Alert archive / Illinois / Tornado Watches / 2009
Tornado Watches in Illinois, September 2009
1 tornado watches in September 2009. 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 tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in September 2009. Tap one for its archive.
- Tornado Watches
- 1
- Busiest day
- September 28, 20091 tornado 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 27, 8:22 PM CDT | Tornado Watch | SPC | Boone, Bureau, Cass, Champaign, Christian, Clark and 39 more | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boone County1
- Bureau County1
- Cass County1
- Champaign County1
- Christian County1
- Clark County1
- Coles County1
- Cook County1
- Cumberland County1
- DeKalb County1
- DeWitt County1
- Douglas County1
- DuPage County1
- Edgar County1
- Ford County1
- Grundy County1
- Iroquois County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- LaSalle County1
- Lee County1
- Livingston County1
- Logan County1
- McHenry County1
- McLean County1
- Macon County1
- Marshall County1
- Mason County1
- Menard County1
- Morgan County1
- Moultrie County1
- Ogle County1
- Peoria County1
- Piatt County1
- Putnam County1
- Sangamon County1
- Shelby County1
- Stark County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.