Alert archive / Illinois / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Illinois, 2019
51 severe thunderstorm watches in 2019. 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 2019. Tap one for its archive.
- Severe Thunderstorm Watches
- 51
- Busiest month
- June23 severe thunderstorm watches
- Busiest day
- June 30, 20195 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 24, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Fayette, Franklin and 17 more | 7 hr |
| Apr 30, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Champaign, Christian, Clark, Clay and 26 more | 7 hr |
| May 16, 12:51 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, DeWitt, Ford, Grundy, Iroquois, Kankakee and 5 more | 5 hr |
| May 16, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Coles, Crawford, Douglas, Edgar, Lawrence | 3 hr |
| May 16, 7:57 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Cook, DeKalb, DuPage, Ford and 18 more | 6 hr |
| May 18, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Jersey, Madison, Monroe, Randolph, Saint Clair | 4 hr |
| May 19, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Jasper, Lawrence, Richland | 5 hr |
| May 25, 7:16 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Christian, DeWitt, Fulton and 21 more | 7 hr |
| May 26, 12:39 AM CDT | Severe Thunderstorm Watch | SPC | Champaign, Coles, Douglas, Edgar, Ford, Iroquois and 3 more | 3 hr |
| May 28, 12:01 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, DeWitt and 23 more | 5 hr |
| May 28, 5:22 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, DeWitt, Fulton, Hancock, Henderson, Henry and 14 more | 5 hr |
| May 28, 8:48 PM CDT | Severe Thunderstorm Watch | SPC | Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston | 4 hr |
| May 29, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 3 hr |
| Jun 1, 2:23 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 6 more | 6 hr |
| Jun 1, 3:33 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 15 more | 7 hr |
| Jun 4, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | Madison, Monroe, Randolph, Saint Clair | 6 hr |
| Jun 5, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 38 more | 7 hr |
| Jun 5, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 6 more | 7 hr |
| Jun 15, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Mercer, Rock Island | 8 hr |
| Jun 15, 7:07 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Carroll, Cass, Champaign and 28 more | 7 hr |
| Jun 16, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 16 more | 8 hr |
| Jun 19, 2:11 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 6 hr |
| Jun 21, 8:28 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 18 more | 9 hr |
| Jun 21, 12:06 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Coles, Crawford, Cumberland, DeWitt and 23 more | 6 hr |
| Jun 21, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 6 hr |
| Jun 23, 1:02 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hamilton, Hardin, Johnson, Massac and 6 more | 7 hr |
| Jun 25, 1:52 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more | 7 hr |
| Jun 25, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 6 more | 5 hr |
| Jun 27, 12:23 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Stephenson | 6 hr |
| Jun 27, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more | 5 hr |
| Jun 28, 11:23 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Greene, Hancock, Henderson and 8 more | 7 hr |
| Jun 30, 11:43 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Champaign, Cook, DeKalb and 29 more | 6 hr |
| Jun 30, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Stephenson | 4 hr |
| Jun 30, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 8 more | 4 hr |
| Jun 30, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Henderson, Henry, Mercer, Rock Island, Warren and 1 more | 3 hr |
| Jun 30, 6:22 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Gallatin, Hamilton, Saline, Wabash, Wayne and 1 more | 2 hr |
| Jul 17, 2:27 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 14 more | 4 hr |
| Jul 17, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Clinton, Fayette, Franklin, Gallatin and 20 more | 4 hr |
| Jul 20, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 8 more | 4 hr |
| Jul 20, 7:13 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 10 more | 4 hr |
| Aug 6, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Clay, Clinton, Crawford, Edwards and 28 more | 7 hr |
| Aug 18, 6:06 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 18 more | 6 hr |
| Aug 18, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 23 more | 8 hr |
| Aug 20, 6:18 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Bureau, Calhoun, Carroll and 69 more | 11 hr |
| Aug 20, 1:53 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 5 hr |
| Aug 26, 2:51 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Jackson, Monroe, Perry, Pulaski, Randolph and 3 more | 4 hr |
| Aug 30, 3:44 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clinton, Madison, Monroe, Randolph, Saint Clair and 1 more | 4 hr |
| Sep 12, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | Mercer, Rock Island | 6 hr |
| Sep 12, 6:40 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Henderson and 19 more | 7 hr |
| Sep 27, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Stephenson | 7 hr |
| Oct 1, 6:05 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Jo Daviess, Ogle, Stephenson, Winnebago | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Monroe County15
- Saint Clair County15
- Randolph County14
- Madison County13
- Bond County11
- Clinton County11
- Washington County11
- Carroll County11
- Adams County11
- Brown County11
- Calhoun County10
- Fayette County10
- Jackson County10
- Jersey County10
- Perry County10
- Union County10
- Williamson County10
- Ogle County10
- Cass County10
- Henderson County10
- Menard County10
- Schuyler County10
- Hamilton County10
- White County10
- Alexander County9
- Franklin County9
- Greene County9
- Jefferson County9
- Macoupin County9
- Marion County9
- Pulaski County9
- Morgan County9
- Piatt County9
- Sangamon County9
- Scott County9
- DeWitt County9
- Lawrence County9
- DeKalb County9
- Henry County9
- Kane County9
62 more counties
- Lee County9
- Mercer County9
- Hancock County9
- McDonough County9
- Mason County9
- Pike County9
- Warren County9
- Gallatin County9
- Saline County9
- Wayne County9
- Johnson County8
- Montgomery County8
- Champaign County8
- Christian County8
- Clark County8
- Clay County8
- Coles County8
- Douglas County8
- Edgar County8
- Jasper County8
- Macon County8
- Vermilion County8
- Crawford County8
- Bureau County8
- Knox County8
- Rock Island County8
- Whiteside County8
- Richland County8
- Fulton County8
- Peoria County8
- Boone County8
- Winnebago County8
- Edwards County8
- Wabash County8
- Jo Daviess County8
- Stephenson County8
- Effingham County7
- Moultrie County7
- Ford County7
- Grundy County7
- Iroquois County7
- Livingston County7
- McLean County7
- Cook County7
- DuPage County7
- Putnam County7
- Stark County7
- Logan County7
- Tazewell County7
- Woodford County7
- McHenry County7
- Hardin County7
- Massac County7
- Pope County7
- Cumberland County6
- Kankakee County6
- Will County6
- Kendall County6
- LaSalle County6
- Marshall County6
- Lake County6
- Shelby County5
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.