Alert archive / South Carolina / Tornado Warnings in 2011

Tornado Warning 11, NWS Wilmington, NC

April 16, 2011Georgetown County, South Carolina

NWS Wilmington, NC issued this tornado warning at Apr 16, 2011, 6:19 PM EDT for Georgetown County, South Carolina. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 16, 2011, 6:19 PM EDT (22:19 UTC)
Expired: Apr 16, 2011, 6:45 PM EDT
In force: 26 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon

County Georgetown County, SC

The radar

The Wilmington radar (KLTX), 106 km from the middle of the area, began a volume at 22:19 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.

What was reported inside it

Time	Report	Where	Remark
Apr 16, 6:29 PM EDT	TSTM WND DMG	4 N Sampit, SC	MANY TREES DOWN. INDIAN HUT ROAD AT TALLOWTREE DRIVE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 16, 12:02 PM EDT	Tornado Watch PDS	SPC	11 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.3 hours before the alert went out and 83 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 421 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 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.

294 
WFUS52 KILM 162219
TORILM
SCC043-162245-
/O.NEW.KILM.TO.W.0011.110416T2219Z-110416T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
619 PM EDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL GEORGETOWN COUNTY IN NORTHEAST SOUTH CAROLINA

* UNTIL 645 PM EDT

* AT 614 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR LAMBERT...
  OR ABOUT 16 MILES WEST OF GEORGETOWN...MOVING NORTHEAST AT 60 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
   GRAVES...
   OATLAND...
   JACKSON...
   MURRELLS INLET...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLF BALL 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH CAROLINA.

&&

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 3325 7955 3334 7966 3367 7915 3358 7911
      3356 7902 3334 7916 3330 7920 3330 7923
      3328 7922 3330 7927 3333 7927 3334 7925
      3338 7927 3329 7929 3327 7926 3322 7946
TIME...MOT...LOC 2219Z 239DEG 51KT 3332 7949

$$

DCH

1 follow-up statement

110 
WWUS52 KILM 162251
SVSILM

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
651 PM EDT SAT APR 16 2011

SCC043-162301-
/O.EXP.KILM.TO.W.0011.000000T0000Z-110416T2245Z/
GEORGETOWN SC-
651 PM EDT SAT APR 16 2011

...THE TORNADO WARNING FOR CENTRAL GEORGETOWN COUNTY HAS EXPIRED...

AT 648 PM EDT...THE TORNADO WHICH PROMPTED THE WARNING HAS
DISSIPATED...THEREFORE THE TORNADO WARNING WAS ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH CAROLINA.

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 3325 7955 3334 7966 3367 7915 3358 7911
      3356 7902 3334 7916 3330 7920 3330 7923
      3328 7922 3330 7927 3333 7927 3334 7925
      3338 7927 3329 7929 3327 7926 3322 7946
TIME...MOT...LOC 2219Z 239DEG 51KT 3332 7949

$$

DCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 12:07 PM EDT	Tornado Warning	ILM	Dillon, Horry, Marion	37 min
Apr 16, 1:16 PM EDT	Special Weather Statement	ILM	Horry	29 min
Apr 16, 2:16 PM EDT	Severe Thunderstorm Warning	ILM	Darlington, Dillon, Florence, Marlboro	44 min
Apr 16, 2:48 PM EDT	Tornado Warning	ILM	Darlington, Dillon, Marlboro	42 min
Apr 16, 3:15 PM EDT	Severe Thunderstorm Warning	ILM	Dillon, Marlboro	70 min
Apr 16, 3:27 PM EDT	Tornado Warning	ILM	Dillon, Marlboro	48 min
Apr 16, 3:40 PM EDT	Severe Thunderstorm Warning	ILM	Dillon, Florence, Georgetown, Horry, Marion, Williamsburg	35 min
Apr 16, 4:17 PM EDT	Tornado Warning	ILM	Dillon, Horry, Marion	58 min
Apr 16, 4:18 PM EDT	Tornado Warning	ILM	Florence, Williamsburg	42 min
Apr 16, 4:49 PM EDT	Severe Thunderstorm Warning	ILM	Dillon, Florence, Horry, Marion, Williamsburg	41 min
Apr 16, 5:03 PM EDT	Tornado Warning	ILM	Florence, Georgetown, Horry, Marion, Williamsburg	42 min
Apr 16, 5:03 PM EDT	Tornado Warning	ILM	Dillon, Horry	57 min
Apr 16, 5:28 PM EDT	Tornado Warning	ILM	Georgetown, Williamsburg	47 min
Apr 16, 5:48 PM EDT	Severe Thunderstorm Warning	ILM	Horry	42 min
Apr 16, 6:47 PM EDT	Special Marine Warning	ILM		43 min
Apr 16, 7:10 PM EDT	Special Marine Warning	ILM		110 min
Apr 16, 7:48 PM EDT	Special Marine Warning	ILM		57 min

Nearby

Tornado Warnings in South Carolina, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.