Alert archive / Illinois / Mesoscale Discussions in 2004

Mesoscale Discussion 411

April 21, 20044 states

The Storm Prediction Center issued this mesoscale discussion at Apr 21, 2004, 2:58 PM CDT for 4 states. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued
Apr 21, 2004, 2:58 PM CDT (19:58 UTC)
Expired
Apr 21, 2004, 4:30 PM CDT
In force
92 min
Issued by
the Storm Prediction Center
All 32 counties

Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Richland County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Gibson County, IN, Posey County, IN, Ballard County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Perry County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO

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.

IssuedProductOfficeCountiesLasted
Apr 20, 8:55 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more65 min
Apr 20, 9:38 PM CDTMesoscale DiscussionSPCCalhoun37 min
Apr 20, 11:10 PM CDTMesoscale DiscussionSPCBrown, Calhoun, Cass, Christian, Fulton, Greene and 15 more2 hr
Apr 21, 1:16 PM CDTMesoscale DiscussionSPCAdams, Allen, Blackford, DeKalb, Delaware, Grant and 13 more2 hr
Apr 20, 7:20 PM CDTMesoscale DiscussionSPCAdair, Audrain, Bates, Benton, Boone, Caldwell and 38 more115 min
Apr 20, 7:22 PM CDTMesoscale DiscussionSPCBarry, Barton, Cedar, Dade, Jasper, Lawrence and 4 more23 min
Apr 20, 7:50 PM CDTTornado WatchSPCBarry, McDonald, Stone, Taney5 hr
Apr 20, 8:06 PM CDTMesoscale DiscussionSPCAtchison84 min
Apr 20, 8:57 PM CDTMesoscale DiscussionSPCBarry, McDonald, Stone, Taney2 hr
Apr 20, 10:57 PM CDTMesoscale DiscussionSPCBarry, McDonald, Stone, Taney93 min

Nearby

Mesoscale Discussions in Illinois, 2004Mesoscale Discussions in Missouri, 2004Mesoscale Discussions in Indiana, 2004Every 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.