Alert archive / Illinois / Mesoscale Discussions in 2024
Mesoscale Discussion 1639
The Storm Prediction Center issued this mesoscale discussion at Jul 15, 2024, 6:06 PM CDT for 4 states. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Jul 15, 2024, 6:06 PM CDT (23:06 UTC)
- Expired
- Jul 15, 2024, 8:00 PM CDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch likely
- Chance of a watch
- 95%
All 43 counties
Boone County, IL, Bureau County, IL, Champaign County, IL, Cook County, IL, DeKalb County, IL, DeWitt County, IL, DuPage County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McHenry County, IL, McLean County, IL, Menard County, IL, Peoria County, IL, Piatt County, IL, Putnam County, IL, Tazewell County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, LaPorte County, IN, Newton County, IN, Porter County, IN, Berrien County, MI, Kenosha County, WI, Racine County, WI, Rock County, WI, Walworth County, WI
The radar
The Chicago radar (KLOT), 76 km from the middle of the area, began a volume at 23:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 7:51 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 15 more | 84 min |
| Jul 14, 9:36 PM CDT | Mesoscale Discussion | SPC | Cook, DuPage, Kankakee, Kendall, Lake, Will | 54 min |
| Jul 14, 10:52 PM CDT | Mesoscale Discussion | SPC | Bureau, Ford, Grundy, Henry, Iroquois, Knox and 9 more | 83 min |
| Jul 14, 11:59 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Coles, DeWitt, Douglas, Edgar, Logan and 4 more | 4 hr |
| Jul 15, 12:54 AM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Ford, Fulton, Grundy, Iroquois and 14 more | 2 hr |
| Jul 15, 1:59 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 32 more | 3 hr |
| Jul 15, 3:18 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 18 more | 8 hr |
| Jul 15, 5:26 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Fulton, Hancock and 19 more | 2 hr |
| Jul 15, 6:53 PM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, Cass, Champaign, Cook and 39 more | 6 hr |
| Jul 15, 6:55 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henry, Knox, Lee, Mercer and 6 more | 95 min |
| Jul 14, 10:50 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Elkhart, Fulton, Huntington, Kosciusko, LaGrange and 10 more | 4 hr |
| Jul 15, 2:18 PM CDT | Mesoscale Discussion | SPC | Bartholomew, Brown, Dearborn, Decatur, Fayette, Franklin and 10 more | 117 min |
| Jul 15, 3:06 PM CDT | Mesoscale Discussion | SPC | Gogebic, Houghton, Iron, Ontonagon | 114 min |
Nearby
Mesoscale Discussions in Illinois, 2024Mesoscale Discussions in Indiana, 2024Mesoscale Discussions in Wisconsin, 2024Every mesoscale discussion in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.