Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 151, NWS Raleigh, NC

November 11, 2002Wake County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Nov 11, 2002, 9:25 AM EST for Wake County, North Carolina. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Nov 11, 2002, 9:25 AM EST (14:25 UTC)
Expired
Nov 11, 2002, 10:15 AM EST
In force
50 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Wake County, NC

What was reported inside it

TimeReportWhereRemark
Nov 11, 10:00 AM ESTThunderstorm Wind 50 ERolesville, NCSeveral trees were blown down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 11, 6:35 AM ESTTornado WatchSPC4 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 2.4 hours before the alert went out and 117 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 2002-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1142 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 2002-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 235 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
1142 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
535 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
235 m²/s²
0-3 km storm-relative helicity
237 m²/s²
Significant tornado parameter
1.9
Supercell composite
6.4

Open this sounding in Storm Lab

The text

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

692 
WUUS52 KRAH 111425
SVRRAH
NCC183-111515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
923 AM EST MON NOV 11 2002

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAKE COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 1015 AM EST

* AT 923 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM CHAPEL HILL TO     
  SANFORD...MOVING NORTHEAST AT 55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  APEX AT 935 AM
  CARY AT 940 AM
  PURNELL AT 945 AM
  KNIGHTDALE AT 950 AM
  WENDELL AT 1000 AM

DAMAGING WINDS IN EXCESS OF 58 MILES AN HOUR ARE EXPECTED FROM THIS
STORM. THESE WINDS BLOW DOWN TREES...POWER LINES...AND CAN DAMAGE
MOBILE HOMES AND BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THE STORM HAS PASSED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM EST MONDAY MORNING 
FOR CENTRAL NORTH CAROLINA. 

$$

LAT...LON 3585 7892 3561 7898 3554 7871 3578 7832
          3603 7859

DGS

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 11, 7:23 AM ESTSevere Thunderstorm WarningRAHForsyth37 min
Nov 11, 8:41 AM ESTSevere Thunderstorm WarningRAHMoore34 min
Nov 11, 8:44 AM ESTSevere Thunderstorm WarningRAHChatham46 min
Nov 11, 8:45 AM ESTSevere Thunderstorm WarningRAHAnson, Richmond45 min
Nov 11, 8:57 AM ESTSevere Thunderstorm WarningRAHLee48 min
Nov 11, 9:11 AM ESTSevere Thunderstorm WarningRAHHoke, Scotland49 min
Nov 11, 9:15 AM ESTSevere Thunderstorm WarningRAHDurham, Orange30 min
Nov 11, 9:20 AM ESTSevere Thunderstorm WarningRAHHarnett55 min
Nov 11, 9:40 AM ESTTornado WarningRAHWake35 min
Nov 11, 9:41 AM ESTSevere Thunderstorm WarningRAHCumberland49 min
Nov 11, 9:52 AM ESTTornado WarningRAHCumberland, Harnett38 min
Nov 11, 10:04 AM ESTSevere Thunderstorm WarningRAHJohnston41 min
Nov 11, 10:19 AM ESTSevere Thunderstorm WarningRAHSampson41 min
Nov 11, 10:30 AM ESTSevere Thunderstorm WarningRAHNash30 min
Nov 11, 10:34 AM ESTSevere Thunderstorm WarningRAHNash26 min
Nov 11, 10:35 AM ESTSevere Thunderstorm WarningRAHWayne40 min
Nov 11, 10:49 AM ESTTornado WarningRAHWayne26 min
Nov 11, 10:58 AM ESTSevere Thunderstorm WarningRAHSampson32 min
Nov 11, 11:18 AM ESTTornado WarningRAHWayne12 min
Nov 11, 11:18 AM ESTTornado WarningRAHWayne12 min
Nov 11, 11:24 AM ESTSevere Thunderstorm WarningRAHEdgecombe21 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.