Alert archive / Mississippi / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 741

July 13, 20034 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 13, 2003, 5:55 PM CDT for 4 states. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jul 13, 2003, 5:55 PM CDT (22:55 UTC)
Expired
Jul 13, 2003, 10:00 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
All 60 counties

Colbert County, AL, Franklin County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Chicot County, AR, Alcorn County, MS, Attala County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Coahoma 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, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Bedford County, TN, Chester County, TN, Fayette County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Lawrence County, TN, Lewis County, TN, Marshall County, TN, McNairy County, TN, Shelby County, TN, Tipton County, TN, Wayne County, TN

Warnings issued inside it

14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 13, 5:55 PM CDTSevere Thunderstorm WarningMEGYalobusha35 min
Jul 13, 5:57 PM CDTSevere Thunderstorm WarningOHXMarshall, Rutherford, Williamson33 min
Jul 13, 6:02 PM CDTSevere Thunderstorm WarningOHXBedford, Marshall, Rutherford, Williamson28 min
Jul 13, 6:03 PM CDTSevere Thunderstorm WarningMEGDeSoto42 min
Jul 13, 6:07 PM CDTSevere Thunderstorm WarningJANGrenada58 min
Jul 13, 6:15 PM CDTSevere Thunderstorm WarningMEGTallahatchie30 min
Jul 13, 6:26 PM CDTSevere Thunderstorm WarningMEGTunica49 min
Jul 13, 6:34 PM CDTSevere Thunderstorm WarningJANAttala61 min
Jul 13, 6:53 PM CDTSevere Thunderstorm WarningJANCarroll, Leflore57 min
Jul 13, 7:13 PM CDTSevere Thunderstorm WarningMEGTunica47 min
Jul 13, 7:36 PM CDTSevere Thunderstorm WarningMEGPanola, Quitman39 min
Jul 13, 7:47 PM CDTSevere Thunderstorm WarningMEGTallahatchie, Yalobusha43 min
Jul 13, 8:10 PM CDTSevere Thunderstorm WarningJANHolmes45 min
Jul 13, 9:26 PM CDTSevere Thunderstorm WarningJANLeflore44 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 101 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 2003-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2438 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 2003-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939Sfc1 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
2438 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1048 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 11:02 AM CDTMesoscale DiscussionSPCBibb, Choctaw, Clarke, Dallas, Fayette, Greene and 12 more118 min
Jul 13, 11:55 AM CDTSevere Thunderstorm WatchSPCColbert, Lauderdale6 hr
Jul 13, 3:05 PM CDTSevere Thunderstorm WatchSPCBlount, Calhoun, Cherokee, Cullman, DeKalb, Etowah and 12 more5 hr
Jul 13, 3:53 PM CDTMesoscale DiscussionSPCColbert, Lauderdale67 min
Jul 13, 5:26 PM CDTMesoscale DiscussionSPCJackson94 min
Jul 13, 11:30 AM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Cleveland, Columbia, Crittenden and 11 more2 hr
Jul 13, 1:30 PM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 6 more60 min
Jul 13, 4:44 PM CDTMesoscale DiscussionSPCBaxter, Boone, Clay, Cleburne, Craighead, Fulton and 12 more61 min
Jul 13, 5:10 PM CDTSevere Thunderstorm WatchSPCBaxter, Boone, Carroll, Cleburne, Craighead, Crittenden and 18 more5 hr
Jul 13, 6:54 PM CDTMesoscale DiscussionSPCCrittenden, Cross, Jackson, Lee, Monroe, Poinsett and 4 more96 min
Jul 13, 1:55 PM CDTSevere Thunderstorm WatchSPCAdams5 hr
Jul 13, 4:33 PM CDTMesoscale DiscussionSPCAdams87 min
Jul 13, 12:16 PM CDTMesoscale DiscussionSPCAnderson, Bledsoe, Blount, Bradley, Campbell, Carter and 39 more119 min

Nearby

Severe Thunderstorm Watches in Mississippi, 2003Severe Thunderstorm Watches in Tennessee, 2003Severe Thunderstorm Watches in Alabama, 2003Every severe thunderstorm watch 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.