Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 598, NWS Greenville-Spartanburg, SC

August 12, 2011Anderson County, Oconee County, South Carolina; Franklin County, Hart County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 12, 2011, 8:38 PM EDT for Anderson County, Oconee County, South Carolina; Franklin County, Hart County, Georgia. It was in force for 67 min. 3 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: Aug 12, 2011, 8:38 PM EDT (00:38 UTC)
Expired: Aug 12, 2011, 9:45 PM EDT
In force: 67 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Franklin County, GA, Hart County, GA, Anderson County, SC, Oconee County, SC

The radar

The Greer radar (KGSP), 82 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
Aug 12, 8:50 PM EDT	TSTM WND DMG	2 N Fair Play, SC	MANY TREES DOWN IN THIS AREA...WORST ON WEST PINE GROVE ROAD...TREES AND POWERLINES DOWN ON RIVER BEND ROAD...TREES DOWN ON DAIRY FARM ROAD AND TREES DOWN ON SHORE DRIVE NEAR THE OCONEE AND ANDERSON COUNTY BORDER.
Aug 12, 8:55 PM EDT	TSTM WND DMG	Fair Play, SC	A FEW TREES DOWN IN THE FAIR PLAY AREA.
Aug 12, 9:00 PM EDT	TSTM WND DMG	3 S Sadlers Creek State, SC	* 7 INJ * COUNTY REPORTS CAMPER OVERTURNED BY WIND WITH MULTIPLE INJURIES TO PERSONS INSIDE. NUMEROUS TREES BLOWN DOWN ALONG CAMPERS WAY...HIGHWAY 29...AND GINN ROAD AT CRESCENT PARK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this severe thunderstorm warning; the first came 12 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.6 hours before the alert went out and 188 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: 1641 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1646 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 7 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.

511 
WUUS52 KGSP 130038
SVRGSP
GAC119-147-SCC007-073-130145-
/O.NEW.KGSP.SV.W.0598.110813T0038Z-110813T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
838 PM EDT FRI AUG 12 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN FRANKLIN COUNTY IN NORTHEAST GEORGIA...
  NORTHERN HART COUNTY IN NORTHEAST GEORGIA...
  WEST CENTRAL ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHEASTERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 945 PM EDT

* AT 834 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 2 MILES
  WEST OF TOWNVILLE...OR 11 MILES SOUTHWEST OF CLEMSON...MOVING SOUTH
  AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FAIR PLAY...
  REED CREEK...SADLERS CREEK STATE PARK AND WHITWORTH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM PASSES.

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR
AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER...
1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3437 8304 3442 8318 3451 8315 3454 8311
      3456 8312 3467 8308 3467 8285 3464 8283
      3465 8280 3435 8282
TIME...MOT...LOC 0038Z 000DEG 4KT 3456 8294

$$
ARK

1 follow-up statement

019 
WWUS52 KGSP 130138
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
938 PM EDT FRI AUG 12 2011

GAC119-147-SCC007-073-130147-
/O.EXP.KGSP.SV.W.0598.000000T0000Z-110813T0145Z/
FRANKLIN GA-HART GA-ANDERSON SC-OCONEE SC-
938 PM EDT FRI AUG 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OCONEE...WEST
CENTRAL ANDERSON...NORTHERN HART AND NORTHEASTERN FRANKLIN COUNTIES
WILL EXPIRE AT 945 PM EDT...

THE STORM THAT HAD PROMPTED THE WARNING HAS MOVED SOUTH OF THE 
WARNED AREA INTO CENTRAL HART COUNTY. ANOTHER SEVERE THUNDERSTORM 
WARNING IS IN EFFECT FOR THAT AREA.
LAT...LON 3437 8304 3442 8318 3451 8315 3454 8311
      3456 8312 3467 8308 3467 8285 3464 8283
      3465 8280 3435 8282
TIME...MOT...LOC 0137Z 000DEG 4KT 3449 8294

$$

ARK

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 12, 7:57 PM EDT, 41 minutes earlier.

