Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 1208

June 11, 2004Leavenworth County, Wyandotte County, Kansas; 11 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2004, 11:34 PM CDT for Leavenworth County, Wyandotte County, Kansas; 11 counties in Missouri. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Jun 11, 2004, 11:34 PM CDT (04:34 UTC)
Expired
Jun 12, 2004, 1:30 AM CDT
In force
116 min
Issued by
the Storm Prediction Center

Counties Leavenworth County, KS, Wyandotte County, KS, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Linn County, MO, Livingston County, MO, Platte County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 80 km from the middle of the area, began a volume at 04:34 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 nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.6 hours before the alert went out and 131 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 2004-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5143 joules per kilogram.LCLEL10008507005003002001001 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 2004-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
5143 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.5

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
Jun 11, 7:58 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Chase, Coffey, Doniphan and 16 more2 hr
Jun 12, 2:18 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Elk, Labette and 6 more87 min
Jun 12, 10:30 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Chase and 28 more2 hr
Jun 12, 11:45 AM CDTTornado WatchSPCAtchison, Barton, Brown, Chase, Clay, Cloud and 28 more7 hr
Jun 12, 1:12 PM CDTMesoscale DiscussionSPCButler, Chase, Chautauqua, Coffey, Cowley, Elk and 13 more2 hr
Jun 12, 1:53 PM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Geary, Jackson, Jewell and 16 more2 hr
Jun 12, 2:40 PM CDTTornado WatchSPCBarber, Butler, Chautauqua, Cowley, Elk, Greenwood and 9 more8 hr
Jun 12, 3:10 PM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Cherokee, Crawford, Labette, Neosho6 hr
Jun 12, 4:36 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Crawford, Franklin and 6 more84 min
Jun 12, 5:00 PM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Chase, Clay, Cloud and 29 more90 min
Jun 12, 5:37 PM CDTMesoscale DiscussionSPCBarber, Butler, Chautauqua, Coffey, Comanche, Cowley and 10 more83 min
Jun 12, 6:15 PM CDTTornado WatchSPCAnderson, Atchison, Barton, Brown, Chase, Clay and 36 more5 hr
Jun 12, 11:38 AM CDTMesoscale DiscussionSPCBarry, Butler, Carter, Dunklin, Howell, McDonald and 9 more2 hr
Jun 12, 12:43 PM CDTMesoscale DiscussionSPCAtchison92 min
Jun 12, 1:35 PM CDTSevere Thunderstorm WatchSPCDunklin, New Madrid, Pemiscot5 hr
Jun 12, 3:14 PM CDTMesoscale DiscussionSPCDunklin, Pemiscot2 hr
Jun 12, 3:51 PM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Mississippi, Perry, Sainte Genevieve, Scott84 min
Jun 12, 4:15 PM CDTSevere Thunderstorm WatchSPCCape Girardeau, Mississippi, Scott5 hr
Jun 12, 6:08 PM CDTMesoscale DiscussionSPCCape Girardeau, Mississippi, Scott37 min

Nearby

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