Alert archive / Illinois / Tornado Watches / 2018
Tornado Watches in Illinois, December 2018
1 tornado watches in December 2018. 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 December 2018. Tap one for its archive.
- Tornado Watches
- 1
- Busiest day
- December 1, 20181 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 |
|---|---|---|---|---|
| Dec 1, 2:16 PM CST | Tornado Watch | SPC | Adams, Brown, Calhoun, Cass, Christian, DeWitt and 23 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County1
- Brown County1
- Calhoun County1
- Cass County1
- Christian County1
- DeWitt County1
- Fulton County1
- Greene County1
- Hancock County1
- Jersey County1
- Knox County1
- Logan County1
- McDonough County1
- McLean County1
- Macon County1
- Macoupin County1
- Mason County1
- Menard County1
- Montgomery County1
- Morgan County1
- Peoria County1
- Piatt County1
- Pike County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Tazewell County1
- Warren County1
- Woodford County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.