Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 2101

August 24, 200418 counties in Kansas; 28 counties in Missouri; 5 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Aug 24, 2004, 11:47 PM CDT for 18 counties in Kansas; 28 counties in Missouri; 5 counties in Nebraska. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued
Aug 24, 2004, 11:47 PM CDT (04:47 UTC)
Expired
Aug 25, 2004, 1:45 AM CDT
In force
118 min
Issued by
the Storm Prediction Center
All 51 counties

Atchison County, KS, Brown County, KS, Clay County, KS, Doniphan County, KS, Douglas County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Putnam County, MO, Ray County, MO, Saline County, MO, Sullivan County, MO, Worth County, MO, Gage County, NE, Johnson County, NE, Nemaha County, NE, Pawnee County, NE, Richardson County, NE

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.8 hours before the alert went out and 107 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, Topeka, KS at 00:00Z on 2004-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3663 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, Topeka, KS at 00:00Z on 2004-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.19395878Sfc1 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
3663 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
1.6
Supercell composite
7.5

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 24, 8:20 PM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Clay, Dickinson, Doniphan, Douglas and 14 more7 hr
Aug 25, 8:50 AM CDTSevere Thunderstorm WatchSPCBrown, Clay, Cloud, Doniphan, Marshall, Nemaha and 4 more5 hr
Aug 25, 9:24 AM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Coffey, Doniphan, Douglas and 10 more2 hr
Aug 25, 11:59 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 4 more91 min
Aug 25, 4:50 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Coffey and 21 more85 min
Aug 25, 5:15 PM CDTSevere Thunderstorm WatchSPCAnderson, Coffey, Douglas, Franklin, Jackson, Jefferson and 10 more5 hr
Aug 25, 2:14 AM CDTMesoscale DiscussionSPCAdair, Andrew, Buchanan, Caldwell, Chariton, Clinton and 14 more31 min
Aug 25, 12:35 PM CDTTornado WatchSPCAdair, Audrain, Boone, Caldwell, Callaway, Carroll and 33 more6 hr
Aug 25, 2:20 PM CDTTornado WatchSPCSaint Charles, Saint Louis, City of Saint Louis6 hr
Aug 25, 3:15 PM CDTSevere Thunderstorm WatchSPCCamden, Carter, Christian, Cole, Crawford, Dallas and 25 more6 hr
Aug 25, 5:14 PM CDTMesoscale DiscussionSPCSaint Charles, Saint Louis, City of Saint Louis91 min
Aug 24, 10:41 PM CDTMesoscale DiscussionSPCBoone, Buffalo, Custer, Dawson, Frontier, Garfield and 11 more2 hr
Aug 25, 1:44 AM CDTMesoscale DiscussionSPCAdams, Antelope, Boone, Buffalo, Butler, Clay and 23 more91 min

Nearby

Mesoscale Discussions in Missouri, 2004Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Nebraska, 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.