Alert archive / Illinois / Mesoscale Discussions in 2007

Mesoscale Discussion 1944

September 7, 200720 counties in Illinois; Lake County, Newton County, Indiana; 8 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Sep 7, 2007, 7:14 AM CDT for 20 counties in Illinois; Lake County, Newton County, Indiana; 8 counties in Wisconsin. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Sep 7, 2007, 7:14 AM CDT (12:14 UTC)
Expired: Sep 7, 2007, 9:15 AM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 30 counties

Cook County, IL, DeKalb County, IL, DeWitt County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Livingston County, IL, Logan County, IL, McHenry County, IL, McLean County, IL, Menard County, IL, Tazewell County, IL, Will County, IL, Woodford County, IL, Lake County, IN, Newton County, IN, Kenosha County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Chicago radar (KLOT), 32 km from the middle of the area, began a volume at 12:14 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
Sep 7, 3:36 PM CDT	Mesoscale Discussion	SPC	Adams, Allen, DeKalb, Elkhart, Huntington, Kosciusko and 6 more	114 min

Nearby

Mesoscale Discussions in Illinois, 2007 Mesoscale Discussions in Wisconsin, 2007 Mesoscale Discussions in Indiana, 2007 Every mesoscale discussion in 2007

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.