Alert archive / South Carolina / Tornado Warnings in 2017

Tornado Warning 3, NWS Columbia, SC

January 21, 2017Bamberg County, Barnwell County, Orangeburg County, South Carolina

NWS Columbia, SC issued this tornado warning at Jan 21, 2017, 3:50 PM EST for Bamberg County, Barnwell County, Orangeburg County, South Carolina. It was in force for 25 min. 14 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: Jan 21, 2017, 3:50 PM EST (20:50 UTC)
Expired: Jan 21, 2017, 4:15 PM EST
In force: 25 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 Columbia radar (KCAE), 67 km from the middle of the area, began a volume at 20:53 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
Jan 21, 3:52 PM EST	TSTM WND DMG	2 Ssw Blackville, SC	NUMEROUS TREES DOWN IN BARNWELL STATE PARK. 20-30 PEOPLE ARE STILL TRAPPED INSIDE THE PARK AS OF 6PM.
Jan 21, 3:52 PM EST	TSTM WND DMG	3 Ssw Blackville, SC	* 1 INJ * MOBILE HOME DESTROYED AT PLEASANT HOME RD AND HWY 3. A FEMALE INSIDE THE MOBILE HOME WAS TRAPPED, RESCUED AND TRANSPORTED TO THE HOSPITAL. EXTENT OF INJURIES UNKNOWN AT THIS TIME.
Jan 21, 3:52 PM EST	TORNADO	2 Ssw Blackville, SC	NUMEROUS TREES DOWN IN BARNWELL STATE PARK. 20-30 PEOPLE ARE STILL TRAPPED INSIDE THE PARK AS OF 6PM.
Jan 21, 3:52 PM EST	TORNADO	3 Ssw Blackville, SC	* 1 INJ * MOBILE HOME DESTROYED AT PLEASANT HOME RD AND HWY 3. A FEMALE INSIDE THE MOBILE HOME WAS TRAPPED, RESCUED AND TRANSPORTED TO THE HOSPITAL. EXTENT OF INJURIES UNKNOWN AT THIS TIME.
Jan 21, 4:00 PM EST	TSTM WND DMG	5 Ene Blackville, SC	PUBLIC REPORTED TREES DOWN AND POWER POLES SNAPPED ON GARDENIA RD NEAR DALLY RD. PHOTOS RELAYED VIA SOCIAL MEDIA. .
Jan 21, 4:00 PM EST	TORNADO	5 Ene Blackville, SC	PUBLIC REPORTED TREES DOWN AND POWER POLES SNAPPED ON GARDENIA RD NEAR DALLY RD. PHOTOS RELAYED VIA SOCIAL MEDIA. .
Jan 21, 4:02 PM EST	TSTM WND DMG	3 Wnw Denmark, SC	NUMEROUS TREES DOWN ON US HWY 78 WEST OF DENMARK. ROAD IMPASSABLE AND TRAFFIC BEING DETOURED.
Jan 21, 4:02 PM EST	TORNADO	3 Wnw Denmark, SC	NUMEROUS TREES DOWN ON US HWY 78 WEST OF DENMARK. ROAD IMPASSABLE AND TRAFFIC BEING DETOURED.
Jan 21, 4:05 PM EST	TSTM WND DMG	4 S Norway, SC	PUBLIC REPORT OF TREES DOWN ON US HWY 321 NEAR ORANGEBURG-BAMBERG CO LINE. PHOTOS RELAYED VIA SOCIAL MEDIA.
Jan 21, 4:05 PM EST	TSTM WND DMG	4 W Cope, SC	TREES DOWN ON HWY 70 AT ORANGEBURG-BAMBERG CO LINE. PHOTO RELAYED VIA SOCIAL MEDIA.
Jan 21, 4:05 PM EST	TORNADO	4 S Norway, SC	PUBLIC REPORT OF TREES DOWN ON US HWY 321 NEAR ORANGEBURG-BAMBERG CO LINE. PHOTOS RELAYED VIA SOCIAL MEDIA.
Jan 21, 4:05 PM EST	TORNADO	4 W Cope, SC	TREES DOWN ON HWY 70 AT ORANGEBURG-BAMBERG CO LINE. PHOTO RELAYED VIA SOCIAL MEDIA.
Jan 21, 4:10 PM EST	TSTM WND DMG	2 Wnw Cope, SC	TREES DOWN AT HWY 70 AND HWY 332. PHOTOS RELAYED VIA SOCIAL MEDIA.
Jan 21, 4:10 PM EST	TORNADO	2 Wnw Cope, SC	TREES DOWN AT HWY 70 AND HWY 332. PHOTOS RELAYED VIA SOCIAL MEDIA.

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
Jan 21, 1:51 PM EST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.8 hours before the alert went out and 124 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: 138 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 581 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

998 
WFUS52 KCAE 212050
TORCAE
SCC009-011-075-212115-
/O.NEW.KCAE.TO.W.0003.170121T2050Z-170121T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Columbia SC
350 PM EST SAT JAN 21 2017

The National Weather Service in Columbia has issued a

* Tornado Warning for...
  East central Barnwell County in central South Carolina...
  Northwestern Bamberg County in central South Carolina...
  West central Orangeburg County in central South Carolina...

* Until 415 PM EST
    
* At 350 PM EST, a severe thunderstorm capable of producing a tornado
  was located over Blackville, or 8 miles northeast 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...
  Denmark around 400 PM EST. 

Other locations impacted by this tornadic thunderstorm include
Norway.

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 3329 8132 3335 8134 3348 8109 3335 8100
TIME...MOT...LOC 2050Z 249DEG 39KT 3334 8128 

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

$$

CJR

1 follow-up statement

312 
WWUS52 KCAE 212100
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
400 PM EST SAT JAN 21 2017

SCC011-212109-
/O.CAN.KCAE.TO.W.0003.000000T0000Z-170121T2115Z/
Barnwell SC-
400 PM EST SAT JAN 21 2017

...THE TORNADO WARNING FOR EAST CENTRAL BARNWELL COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of Barnwell County therefore the warning has been cancelled in 
Barnwell but continues for Bamberg and Orangeburg.

A tornado watch remains in effect until 700 PM EST for central South
Carolina.

LAT...LON 3338 8122 3339 8121 3346 8108 3335 8100
      3332 8122
TIME...MOT...LOC 2059Z 250DEG 39KT 3337 8117 

$$

SCC009-075-212115-
/O.CON.KCAE.TO.W.0003.000000T0000Z-170121T2115Z/
Bamberg SC-Orangeburg SC-
400 PM EST SAT JAN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EST FOR
NORTHWESTERN BAMBERG AND WEST CENTRAL ORANGEBURG COUNTIES...
    
At 359 PM EST, a severe thunderstorm capable of producing a tornado
was located near Denmark, 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Bamberg and west central Orangeburg Counties.

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 3338 8122 3339 8121 3346 8108 3335 8100
      3332 8122
TIME...MOT...LOC 2059Z 250DEG 39KT 3337 8117 

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

$$

CJR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 1:53 AM EST	Dense Fog Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more	9 hr
Jan 21, 12:07 PM EST	Special Weather Statement	CAE	Barnwell	38 min
Jan 21, 1:00 PM EST	Special Weather Statement	CAE	Calhoun	30 min
Jan 21, 3:43 PM EST	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell, Orangeburg	62 min
Jan 21, 4:15 PM EST	Tornado Warning	CAE	Orangeburg	17 min
Jan 21, 4:38 PM EST	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	67 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.