Alert archive / Illinois / Mesoscale Discussions / 2016
Mesoscale Discussions in Illinois, December 2016
5 mesoscale discussions in December 2016. 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 2016. Tap one for its archive.
- Mesoscale Discussions
- 5
- Busiest day
- December 11, 20162 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 10, 6:59 PM CST | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Iroquois and 11 more | 6 hr |
| Dec 11, 5:42 PM CST | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Kane, Kendall, Lake and 2 more | 4 hr |
| Dec 17, 1:00 PM CST | Mesoscale Discussion | SPC | Hardin, Massac, Pope | 2 hr |
| Dec 17, 5:32 PM CST | Mesoscale Discussion | SPC | Alexander, Clay, Crawford, Edwards, Franklin, Gallatin and 19 more | 6 hr |
| Dec 26, 3:31 PM CST | Mesoscale Discussion | SPC | Massac | 119 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Massac County3
- Cook County2
- DeKalb County2
- DuPage County2
- Kane County2
- Kendall County2
- Lake County2
- LaSalle County2
- Will County2
- Hardin County2
- Pope County2
- Boone County1
- Grundy County1
- Iroquois County1
- Kankakee County1
- Lee County1
- Livingston County1
- McHenry County1
- Ogle County1
- Winnebago County1
- Alexander County1
- Clay County1
- Crawford County1
- Edwards County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Jackson County1
- Jasper County1
- Jefferson County1
- Johnson County1
- Lawrence County1
- Perry County1
- Pulaski County1
- Randolph County1
- Richland County1
- Saline County1
- Union County1
- Wabash County1
- Wayne County1
2 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.