Alert archive / Illinois / Severe Thunderstorm Watches / 2001
Severe Thunderstorm Watches in Illinois, September 2001
9 severe thunderstorm watches in September 2001. 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 2001. Tap one for its archive.
- Severe Thunderstorm Watches
- 9
- Busiest day
- September 8, 20013 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 7, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Carroll, DeKalb, Jo Daviess, Kane, Lee and 5 more | 6 hr |
| Sep 7, 8:45 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Henry, Mercer, Rock Island, Warren | 4 hr |
| Sep 7, 8:45 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Fulton, Hancock, McDonough, Pike and 1 more | 5 hr |
| Sep 7, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Henderson, Henry, Jo Daviess, Knox and 10 more | 4 hr |
| Sep 18, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Clay, Clinton, Crawford, Edwards and 26 more | 6 hr |
| Sep 20, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Henderson, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more | 6 hr |
| Sep 20, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Hancock | 5 hr |
| Sep 20, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Christian, DeWitt and 18 more | 4 hr |
| Sep 23, 3:15 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 5 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carroll County3
- Jo Daviess County3
- Stephenson County3
- Whiteside County3
- Henderson County3
- Mercer County3
- Rock Island County3
- Hancock County3
- Lee County2
- Ogle County2
- Winnebago County2
- Henry County2
- Warren County2
- Adams County2
- Brown County2
- Fulton County2
- McDonough County2
- Pike County2
- Schuyler County2
- Alexander County2
- Gallatin County2
- Hardin County2
- Johnson County2
- Massac County2
- Pope County2
- Pulaski County2
- Saline County2
- Union County2
- White County2
- Williamson County2
- Boone County1
- DeKalb County1
- Kane County1
- McHenry County1
- Bureau County1
- Knox County1
- Peoria County1
- Stark County1
- Bond County1
- Clay County1
36 more counties
- Clinton County1
- Crawford County1
- Edwards County1
- Effingham County1
- Fayette County1
- Franklin County1
- Hamilton County1
- Jackson County1
- Jasper County1
- Jefferson County1
- Lawrence County1
- Marion County1
- Montgomery County1
- Perry County1
- Randolph County1
- Richland County1
- Wabash County1
- Washington County1
- Wayne County1
- Calhoun County1
- Cass County1
- Christian County1
- DeWitt County1
- Greene County1
- Jersey County1
- Logan County1
- McLean County1
- Macon County1
- Macoupin County1
- Mason County1
- Menard County1
- Morgan County1
- Piatt County1
- Sangamon County1
- Scott County1
- Tazewell County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20002002
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.