Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 2556

December 21, 200414 counties in Illinois; 21 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Dec 21, 2004, 6:35 PM CST for 14 counties in Illinois; 21 counties in Missouri. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Dec 21, 2004, 6:35 PM CST (00:35 UTC)
Expired: Dec 21, 2004, 10:30 PM CST
In force: 4 hr
Issued by: the Storm Prediction Center

All 35 counties

Alexander County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Perry County, IL, Pulaski County, IL, Randolph County, IL, Saline County, IL, Union County, IL, White County, IL, Williamson County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Douglas County, MO, Howell County, MO, Iron County, MO, Madison County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Taney County, MO, Texas County, MO, Wayne County, MO

The radar

The St Louis radar (KLSX), 150 km from the middle of the area, began a volume at 00:37 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 22, 1:04 AM CST	Mesoscale Discussion	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more	6 hr
Dec 22, 5:02 AM CST	Mesoscale Discussion	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more	6 hr
Dec 22, 12:12 PM CST	Mesoscale Discussion	SPC	Massac, Pope	4 hr

Nearby

Mesoscale Discussions in Missouri, 2004 Mesoscale Discussions in Illinois, 2004 Every mesoscale discussion in 2004

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.