Alert archive / Illinois / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Illinois, 2015
34 severe thunderstorm watches in 2015. 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 2015. Tap one for its archive.
- Severe Thunderstorm Watches
- 34
- Busiest month
- June14 severe thunderstorm watches
- Busiest day
- June 21, 20153 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 25, 7:02 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 7 hr |
| Apr 2, 10:41 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more | 6 hr |
| Apr 7, 8:34 AM CDT | Severe Thunderstorm Watch | SPC | Clinton, Franklin, Jackson, Jefferson, Johnson, Madison and 7 more | 7 hr |
| Apr 7, 1:37 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more | 5 hr |
| Apr 8, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Champaign, Christian, Clark, Clay and 42 more | 5 hr |
| May 10, 4:02 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Calhoun, Clinton, Fayette, Franklin and 23 more | 4 hr |
| Jun 7, 2:36 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cass, Champaign, Coles, DeKalb and 33 more | 5 hr |
| Jun 7, 3:33 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Hancock, Henderson | 4 hr |
| Jun 7, 7:48 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 33 more | 7 hr |
| Jun 11, 8:25 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 7 more | 5 hr |
| Jun 13, 4:35 PM CDT | Severe Thunderstorm Watch | SPC | Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 4 more | 2 hr |
| Jun 20, 10:13 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 7 more | 4 hr |
| Jun 21, 12:12 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Pike | 5 hr |
| Jun 21, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson and 7 more | 5 hr |
| Jun 22, 8:08 AM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Stephenson | 4 hr |
| Jun 22, 9:39 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Ford and 19 more | 3 hr |
| Jun 22, 7:57 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Pike | 4 hr |
| Jun 24, 9:26 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Carroll, Cass, Fulton and 22 more | 6 hr |
| Jun 25, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Christian, Clay, Clinton, Crawford and 32 more | 9 hr |
| Jun 26, 12:18 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
| Jul 11, 1:39 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Cass, Champaign, Christian, Coles, Cumberland and 26 more | 6 hr |
| Jul 11, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Christian, Clay, Clinton, Effingham and 20 more | 6 hr |
| Jul 13, 4:14 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 18 more | 6 hr |
| Jul 13, 9:17 AM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Coles, Crawford, Cumberland, DeWitt and 16 more | 4 hr |
| Jul 13, 6:20 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 4 hr |
| Jul 13, 9:19 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 9 more | 7 hr |
| Jul 14, 2:06 AM CDT | Severe Thunderstorm Watch | SPC | Clark, Coles, Crawford, Cumberland, Jasper, Lawrence and 2 more | 5 hr |
| Jul 16, 4:55 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Cass, Champaign, DeWitt and 34 more | 7 hr |
| Jul 18, 11:19 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 16 more | 8 hr |
| Jul 20, 6:42 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 6 more | 5 hr |
| Aug 2, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 24 more | 5 hr |
| Aug 9, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Monroe, Randolph | 4 hr |
| Aug 18, 1:15 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 25 more | 8 hr |
| Nov 11, 6:16 PM CST | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pike County13
- Johnson County10
- Williamson County10
- Calhoun County10
- Hardin County9
- Jackson County9
- Pope County9
- Saline County9
- Clinton County9
- Franklin County9
- Monroe County9
- Randolph County9
- Saint Clair County9
- Washington County9
- Greene County9
- Macoupin County9
- Montgomery County9
- Morgan County9
- Scott County9
- Adams County9
- Brown County9
- Gallatin County8
- Union County8
- Hamilton County8
- Jefferson County8
- Marion County8
- Perry County8
- White County8
- Madison County8
- Bond County8
- Fayette County8
- Jersey County8
- Logan County8
- Macon County8
- Moultrie County8
- Piatt County8
- Cass County8
- Iroquois County8
- LaSalle County8
- Livingston County8
62 more counties
- Massac County7
- Wabash County7
- Champaign County7
- Christian County7
- Coles County7
- DeWitt County7
- Menard County7
- Sangamon County7
- Shelby County7
- Vermilion County7
- Ford County7
- Grundy County7
- Kankakee County7
- Kendall County7
- Schuyler County7
- Will County7
- Alexander County6
- Pulaski County6
- Edwards County6
- Wayne County6
- Cumberland County6
- Douglas County6
- Edgar County6
- Jasper County6
- McLean County6
- Bureau County6
- DeKalb County6
- Lee County6
- Marshall County6
- Mason County6
- Ogle County6
- Putnam County6
- Stark County6
- Tazewell County6
- Clark County5
- Crawford County5
- Effingham County5
- Lawrence County5
- Richland County5
- Boone County5
- Fulton County5
- Knox County5
- Warren County5
- Winnebago County5
- Woodford County5
- Henderson County5
- Cook County5
- DuPage County5
- Kane County5
- Clay County4
- McDonough County4
- Peoria County4
- Hancock County4
- Carroll County4
- Henry County4
- Lake County4
- McHenry County4
- Whiteside County4
- Jo Daviess County3
- Stephenson County3
- Rock Island County3
- Mercer County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.