Alert archive / South Carolina / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 304

May 13, 20029 counties in Georgia; 8 counties in North Carolina; 26 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at May 13, 2002, 7:15 PM EDT for 9 counties in Georgia; 8 counties in North Carolina; 26 counties in South Carolina. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 13, 2002, 7:15 PM EDT (23:15 UTC)
Expired: May 14, 2002, 12:00 AM EDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 43 counties

Bulloch County, GA, Candler County, GA, Effingham County, GA, Evans County, GA, Jenkins County, GA, Montgomery County, GA, Screven County, GA, Tattnall County, GA, Toombs County, GA, Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Onslow County, NC, Pender County, NC, Robeson County, NC, Scotland County, NC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Kershaw County, SC, Lee County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Charleston,SC radar (KCLX), 82 km from the middle of the area, began a volume at 23:18 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

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

Issued	Product	Office	Counties	Lasted
May 13, 7:26 PM EDT	Severe Thunderstorm Warning	CAE	Lee	34 min
May 13, 7:37 PM EDT	Severe Thunderstorm Warning	ILM	Darlington, Florence	53 min
May 13, 7:41 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Moore, Scotland	34 min
May 13, 8:22 PM EDT	Severe Thunderstorm Warning	CHS	Jenkins	23 min
May 13, 8:22 PM EDT	Severe Thunderstorm Warning	ILM	Marion	53 min
May 13, 8:30 PM EDT	Severe Thunderstorm Warning	ILM	Florence	60 min
May 13, 8:54 PM EDT	Severe Thunderstorm Warning	ILM	Bladen, Robeson	51 min
May 13, 8:54 PM EDT	Severe Thunderstorm Warning	ILM	Horry	66 min
May 13, 9:06 PM EDT	Severe Thunderstorm Warning	ILM	Columbus	54 min
May 13, 10:22 PM EDT	Severe Thunderstorm Warning	MHX	Onslow	23 min
May 13, 10:53 PM EDT	Severe Thunderstorm Warning	CHS	Charleston	37 min

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.3 hours before the alert went out and 50 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1967 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 474 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 1:00 PM EDT	Severe Thunderstorm Watch	SPC	Banks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 48 more	5 hr
May 13, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	Baldwin, Bibb, Bleckley, Burke, Butts, Candler and 45 more	5 hr
May 13, 10:00 AM EDT	Severe Thunderstorm Watch	SPC	Alexander, Alleghany, Ashe, Avery, Buncombe, Burke and 27 more	5 hr
May 13, 3:00 PM EDT	Severe Thunderstorm Watch	SPC	Alamance, Alexander, Alleghany, Ashe, Avery, Buncombe and 39 more	5 hr
May 13, 6:30 PM EDT	Severe Thunderstorm Watch	SPC	Alamance, Anson, Beaufort, Bertie, Camden, Caswell and 39 more	6 hr

Nearby

Severe Thunderstorm Watches in South Carolina, 2002 Severe Thunderstorm Watches in Georgia, 2002 Severe Thunderstorm Watches in North Carolina, 2002 Every severe thunderstorm watch in 2002

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.