Area forecast discussion, Aug 12, 7:57 PM EDT, 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
757 PM EDT FRI AUG 12 2011

.SYNOPSIS...
HIGH PRESSURE WILL MOVE OFF THE EAST COAST BY SATURDAY. A COLD FRONT
WILL THEN APPROACH THE AREA FROM THE NORTHWEST AND MOVE ACROSS THE
CAROLINAS EARLY SUNDAY. HIGH PRESSURE WILL BUILD IN FROM THE NORTH
EARLY NEXT WEEK.

&&

.NEAR TERM /THROUGH SATURDAY/...
CONVECTIVE COVERAGE HAS REGENERATED CLOSER TO THE BLUE RIDGE IN
UPSLOPE AREAS EARLY THIS EVENING...AND SPILLED OUT INTO THE ADJACENT
PIEDMONT. WITH DIFFLUENT FLOW ALOFT...THE THUNDERSTORMS ARE MOVING
VERY LITTLE AND AN ISOLATED EXCESSIVE RAINFALL THREAT WILL ACCOMPANY
THE SEVERE WIND THREAT FOR THE NEXT COUPLE OF HOURS NEAR THE
INTERSTATE 85 CORRIDOR IN UPSTATE SC. OTHERWISE...A FEW SHOWERS AND
THUNDERSTORMS WILL REDEVELOP OVER WRN NC IN THE EASTERLY FLOW
THROUGH THE MOIST LAYER...BUT WITH ONLY ISOLD COVERAGE EXPECTED
OVERNIGHT. FOG MAY BE A BIT MORE WIDESPREAD THAN LAST NIGHT...WITH
LOCALLY DENSE RESTRICTIONS IN THE MTN VALLEYS AND IN AREAS THAT
RECEIVE HEAVY RAINFALL. MIN TEMPS APPEAR ON TRACK.

SATURDAY...EXPECT SHOWERS TO START EARLY AGAIN AS THE CONTINUED SELY
FLOW ACTS ON LINGERING LOW LEVEL MOISTURE. OVERALL CONVECTION COULD
BE MORE WIDESPREAD AS SOME ADDITIONAL UPPER LEVEL ENERGY MOVES IN.
HAVE KEPT POP LIMITED TO SOLID CHC FOR NOW. HIGHS SHOULD BE JUST ON
THE LOW SIDE OF NORMAL.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/...
AT 2 PM EDT FRIDAY...AN UPPER TROUGH WILL AMPLIFY ALONG THE EASTERN
SEABOARD FROM SATURDAY NIGHT THROUGH SUNDAY NIGHT...THEN WILL
DEAMPLIFY SLIGHTLY ON MONDAY. A COLD FRONT WILL CROSS OUR AREA FROM
THE NORTHWEST LATE SATURDAY NIGHT AND EARLY SUNDAY...ACCOMPANIED BY
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS. MODERATE
INSTABILITY AND SHEAR WILL ACCOMPANY THE FRONTAL PASSAGE. THE SLOW
MOVING NATURE OF THE BOUNDARY...COMBINED WITH A WEAK PRECEDING
SOUTHERLY UPSLOPE FLOW...WILL FAVOR RAINFALL AMOUNTS IN EXCESS OF
ONE INCH...AND PERHAPS TWO INCHES IN THE MOUNTAINS. AS WINDS VEER TO
THE NORTHWEST...UPSLOPE FLOW SHOWERS WILL SET UP IN THE NC MOUNTAINS
BORDERING TN LATE SUNDAY INTO SUNDAY NIGHT...ENDING MONDAY AS DRY
HIGH PRESSURE BUILDS EAST INTO THE MOUNTAINS. TEMPERATURES WILL RUN
NEAR NORMAL SATURDAY NIGHT...THEN BELOW NORMAL FORM SUNDAY THROUGH
MONDAY.

