Alert archive / Tennessee / Mesoscale Discussions in 2003

Mesoscale Discussion 763

May 5, 20034 states

The Storm Prediction Center issued this mesoscale discussion at May 5, 2003, 11:06 AM CDT for 4 states. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
May 5, 2003, 11:06 AM CDT (16:06 UTC)
Expired
May 5, 2003, 1:00 PM CDT
In force
114 min
Issued by
the Storm Prediction Center
All 105 counties

Bibb County, AL, Colbert County, AL, Cullman County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Morgan County, AL, Pickens County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Fulton County, KY, Alcorn County, MS, Attala County, MS, Benton County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, DeSoto County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Bedford County, TN, Benton County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Coffee County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Franklin 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, Jackson County, TN, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Moore County, TN, Obion County, TN, Perry County, TN, Rutherford County, TN, Shelby County, TN, Smith County, TN, Stewart County, TN, Tipton County, TN, Trousdale County, TN, Warren County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN, Wilson 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, 4.1 hours before the alert went out and 134 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 2003-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2211 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 2003-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897117Sfc1 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
2211 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.3

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 5, 4:18 AM CDTMesoscale DiscussionSPCColbert, Lauderdale57 min
May 5, 4:55 AM CDTTornado WatchSPCColbert, Franklin, Lauderdale, Lawrence, Limestone, Madison and 1 more6 hr
May 5, 6:07 AM CDTMesoscale DiscussionSPCDeKalb, Jackson, Marshall83 min
May 5, 6:15 AM CDTTornado WatchSPCDeKalb, Jackson, Marshall3 hr
May 5, 7:11 AM CDTMesoscale DiscussionSPCColbert, Franklin, Jackson, Lauderdale, Lawrence, Limestone and 2 more2 hr
May 5, 8:50 AM CDTTornado WatchSPCBibb, Blount, Calhoun, Chambers, Cherokee, Chilton and 13 more6 hr
May 5, 9:05 AM CDTMesoscale DiscussionSPCColbert, Cullman, Fayette, Franklin, Greene, Hale and 13 more115 min
May 5, 9:35 AM CDTTornado WatchSPCColbert, Cullman, Fayette, Franklin, Greene, Lamar and 10 more5 hr
May 5, 10:38 AM CDTMesoscale DiscussionSPCBibb, Blount, Colbert, Cullman, Fayette, Franklin and 15 more3 hr
May 5, 12:52 PM CDTMesoscale DiscussionSPCBibb, Calhoun, Chambers, Cherokee, Chilton, Clay and 11 more113 min
May 5, 2:13 PM CDTMesoscale DiscussionSPCBibb, Blount, Calhoun, Chambers, Cherokee, Chilton and 32 more62 min
May 5, 2:35 PM CDTTornado WatchSPCBibb, Blount, Colbert, Cullman, Fayette, Franklin and 15 more7 hr
May 5, 5:40 PM CDTMesoscale DiscussionSPCBlount, Calhoun, Chambers, Cherokee, Clay, Cleburne and 26 more2 hr
May 4, 7:34 PM CDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Fulton and 7 more116 min
May 4, 9:26 PM CDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 15 more2 hr
May 4, 10:40 PM CDTTornado WatchSPCCrittenden, Daviess, Henderson, Hopkins, McLean, Ohio and 2 more5 hr
May 4, 11:37 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Boyle, Breckinridge and 38 more23 min
May 4, 11:45 PM CDTTornado WatchSPCAdair, Allen, Anderson, Barren, Bourbon, Boyle and 44 more5 hr
May 5, 1:20 AM CDTTornado WatchSPCBallard, Caldwell, Calloway, Carlisle, Christian, Fulton and 7 more6 hr
May 5, 1:30 AM CDTMesoscale DiscussionSPCCrittenden, Daviess, Henderson, Hopkins, McLean, Ohio and 2 more90 min
May 5, 2:31 AM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bourbon and 55 more89 min
May 5, 3:41 AM CDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 13 more34 min
May 5, 3:50 AM CDTTornado WatchSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more6 hr
May 5, 6:32 AM CDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more88 min
May 5, 7:35 AM CDTTornado WatchSPCAdair, Allen, Anderson, Barren, Bath, Bell and 69 more5 hr
May 5, 9:19 AM CDTMesoscale DiscussionSPCBallard, Caldwell, Carlisle, Crittenden, Graves, Henderson and 10 more56 min
May 5, 10:12 AM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bell, Boyle and 58 more93 min
May 5, 11:59 AM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bell, Boyle and 65 more61 min
May 5, 12:20 PM CDTTornado WatchSPCAdair, Allen, Anderson, Barren, Bath, Bourbon and 73 more7 hr
May 5, 2:47 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bourbon and 68 more118 min
May 5, 4:42 PM CDTMesoscale DiscussionSPCBoone, Boyd, Bracken, Campbell, Carter, Fleming and 12 more3 hr
May 5, 5:15 PM CDTTornado WatchSPCBracken, Campbell, Grant, Greenup, Kenton, Lewis and 4 more5 hr
May 5, 6:33 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bourbon and 69 more57 min
May 5, 6:47 PM CDTMesoscale DiscussionSPCBath, Bourbon, Boyd, Bracken, Campbell, Carter and 15 more88 min
May 5, 9:56 AM CDTMesoscale DiscussionSPCBolivar2 hr
May 5, 3:25 PM CDTTornado WatchSPCBolivar, Coahoma, Tunica7 hr
May 5, 3:15 AM CDTTornado WatchSPCAnderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 25 more6 hr
May 5, 5:18 PM CDTMesoscale DiscussionSPCDyer, Lake, Lauderdale117 min

Nearby

Mesoscale Discussions in Tennessee, 2003Mesoscale Discussions in Mississippi, 2003Mesoscale Discussions in Alabama, 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.