Alert archive / Tennessee / Mesoscale Discussions in 2004

Mesoscale Discussion 1222

June 12, 20045 states

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2004, 3:14 PM CDT for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 12, 2004, 3:14 PM CDT (20:14 UTC)
Expired
Jun 12, 2004, 5:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 104 counties

Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, Sharp County, AR, St. Francis County, AR, White County, AR, Woodruff County, AR, Fulton County, KY, Dunklin County, MO, Pemiscot County, MO, Cherokee County, NC, Clay County, NC, Graham County, NC, Anderson County, TN, Bedford County, TN, Benton County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Clay County, TN, Coffee County, TN, Crockett County, TN, Cumberland County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Fentress County, TN, Franklin County, TN, Gibson County, TN, Giles County, TN, Grundy County, TN, Hamilton County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Knox County, TN, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Loudon County, TN, Macon County, TN, Madison County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, McMinn County, TN, McNairy County, TN, Meigs County, TN, Monroe County, TN, Montgomery County, TN, Moore County, TN, Morgan County, TN, Obion County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Polk County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Robertson County, TN, Rutherford County, TN, Scott County, TN, Sequatchie County, TN, Shelby County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Tipton County, TN, Trousdale County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, Weakley County, TN, White County, TN, Williamson County, TN, Wilson County, TN

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 8.2 hours before the alert went out and 149 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, Little Rock, AR at 12:00Z on 2004-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1685 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, Little Rock, AR at 12:00Z on 2004-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
1685 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
975 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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 12, 11:38 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 22 more2 hr
Jun 12, 1:35 PM CDTSevere Thunderstorm WatchSPCClay, Craighead, Crittenden, Cross, Fulton, Greene and 11 more5 hr
Jun 12, 3:10 PM CDTSevere Thunderstorm WatchSPCBaxter, Benton, Boone, Carroll, Madison, Marion and 5 more6 hr
Jun 12, 4:36 PM CDTMesoscale DiscussionSPCBenton, Carroll84 min
Jun 12, 10:48 AM CDTMesoscale DiscussionSPCAdair, Anderson, Bath, Boone, Bourbon, Boyle and 84 more2 hr
Jun 12, 11:10 AM CDTSevere Thunderstorm WatchSPCAdair, Allen, Anderson, Barren, Bath, Bell and 77 more5 hr
Jun 12, 1:54 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bell and 68 more2 hr
Jun 12, 3:30 PM CDTMesoscale DiscussionSPCAdair, Allen, Barren, Bath, Bell, Bourbon and 48 more90 min
Jun 12, 3:51 PM CDTMesoscale DiscussionSPCBallard, Carlisle, Livingston, McCracken84 min
Jun 12, 4:15 PM CDTSevere Thunderstorm WatchSPCBallard, Caldwell, Carlisle, Christian, Crittenden, Graves and 12 more5 hr
Jun 12, 6:08 PM CDTMesoscale DiscussionSPCBallard, Caldwell, Carlisle, Christian, Crittenden, Graves and 12 more37 min
Jun 11, 11:34 PM CDTMesoscale DiscussionSPCBuchanan, Caldwell, Carroll, Clay, Clinton, Daviess and 5 more116 min
Jun 12, 2:18 AM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Camden, Cass, Cedar and 18 more87 min
Jun 12, 10:30 AM CDTMesoscale DiscussionSPCAtchison, Barton, Bates, Benton, Camden, Cass and 29 more2 hr
Jun 12, 11:45 AM CDTTornado WatchSPCAndrew, Atchison, Buchanan, Gentry, Holt, Nodaway and 1 more7 hr
Jun 12, 12:43 PM CDTMesoscale DiscussionSPCAtchison92 min
Jun 12, 5:00 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Gentry, Holt, Nodaway and 1 more90 min
Jun 12, 6:15 PM CDTTornado WatchSPCAdair, Andrew, Atchison, Bates, Benton, Buchanan and 31 more5 hr
Jun 11, 7:25 PM CDTSevere Thunderstorm WatchSPCAlamance, Bertie, Camden, Chatham, Chowan, Currituck and 20 more3 hr
Jun 11, 8:56 PM CDTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Chatham, Chowan, Craven and 26 more94 min
Jun 12, 1:18 PM CDTMesoscale DiscussionSPCHenderson, Jackson, Macon, Polk, Transylvania117 min
Jun 12, 12:59 PM CDTMesoscale DiscussionSPCAnderson, Bedford, Benton, Bledsoe, Blount, Bradley and 71 more3 hr

Nearby

Mesoscale Discussions in Tennessee, 2004Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in North Carolina, 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.