Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 152, NWS Columbia, SC

June 15, 20118 counties in South Carolina; 4 counties in Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Jun 15, 2011, 8:36 PM EDT for 8 counties in South Carolina; 4 counties in Georgia. It was in force for 39 min. 6 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: Jun 15, 2011, 8:36 PM EDT (00:36 UTC)
Expired: Jun 15, 2011, 9:15 PM EDT
In force: 39 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Barnwell County, SC, Calhoun County, SC, Edgefield County, SC, Lexington County, SC, McCormick County, SC, Orangeburg County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 00:38 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
Jun 15, 8:52 PM EDT	TSTM WND DMG	Appling, GA	TREES DOWN.
Jun 15, 9:02 PM EDT	TSTM WND DMG	Edgefield, SC	TREES AND POWERLINES DOWN IN EDGEFIELD, JOHNSTON AND TRENTON AREAS.
Jun 15, 9:10 PM EDT	TSTM WND DMG	Thomson, GA	TREES AND POWERLINES DOWN COUNTYWIDE
Jun 15, 9:12 PM EDT	TSTM WND GST 67	6 Sse Augusta, GA	WIND GUST OF 58 KNOTS..OR 67 MPH...MEASURED AT AUGUSTA BUSH FIELD
Jun 15, 9:15 PM EDT	TSTM WND DMG	4 Nw Jackson, SC	SC HIGHWAY PATROL REPORTED A TREE IN ROADWAY AT SILVER BLUFF LANDING OFF OLD JACKSON ROAD.
Jun 15, 9:15 PM EDT	TSTM WND DMG	5 E Augusta, SC	TREE IN ROADWAY...MCMILLIAN ROAD AND SANDBAR FERRY ROAD

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
Jun 15, 7:35 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 0.6 hours before the alert went out and 187 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: 459 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 1117 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

533 
WUUS52 KCAE 160036
SVRCAE
GAC073-181-189-245-SCC003-011-017-037-063-065-075-081-160115-
/O.NEW.KCAE.SV.W.0152.110616T0036Z-110616T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
836 PM EDT WED JUN 15 2011

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RICHMOND COUNTY IN EAST CENTRAL GEORGIA
  MCDUFFIE COUNTY IN EAST CENTRAL GEORGIA
  SOUTHEASTERN LINCOLN COUNTY IN EAST CENTRAL GEORGIA
  COLUMBIA COUNTY IN EAST CENTRAL GEORGIA
  NORTHERN BARNWELL COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHERN EDGEFIELD COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHERN LEXINGTON COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHEASTERN MCCORMICK COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHERN SALUDA COUNTY IN CENTRAL SOUTH CAROLINA
  AIKEN COUNTY IN CENTRAL SOUTH CAROLINA
  NORTHWESTERN CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA
  NORTHWESTERN ORANGEBURG COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 915 PM EDT

* AT 835 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 6 MILES EAST OF RIDGE SPRING TO 14 MILES NORTH OF THOMSON...OR
  ALONG A LINE EXTENDING FROM BATESBURG TO 14 MILES NORTH OF
  THOMSON...AND MOVING EAST AT 25 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE SAVANNAH RIVER SITE...
  THOMSON...MARTINEZ...HEPHZIBAH...HARLEM...GROVETOWN...FORT
  GORDON...EVANS...AUGUSTA...WILLISTON...RIDGE SPRING...NORTH
  AUGUSTA...NEW ELLENTON...JOHNSTON...JACKSON...GASTON...EDGEFIELD...
  CLEARWATER...BELVEDERE...AIKEN AND GLOVERVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE...TOLL FREE 1 877 6 3
3...6 7 7 2.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
THURSDAY MORNING FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.

&&

LAT...LON 3364 8259 3364 8249 3368 8251 3390 8157
      3382 8087 3376 8078 3377 8071 3343 8120
      3344 8122 3317 8175 3322 8177 3321 8181
      3326 8188 3323 8198 3323 8210 3329 8216
      3326 8227 3332 8235 3335 8254 3360 8265
TIME...MOT...LOC 0036Z 269DEG 22KT 3386 8151 3366 8242

$$

SJN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 8:00 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick, Newberry, Saluda	45 min
Jun 15, 8:03 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster, Lexington, Newberry, Richland and 1 more	42 min
Jun 15, 8:46 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Chesterfield, Fairfield, Kershaw, Lancaster, Lee and 4 more	44 min
Jun 15, 8:49 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick, Saluda	26 min
Jun 15, 9:17 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Lexington, Orangeburg	43 min
Jun 15, 9:28 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Lee, Orangeburg, Richland, Sumter	62 min
Jun 15, 9:48 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell, Orangeburg	42 min
Jun 15, 10:27 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Calhoun, Clarendon, Orangeburg	48 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Severe Thunderstorm Warnings in Georgia, 2011 Every severe thunderstorm warning in 2011

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.