Alert archive / Illinois / Mesoscale Discussions in 2015

Mesoscale Discussion 2099

December 28, 20154 states

The Storm Prediction Center issued this mesoscale discussion at Dec 28, 2015, 5:26 AM CST for 4 states. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Dec 28, 2015, 5:26 AM CST (11:26 UTC)
Expired: Dec 28, 2015, 9:30 AM CST
In force: 4 hr
Issued by: the Storm Prediction Center

All 41 counties

Clinton County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Boone County, IL, Bureau County, IL, Carroll County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Henry County, IL, Kane County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, McHenry County, IL, Mercer County, IL, Ogle County, IL, Putnam County, IL, Rock Island County, IL, Stark County, IL, Stephenson County, IL, Whiteside County, IL, Will County, IL, Winnebago County, IL, Elkhart County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Noble County, IN, Porter County, IN, Saint Joseph County, IN, Starke County, IN, Whitley County, IN, Berrien County, MI, Cass County, MI, Saint Joseph County, MI

The radar

The Chicago radar (KLOT), 53 km from the middle of the area, began a volume at 11:26 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 text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 28, 12:13 PM CST	Mesoscale Discussion	SPC	Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 8 more	5 hr
Dec 28, 11:04 AM CST	Mesoscale Discussion	SPC	DeKalb, Elkhart, Kosciusko, LaGrange, LaPorte, Marshall and 4 more	6 hr
Dec 28, 3:35 AM CST	Mesoscale Discussion	SPC	Adair, Adams, Appanoose, Benton, Black Hawk, Boone and 32 more	6 hr
Dec 28, 3:42 PM CST	Mesoscale Discussion	SPC	Adair, Adams, Appanoose, Boone, Butler, Calhoun and 32 more	4 hr

Nearby

Mesoscale Discussions in Illinois, 2015 Mesoscale Discussions in Indiana, 2015 Mesoscale Discussions in Iowa, 2015 Every mesoscale discussion in 2015

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.