Alert archive / Illinois / Mesoscale Discussions / 2024
Mesoscale Discussions in Illinois, December 2024
2 mesoscale discussions in December 2024. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in December 2024. Tap one for its archive.
- Mesoscale Discussions
- 2
- Busiest day
- December 14, 20241 mesoscale discussions
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 14, 4:58 AM CST | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 13 more | 6 hr |
| Dec 16, 10:42 AM CST | Mesoscale Discussion | SPC | Hardin, Massac | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bureau County1
- Carroll County1
- Fulton County1
- Hancock County1
- Henderson County1
- Henry County1
- Jo Daviess County1
- Knox County1
- Lee County1
- McDonough County1
- Mercer County1
- Ogle County1
- Peoria County1
- Putnam County1
- Rock Island County1
- Stark County1
- Stephenson County1
- Warren County1
- Whiteside County1
- Hardin County1
- Massac County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.