Alert archive / Illinois / Severe Thunderstorm Watches / 2012
Severe Thunderstorm Watches in Illinois, September 2012
10 severe thunderstorm watches in September 2012. 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 September 2012. Tap one for its archive.
- Severe Thunderstorm Watches
- 10
- Busiest day
- September 5, 20124 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 |
|---|---|---|---|---|
| Sep 4, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess | 8 hr |
| Sep 4, 8:51 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Grundy and 13 more | 5 hr |
| Sep 5, 9:37 AM CDT | Severe Thunderstorm Watch | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 24 more | 6 hr |
| Sep 5, 1:43 PM CDT | Severe Thunderstorm Watch | SPC | Hardin | 5 hr |
| Sep 5, 2:29 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 8 hr |
| Sep 6, 12:28 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Hardin, Jackson, Johnson, Massac and 9 more | 9 hr |
| Sep 7, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 6 hr |
| Sep 7, 3:41 PM CDT | Severe Thunderstorm Watch | SPC | Christian, Clark, Clay, Coles, Crawford, Cumberland and 8 more | 6 hr |
| Sep 7, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
| Sep 25, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Clinton, Edwards, Fayette, Franklin, Hamilton and 11 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clinton County4
- Perry County4
- Saint Clair County4
- Washington County4
- Bond County3
- Edwards County3
- Fayette County3
- Franklin County3
- Hamilton County3
- Jackson County3
- Jefferson County3
- Marion County3
- Wabash County3
- Wayne County3
- White County3
- Williamson County3
- Hardin County3
- Alexander County3
- Johnson County3
- Massac County3
- Pope County3
- Pulaski County3
- Union County3
- Monroe County3
- Randolph County3
- Jo Daviess County2
- Clark County2
- Clay County2
- Coles County2
- Crawford County2
- Cumberland County2
- Edgar County2
- Effingham County2
- Gallatin County2
- Jasper County2
- Lawrence County2
- Moultrie County2
- Richland County2
- Saline County2
- Shelby County2
26 more counties
- Madison County2
- Boone County1
- Carroll County1
- Cook County1
- DeKalb County1
- DuPage County1
- Grundy County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- LaSalle County1
- Lee County1
- McHenry County1
- Ogle County1
- Stephenson County1
- Whiteside County1
- Will County1
- Winnebago County1
- Calhoun County1
- Greene County1
- Jersey County1
- Macoupin County1
- Montgomery County1
- Christian County1
- Douglas County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.