Alert archive / South Carolina / Tornado Warnings in 2012

Tornado Warning 13, NWS Charleston, SC

June 11, 2012Beaufort County, Jasper County, South Carolina

NWS Charleston, SC issued this tornado warning at Jun 11, 2012, 5:24 PM EDT for Beaufort County, Jasper County, South Carolina. It was in force for 36 min. 3 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: Jun 11, 2012, 5:24 PM EDT (21:24 UTC)
Expired: Jun 11, 2012, 6:00 PM EDT
In force: 36 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

Counties Beaufort County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 30 km from the middle of the area, began a volume at 21:26 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
Jun 11, 5:28 PM EDT	TSTM WND DMG	2 Nnw Jasper, SC	SPOTTER REPORTS A TREE DOWN AND ON A POWERLINE ON JASPER ROAD. ALSO...OTHER TREES DOWN IN THE WOODS ON EITHER SIDE OF THE ROAD UPROOTED AND SNAPPED OFF.
Jun 11, 5:30 PM EDT	TSTM WND DMG	4 Ne Jasper, SC	1 TREE DOWN ON LOWCOUNTRY DRIVE NEAR SNAKE ROAD.
Jun 11, 5:35 PM EDT	TSTM WND DMG	Old House, SC	TREE DOWN ON POWER LINE NEAR OLD HOUSE RD AND LOWCOUNTRY DR.

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, 9.4 hours before the alert went out and 95 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: 389 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 772 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

876 
WFUS52 KCHS 112124
TORCHS
SCC013-053-112200-
/O.NEW.KCHS.TO.W.0013.120611T2124Z-120611T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
524 PM EDT MON JUN 11 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL BEAUFORT COUNTY IN SOUTHEAST SOUTH CAROLINA...
  EAST CENTRAL JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 600 PM EDT

* AT 525 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  SOUTHWEST OF OLD HOUSE...MOVING EAST AT 25 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  OLD HOUSE...LEMON ISLAND...LAUREL BAY...CLARENDON...BURTON...PORT
  ROYAL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE SHELTER AS THUNDERSTORMS APPROACH.

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024...WHEN IT IS
SAFE TO DO SO.

&&

LAT...LON 3255 8077 3236 8067 3235 8101 3239 8103
TIME...MOT...LOC 2125Z 253DEG 23KT 3239 8094

$$

2 follow-up statements

387 
WWUS52 KCHS 112135
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
535 PM EDT MON JUN 11 2012

SCC013-053-112200-
/O.CON.KCHS.TO.W.0013.000000T0000Z-120611T2200Z/
JASPER SC-BEAUFORT SC-
535 PM EDT MON JUN 11 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR CENTRAL
BEAUFORT AND EAST CENTRAL JASPER COUNTIES...

AT 535 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR LEMON ISLAND...OR
ABOUT 8 MILES SOUTHEAST OF RIDGELAND...MOVING EAST AT 25 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3236 8089 3242 8091 3252 8076 3236 8067
TIME...MOT...LOC 2135Z 253DEG 23KT 3240 8085

$$

101 
WWUS52 KCHS 112154
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
554 PM EDT MON JUN 11 2012

SCC013-053-112204-
/O.EXP.KCHS.TO.W.0013.000000T0000Z-120611T2200Z/
JASPER SC-BEAUFORT SC-
554 PM EDT MON JUN 11 2012

...THE TORNADO WARNING FOR CENTRAL BEAUFORT AND EAST CENTRAL JASPER
COUNTIES WILL EXPIRE AT 600 PM EDT...

AT 554 PM EDT...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM WHICH
PROMPTED THE WARNING HAD MOVED OUT OF THE WARNED AREA...THUS THE
TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

LAT...LON 3236 8089 3242 8091 3252 8076 3236 8067
TIME...MOT...LOC 2154Z 253DEG 23KT 3243 8071

$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 8:28 PM EDT	Areal Flood Advisory	CHS	Berkeley	66 min
Jun 11, 2:12 AM EDT	Special Weather Statement	CHS	Beaufort	33 min
Jun 11, 3:09 AM EDT	Areal Flood Advisory	CHS	Beaufort	81 min
Jun 11, 5:23 AM EDT	Areal Flood Advisory	CHS	Beaufort	63 min
Jun 11, 2:10 PM EDT	Special Weather Statement	CHS	Hampton	50 min
Jun 11, 2:29 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester, Hampton	61 min
Jun 11, 2:35 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton, Jasper	55 min
Jun 11, 3:23 PM EDT	Special Weather Statement	CHS	Allendale	37 min
Jun 11, 3:53 PM EDT	Areal Flood Advisory	CHS	Colleton, Dorchester, Hampton, Jasper	112 min
Jun 11, 4:45 PM EDT	Special Weather Statement	CHS	Jasper	30 min
Jun 11, 5:13 PM EDT	Special Weather Statement	CHS	Jasper	32 min
Jun 11, 5:23 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	37 min
Jun 11, 6:02 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Charleston, Colleton	58 min
Jun 11, 6:34 PM EDT	Special Weather Statement	CHS	Berkeley	41 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.