Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 2133

August 27, 200412 counties in Illinois; 30 counties in Kansas; 76 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2004, 1:07 PM CDT for 12 counties in Illinois; 30 counties in Kansas; 76 counties in Missouri. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Aug 27, 2004, 1:07 PM CDT (18:07 UTC)
Expired
Aug 27, 2004, 3:00 PM CDT
In force
113 min
Issued by
the Storm Prediction Center
All 118 counties

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Pike County, IL, Saint Clair County, IL, Scott County, IL, Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Greenwood County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Pottawatomie County, KS, Shawnee County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, City of Saint Louis, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Daviess County, MO, DeKalb County, MO, Franklin County, MO, Gasconade County, MO, Gentry County, MO, Greene County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jasper County, MO, Jefferson County, MO, Johnson County, MO, Knox County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Pike County, MO, Platte County, MO, Polk County, MO, Pulaski County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Shelby County, MO, St. Clair County, MO, Sullivan County, MO, Vernon County, MO, Warren County, MO, Washington County, MO

The radar

The Pleasant Hill radar (KEAX), 101 km from the middle of the area, began a volume at 18:06 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 6.1 hours before the alert went out and 182 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2004-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1722 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2004-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1722 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
915 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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
Aug 26, 9:13 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Rock Island, Stephenson62 min
Aug 26, 9:45 PM CDTSevere Thunderstorm WatchSPCBoone, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more6 hr
Aug 26, 11:53 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Grundy, Kane and 8 more97 min
Aug 27, 1:25 AM CDTSevere Thunderstorm WatchSPCBoone, Bureau, Cook, DeKalb, DeWitt, DuPage and 25 more6 hr
Aug 27, 1:49 AM CDTMesoscale DiscussionSPCHenderson, Henry, Mercer, Ogle, Rock Island, Whiteside and 1 more56 min
Aug 27, 4:36 AM CDTMesoscale DiscussionSPCCook, DeWitt, Ford, Fulton, Grundy, Hancock and 11 more84 min
Aug 27, 6:33 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Iroquois, McLean, Mason and 4 more27 min
Aug 27, 9:24 AM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Macoupin, Madison, Morgan and 2 more96 min
Aug 27, 9:40 AM CDTSevere Thunderstorm WatchSPCBrown, Calhoun, Cass, Greene, Jersey, Macoupin and 7 more5 hr
Aug 27, 2:45 PM CDTSevere Thunderstorm WatchSPCCalhoun, Cass, Greene, Jersey, Morgan, Pike and 1 more6 hr
Aug 27, 3:49 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Greene, Jersey, Morgan, Pike and 1 more86 min
Aug 27, 4:10 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Fulton, Hancock, Henderson and 14 more2 hr
Aug 27, 2:45 PM CDTSevere Thunderstorm WatchSPCAtchison, Coffey, Doniphan, Douglas, Franklin, Jackson and 10 more6 hr
Aug 27, 4:54 PM CDTMesoscale DiscussionSPCButler, Cowley, Sumner96 min
Aug 27, 5:20 PM CDTSevere Thunderstorm WatchSPCButler, Chautauqua, Cowley, Elk, Sumner, Wilson6 hr
Aug 26, 7:45 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Daviess, Gentry, Harrison, Holt and 3 more90 min

Nearby

Mesoscale Discussions in Missouri, 2004Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Illinois, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.