Alert archive / Illinois / Tornado Watches / 2009
Tornado Watches in Illinois, August 2009
4 tornado watches in August 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 August 2009. Tap one for its archive.
- Tornado Watches
- 4
- Busiest day
- August 19, 20094 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 |
|---|---|---|---|---|
| Aug 19, 12:49 PM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Cass, Champaign, Christian and 52 more | 6 hr |
| Aug 19, 3:05 PM CDT | Tornado Watch | SPC | Champaign, Christian, Coles, Douglas, Edgar, Moultrie and 2 more | 2 hr |
| Aug 19, 4:49 PM CDT | Tornado Watch | SPC | Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more | 5 hr |
| Aug 19, 5:11 PM CDT | Tornado Watch | SPC | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bureau County2
- Champaign County2
- Christian County2
- Coles County2
- Douglas County2
- Edgar County2
- Henry County2
- Mercer County2
- Moultrie County2
- Putnam County2
- Rock Island County2
- Shelby County2
- Vermilion County2
- Whiteside County2
- Adams County1
- Brown County1
- Cass County1
- Cook County1
- DeKalb County1
- DeWitt County1
- DuPage County1
- Ford County1
- Fulton County1
- Greene County1
- Grundy County1
- Hancock County1
- Henderson County1
- Iroquois County1
- Jersey County1
- Kane County1
- Kankakee County1
- Kendall County1
- Knox County1
- LaSalle County1
- Lee County1
- Livingston County1
- Logan County1
- McDonough County1
- McLean County1
- Macon County1
29 more counties
- Macoupin County1
- Marshall County1
- Mason County1
- Menard County1
- Montgomery County1
- Morgan County1
- Ogle County1
- Peoria County1
- Piatt County1
- Pike County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Stark County1
- Tazewell County1
- Warren County1
- Will County1
- Woodford County1
- Carroll County1
- Jo Daviess County1
- Stephenson County1
- Clark County1
- Clay County1
- Crawford County1
- Cumberland County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Richland 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.