Alert archive / South Carolina / Tornado Warnings in 2009

Tornado Warning 10, NWS Columbia, SC

April 11, 2009Barnwell County, South Carolina

NWS Columbia, SC issued this tornado warning at Apr 11, 2009, 1:12 AM EDT for Barnwell County, South Carolina. It was in force for 48 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: Apr 11, 2009, 1:12 AM EDT (05:12 UTC)
Expired: Apr 11, 2009, 2:00 AM EDT
In force: 48 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Barnwell County, SC

The radar

The Charleston,SC radar (KCLX), 74 km from the middle of the area, began a volume at 05:14 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 10, 9:24 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 5.2 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 197 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KCAE 110512
TORCAE
SCC011-110600-
/O.NEW.KCAE.TO.W.0010.090411T0512Z-090411T0600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
112 AM EDT SAT APR 11 2009

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

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

* UNTIL 200 AM EDT

* AT 111 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 25 MILES WEST OF
  BARNWELL...OR ABOUT 14 MILES EAST OF WAYNESBORO...MOVING EAST AT 45
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SNELLING...KLINE AND HILDA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SATURDAY MORNING
FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE IN COLUMBIA TOLL FREE
AT 1 800 7 7 5 7 1 9 9.

LAT...LON 3315 8176 3317 8176 3319 8176 3321 8174
      3331 8121 3312 8122 3311 8140 3312 8142
      3315 8153 3310 8159 3310 8165
TIME...MOT...LOC 0513Z 257DEG 41KT 3317 8176

$$

SJN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 8:18 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	42 min
Apr 10, 8:29 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	46 min
Apr 10, 8:54 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, Saluda	51 min
Apr 10, 9:24 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Lexington, Newberry, Richland	51 min
Apr 10, 9:40 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Richland	50 min
Apr 10, 10:06 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Fairfield, Kershaw, Lee, Richland, Sumter	24 min
Apr 10, 10:27 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	48 min
Apr 10, 10:31 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	44 min
Apr 10, 10:34 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Kershaw, Lee, Richland, Sumter	56 min
Apr 10, 10:41 PM EDT	Tornado Warning	CAE	Aiken	34 min
Apr 10, 11:12 PM EDT	Tornado Warning	CAE	Aiken, Barnwell, Orangeburg	48 min
Apr 10, 11:22 PM EDT	Areal Flood Advisory	CAE	Aiken, Barnwell	113 min
Apr 10, 11:38 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Orangeburg	67 min
Apr 10, 11:51 PM EDT	Tornado Warning	CAE	Bamberg, Calhoun, Orangeburg	39 min
Apr 11, 12:05 AM EDT	Tornado Warning	CAE	Barnwell	40 min
Apr 11, 12:49 AM EDT	Severe Thunderstorm Warning	CAE	Bamberg	26 min
Apr 11, 4:16 AM EDT	River Flood Warning	CAE	Edgefield, McCormick	16 hr

Nearby

Tornado Warnings in South Carolina, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.