Alert archive / Mississippi / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 278

May 6, 2003Ashley County, Chicot County, Arkansas; 9 parishes in Louisiana; 42 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at May 6, 2003, 7:15 PM CDT for Ashley County, Chicot County, Arkansas; 9 parishes in Louisiana; 42 counties in Mississippi. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 6, 2003, 7:15 PM CDT (00:15 UTC)
Expired
May 7, 2003, 12:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 53 counties

Ashley County, AR, Chicot County, AR, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Adams County, MS, Attala County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Franklin County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Warren County, MS, Washington County, MS, Wayne County, MS, Webster County, MS, Winston County, MS, Yazoo County, MS

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 6, 7:15 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Yazoo45 min
May 6, 7:24 PM CDTTornado WarningJANMadison46 min
May 6, 7:31 PM CDTSevere Thunderstorm WarningJANWarren44 min
May 6, 7:59 PM CDTSevere Thunderstorm WarningJANYazoo46 min
May 6, 8:02 PM CDTSevere Thunderstorm WarningJANHinds58 min
May 6, 8:07 PM CDTTornado WarningJANMadison58 min
May 6, 8:19 PM CDTSevere Thunderstorm WarningJANHolmes61 min
May 6, 8:42 PM CDTSevere Thunderstorm WarningJANRankin28 min
May 6, 8:44 PM CDTSevere Thunderstorm WarningJANCarroll, Leflore46 min
May 6, 8:59 PM CDTTornado WarningJANCarroll, Leflore46 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

Jackson, MS (KJAN), launched 00:00Z, 0.3 hours before the alert went out and 59 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, Jackson, MS at 00:00Z on 2003-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4325 joules per kilogram.LCLEL10008507005003002001001 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, Jackson, MS at 00:00Z on 2003-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
4325 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
856 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
1.8
Supercell composite
7.9

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
May 6, 7:53 PM CDTMesoscale DiscussionSPCBaxter, Cleburne, Conway, Faulkner, Fulton, Garland and 19 more2 hr
May 6, 11:08 PM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clark, Cleveland, Columbia and 33 more97 min
May 6, 11:30 PM CDTTornado WatchSPCArkansas, Ashley, Baxter, Boone, Bradley, Calhoun and 67 more6 hr
May 7, 2:27 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Boone, Bradley, Calhoun and 64 more3 hr
May 7, 4:55 AM CDTTornado WatchSPCArkansas, Ashley, Bradley, Chicot, Crittenden, Cross and 8 more6 hr
May 7, 7:06 AM CDTMesoscale DiscussionSPCAshley, Bradley, Chicot, Desha, Drew, Phillips and 1 more114 min
May 7, 10:50 AM CDTTornado WatchSPCAshley, Chicot, Drew5 hr
May 7, 1:54 PM CDTMesoscale DiscussionSPCChicot2 hr
May 6, 9:53 PM CDTMesoscale DiscussionSPCMadison97 min
May 7, 9:47 AM CDTMesoscale DiscussionSPCBienville, Caldwell, Catahoula, Concordia, East Carroll, Franklin and 14 more118 min
May 6, 11:50 PM CDTTornado WatchSPCAlcorn, Benton, DeSoto, Marshall, Prentiss, Tate and 4 more6 hr
May 7, 1:41 AM CDTMesoscale DiscussionSPCAlcorn, Benton, DeSoto, Marshall, Prentiss, Tate and 4 more3 hr
May 7, 7:35 AM CDTTornado WatchSPCKemper, Lauderdale, Lowndes, Monroe, Neshoba, Newton and 4 more5 hr
May 7, 1:42 PM CDTMesoscale DiscussionSPCClarke, Covington, Forrest, George, Greene, Harrison and 8 more2 hr
May 7, 3:00 PM CDTTornado WatchSPCLowndes6 hr
May 7, 6:29 PM CDTMesoscale DiscussionSPCClarke, Jasper, Lauderdale, Lowndes, Newton, Wayne91 min

Nearby

Severe Thunderstorm Watches in Mississippi, 2003Severe Thunderstorm Watches in Louisiana, 2003Severe Thunderstorm Watches in Arkansas, 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.