Alert archive / South Carolina / Tornado Warnings in 2013

Tornado Warning 4, NWS Columbia, SC

April 28, 2013Fairfield County, South Carolina

NWS Columbia, SC issued this tornado warning at Apr 28, 2013, 7:47 PM EDT for Fairfield County, South Carolina. It was in force for 43 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 28, 2013, 7:47 PM EDT (23:47 UTC)
Expired: Apr 28, 2013, 8:30 PM EDT
In force: 43 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Fairfield County, SC

The radar

The Columbia radar (KCAE), 53 km from the middle of the area, began a volume at 23:47 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 28, 7:47 PM EDT	TORNADO 0	3 E Ridgeway, SC	NWS STORM SURVEY REVEALED A WEAK TORNADO OCCURRED...PRODUCING DAMAGE ON MOOD HARRISON RD. ABOUT 6 TREES WERE TOPPLED...AND SEVERAL LARGE LIMBS WERE DOWNED. THE ANTENNA TO A MOBILE HOME WAS DAMAGED. A CAR EXPERIENCED MINOR DAMAGE DUE TO A FALLEN TREE.

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, 11.8 hours before the alert went out and 182 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: 150 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 598 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

856 
WFUS52 KCAE 282347
TORCAE
SCC039-290030-
/O.NEW.KCAE.TO.W.0004.130428T2347Z-130429T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
747 PM EDT SUN APR 28 2013

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN FAIRFIELD COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 830 PM EDT

* AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER FAIRFIELD
  COUNTY...OR ABOUT 11 MILES EAST OF WINNSBORO...MOVING NORTHEAST AT
  5 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY.

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 USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS.

1 877 6 3 3...6 7 7 2.

&&

LAT...LON 3440 8078 3438 8078 3428 8088 3431 8098
      3446 8092
TIME...MOT...LOC 2347Z 209DEG 7KT 3433 8091

$$

AWP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 6:13 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	47 min
Apr 28, 6:31 PM EDT	Special Weather Statement	CAE	Fairfield	29 min

Nearby

Tornado Warnings in South Carolina, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.