Alert archive / Illinois / Severe Thunderstorm Watches / 2003
Severe Thunderstorm Watches in Illinois, August 2003
9 severe thunderstorm watches in August 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 August 2003. Tap one for its archive.
- Severe Thunderstorm Watches
- 9
- Busiest day
- August 1, 20032 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 |
|---|---|---|---|---|
| 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 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County4
- Johnson County4
- Massac County4
- Pope County4
- Pulaski County4
- Union County4
- Henderson County3
- Mercer County3
- Rock Island County3
- Warren County3
- Franklin County3
- Gallatin County3
- Hamilton County3
- Hardin County3
- Jackson County3
- Jefferson County3
- Perry County3
- Saline County3
- Washington County3
- Wayne County3
- Williamson County3
- Bond County3
- Clay County3
- Clinton County3
- Crawford County3
- Effingham County3
- Fayette County3
- Jasper County3
- Marion County3
- Richland County3
- Boone County2
- DeKalb County2
- DuPage County2
- Fulton County2
- Hancock County2
- Henry County2
- Kane County2
- Kankakee County2
- Kendall County2
- Knox County2
57 more counties
- McDonough County2
- Morgan County2
- Ogle County2
- Pike County2
- Scott County2
- Stark County2
- Whiteside County2
- Will County2
- Winnebago County2
- Monroe County2
- Randolph County2
- Christian County2
- Clark County2
- Coles County2
- Cumberland County2
- Madison County2
- Montgomery County2
- Moultrie County2
- Shelby County2
- Edwards County2
- Lawrence County2
- Wabash County2
- White County2
- Jo Daviess County2
- Stephenson County2
- Adams County1
- Brown County1
- Bureau County1
- Cass County1
- Grundy County1
- LaSalle County1
- Lee County1
- Livingston County1
- Logan County1
- McLean County1
- Marshall County1
- Mason County1
- Menard County1
- Peoria County1
- Putnam County1
- Schuyler County1
- Tazewell County1
- Woodford County1
- Calhoun County1
- Douglas County1
- Edgar County1
- Greene County1
- Jersey County1
- Macon County1
- Macoupin County1
- Piatt County1
- Sangamon County1
- Saint Clair County1
- Cook County1
- Lake County1
- McHenry County1
- Carroll 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.