Alert archive / Illinois / Mesoscale Discussions in 2009

Mesoscale Discussion 987

June 8, 200949 counties in Illinois; 6 counties in Indiana; Walworth County, Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2009, 11:54 AM CDT for 49 counties in Illinois; 6 counties in Indiana; Walworth County, Wisconsin. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: Jun 8, 2009, 11:54 AM CDT (16:54 UTC)
Expired: Jun 8, 2009, 1:30 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center

All 56 counties

Bond County, IL, Boone County, IL, Brown County, IL, Bureau County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Cook County, IL, DeKalb County, IL, DeWitt County, IL, DuPage County, IL, Ford County, IL, Fulton County, IL, Greene County, IL, Grundy County, IL, Iroquois County, IL, Jersey 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, Macoupin County, IL, Madison County, IL, Marshall County, IL, Mason County, IL, McHenry County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Ogle County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Putnam County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Stark County, IL, Tazewell County, IL, Will County, IL, Woodford County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Pulaski County, IN, Walworth County, WI

The radar

The Lincoln radar (KILX), 47 km from the middle of the area, began a volume at 16:54 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.

Severe Thunderstorm Watch 350Jun 8, 1:25 PM CDT

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
Jun 7, 11:09 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Brown, Hancock, Henderson, McDonough, Mercer and 1 more	6 hr
Jun 8, 3:25 AM CDT	Mesoscale Discussion	SPC	Adams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more	65 min
Jun 8, 8:49 AM CDT	Mesoscale Discussion	SPC	Bond, Clark, Clay, Clinton, Coles, Crawford and 26 more	86 min
Jun 8, 1:23 PM CDT	Severe Thunderstorm Watch	SPC	Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 10 more	6 hr
Jun 8, 3:20 PM CDT	Mesoscale Discussion	SPC	Bond, Clinton, Franklin, Jackson, Jefferson, Jersey and 9 more	85 min
Jun 8, 3:53 PM CDT	Mesoscale Discussion	SPC	Boone, Cook, DeKalb, DuPage, Grundy, Iroquois and 11 more	67 min
Jun 8, 4:33 PM CDT	Severe Thunderstorm Watch	SPC	Alexander, Bond, Champaign, Christian, Clark, Clay and 37 more	5 hr
Jun 8, 5:46 PM CDT	Mesoscale Discussion	SPC	Lake	59 min
Jun 8, 2:34 PM CDT	Mesoscale Discussion	SPC	Elkhart, Kosciusko, LaGrange, Marshall, Noble, Steuben	56 min

Nearby

Mesoscale Discussions in Illinois, 2009 Mesoscale Discussions in Indiana, 2009 Mesoscale Discussions in Wisconsin, 2009 Every mesoscale discussion in 2009

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.