Alert archive / South Carolina / Tornado Warnings in 2017

Tornado Warning 5, NWS Columbia, SC

February 9, 2017Bamberg County, Barnwell County, South Carolina

NWS Columbia, SC issued this tornado warning at Feb 9, 2017, 3:12 AM EST for Bamberg County, Barnwell County, South Carolina. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Feb 9, 2017, 3:12 AM EST (08:12 UTC)
Expired: Feb 9, 2017, 3:45 AM EST
In force: 33 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Bamberg County, SC, Barnwell County, SC

The radar

The Charleston,SC radar (KCLX), 70 km from the middle of the area, began a volume at 08:15 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 8.2 hours before the alert went out and 132 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

060 
WFUS52 KCAE 090812
TORCAE
SCC009-011-090845-
/O.NEW.KCAE.TO.W.0005.170209T0812Z-170209T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Columbia SC
312 AM EST THU FEB 9 2017

The National Weather Service in Columbia has issued a

* Tornado Warning for...
  Southeastern Barnwell County in central South Carolina...
  West central Bamberg County in central South Carolina...

* Until 345 AM EST
    
* At 311 AM EST, a severe thunderstorm capable of producing a tornado
  was located 7 miles west of Barnwell, moving east at 45 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...
  Barnwell around 320 AM EST. 

Other locations impacted by this tornadic thunderstorm include Olar,
Snelling, Hilda and Govan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3322 8156 3330 8153 3328 8101 3311 8117
TIME...MOT...LOC 0811Z 281DEG 38KT 3325 8149 

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

$$

HC

1 follow-up statement

864 
WWUS52 KCAE 090829
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
329 AM EST THU FEB 9 2017

SCC009-011-090845-
/O.CON.KCAE.TO.W.0005.000000T0000Z-170209T0845Z/
Barnwell SC-Bamberg SC-
329 AM EST THU FEB 9 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 AM EST FOR
SOUTHEASTERN BARNWELL AND WEST CENTRAL BAMBERG COUNTIES...
    
At 327 AM EST, a severe thunderstorm capable of producing a tornado
was located just southeast of near Barnwell, moving east at 45 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated.

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 tornadic thunderstorm will remain over mainly rural areas of
southeastern Barnwell and west central Bamberg Counties, including
the the area between Olar and Hilda.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3321 8140 3328 8135 3328 8101 3311 8117
TIME...MOT...LOC 0827Z 281DEG 38KT 3322 8129 

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

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 9, 1:17 AM EST	Special Weather Statement	CAE	Fairfield, Lancaster, Newberry	58 min
Feb 9, 1:38 AM EST	Special Weather Statement	CAE	Aiken, Edgefield	52 min
Feb 9, 2:12 AM EST	Special Weather Statement	CAE	Kershaw, Lee	33 min
Feb 9, 2:19 AM EST	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lee	25 min
Feb 9, 2:57 AM EST	Special Weather Statement	CAE	Bamberg, Barnwell, Calhoun, Clarendon, Orangeburg	48 min
Feb 9, 3:08 AM EST	Severe Thunderstorm Warning	CAE	Barnwell	22 min

Nearby

Tornado Warnings in South Carolina, 2017 Every tornado warning in 2017 Tornadoes in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.