Alert archive / Illinois / Mesoscale Discussions / 2017
Mesoscale Discussions in Illinois, February 2017
9 mesoscale discussions in February 2017. 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 2017. Tap one for its archive.
- Mesoscale Discussions
- 9
- Busiest day
- February 28, 20174 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 6, 11:20 PM CST | Mesoscale Discussion | SPC | Brown, Cass, Champaign, Christian, Clark, Clay and 36 more | 115 min |
| Feb 7, 1:52 AM CST | Mesoscale Discussion | SPC | Alexander | 113 min |
| Feb 7, 4:57 PM CST | Mesoscale Discussion | SPC | Massac | 2 hr |
| Feb 23, 9:48 PM CST | Mesoscale Discussion | SPC | Henderson | 2 hr |
| Feb 24, 2:07 PM CST | Mesoscale Discussion | SPC | Clark, Crawford, Cumberland, Edgar, Vermilion | 2 hr |
| Feb 28, 1:46 PM CST | Mesoscale Discussion | SPC | Alexander, Franklin, Jackson, Jefferson, Johnson, Massac and 8 more | 2 hr |
| Feb 28, 2:03 PM CST | Mesoscale Discussion | SPC | Bureau, DeKalb, DuPage, Ford, Fulton, Grundy and 24 more | 2 hr |
| Feb 28, 5:24 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more | 96 min |
| Feb 28, 5:28 PM CST | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 2 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Ford County3
- Fulton County3
- Iroquois County3
- McLean County3
- Peoria County3
- Tazewell County3
- Warren County3
- Woodford County3
- Alexander County3
- Massac County3
- Henderson County3
- Clark County2
- Crawford County2
- Cumberland County2
- Edgar County2
- Hancock County2
- McDonough County2
- Vermilion County2
- Jackson County2
- Johnson County2
- Pulaski County2
- Union County2
- Williamson County2
- Bureau County2
- DeKalb County2
- DuPage County2
- Grundy County2
- Henry County2
- Kane County2
- Kankakee County2
- Kendall County2
- Knox County2
- LaSalle County2
- Lee County2
- Livingston County2
- Marshall County2
- Mercer County2
- Putnam County2
- Rock Island County2
- Stark County2
43 more counties
- Whiteside County2
- Will County2
- Brown County1
- Cass County1
- Champaign County1
- Christian County1
- Clay County1
- Coles County1
- DeWitt County1
- Douglas County1
- Edwards County1
- Effingham County1
- Fayette County1
- Jasper County1
- Lawrence County1
- Logan County1
- Macon County1
- Mason County1
- Menard County1
- Montgomery County1
- Morgan County1
- Moultrie County1
- Piatt County1
- Richland County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Shelby County1
- Wabash County1
- Franklin County1
- Jefferson County1
- Monroe County1
- Perry County1
- Randolph County1
- Saint Clair County1
- Washington County1
- Boone County1
- Carroll County1
- Cook County1
- Lake County1
- McHenry County1
- Ogle County1
- Pope County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.