Alert archive / South Carolina / Tornado Warnings in 2009

Tornado Warning 7, NWS Wilmington, NC

June 17, 2009Darlington County, Florence County, Marlboro County, South Carolina

NWS Wilmington, NC issued this tornado warning at Jun 17, 2009, 11:06 PM EDT for Darlington County, Florence County, Marlboro County, South Carolina. It was in force for 20 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
Jun 17, 2009, 11:06 PM EDT (03:06 UTC)
Expired
Jun 17, 2009, 11:26 PM EDT
In force
20 min
Issued by
NWS Wilmington, NC
Area
Storm-based polygon

Counties Darlington County, SC, Florence County, SC, Marlboro County, SC

The radar

The Wilmington radar (KLTX), 126 km from the middle of the area, began a volume at 03:07 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

Charleston AFB, SC (KCHS), launched 00:00Z, 3.1 hours before the alert went out and 167 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 00:00Z on 2009-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1334 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, Charleston AFB, SC at 00:00Z on 2009-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
1334 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KILM 180306
TORILM
SCC031-041-069-180330-
/O.NEW.KILM.TO.W.0007.090618T0306Z-090618T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
1106 PM EDT WED JUN 17 2009

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN FLORENCE COUNTY IN NORTHEAST SOUTH CAROLINA
  EASTERN DARLINGTON COUNTY IN NORTHEAST SOUTH CAROLINA
  SOUTHERN MARLBORO COUNTY IN NORTHEAST SOUTH CAROLINA

* UNTIL 1130 PM EDT

* AT 1103 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  NORTHEAST OF MONT CLARE...OR ABOUT 12 MILES SOUTH OF
  BENNETTSVILLE...MOVING SOUTH AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   MONT CLARE BY 1120 PM...
   MECHANICSVILLE BY 1130 PM...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
NICKEL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET UNDER A TABLE OR OTHER PIECE OF STURDY FURNITURE. SEEK SHELTER ON
THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH
AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS
STAY AWAY FROM WINDOWS.

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

&&

PLEASE REPORT HAIL...DOWNED TREES OR DAMAGING WINDS TO THE NATIONAL
WEATHER SERVICE IN WILMINGTON NC...TOLL FREE AT 877-633-6772...WHEN
YOU CAN DO SO SAFELY.

LAT...LON 3452 7986 3454 7983 3455 7964 3434 7960
      3429 7964 3429 7963 3429 7959 3425 7959
      3423 7986
TIME...MOT...LOC 0305Z 356DEG 12KT 3446 7974

$$

BACON
2 follow-up statements
000 
WWUS52 KILM 180324
SVSILM

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1124 PM EDT WED JUN 17 2009

SCC031-041-069-180330-
/O.CON.KILM.TO.W.0007.000000T0000Z-090618T0330Z/
MARLBORO SC-DARLINGTON SC-FLORENCE SC-
1124 PM EDT WED JUN 17 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR NORTH
CENTRAL FLORENCE...EASTERN DARLINGTON AND SOUTH CENTRAL MARLBORO
COUNTIES...

AT 1121 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 
NEAR MONT CLARE. THIS TORNADO WAS JUST NORTHEAST MECHANICSVILLE...
OR 10 MILES NORTHEAST OF DARLINGTON...MOVING SOUTH AT 15 MPH.

THE TORNADO WILL BE NEAR...
   MECHANICSVILLE BY 1130 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

PLEASE REPORT HAIL...DOWNED TREES OR DAMAGING WINDS TO THE NATIONAL
WEATHER SERVICE IN WILMINGTON NC...TOLL FREE AT 877-633-6772...WHEN
YOU CAN DO SO SAFELY.

LAT...LON 3449 7963 3435 7960 3429 7964 3429 7959
      3425 7959 3423 7986 3440 7986 3441 7986
      3443 7986
TIME...MOT...LOC 0323Z 356DEG 12KT 3440 7974

$$

BACON
000 
WWUS52 KILM 180326
SVSILM

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1126 PM EDT WED JUN 17 2009

SCC031-041-069-180336-
/O.CAN.KILM.TO.W.0007.000000T0000Z-090618T0330Z/
MARLBORO SC-DARLINGTON SC-FLORENCE SC-
1126 PM EDT WED JUN 17 2009

...THE TORNADO WARNING FOR NORTH CENTRAL FLORENCE...EASTERN
DARLINGTON AND SOUTH CENTRAL MARLBORO COUNTIES IS CANCELED...

AT 1125 PM EDT...THE THUNDERSTORM PRODUCING THE POSSIBLE TORNADO
WHICH PROMPTED THE WARNING HAS WEAKENED...THEREFORE THE TORNADO
WARNING HAS BEEN CANCELED.

PLEASE REPORT HAIL...DOWNED TREES OR DAMAGING WINDS TO THE NATIONAL
WEATHER SERVICE IN WILMINGTON NC...TOLL FREE AT 877-633-6772...WHEN
YOU CAN DO SO SAFELY.

LAT...LON 3449 7963 3435 7960 3429 7964 3429 7959
      3425 7959 3423 7986 3440 7986 3441 7986
      3443 7986
TIME...MOT...LOC 0326Z 356DEG 12KT 3439 7974

$$

BACON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 10:09 PM EDTSevere Thunderstorm WarningILMDarlington, Marlboro66 min
Jun 17, 10:15 PM EDTSevere Thunderstorm WarningILMDillon, Marlboro60 min
Jun 17, 10:52 PM EDTTornado WarningILMDillon, Marlboro20 min
Jun 18, 3:01 PM EDTHeat AdvisoryILMDarlington, Dillon, Florence, Marion, Marlboro, Williamsburg24 hr

Nearby

Tornado Warnings in South Carolina, 2009Every tornado warning in 2009Tornadoes in 2009

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.