Alert archive / Illinois / Mesoscale Discussions in 2011

Mesoscale Discussion 1717

July 24, 20117 counties in Illinois

The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2011, 6:15 AM CDT for 7 counties in Illinois. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jul 24, 2011, 6:15 AM CDT (11:15 UTC)
Expired: Jul 24, 2011, 8:45 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center

Counties DeKalb County, IL, DuPage County, IL, Kane County, IL, Kendall County, IL, Lee County, IL, Ogle County, IL, Will County, IL

The radar

The Chicago radar (KLOT), 55 km from the middle of the area, began a volume at 11:18 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
Jul 24, 11:21 AM CDT	Mesoscale Discussion	SPC	Christian, Fulton, Logan, Macon, Mason, Menard and 1 more	114 min
Jul 24, 12:42 PM CDT	Mesoscale Discussion	SPC	Bond, Clay, Clinton, Edwards, Hamilton, Jefferson and 8 more	2 hr
Jul 24, 12:42 PM CDT	Mesoscale Discussion	SPC	Bond, Clay, Clinton, Edwards, Hamilton, Jefferson and 8 more	2 hr
Jul 24, 4:55 PM CDT	Mesoscale Discussion	SPC	Alexander, Massac, Pulaski	2 hr

Nearby

Mesoscale Discussions in Illinois, 2011 Every mesoscale discussion in 2011

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.