&&

.LONG TERM /TUESDAY THROUGH FRIDAY/...
AT 2 PM EDT FRIDAY...AN UPPER TROUGH WILL BE ALONG THE EAST COAST ON
MONDAY NIGHT AND TUESDAY. HEIGHTS RISE TEMPORARILY ON WEDNESDAY
BETWEEN SHORTWAVES MOVING THROUGH THE MEAN TROUGH...THEN FALL LATE
IN THE WEEK AS A CLOSED UPPER LOW MOVES ACROSS SOUTHERN
CANADA...CAUSING THE TROUGH AXIS TO RETROGRADE INTO THE
APPALACHIANS. A SLOW MOVING COLD FRONT WILL BE NEAR THE COAST ON
TUESDAY...WHILE RELATIVELY COOL AND DRY HIGH PRESSURE BUILDS EAST
ACROSS THE MOUNTAINS. THIS HIGH CROSSES THE MOUNTAINS ON
WEDNESDAY...THEN REMAINS ALONG THE EAST COAST THROUGH FRIDAY.
PRECIPITATION WILL BE QUITE LIMITED IN THIS HIGH PRESSURE...AND
MAINLY CONFINED TO THE BLUE RIDGE ESCARPMENT DIFFERENTIAL HEATING
AND LIGHT UPSLOPE FLOW COME INTO PLAY. TEMPERATURES WILL BE CLOSE TO
LATE SUMMER OR EARLY AUTUMN NORMAL.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
AT KCLT...AFTERNOON CONVECTION IN THE VICINITY HAS DISSIPATED...BUT
MOIST SE FLOW COULD ALLOW ISOLD TO SCATTERED SHOWER TO REDEVELOP
ACROSS THE NC PIEDMONT OVERNIGHT. WILL LEAVE KCLT PRECIPITATION FREE
FOR THE 00Z ISSUANCE...BUT THIS WILL NEED TO BE MONITORED. THERE IS
DEVELOPING CONSENSUS ON A LOWER STRATUS DECK FORMING
OVERNIGHT...WITH MVFR CIGS THE BEST FORECAST AT PRESENT AFT 09Z.
BRIEF IFR WILL BE POSSIBLE TOWARD DAYBREAK...BUT CONFIDENCE IS TOO
LOW TO FORECAST THAT. EXPECT SE WINDS TO BECOME LIGHT AND VARIABLE
OVERNIGHT AND THEN STEADY SE AGAIN THROUGH SAT. CB CLOUDS WITH VFR
CIGS WILL BE FEATURED THROUGH SAT AFTN.

ELSEWHERE...A DIFFLUENT FLOW PATTERN ALOFT IS ALLOWING CELLS TO
BACKBUILD OR MOVE SLOWLY JUST EAST OF THE MTNS. TSRA WILL BE CARRIED
AT KGSP AND KGMU AND IFR CONDITIONS MIGHT BE NEEDED IF THE HEAVIEST
CORES THREATEN THE AIRFIELD. TSRA MAY SPREAD TOWARD KAND AFTER 02Z.
CONVECTION SHOULD BE ISOLD TO SCT ENOUGH TO NOT MENTION AT KAVL TO
KHKY...BUT SHOWERS MAY DEVELOP NEARBY OVERNIGHT IN EASTERLY FLOW.
EXPECT A STRATUS DECK TO DEVELOP AT MVFR LEVELS BY 08Z...WITH IFR
POSSIBLE AT TIMES THROUGHOUT TOWARD DAYBREAK. IFR WILL BE MOST
LIKELY AT KAVL AND KHKY. EXPECT LIGHT SE FLOW THROUGH THE
PERIOD...WITH CB CLOUDS DURING THE AFTN HOURS.

OUTLOOK...TSTM CHANCES INCREASE SAT NIGHT THROUGH SUNDAY AS A COLD
FRONT MOVES THROUGH. EXPECT DRIER WEATHER MONDAY THROUGH WEDNESDAY.

AN EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLE SHOWING THE
PERCENTAGE OF GUIDANCE MEMBERS AGREEING WITH THE SCHEDULED ISSUANCE
CATEGORY IS AVAILABLE AT FOLLOWING LINK (USE LOWER CASE)...

