Alert archive / North Carolina / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 216

May 2, 200317 counties in North Carolina; 4 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at May 2, 2003, 7:45 PM EDT for 17 counties in North Carolina; 4 counties in South Carolina. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
May 2, 2003, 7:45 PM EDT (23:45 UTC)
Expired
May 2, 2003, 11:00 PM EDT
In force
3 hr
Issued by
the Storm Prediction Center
All 21 counties

Beaufort County, NC, Bladen County, NC, Brunswick County, NC, Columbus County, NC, Craven County, NC, Duplin County, NC, Greene County, NC, Jones County, NC, Lenoir County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Pitt County, NC, Sampson County, NC, Wayne County, NC, Wilson County, NC, Georgetown County, SC, Horry County, SC, Marion County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 41 km from the middle of the area, began a volume at 23:46 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

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

IssuedProductOfficeCountiesLasted
May 2, 8:03 PM EDTSevere Thunderstorm WarningILMGeorgetown42 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

Charleston AFB, SC (KCHS), launched 12:00Z, 11.8 hours before the alert went out and 220 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, Charleston AFB, SC at 12:00Z on 2003-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 41 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, Charleston AFB, SC at 12:00Z on 2003-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
41 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 2:23 PM EDTMesoscale DiscussionSPCAlexander, Avery, Buncombe, Burke, Caldwell, Catawba and 17 more2 hr
May 2, 2:35 PM EDTSevere Thunderstorm WatchSPCAlexander, Alleghany, Ashe, Avery, Buncombe, Burke and 21 more5 hr
May 2, 2:55 PM EDTSevere Thunderstorm WatchSPCCherokee, Clay, Graham, Swain5 hr
May 2, 4:22 PM EDTMesoscale DiscussionSPCAlamance, Anson, Bladen, Cabarrus, Chatham, Cumberland and 23 more113 min
May 2, 4:40 PM EDTSevere Thunderstorm WatchSPCAlamance, Anson, Cabarrus, Chatham, Cumberland, Davidson and 22 more5 hr
May 2, 6:36 PM EDTMesoscale DiscussionSPCCherokee, Clay, Graham84 min
May 2, 7:17 PM EDTMesoscale DiscussionSPCAlamance, Anson, Cabarrus, Chatham, Cumberland, Davidson and 21 more88 min
May 2, 5:43 PM EDTMesoscale DiscussionSPCMcCormick92 min

Nearby

Severe Thunderstorm Watches in North Carolina, 2003Severe Thunderstorm Watches in South Carolina, 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.