Alert archive / Illinois / Mesoscale Discussions / 2004
Mesoscale Discussions in Illinois, March 2004
9 mesoscale discussions in March 2004. 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 2004. Tap one for its archive.
- Mesoscale Discussions
- 9
- Busiest day
- March 1, 20042 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 1, 10:06 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Carroll, Cass, Fulton and 22 more | 84 min |
| Mar 1, 1:30 PM CST | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 8 more | 60 min |
| Mar 4, 9:24 PM CST | Mesoscale Discussion | SPC | Alexander | 66 min |
| Mar 15, 12:56 PM CST | Mesoscale Discussion | SPC | Henderson, Henry, Knox, Mercer, Rock Island, Stark and 1 more | 4 hr |
| Mar 16, 3:16 AM CST | Mesoscale Discussion | SPC | Champaign, Edgar, Vermilion | 4 hr |
| Mar 20, 9:20 AM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 1 more | 85 min |
| Mar 24, 9:34 AM CST | Mesoscale Discussion | SPC | Bureau, Henry, Knox, LaSalle, Lee, Marshall and 8 more | 56 min |
| Mar 28, 12:18 PM CST | Mesoscale Discussion | SPC | Monroe, Randolph | 117 min |
| Mar 28, 2:43 PM CST | Mesoscale Discussion | SPC | Cook, DuPage, Grundy, Kane, Kankakee, Kendall and 3 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Henry County3
- Knox County3
- Mercer County3
- Rock Island County3
- Stark County3
- Warren County3
- Bureau County2
- Henderson County2
- Lee County2
- Marshall County2
- Peoria County2
- Putnam County2
- Whiteside County2
- Woodford County2
- Cook County2
- DuPage County2
- Grundy County2
- Kane County2
- Kankakee County2
- Kendall County2
- Lake County2
- Livingston County2
- Will County2
- Alexander County2
- Adams County1
- Brown County1
- Carroll County1
- Cass County1
- Fulton County1
- Hancock County1
- Jo Daviess County1
- McDonough County1
- Mason County1
- Ogle County1
- Schuyler County1
- Stephenson County1
- Tazewell County1
- Winnebago County1
- Boone County1
- DeKalb County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.