WWW.WEATHER.GOV/GSP/AVIATION/TABLES.HTM

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...TJB
NEAR TERM...HG
SHORT TERM...JAT
LONG TERM...JAT
AVIATION...HG

Hazardous weather outlook, Aug 12, 11:06 AM EDT, 9 hours 32 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1106 AM EDT FRI AUG 12 2011

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-131515-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-
ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-
MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-
GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
1106 AM EDT FRI AUG 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS
AFTERNOON AND CONTINUE INTO THE EVENING. SOME OF THESE STORMS
COULD BECOME SEVERE...CAPABLE OF PRODUCING LOCALLY DAMAGING WIND
GUSTS. ISOLATED AREAS OF HEAVY RAINFALL COULD ALSO DEVELOP...
ESPECIALLY IN LOCATIONS WHERE MULTIPLE STORMS MOVE THROUGH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

A COLD FRONT WILL MOVE ACROSS THE AREA LATER THIS WEEKEND.
SCATTERED TO NUMEROUS THUNDERSTORMS IN ADVANCE OF THIS FRONT ARE
EXPECTED SATURDAY AFTERNOON THROUGH SUNDAY. SOME OF THESE
THUNDERSTORMS COULD BECOME SEVERE AND PRODUCE DAMAGING
WINDS...LARGE HAIL...AND HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, Aug 12, 7:24 PM EDT, 1 hour 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
724 PM EDT FRI AUG 12 2011

SCZ005-006-010-130015-
ANDERSON-GREATER GREENVILLE-GREATER PICKENS-
724 PM EDT FRI AUG 12 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL GREENVILLE...EASTERN
PICKENS AND NORTHERN ANDERSON COUNTIES THROUGH 815 PM EDT...

AT 722 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF EASLEY...OR 5 MILES EAST OF
PICKENS...MOVING SOUTHEAST AT 5 MPH.

THIS STORM WILL BE NEAR...
  LIBERTY...
  EASLEY...
  POWDERSVILLE...

DIME SIZE HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3464 8265 3488 8275 3489 8274 3496 8258
      3496 8255 3475 8238

ARK

Special weather statement, Aug 12, 7:39 PM EDT, 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
739 PM EDT FRI AUG 12 2011

SCZ002-003-006-007-130030-
GREATER GREENVILLE-GREENVILLE MOUNTAINS-PICKENS
MOUNTAINS-SPARTANBURG-
739 PM EDT FRI AUG 12 2011

...STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN PICKENS...NORTHERN
GREENVILLE AND WESTERN SPARTANBURG COUNTIES THROUGH 830 PM EDT...

AT 735 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES SOUTH OF
GOWENSVILLE TO MARIETTA...MOVING SOUTHEAST AT 5 MPH.

THESE STORMS WILL BE NEAR...
  LAKE ROBINSON...
  TRAVELERS REST...
  FURMAN UNIVERSITY...

SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THESE
STORMS.

LAT...LON 3488 8244 3493 8252 3497 8253 3496 8257
      3504 8269 3513 8222 3498 8197

ARK

Local storm report, Aug 12, 7:42 PM EDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
742 PM EDT FRI AUG 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0732 PM     TSTM WND DMG     2 WSW EASLEY            34.81N 82.62W
08/12/2011                   PICKENS            SC   TRAINED SPOTTER

            TREES AND LARGE LIMBS DOWN ALONG SMITH GROVE ROAD. POWER
            IS ALSO REPORTED TO BE OUT FOR PARTS OF THIS AREA NEAR
            EASLEY.

&&

OUTLAW

Local storm report, Aug 12, 8:11 PM EDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
811 PM EDT FRI AUG 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0740 PM     HAIL             EASLEY                  34.82N 82.59W
08/12/2011  E0.88 INCH       PICKENS            SC   PUBLIC

            DIME HAIL ALONG PENDLETON HIGHWAY NEAR HIGHWAY 135.

