Alert archive / South Carolina / Tornado Warnings in 2011

Tornado Warning 6, NWS Columbia, SC

April 16, 2011Clarendon County, South Carolina

NWS Columbia, SC issued this tornado warning at Apr 16, 2011, 3:12 PM EDT for Clarendon County, South Carolina. It was in force for 33 min. 4 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: Apr 16, 2011, 3:12 PM EDT (19:12 UTC)
Expired: Apr 16, 2011, 3:45 PM EDT
In force: 33 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 104 km from the middle of the area, began a volume at 19:13 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, 3:27 PM EDT	TORNADO	9 Ne Manning, SC	A NWS STORM SURVEY FOUND AND EF0 TORNADO IN EASTERN CLARENDON COUNTY. THE PATH CONSISTED OF INTERMITTENT TOUCHDOWNS THAT WAS A LENGTH OF 5 MILES. THE WIDTH RANGED FROM 20 TO 40 YARDS. THE DAMAGE CONSISTED OF DOWNED TREES. THE TORNADO FORMED NEAR BREWINGTON AND
Apr 16, 3:28 PM EDT	HAIL 4.25	7 Ne Manning, SC	SOFTBALL SIZE HAIL AT HWY 301 AND NORTH BREWINGTON ROAD CAUSING DAMAGE TO ROOFS AND VEHICLES.
Apr 16, 3:35 PM EDT	HAIL 1.75	Turbeville, SC	GOLF BALL SIZED HAIL REPORTED BY SHERIFF IN TURBEVILLE.
Apr 16, 3:38 PM EDT	HAIL 4.25	Turbeville, SC	SOFTBALL SIZE HAIL REPORTED AT FIRE STATION 2. TIME ESTIMATED FROM RADAR.

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, 7.2 hours before the alert went out and 99 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.

152 
WFUS52 KCAE 161912
TORCAE
SCC027-161945-
/O.NEW.KCAE.TO.W.0006.110416T1912Z-110416T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
312 PM EDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 345 PM EDT

* AT 308 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MANNING...
  MOVING NORTHEAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  TURBEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...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 CENTRAL SOUTH CAROLINA.

&&

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE...TOLL FREE 1 877 6 3
3...6 7 7 2.

LAT...LON 3382 7991 3381 7995 3377 7999 3372 7997
      3371 7999 3368 8000 3363 8032 3369 8036
      3395 7997 3389 7995 3390 7992 3387 7988
TIME...MOT...LOC 1911Z 231DEG 49KT 3371 8023

$$

SMITH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 12:05 AM EDT	Special Weather Statement	CAE	McCormick	55 min
Apr 16, 1:03 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Richland	42 min
Apr 16, 1:26 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Kershaw, Richland, Sumter	49 min
Apr 16, 1:33 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lancaster, Lee	57 min
Apr 16, 1:56 PM EDT	Tornado Warning	CAE	Chesterfield	19 min
Apr 16, 2:11 PM EDT	Severe Thunderstorm Warning	CAE	Lee, Sumter	49 min
Apr 16, 2:17 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg, Richland, Sumter	43 min
Apr 16, 2:48 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Lee, Orangeburg, Sumter	42 min
Apr 16, 3:57 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Orangeburg	48 min
Apr 16, 4:12 PM EDT	Tornado Warning	CAE	Clarendon	33 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.