Alert archive / South Carolina / Tornado Warnings in 2012

Tornado Warning 2, NWS Wilmington, NC

May 14, 2012Horry County, Marion County, South Carolina

NWS Wilmington, NC issued this tornado warning at May 14, 2012, 4:33 PM EDT for Horry County, Marion County, South Carolina. It was in force for 27 min. 2 reports 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: May 14, 2012, 4:33 PM EDT (20:33 UTC)
Expired: May 14, 2012, 5:00 PM EDT
In force: 27 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon

Counties Horry County, SC, Marion County, SC

The radar

The Wilmington radar (KLTX), 69 km from the middle of the area, began a volume at 20:36 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
May 14, 4:39 PM EDT	HAIL 1	Conway, SC	QUARTER SIZE HAIL REPORTED IN DOWNTOWN CONWAY.
May 14, 4:43 PM EDT	HAIL 0.88	Conway, SC	NICKEL SIZE HAIL REPORTED IN CONWAY.

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.6 hours before the alert went out and 131 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: 518 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

524 
WFUS52 KILM 142033
TORILM
SCC051-067-142100-
/O.NEW.KILM.TO.W.0002.120514T2033Z-120514T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
433 PM EDT MON MAY 14 2012

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN HORRY COUNTY IN NORTHEAST SOUTH CAROLINA
  SOUTHEASTERN MARION COUNTY IN NORTHEAST SOUTH CAROLINA

* UNTIL 500 PM EDT

* AT 433 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR PEE DEE
  CROSSROADS...OR ABOUT 11 MILES WEST OF CONWAY...MOVING EAST AT 15
  MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
   PEE DEE CROSSROADS...
   CONWAY...

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 3392 7910 3380 7899 3375 7927 3381 7931
TIME...MOT...LOC 2033Z 248DEG 15KT 3380 7923

$$

III

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 12:56 PM EDT	Special Weather Statement	ILM	Darlington, Marlboro	79 min
May 14, 1:07 PM EDT	Special Weather Statement	ILM	Florence, Williamsburg	53 min
May 14, 2:04 PM EDT	Special Weather Statement	ILM	Dillon, Florence, Marion	56 min
May 14, 2:18 PM EDT	Special Weather Statement	ILM	Williamsburg	57 min
May 14, 3:17 PM EDT	Severe Thunderstorm Warning	ILM	Dillon, Florence, Horry, Marion	58 min
May 14, 3:22 PM EDT	Severe Thunderstorm Warning	ILM	Florence, Georgetown, Horry, Marion, Williamsburg	32 min
May 14, 4:07 PM EDT	Severe Thunderstorm Warning	ILM	Dillon, Horry, Marion	68 min
May 14, 4:14 PM EDT	Tornado Warning	ILM	Horry	31 min
May 14, 4:23 PM EDT	Severe Thunderstorm Warning	ILM	Florence, Georgetown, Horry, Marion, Williamsburg	67 min
May 14, 4:47 PM EDT	Tornado Warning	ILM	Horry	43 min
May 14, 5:10 PM EDT	Areal Flood Warning	ILM	Horry	3 hr
May 14, 5:17 PM EDT	Severe Thunderstorm Warning	ILM	Horry	58 min
May 14, 6:01 PM EDT	Severe Thunderstorm Warning	ILM	Horry	59 min
May 14, 6:04 PM EDT	Special Marine Warning	ILM		56 min
May 14, 6:37 PM EDT	Special Weather Statement	ILM	Horry	53 min

Nearby

Tornado Warnings in South Carolina, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.