Alert archive / Illinois / Mesoscale Discussions / 2015
Mesoscale Discussions in Illinois, November 2015
6 mesoscale discussions in November 2015. 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 November 2015. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- November 21, 20153 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 |
|---|---|---|---|---|
| Nov 11, 2:24 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Greene, Hancock and 12 more | 2 hr |
| Nov 11, 5:46 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DeWitt, Ford and 14 more | 59 min |
| Nov 11, 8:22 PM CST | Mesoscale Discussion | SPC | DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall and 3 more | 53 min |
| Nov 20, 7:33 PM CST | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson, Winnebago | 4 hr |
| Nov 21, 6:28 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 24 more | 4 hr |
| Nov 21, 6:32 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 24 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carroll County4
- DeKalb County4
- Grundy County4
- Kendall County4
- Stephenson County4
- Winnebago County4
- Fulton County3
- Henderson County3
- Henry County3
- Knox County3
- McDonough County3
- Mercer County3
- Rock Island County3
- Warren County3
- Boone County3
- Bureau County3
- LaSalle County3
- Lee County3
- Marshall County3
- Ogle County3
- Putnam County3
- DuPage County3
- Kane County3
- McHenry County3
- Will County3
- Livingston County2
- Cook County2
- Lake County2
- Peoria County2
- Stark County2
- Whiteside County2
- Adams County1
- Brown County1
- Cass County1
- Greene County1
- Hancock County1
- Mason County1
- Morgan County1
- Pike County1
- Schuyler County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.