Alert archive / Illinois / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Illinois, 2003
78 severe thunderstorm watches in 2003. 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 2003. Tap one for its archive.
- Severe Thunderstorm Watches
- 78
- Busiest month
- July31 severe thunderstorm watches
- Busiest day
- July 18, 20035 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 8, 2:50 PM CST | Severe Thunderstorm Watch | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 16 more | 6 hr |
| Mar 13, 12:00 AM CST | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Jersey, Macoupin and 5 more | 5 hr |
| Mar 20, 12:45 PM CST | Severe Thunderstorm Watch | SPC | Clay, Clinton, Edwards, Franklin, Gallatin, Hamilton and 15 more | 6 hr |
| Mar 28, 1:20 PM CST | Severe Thunderstorm Watch | SPC | Hardin, Wabash | 6 hr |
| Apr 20, 1:50 AM CDT | Severe Thunderstorm Watch | SPC | Jackson, Monroe, Perry, Randolph, Washington | 5 hr |
| Apr 20, 12:20 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Edgar, Edwards, Hamilton, Jasper and 6 more | 6 hr |
| Apr 20, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Saline | 5 hr |
| Apr 28, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Jackson, Monroe, Perry, Randolph and 3 more | 5 hr |
| Apr 29, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Jackson, Monroe, Perry, Pulaski, Randolph and 2 more | 5 hr |
| Apr 30, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Cass, Champaign, DeWitt and 30 more | 5 hr |
| Apr 30, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cook, DeKalb, DuPage, Grundy, Henry and 15 more | 5 hr |
| Apr 30, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, DeWitt, Ford, Fulton and 22 more | 5 hr |
| May 1, 9:35 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 9 more | 5 hr |
| May 1, 12:15 PM CDT | Severe Thunderstorm Watch | SPC | Gallatin, Hardin | 5 hr |
| May 4, 4:50 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Calhoun, Hancock, Monroe, Pike | 6 hr |
| May 4, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 35 more | 6 hr |
| May 4, 11:05 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 33 more | 5 hr |
| May 6, 11:55 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Clay, Clinton, Crawford, Edwards, Effingham and 21 more | 4 hr |
| May 8, 12:20 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 42 more | 4 hr |
| May 8, 7:55 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Hancock, Henderson, Pike, Scott | 5 hr |
| May 8, 9:10 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Cass, Champaign, DeKalb, DeWitt and 32 more | 6 hr |
| May 9, 12:05 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 28 more | 6 hr |
| May 9, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Cass, Champaign, DeWitt, Ford, Fulton and 22 more | 5 hr |
| May 10, 5:50 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 25 more | 5 hr |
| May 14, 1:10 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Bureau, Cass, Champaign, DeWitt, Douglas and 33 more | 6 hr |
| May 14, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Mercer | 5 hr |
| May 14, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 35 more | 5 hr |
| May 14, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 21 more | 4 hr |
| May 28, 2:10 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Champaign, Christian, Coles, Cook and 30 more | 6 hr |
| Jun 10, 7:15 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more | 6 hr |
| Jun 10, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 23 more | 5 hr |
| Jun 10, 6:35 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clay, Clinton, Crawford, Edwards, Effingham and 22 more | 4 hr |
| Jun 25, 12:05 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Henderson, Henry, Jo Daviess, Mercer, Ogle and 5 more | 6 hr |
| Jun 25, 12:45 PM CDT | Severe Thunderstorm Watch | SPC | Hancock | 5 hr |
| Jun 25, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Boone, Brown, Bureau, Calhoun, Cass and 44 more | 5 hr |
| Jul 4, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | Carroll, Jo Daviess, Lee, Ogle, Rock Island, Stephenson and 2 more | 6 hr |
| Jul 4, 5:20 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 1 more | 4 hr |
| Jul 4, 2:20 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, DeWitt, Ford, Fulton, Grundy and 21 more | 6 hr |
| Jul 4, 11:25 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 6 more | 7 hr |
| Jul 5, 3:40 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 11 more | 4 hr |
| Jul 5, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 36 more | 6 hr |
| Jul 6, 1:10 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Christian, Clark, Coles, Cumberland, DeWitt and 14 more | 5 hr |
| Jul 6, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 9 more | 5 hr |
| Jul 7, 2:40 AM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess | 4 hr |
| Jul 7, 8:45 AM CDT | Severe Thunderstorm Watch | SPC | Champaign, Cook, DeWitt, Ford, Grundy, Iroquois and 6 more | 4 hr |
| Jul 7, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | Rock Island | 5 hr |
| Jul 7, 7:40 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 20 more | 3 hr |
| Jul 7, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Cook, Iroquois, Kankakee, Lake, Vermilion | 5 hr |
