Alert archive / Illinois / Mesoscale Discussions / 2018
Mesoscale Discussions in Illinois, February 2018
9 mesoscale discussions in February 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in February 2018. Tap one for its archive.
- Mesoscale Discussions
- 9
- Busiest day
- February 5, 20182 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 |
|---|---|---|---|---|
| Feb 5, 11:36 AM CST | Mesoscale Discussion | SPC | Henderson, Mercer, Rock Island, Warren | 6 hr |
| Feb 5, 4:57 PM CST | Mesoscale Discussion | SPC | Bureau, DeWitt, Ford, Fulton, Grundy, Hancock and 25 more | 4 hr |
| Feb 6, 6:08 PM CST | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 4 more | 4 hr |
| Feb 6, 9:42 PM CST | Mesoscale Discussion | SPC | Alexander, Clay, Crawford, Edwards, Franklin, Gallatin and 20 more | 5 hr |
| Feb 8, 9:07 PM CST | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 10 more | 6 hr |
| Feb 9, 3:08 AM CST | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Kane and 10 more | 6 hr |
| Feb 15, 5:51 PM CST | Mesoscale Discussion | SPC | Clark, Crawford | 2 hr |
| Feb 20, 9:18 PM CST | Mesoscale Discussion | SPC | Brown, Calhoun, Cass, Christian, Cook, DeWitt and 32 more | 6 hr |
| Feb 24, 2:58 PM CST | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 62 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Kendall County4
- Will County4
- Rock Island County3
- Lee County3
- Whiteside County3
- Alexander County3
- Massac County3
- Pulaski County3
- Cook County3
- DuPage County3
- Kane County3
- Henderson County2
- Mercer County2
- Warren County2
- DeWitt County2
- Ford County2
- Fulton County2
- Grundy County2
- Kankakee County2
- LaSalle County2
- Livingston County2
- Logan County2
- McLean County2
- Marshall County2
- Mason County2
- Peoria County2
- Putnam County2
- Schuyler County2
- Stark County2
- Tazewell County2
- Woodford County2
- Jackson County2
- Johnson County2
- Pope County2
- Saline County2
- Union County2
- Williamson County2
- Crawford County2
- Boone County2
- Carroll County2
47 more counties
- DeKalb County2
- Lake County2
- McHenry County2
- Ogle County2
- Stephenson County2
- Winnebago County2
- Bureau County1
- Hancock County1
- Henry County1
- Iroquois County1
- Knox County1
- McDonough County1
- Randolph County1
- Clay County1
- Edwards County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jasper County1
- Jefferson County1
- Lawrence County1
- Marion County1
- Perry County1
- Richland County1
- Wabash County1
- Washington County1
- Wayne County1
- White County1
- Jo Daviess County1
- Clark County1
- Brown County1
- Calhoun County1
- Cass County1
- Christian County1
- Greene County1
- Jersey County1
- Macon County1
- Macoupin County1
- Madison County1
- Menard County1
- Montgomery County1
- Morgan County1
- Piatt County1
- Pike County1
- Sangamon County1
- Scott County1
Nearby
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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.