Alert archive / South Carolina / Tornado Warnings in 2011

Tornado Warning 14, NWS Columbia, SC

November 16, 2011Aiken County, Barnwell County, South Carolina

NWS Columbia, SC issued this tornado warning at Nov 16, 2011, 5:49 PM EST for Aiken County, Barnwell County, South Carolina. It was in force for 41 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: Nov 16, 2011, 5:49 PM EST (22:49 UTC)
Expired: Nov 16, 2011, 6:30 PM EST
In force: 41 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Aiken County, SC, Barnwell County, SC

The radar

The Charleston,SC radar (KCLX), 91 km from the middle of the area, began a volume at 22:50 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
Nov 16, 5:57 PM EST	TORNADO	5 Se Jackson, SC	AIKEN COUNTY EM REPORTS POSSIBLE TORNADO ON ATOMIC ROAD NEAR JACKSON

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
Nov 16, 1:35 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.8 hours before the alert went out and 165 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: 347 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 485 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

847 
WFUS52 KCAE 162249
TORCAE
SCC003-011-162330-
/O.NEW.KCAE.TO.W.0014.111116T2249Z-111116T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
549 PM EST WED NOV 16 2011

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN AIKEN COUNTY IN CENTRAL SOUTH CAROLINA
  BARNWELL COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 630 PM EST

* AT 548 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES WEST OF
  SAVANNAH RIVER SITE...MOVING NORTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SAVANNAH RIVER SITE...BARNWELL AND WILLISTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL MIDNIGHT EST THURSDAY MORNING FOR
CENTRAL SOUTH CAROLINA.

&&

LAT...LON 3316 8177 3318 8177 3320 8176 3322 8178
      3321 8178 3321 8180 3325 8185 3326 8185
      3326 8183 3327 8183 3353 8139 3327 8123
      3314 8173
TIME...MOT...LOC 2249Z 235DEG 33KT 3323 8178

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 16, 3:48 AM EST	Lake Wind Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more	20 hr
Nov 16, 4:50 PM EST	Severe Thunderstorm Warning	CAE	Aiken	55 min
Nov 16, 5:36 PM EST	Tornado Warning	CAE	Lancaster	33 min
Nov 16, 6:32 PM EST	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell, Calhoun, Lexington, Orangeburg	58 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.