Alert archive / South Carolina / Tornado Warnings in 2020

Tornado Warning 10, NWS Columbia, SC

April 13, 2020Bamberg County, Barnwell County, Orangeburg County, South Carolina

NWS Columbia, SC issued this tornado warning at Apr 13, 2020, 5:43 AM EDT for Bamberg County, Barnwell County, Orangeburg County, South Carolina. It was in force for 32 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
Apr 13, 2020, 5:43 AM EDT (09:43 UTC)
Expired
Apr 13, 2020, 6:15 AM EDT
In force
32 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Bamberg County, SC, Barnwell County, SC, Orangeburg County, SC

The radar

The Charleston,SC radar (KCLX), 66 km from the middle of the area, began a volume at 09:42 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

TimeReportWhereRemark
Apr 13, 5:49 AM EDTTORNADO3 S Blackville, SCA TORNADO STARTED JUST SOUTH OF BLACKVILLE, SC EAST OF WHITEHALL DRIVE NEAR TOBY CREEK. THE TORNADO DAMAGED SEVERAL CHICKEN HOUSES BY CAUSING THE WALLS TO COLLAPSE IN A FEW PLACES. THE TORNADO THEN MOVED NORTHEAST CROSSING A LARGE EMPTY FIELD, BEFORE INTENSIFY
Apr 13, 5:50 AM EDTTORNADO5 Ssw Hilda, SCA TORNADO TOUCHED DOWN IN FAR SOUTHEAST BARNWELL MOVING NORTHEASTWARD TOWARD THE BAMBERG COUNTY LINE SOUTHEAST OF THE TOWN OF HILDA, BRIEFLY INTENSIFYING TO A STRONG TORNADO ALONG HARTZOG ROAD. THE TORNADO LENGTH WAS 5.5 MILES AND HAD A WIDTH OF 800 YARDS AT I
Apr 13, 5:52 AM EDTTSTM WND DMG1 Sse Hilda, SCCOOP OBSERVER REPORTED POSSIBLE TORNADO DAMAGE TO NEIGHBORS HOUSE AND HIS FENCELINE. TIME ESTIMATED BY 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.

IssuedProductOfficeLasted
Apr 13, 3:20 AM EDTTornado WatchSPC8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 9.7 hours before the alert went out and 123 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-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2020-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2020-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 371 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
944 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
371 m²/s²
0-3 km storm-relative helicity
494 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

364 
WFUS52 KCAE 130943
TORCAE
SCC009-011-075-131015-
/O.NEW.KCAE.TO.W.0010.200413T0943Z-200413T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Columbia SC
543 AM EDT Mon Apr 13 2020

The National Weather Service in Columbia has issued a

* Tornado Warning for...
  Southeastern Barnwell County in central South Carolina...
  Northern Bamberg County in central South Carolina...
  Southwestern Orangeburg County in central South Carolina...

* Until 615 AM EDT.
    
* At 542 AM EDT, a severe thunderstorm capable of producing a tornado
  was located near Barnwell, moving northeast at 55 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Blackville and Barnwell State Park around 555 AM EDT.
  Denmark around 600 AM EDT.
  Bamberg around 610 AM EDT.

Other locations impacted by this tornadic thunderstorm include Cope,
Govan, Olar, Bamberg County Airport, Kline, Barnwell County Airport,
Hilda and Snelling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are nearly impossible to see at night. Do not wait to see
or hear the tornado. Immediately move to an interior room or closet
on the lowest floor of a sturdy building.

&&

LAT...LON 3312 8140 3313 8145 3328 8144 3348 8102
      3328 8083 3310 8131
TIME...MOT...LOC 0942Z 245DEG 46KT 3320 8141 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

HC
1 follow-up statement
372 
WWUS52 KCAE 131005
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
605 AM EDT Mon Apr 13 2020

SCC009-011-075-131015-
/O.CON.KCAE.TO.W.0010.000000T0000Z-200413T1015Z/
Barnwell SC-Bamberg SC-Orangeburg SC-
605 AM EDT Mon Apr 13 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 AM EDT FOR
SOUTHEASTERN BARNWELL...NORTHERN BAMBERG AND SOUTHWESTERN ORANGEBURG
COUNTIES...
        
