Alert archive / South Carolina / Tornado Warnings in 2004

Tornado Warning 7, NWS Wilmington, NC

August 13, 2004Horry County, South Carolina; Brunswick County, North Carolina

NWS Wilmington, NC issued this tornado warning at Aug 13, 2004, 1:32 AM EDT for Horry County, South Carolina; Brunswick County, North Carolina. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 13, 2004, 1:32 AM EDT (05:32 UTC)
Expired
Aug 13, 2004, 2:00 AM EDT
In force
28 min
Issued by
NWS Wilmington, NC
Area
Counties, with a storm outline in the text

Counties Brunswick County, NC, Horry County, SC

The radar

The Wilmington radar (KLTX), 32 km from the middle of the area, began a volume at 05:34 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.

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 5.5 hours before the alert went out and 199 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, Newport, NC at 00:00Z on 2004-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 00:00Z on 2004-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
46 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
705 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
96 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 
WFUS52 KILM 130532
TORILM
NCC019-SCC051-130600-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
131 AM EDT FRI AUG 13 2004

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* TORNADO WARNING FOR...
  HORRY COUNTY IN NORTHEAST SOUTH CAROLINA
  BRUNSWICK COUNTY IN SOUTHEAST NORTH CAROLINA

* UNTIL 200 AM EDT

* AT 129 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NORTH
  MYRTLE BEACH...OR 15 MILES NORTHEAST OF MYRTLE BEACH...MOVING NORTH
  AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   LITTLE RIVER BY 140 AM...
   CALABASH BY 145 AM...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE 
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. 

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.


LAT...LON 3371 7885 3365 7865 3396 7852 3401 7860

$$

HOEHLER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 10:23 PM EDTSpecial Marine WarningILM67 min
Aug 12, 11:51 PM EDTSpecial Marine WarningILM54 min
Aug 13, 12:32 AM EDTSpecial Marine WarningILM118 min
Aug 13, 12:51 AM EDTSevere Thunderstorm WarningILMGeorgetown39 min
Aug 13, 4:39 AM EDTSpecial Marine WarningILM66 min
Aug 13, 3:03 PM EDTSpecial Marine WarningILM57 min
Aug 13, 3:58 PM EDTSpecial Marine WarningILM47 min
Aug 13, 4:10 AM EDTSevere Thunderstorm WarningILMPender35 min

Nearby

Tornado Warnings in South Carolina, 2004Tornado Warnings in North Carolina, 2004Every tornado warning in 2004Tornadoes in 2004

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.