&&

HG

Special weather statement, Aug 12, 8:15 PM EDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
815 PM EDT FRI AUG 12 2011

NCZ065-509-510-SCZ003-130100-
EASTERN POLK-GREENVILLE MOUNTAINS-HENDERSON-POLK MOUNTAINS-
815 PM EDT FRI AUG 12 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN GREENVILLE...SOUTHERN
HENDERSON AND SOUTHWESTERN POLK COUNTIES THROUGH 900 PM EDT...

AT 813 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF NORTH SALUDA RESERVOIR...OR
9 MILES SOUTH OF HENDERSONVILLE...MOVING SOUTHEAST AT 15 MPH.

THIS STORM WILL BE NEAR...
  NORTH SALUDA RESERVOIR...
  COLUMBUS...
  TRYON...
  MARIETTA...
  TIGERVILLE...

WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK
HIGHER GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3523 8214 3519 8216 3519 8221 3507 8222
      3506 8223 3501 8241 3501 8254 3502 8256
      3520 8257 3532 8240

ARK

Special weather statement, Aug 12, 8:20 PM EDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
820 PM EDT FRI AUG 12 2011

GAZ018-SCZ001-004-005-010-130100-
ANDERSON-GREATER OCONEE-GREATER PICKENS-OCONEE MOUNTAINS-STEPHENS-
820 PM EDT FRI AUG 12 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN STEPHENS...SOUTHERN
OCONEE...SOUTHWESTERN PICKENS AND WESTERN ANDERSON COUNTIES THROUGH
900 PM EDT...

AT 817 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHWEST OF WESTMINSTER...OR 10 MILES
SOUTH OF WALHALLA...MOVING EAST AT 10 MPH.

THIS STORM WILL BE NEAR...
  WESTMINSTER...
  FAIR PLAY...
  SENECA...

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK
HIGHER GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3450 8307 3453 8309 3453 8311 3451 8314
      3453 8331 3473 8323 3473 8280 3447 8280

ARK

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 12, 8:11 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	64 min
Aug 12, 9:09 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	66 min
Aug 13, 2:25 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	65 min
Aug 13, 2:35 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	55 min
Aug 13, 3:04 PM EDT	Special Weather Statement	GSP	Pickens	41 min
Aug 13, 3:23 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	67 min
Aug 13, 4:14 PM EDT	Special Weather Statement	GSP	Greenville	46 min
Aug 13, 4:16 PM EDT	Special Weather Statement	GSP	Anderson	44 min
Aug 13, 4:45 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	60 min
Aug 13, 4:53 PM EDT	Special Weather Statement	GSP	Union	52 min
Aug 13, 4:59 PM EDT	Severe Thunderstorm Warning	GSP	Chester, Union	61 min
Aug 13, 5:11 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood, Laurens	64 min
Aug 13, 5:21 PM EDT	Special Weather Statement	GSP	Cherokee, Spartanburg	39 min
Aug 13, 5:36 PM EDT	Special Weather Statement	GSP	Abbeville	39 min
Aug 13, 5:40 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, York	65 min
Aug 13, 5:46 PM EDT	Special Weather Statement	GSP	Union	44 min
Aug 13, 5:47 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, York	58 min
Aug 13, 6:09 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Union, York	66 min
Aug 13, 6:18 PM EDT	Severe Thunderstorm Warning	GSP	York	57 min
Aug 13, 7:22 PM EDT	Severe Thunderstorm Warning	GSP	York	32 min
Aug 13, 7:25 PM EDT	Special Weather Statement	GSP	Chester	50 min
Aug 12, 8:20 PM EDT	Special Weather Statement	GSP	Stephens	40 min
Aug 12, 10:13 PM EDT	Special Weather Statement	GSP	Elbert	47 min
Aug 12, 10:57 PM EDT	Special Weather Statement	GSP	Elbert	48 min
Aug 13, 2:08 PM EDT	Special Weather Statement	GSP	Rabun	52 min
Aug 13, 5:41 PM EDT	Special Weather Statement	GSP	Franklin	49 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.