At 605 AM EDT, a confirmed large and extremely dangerous tornado was
located near Bamberg, moving northeast at 60 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Barnwell, northern Bamberg and southwestern Orangeburg
Counties, including the following locations... Cope, Olar, Bamberg
County Airport and Govan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are nearly impossible to see at night. Do not wait to see
or hear the tornado. Immediately move to an interior room or closet
on the lowest floor of a sturdy building.

&&

LAT...LON 3341 8116 3348 8102 3328 8083 3310 8131
      3321 8125
TIME...MOT...LOC 1005Z 236DEG 54KT 3337 8106 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...<.75IN

$$

HC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 4:23 AM EDTTornado WarningCAEEdgefield, McCormick37 min
Apr 13, 4:29 AM EDTSevere Thunderstorm WarningCAEEdgefield, McCormick, Newberry, Saluda46 min
Apr 13, 4:41 AM EDTSevere Thunderstorm WarningCAEFairfield, Newberry, Saluda49 min
Apr 13, 4:58 AM EDTSevere Thunderstorm WarningCAEAiken, Barnwell47 min
Apr 13, 5:06 AM EDTSevere Thunderstorm WarningCAEAiken, Edgefield, Lexington, Newberry, Saluda39 min
Apr 13, 5:14 AM EDTTornado WarningCAEAiken, Barnwell31 min
Apr 13, 5:16 AM EDTSevere Thunderstorm WarningCAEFairfield, Kershaw, Lancaster29 min
Apr 13, 5:34 AM EDTSevere Thunderstorm WarningCAEAiken, Calhoun, Fairfield, Lexington, Newberry, Richland41 min
Apr 13, 5:37 AM EDTTornado Warning Tornado observedConsiderable damage threatCAEAiken, Bamberg, Barnwell, Orangeburg23 min
Apr 13, 5:55 AM EDTSevere Thunderstorm WarningCAEFairfield, Kershaw, Lancaster35 min
Apr 13, 5:56 AM EDTTornado Warning Tornado observedConsiderable damage threatCAEAiken, Bamberg, Barnwell, Calhoun, Lexington, Orangeburg34 min
Apr 13, 6:02 AM EDTSevere Thunderstorm WarningCAEAiken, Lexington, Orangeburg28 min
Apr 13, 6:04 AM EDTSevere Thunderstorm WarningCAECalhoun, Fairfield, Kershaw, Lexington, Richland, Sumter41 min
Apr 13, 6:09 AM EDTTornado WarningCAEBamberg, Barnwell, Orangeburg36 min
Apr 13, 6:13 AM EDTTornado WarningCAEBamberg, Calhoun, Orangeburg32 min
Apr 13, 6:22 AM EDTTornado Warning Tornado observedConsiderable damage threatCAECalhoun, Clarendon, Orangeburg, Richland, Sumter23 min
Apr 13, 6:23 AM EDTSevere Thunderstorm WarningCAEChesterfield, Kershaw, Lancaster52 min
Apr 13, 6:35 AM EDTSevere Thunderstorm WarningCAEBamberg, Calhoun, Clarendon, Orangeburg, Sumter40 min
Apr 13, 6:39 AM EDTSevere Thunderstorm WarningCAECalhoun, Clarendon, Kershaw, Lee, Richland, Sumter31 min
Apr 13, 6:46 AM EDTSevere Thunderstorm WarningCAEChesterfield29 min
Apr 13, 6:58 AM EDTSevere Thunderstorm WarningCAEClarendon, Lee, Sumter32 min

Nearby

Tornado Warnings in South Carolina, 2020Every tornado warning in 2020Tornadoes in 2020

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.