Alert archive / North Carolina / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 65

March 31, 200221 counties in North Carolina; 9 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Mar 31, 2002, 1:00 PM EST for 21 counties in North Carolina; 9 counties in South Carolina. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 31, 2002, 1:00 PM EST (18:00 UTC)
Expired
Mar 31, 2002, 7:00 PM EST
In force
6 hr
Issued by
the Storm Prediction Center
All 30 counties

Beaufort County, NC, Bladen County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Duplin County, NC, Greene County, NC, Hoke County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Pitt County, NC, Richmond County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Washington County, NC, Wayne County, NC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Florence County, SC, Kershaw County, SC, Lee County, SC, Marion County, SC, Marlboro County, SC, Sumter County, SC

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 31, 1:02 PM ESTSevere Thunderstorm WarningILMRobeson58 min
Mar 31, 1:02 PM ESTSevere Thunderstorm WarningRAHCumberland43 min
Mar 31, 1:58 PM ESTSevere Thunderstorm WarningRAHSampson17 min
Mar 31, 2:00 PM ESTSevere Thunderstorm WarningRAHCumberland30 min
Mar 31, 2:22 PM ESTSevere Thunderstorm WarningILMRobeson38 min
Mar 31, 2:24 PM ESTSevere Thunderstorm WarningILMDarlington, Florence66 min
Mar 31, 2:26 PM ESTSevere Thunderstorm WarningRAHSampson34 min
Mar 31, 2:30 PM ESTSevere Thunderstorm WarningRAHJohnston, Wayne30 min
Mar 31, 2:34 PM ESTTornado WarningRAHSampson26 min
Mar 31, 2:34 PM ESTSevere Thunderstorm WarningCAESumter41 min
Mar 31, 2:43 PM ESTSevere Thunderstorm WarningILMMarlboro62 min
Mar 31, 2:48 PM ESTSevere Thunderstorm WarningCAELee57 min
Mar 31, 2:50 PM ESTSevere Thunderstorm WarningRAHCumberland25 min
Mar 31, 2:55 PM ESTSevere Thunderstorm WarningILMDillon65 min
Mar 31, 3:00 PM ESTSevere Thunderstorm WarningILMRobeson45 min
Mar 31, 3:04 PM ESTSevere Thunderstorm WarningRAHSampson26 min
Mar 31, 3:05 PM ESTSevere Thunderstorm WarningRAHWayne25 min
Mar 31, 3:05 PM ESTSevere Thunderstorm WarningILMFlorence55 min
Mar 31, 3:09 PM ESTSevere Thunderstorm WarningCAEClarendon, Sumter36 min
Mar 31, 3:29 PM ESTSevere Thunderstorm WarningILMDarlington61 min
Mar 31, 3:37 PM ESTSevere Thunderstorm WarningILMRobeson53 min
Mar 31, 3:58 PM ESTSevere Thunderstorm WarningILMDillon62 min
Mar 31, 4:00 PM ESTSevere Thunderstorm WarningILMFlorence60 min
Mar 31, 4:08 PM ESTSevere Thunderstorm WarningRAHCumberland22 min
Mar 31, 4:16 PM ESTSevere Thunderstorm WarningILMBladen59 min
Mar 31, 4:25 PM ESTSevere Thunderstorm WarningILMMarion65 min
Mar 31, 4:31 PM ESTSevere Thunderstorm WarningILMRobeson59 min
Mar 31, 5:29 PM ESTSevere Thunderstorm WarningILMRobeson61 min
Mar 31, 5:58 PM ESTSevere Thunderstorm WarningCAELee, Sumter47 min
Mar 31, 6:29 PM ESTSevere Thunderstorm WarningILMFlorence61 min

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.0 hours before the alert went out and 163 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 2002-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2002-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
472 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WWUS20 KWNS 311746
SEL5  
SPC WW 311742
NCZ000-SCZ000-010000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 65
STORM PREDICTION CENTER NORMAN OK
1242 PM EST SUN MAR 31 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTHEAST NORTH CAROLINA                     
NORTHEAST SOUTH CAROLINA                     

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 100 PM UNTIL 700
PM EST.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 40 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 50 MILES WEST OF FLORENCE SOUTH
CAROLINA TO 40 MILES NORTHEAST OF NEW BERN NORTH CAROLINA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...  CONTINUE...WW 64...

DISCUSSION...THUNDERSTORMS WILL INCREASE IN COVERAGE/INTENSITY
THROUGH MID AFTERNOON ALONG AN ENE-WSW ORIENTED SURFACE FRONT. 
STRONG INSTABILITY AND MODEST DEEP LAYER SHEAR WILL SUPPORT A
THREAT OF LARGE HAIL AND DAMAGING WINDS WITH STORMS ALONG THIS
BOUNDARY THROUGH LATE AFTERNOON.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 24030.


...THOMPSON

344,0803 360,0763 345,0763 333,0803

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 1:15 PM ESTSevere Thunderstorm WatchSPCAiken, Allendale, Bamberg, Barnwell, Beaufort, Calhoun and 13 more6 hr

Nearby

Severe Thunderstorm Watches in North Carolina, 2002Severe Thunderstorm Watches in South Carolina, 2002Every 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.