Hardin, Pope, Saline, Williamson | 5 hr |
| Jun 30, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Edwards, Franklin and 23 more | 7 hr |
| Jul 1, 12:04 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Edwards, Fayette and 27 more | 9 hr |
| Jul 1, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Christian, Clark, Clay, Coles, Crawford, Cumberland and 8 more | 6 hr |
| Jul 2, 12:33 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 8 hr |
| Jul 2, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Crawford, Lawrence, Richland | 7 hr |
| Jul 12, 5:15 AM CDT | Severe Thunderstorm Watch | SPC | Rock Island | 6 hr |
| Jul 14, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cass, Cook, DeKalb and 38 more | 6 hr |
| Jul 16, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 4 hr |
| Jul 17, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clinton, Fayette, Madison, Marion, Monroe and 4 more | 8 hr |
| Jul 17, 3:31 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Champaign, Christian, Clark, Clay, Coles and 31 more | 7 hr |
| Jul 18, 8:59 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 9 more | 8 hr |
| Jul 19, 3:55 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Jackson, Johnson, Massac, Monroe, Perry and 6 more | 6 hr |
| Jul 20, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 1 more | 8 hr |
| Jul 28, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 32 more | 7 hr |
| Jul 29, 11:28 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 7 hr |
| Jul 29, 3:46 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Christian, Clark, Clay, Crawford, Cumberland and 23 more | 5 hr |
| Aug 2, 7:58 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Calhoun, Clinton, Jackson, Jersey, Johnson and 10 more | 7 hr |
| Aug 11, 9:23 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Pike | 7 hr |
| Aug 12, 1:42 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 49 more | 5 hr |
| Aug 24, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Lake, McHenry | 4 hr |
| Aug 25, 7:09 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Clark, Coles, Crawford and 17 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pope County15
- Monroe County15
- Randolph County15
- Massac County14
- Pulaski County14
- Jackson County14
- Williamson County14
- Clinton County14
- Saint Clair County14
- Washington County14
- Shelby County14
- Alexander County13
- Hardin County13
- Johnson County13
- Gallatin County13
- Saline County13
- Calhoun County13
- Jersey County13
- Madison County13
- Marion County13
- Effingham County13
- Franklin County13
- Perry County13
- Bond County12
- Christian County12
- Hamilton County12
- Union County11
- Fayette County11
- Greene County11
- Macoupin County11
- Montgomery County11
- Cass County11
- Clay County11
- Cumberland County11
- Lawrence County11
- Menard County11
- Morgan County11
- Moultrie County11
- Sangamon County11
- Edwards County11
62 more counties
- White County11
- Jefferson County11
- Wayne County11
- Clark County10
- Coles County10
- Crawford County10
- Douglas County10
- Jasper County10
- Macon County10
- Mason County10
- Richland County10
- Scott County10
- Wabash County10
- Pike County9
- Edgar County9
- Logan County9
- Schuyler County9
- Mercer County8
- Rock Island County8
- Adams County8
- Brown County8
- Champaign County8
- DeWitt County8
- Piatt County8
- Woodford County8
- Grundy County7
- Kankakee County7
- LaSalle County7
- Lee County7
- Fulton County7
- Henderson County7
- Knox County7
- McDonough County7
- McLean County7
- Marshall County7
- Peoria County7
- Tazewell County7
- Vermilion County7
- Warren County7
- Kendall County6
- Ogle County6
- Will County6
- Stephenson County6
- Carroll County6
- Bureau County6
- Hancock County6
- Henry County6
- Livingston County6
- Putnam County6
- Stark County6
- Whiteside County6
- Boone County5
- Cook County5
- DeKalb County5
- DuPage County5
- Kane County5
- Lake County5
- McHenry County5
- Jo Daviess County5
- Ford County5
- Iroquois County5
- Winnebago County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.