Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 1212

June 12, 200434 counties in Kansas; 35 counties in Missouri; 11 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2004, 10:30 AM CDT for 34 counties in Kansas; 35 counties in Missouri; 11 counties in Nebraska. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 12, 2004, 10:30 AM CDT (15:30 UTC)
Expired
Jun 12, 2004, 12:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 80 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Brown County, KS, Chase County, KS, Cherokee County, KS, Clay County, KS, Coffey County, KS, Crawford County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marshall County, KS, Miami County, KS, Morris County, KS, Nemaha County, KS, Neosho County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Woodson County, KS, Wyandotte County, KS, Atchison County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Clay County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Holt County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, Miller County, MO, Morgan County, MO, Pettis County, MO, Phelps County, MO, Platte County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Cass County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Thayer County, NE

The radar

The Pleasant Hill radar (KEAX), 19 km from the middle of the area, began a volume at 15:31 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

Topeka, KS (KTOP), launched 12:00Z, 3.5 hours before the alert went out and 102 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 12:00Z on 2004-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2061 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 12:00Z on 2004-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 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
2061 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.6

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 11, 11:34 PM CDTMesoscale DiscussionSPCLeavenworth, Wyandotte116 min
Jun 12, 2:18 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Elk, Labette and 6 more87 min
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, 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; radar from the NEXRAD Level II archive.