Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 166, NWS Columbia, SC

June 18, 2011Edgefield County, McCormick County, South Carolina; Lincoln County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Jun 18, 2011, 7:11 PM EDT for Edgefield County, McCormick County, South Carolina; Lincoln County, Georgia. It was in force for 49 min. 1 report 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 18, 2011, 7:11 PM EDT (23:11 UTC)
Expired: Jun 18, 2011, 8:00 PM EDT
In force: 49 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Lincoln County, GA, Edgefield County, SC, McCormick County, SC

The radar

The Columbia radar (KCAE), 106 km from the middle of the area, began a volume at 23:12 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 18, 7:20 PM EDT	HAIL 1	6 Ne Lincolnton, GA	CAMPER AT ELIJAH CLARKE STATE PARK REPORTS QUARTER SIZED HAIL.

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 18, 4:08 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.2 hours before the alert went out and 214 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: 1149 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 704 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 33 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.

993 
WUUS52 KCAE 182311
SVRCAE
GAC181-SCC037-065-190000-
/O.NEW.KCAE.SV.W.0166.110618T2311Z-110619T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
711 PM EDT SAT JUN 18 2011

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN LINCOLN COUNTY IN EAST CENTRAL GEORGIA
  SOUTHERN EDGEFIELD COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHERN MCCORMICK COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 800 PM EDT

* AT 708 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 11 MILES WEST OF MCCORMICK
  TO 12 MILES SOUTH OF MCCORMICK...AND MOVING EAST AT 20 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE MCCORMICK AND LAKE 
  THURMOND

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.

LAT...LON 3395 8252 3396 8225 3371 8180 3356 8201
      3360 8214 3364 8220 3367 8220 3369 8222
      3369 8227 3385 8252
TIME...MOT...LOC 2310Z 288DEG 19KT 3388 8247 3374 8222

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 10:21 PM EDT	Special Weather Statement	CAE	Bamberg	24 min
Jun 18, 4:23 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Fairfield, Kershaw, Lancaster, Lee	67 min
Jun 18, 5:01 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lexington, Newberry, Richland, Saluda	59 min
Jun 18, 5:26 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Fairfield, Kershaw, Lancaster, Lee	34 min
Jun 18, 5:58 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	32 min
Jun 18, 5:59 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Calhoun, Clarendon, Edgefield, Fairfield, Kershaw and 6 more	61 min
Jun 18, 6:17 PM EDT	Special Weather Statement	CAE	McCormick	28 min
Jun 18, 6:18 PM EDT	Special Weather Statement	CAE	McCormick	27 min
Jun 18, 6:54 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	36 min
Jun 18, 7:58 PM EDT	Special Weather Statement	CAE	Lexington, Saluda	32 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.