| Jul 8, 9:50 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more | 5 hr |
| Jul 8, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 37 more | 5 hr |
| Jul 8, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Cass, Champaign, Christian, Clark, Clay and 27 more | 5 hr |
| Jul 9, 11:10 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, Clark, Coles, DeWitt, Douglas and 17 more | 6 hr |
| Jul 9, 8:20 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 43 more | 6 hr |
| Jul 9, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Christian, Greene, Jersey, Macoupin, Montgomery and 5 more | 6 hr |
| Jul 15, 8:35 AM CDT | Severe Thunderstorm Watch | SPC | Clay, Crawford, Edwards, Franklin, Gallatin, Hamilton and 13 more | 5 hr |
| Jul 17, 9:40 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, DeWitt, Ford, Grundy, Henry and 13 more | 5 hr |
| Jul 18, 4:30 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 38 more | 6 hr |
| Jul 18, 6:50 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Franklin, Jackson, Johnson, Monroe, Perry and 6 more | 5 hr |
| Jul 18, 9:55 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Franklin, Gallatin, Hamilton, Hardin and 15 more | 5 hr |
| Jul 18, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Greene, Jersey, Monroe | 5 hr |
| Jul 20, 4:25 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more | 5 hr |
| Jul 20, 10:15 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 12 more | 7 hr |
| Jul 20, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, DeWitt, Douglas and 21 more | 6 hr |
| Jul 27, 11:30 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, DuPage, Ford, Grundy, Iroquois, Kankakee and 10 more | 6 hr |
| Jul 31, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess | 6 hr |
| Jul 31, 5:40 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Jo Daviess, McHenry, Ogle, Stephenson and 1 more | 5 hr |
| Aug 1, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Boone, Brown, Bureau, Cass, DeKalb and 35 more | 6 hr |
| Aug 1, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more | 6 hr |
| Aug 2, 4:30 AM CDT | Severe Thunderstorm Watch | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 7 hr |
| Aug 2, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Christian, Clark, Clay, Clinton and 23 more | 6 hr |
| Aug 3, 2:20 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Clay, Clinton, Crawford, Edwards and 28 more | 6 hr |
| Aug 16, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Jo Daviess, Kane and 8 more | 6 hr |
| Aug 17, 3:10 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 31 more | 6 hr |
| Aug 20, 2:50 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Fulton, Hancock, Henderson, Henry, Jo Daviess and 8 more | 5 hr |
| Aug 25, 8:45 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Mercer, Rock Island, Warren | 5 hr |
| Sep 1, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Crawford, Edwards, Effingham, Hamilton and 6 more | 6 hr |
| Sep 26, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Bureau, Calhoun, Cass and 26 more | 6 hr |
| Sep 26, 6:10 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Logan County23
- Tazewell County23
- Kankakee County22
- Livingston County22
- Morgan County22
- Sangamon County22
- Cass County21
- McLean County21
- Menard County21
- Washington County20
- Brown County20
- DeWitt County20
- Fulton County20
- Iroquois County20
- Mason County20
- Putnam County20
- Woodford County20
- Pike County20
- Scott County20
- Monroe County19
- Montgomery County19
- Ford County19
- Grundy County19
- LaSalle County19
- Christian County19
- Macon County19
- Vermilion County18
- McDonough County18
- Marshall County18
- Will County18
- Fayette County17
- Franklin County17
- Hamilton County17
- Saline County17
- Adams County17
- Champaign County17
- Peoria County17
- Schuyler County17
- Moultrie County17
- Jasper County16
62 more counties
- Jefferson County16
- Richland County16
- Wayne County16
- Williamson County16
- Bond County16
- Clinton County16
- Macoupin County16
- Gallatin County16
- Perry County16
- Jackson County16
- Bureau County16
- Henderson County16
- Knox County16
- Piatt County16
- Greene County16
- Clay County15
- Coles County15
- Crawford County15
- Douglas County15
- Edwards County15
- White County15
- Calhoun County15
- Jersey County15
- Madison County15
- Randolph County15
- Saint Clair County15
- Hardin County15
- Hancock County15
- Henry County15
- Stark County15
- Warren County15
- Edgar County14
- Effingham County14
- Lawrence County14
- Marion County14
- Johnson County14
- Pope County14
- Union County14
- Kendall County14
- Winnebago County14
- Clark County13
- Shelby County13
- Cook County13
- DeKalb County13
- DuPage County13
- Ogle County13
- Cumberland County12
- Wabash County12
- Alexander County12
- Rock Island County12
- Kane County12
- Boone County12
- Mercer County11
- Lee County11
- Jo Daviess County11
- Stephenson County11
- Lake County11
- McHenry County11
- Massac County10
- Pulaski County10
- Whiteside County9
- Carroll County8
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20022004
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.