Alert archive / Illinois / Severe Thunderstorm Watches / 2003
Severe Thunderstorm Watches in Illinois, July 2003
31 severe thunderstorm watches in July 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 July 2003. Tap one for its archive.
- Severe Thunderstorm Watches
- 31
- Busiest day
- July 18, 20035 severe thunderstorm watches
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| 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 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Iroquois County13
- Ford County12
- Kankakee County12
- Livingston County12
- Grundy County11
- Vermilion County11
- Champaign County10
- DeWitt County10
- LaSalle County10
- Logan County10
- McLean County10
- Putnam County10
- Tazewell County10
- Cook County9
- Macon County9
- Sangamon County9
- Will County9
- Woodford County9
- Winnebago County8
- Boone County8
- DuPage County8
- Lake County8
- McHenry County8
- Bureau County8
- Marshall County8
- Morgan County8
- Piatt County8
- Moultrie County8
- Jo Daviess County7
- Ogle County7
- DeKalb County7
- Kane County7
- Fulton County7
- Henry County7
- Mason County7
- Menard County7
- Peoria County7
- Kendall County7
- Christian County7
- Coles County7
62 more counties
- Douglas County7
- Lee County6
- Stephenson County6
- Stark County6
- Henderson County6
- Knox County6
- Cass County6
- Clark County6
- Cumberland County6
- Edgar County6
- Pike County6
- Scott County6
- Shelby County6
- Montgomery County6
- Greene County6
- Carroll County5
- Rock Island County5
- Warren County5
- Adams County5
- Brown County5
- Hancock County5
- McDonough County5
- Schuyler County5
- Jasper County5
- Macoupin County5
- Whiteside County4
- Mercer County4
- Crawford County4
- Effingham County4
- Jersey County4
- Franklin County4
- Saline County4
- Fayette County3
- Lawrence County3
- Clay County3
- Richland County3
- Calhoun County3
- Gallatin County3
- Hamilton County3
- Jefferson County3
- Marion County3
- Washington County3
- Williamson County3
- Saint Clair County3
- Monroe County3
- Bond County2
- Hardin County2
- Pope County2
- Wayne County2
- White County2
- Clinton County2
- Alexander County2
- Jackson County2
- Johnson County2
- Perry County2
- Pulaski County2
- Randolph County2
- Union County2
- Edwards County1
- Wabash County1
- Madison County1
- Massac County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.