Alert archive / South Carolina / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 225

May 3, 20034 counties in Georgia; 13 counties in North Carolina; 34 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at May 3, 2003, 6:40 PM EDT for 4 counties in Georgia; 13 counties in North Carolina; 34 counties in South Carolina. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 3, 2003, 6:40 PM EDT (22:40 UTC)
Expired
May 3, 2003, 11:00 PM EDT
In force
4 hr
Issued by
the Storm Prediction Center
All 51 counties

Burke County, GA, Columbia County, GA, Lincoln County, GA, Richmond County, GA, Anson County, NC, Cabarrus County, NC, Gaston County, NC, Hoke County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Abbeville County, SC, Aiken County, SC, Anderson County, SC, Barnwell County, SC, Calhoun County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Greenville County, SC, Greenwood County, SC, Horry County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, Williamsburg County, SC, York County, SC

The radar

The Columbia radar (KCAE), 57 km from the middle of the area, began a volume at 22:40 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 3, 6:40 PM EDTTornado WarningRAHScotland35 min
May 3, 6:52 PM EDTSevere Thunderstorm WarningRAHStanly23 min
May 3, 7:00 PM EDTTornado WarningRAHMontgomery45 min
May 3, 7:03 PM EDTSevere Thunderstorm WarningGSPCabarrus57 min
May 3, 7:10 PM EDTSevere Thunderstorm WarningILMRobeson65 min
May 3, 7:15 PM EDTSevere Thunderstorm WarningRAHScotland30 min
May 3, 7:34 PM EDTSevere Thunderstorm WarningRAHStanly41 min
May 3, 7:39 PM EDTSevere Thunderstorm WarningRAHRichmond51 min
May 3, 7:56 PM EDTSevere Thunderstorm WarningRAHAnson49 min
May 3, 8:08 PM EDTSevere Thunderstorm WarningILMRobeson37 min
May 3, 8:10 PM EDTTornado WarningRAHRichmond35 min
May 3, 8:12 PM EDTSevere Thunderstorm WarningGSPMecklenburg63 min
May 3, 8:20 PM EDTTornado WarningILMRobeson25 min
May 3, 8:33 PM EDTSevere Thunderstorm WarningRAHScotland57 min
May 3, 8:49 PM EDTSevere Thunderstorm WarningRAHRichmond26 min
May 3, 8:56 PM EDTSevere Thunderstorm WarningILMRobeson49 min
May 3, 9:08 PM EDTSevere Thunderstorm WarningILMMarlboro82 min
May 3, 9:14 PM EDTSevere Thunderstorm WarningRAHRichmond31 min
May 3, 9:28 PM EDTSevere Thunderstorm WarningRAHHoke, Scotland47 min
May 3, 9:46 PM EDTSevere Thunderstorm WarningILMRobeson74 min
May 3, 10:00 PM EDTSevere Thunderstorm WarningILMDillon45 min
May 3, 10:25 PM EDTSevere Thunderstorm WarningGSPYork50 min
May 3, 10:29 PM EDTSevere Thunderstorm WarningGSPChester46 min
May 3, 10:41 PM EDTSevere Thunderstorm WarningILMDillon59 min
May 3, 10:44 PM EDTSevere Thunderstorm WarningCAELancaster46 min
May 3, 10:49 PM EDTTornado WarningGSPChester41 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.7 hours before the alert went out and 216 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, Greensboro/Hi Pt, NC at 12:00Z on 2003-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Greensboro/Hi Pt, NC at 12:00Z on 2003-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
3 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 9:18 PM EDTMesoscale DiscussionSPCBaldwin, Barrow, Bartow, Bibb, Bleckley, Butts and 59 more87 min
May 2, 11:10 PM EDTSevere Thunderstorm WatchSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 18 more3 hr
May 3, 9:45 AM EDTMesoscale DiscussionSPCDecatur, Seminole2 hr
May 3, 2:57 PM EDTMesoscale DiscussionSPCFranklin, Habersham, Hart, Rabun, Stephens, Towns and 2 more3 hr
May 3, 3:20 PM EDTSevere Thunderstorm WatchSPCAlexander, Alleghany, Anson, Ashe, Avery, Buncombe and 31 more5 hr
May 3, 6:15 PM EDTMesoscale DiscussionSPCAlamance, Alexander, Anson, Burke, Cabarrus, Caldwell and 34 more2 hr

Nearby

Severe Thunderstorm Watches in South Carolina, 2003Severe Thunderstorm Watches in North Carolina, 2003Severe Thunderstorm Watches in Georgia, 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; radar from the NEXRAD Level II archive.