Alert archive / Illinois / Mesoscale Discussions / 2015
Mesoscale Discussions in Illinois, March 2015
5 mesoscale discussions in March 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 March 2015. Tap one for its archive.
- Mesoscale Discussions
- 5
- Busiest day
- March 23, 20152 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 |
|---|---|---|---|---|
| Mar 4, 1:34 PM CST | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 4 hr |
| Mar 23, 12:47 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Lee, McHenry and 3 more | 4 hr |
| Mar 23, 4:58 AM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kankakee and 7 more | 5 hr |
| Mar 25, 6:46 PM CDT | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 59 min |
| Mar 25, 9:23 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more | 97 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County3
- Johnson County3
- Massac County3
- Pope County3
- Pulaski County3
- Union County3
- Hardin County2
- Boone County2
- DeKalb County2
- McHenry County2
- Ogle County2
- Stephenson County2
- Winnebago County2
- Carroll County1
- Jo Daviess County1
- Lee County1
- Cook County1
- DuPage County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- Will County1
- Gallatin County1
- Saline 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.