Alert archive / Illinois / Mesoscale Discussions in 2009

Mesoscale Discussion 206

March 8, 200938 counties in Illinois; 26 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Mar 8, 2009, 9:26 AM CDT for 38 counties in Illinois; 26 counties in Missouri. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Mar 8, 2009, 9:26 AM CDT (14:26 UTC)
Expired: Mar 8, 2009, 10:30 AM CDT
In force: 64 min
Issued by: the Storm Prediction Center

All 64 counties

Bond County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Christian County, IL, Clinton County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Effingham County, IL, Fayette County, IL, Greene County, IL, Jackson County, IL, Jefferson County, IL, Jersey County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Mason County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Perry County, IL, Piatt County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Washington County, IL, Bollinger County, MO, Cape Girardeau County, MO, Carter County, MO, City of Saint Louis, MO, Crawford County, MO, Dent County, MO, Douglas County, MO, Franklin County, MO, Gasconade County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Madison County, MO, Perry County, MO, Phelps County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shannon County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Wayne County, MO

The radar

The St Louis radar (KLSX), 60 km from the middle of the area, began a volume at 14:29 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.

Tornado Watch 49Mar 8, 10:40 AM 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
Mar 7, 10:26 PM CST	Mesoscale Discussion	SPC	Adams, Brown, Cass, Fulton, Hancock, Logan and 7 more	2 hr
Mar 8, 6:32 AM CDT	Tornado Watch	SPC	Adams, Bond, Brown, Calhoun, Cass, Clinton and 15 more	7 hr
Mar 8, 10:39 AM CDT	Tornado Watch	SPC	Alexander, Champaign, Christian, Clark, Clay, Coles and 45 more	7 hr
Mar 8, 11:35 AM CDT	Mesoscale Discussion	SPC	Bond, Champaign, Christian, Clay, Clinton, Coles and 27 more	115 min
Mar 7, 6:31 PM CST	Mesoscale Discussion	SPC	Bates, Buchanan, Caldwell, Carroll, Cass, Chariton and 12 more	59 min
Mar 7, 7:33 PM CST	Severe Thunderstorm Watch	SPC	Bates, Buchanan, Caldwell, Carroll, Cass, Chariton and 16 more	7 hr
Mar 8, 12:43 AM CST	Mesoscale Discussion	SPC	Buchanan, Caldwell, Carroll, Cass, Chariton, Clay and 13 more	92 min
Mar 8, 5:56 AM CDT	Mesoscale Discussion	SPC	Audrain, Barton, Bates, Benton, Boone, Callaway and 25 more	64 min

Nearby

Mesoscale Discussions in Illinois, 2009 Mesoscale Discussions in Missouri, 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.