Alert archive / Tennessee / Mesoscale Discussions in 2003

Mesoscale Discussion 1022

May 16, 20036 states

The Storm Prediction Center issued this mesoscale discussion at May 16, 2003, 9:39 AM CDT for 6 states. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
May 16, 2003, 9:39 AM CDT (14:39 UTC)
Expired
May 16, 2003, 11:15 AM CDT
In force
96 min
Issued by
the Storm Prediction Center
All 67 counties

Colbert County, AL, Lauderdale County, AL, Clay County, AR, Crittenden County, AR, Mississippi County, AR, Ballard County, KY, Calloway County, KY, Carlisle County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Marshall County, KY, Trigg County, KY, Butler County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Scott County, MO, Stoddard County, MO, Alcorn County, MS, Benton County, MS, DeSoto County, MS, Marshall County, MS, Prentiss County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Bedford County, TN, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Giles 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, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 2.7 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 2003-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1736 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 2003-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
1736 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.7

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
May 16, 1:14 PM CDTMesoscale DiscussionSPCBlount, Calhoun, Cherokee, Clay, Cleburne, Colbert and 22 more2 hr
May 16, 1:30 PM CDTSevere Thunderstorm WatchSPCBibb, Blount, Calhoun, Cherokee, Clay, Cleburne and 24 more6 hr
May 16, 3:39 PM CDTMesoscale DiscussionSPCBibb, Blount, Calhoun, Cherokee, Clay, Cleburne and 22 more96 min
May 16, 6:18 PM CDTMesoscale DiscussionSPCChambers, Clay, Cleburne, Coosa, Randolph, Shelby and 2 more57 min
May 16, 4:04 AM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Clark, Crawford, Franklin and 17 more56 min
May 16, 4:25 AM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Franklin, Howard, Johnson and 10 more5 hr
May 16, 5:47 AM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Howard, Johnson and 10 more58 min
May 16, 6:35 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clark, Cleburne and 36 more25 min
May 16, 6:50 AM CDTSevere Thunderstorm WatchSPCArkansas, Baxter, Boone, Cleburne, Cleveland, Conway and 27 more4 hr
May 16, 7:42 AM CDTMesoscale DiscussionSPCArkansas, Baxter, Boone, Cleburne, Cleveland, Conway and 26 more63 min
May 16, 9:16 AM CDTMesoscale DiscussionSPCHoward, Little River, Polk, Sevier119 min
May 16, 12:09 PM CDTMesoscale DiscussionSPCBradley, Calhoun, Clark, Cleveland, Columbia, Conway and 28 more3 hr
May 16, 12:45 PM CDTTornado WatchSPCBradley, Calhoun, Clark, Cleburne, Cleveland, Columbia and 33 more5 hr
May 16, 2:12 PM CDTMesoscale DiscussionSPCArkansas, Baxter, Boone, Clark, Clay, Cleburne and 44 more93 min
May 16, 2:50 PM CDTTornado WatchSPCArkansas, Ashley, Chicot, Clay, Craighead, Crittenden and 16 more7 hr
May 16, 3:18 PM CDTMesoscale DiscussionSPCClark, Garland, Hempstead, Hot Spring, Howard, Little River and 11 more117 min
May 16, 3:34 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Fulton, Izard and 6 more116 min
May 16, 3:55 PM CDTTornado WatchSPCBaxter, Benton, Boone, Carroll, Fulton, Independence and 8 more6 hr
May 16, 5:06 PM CDTMesoscale DiscussionSPCBradley, Calhoun, Clark, Cleburne, Cleveland, Columbia and 33 more54 min
May 16, 5:45 PM CDTTornado WatchSPCArkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 40 more6 hr
May 16, 5:59 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Clay, Craighead, Crittenden and 13 more91 min
May 16, 6:39 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 20 more2 hr
May 15, 7:03 PM CDTMesoscale DiscussionSPCBledsoe, Blount, Cumberland, Loudon, McMinn, Meigs and 4 more87 min

Nearby

Mesoscale Discussions in Tennessee, 2003Mesoscale Discussions in Mississippi, 2003Mesoscale Discussions in Kentucky, 2003Every mesoscale discussion in 2003

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.