Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 179, NWS Greenville-Spartanburg, SC

May 17, 2012Abbeville County, Greenwood County, Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 17, 2012, 2:13 PM EDT for Abbeville County, Greenwood County, Laurens County, South Carolina. It was in force for 61 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
May 17, 2012, 2:13 PM EDT (18:13 UTC)
Expired
May 17, 2012, 3:14 PM EDT
In force
61 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Abbeville County, SC, Greenwood County, SC, Laurens County, SC

The radar

The Greer radar (KGSP), 63 km from the middle of the area, began a volume at 18:16 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

TimeReportWhereRemark
May 17, 2:35 PM EDTTSTM WND DMGGreenwood, SCTREES AND POWERLINES DOWN AT THE INTERSECTION OF HIGH STREET AND WEST CAMBRIDGE AVENUE JUST WEST OF DOWNTOWN GREENWOOD.

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 one storm report to this severe thunderstorm warning; the first came 22 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

Charleston AFB, SC (KCHS), launched 12:00Z, 6.2 hours before the alert went out and 248 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-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2012-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1254 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2012-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1254 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
592 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
1 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.

735 
WUUS52 KGSP 171813
SVRGSP
SCC001-047-059-171930-
/O.NEW.KGSP.SV.W.0179.120517T1813Z-120517T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
213 PM EDT THU MAY 17 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ABBEVILLE COUNTY IN UPSTATE SOUTH CAROLINA...
  GREENWOOD COUNTY IN UPSTATE SOUTH CAROLINA...
  LAURENS COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 330 PM EDT

* AT 212 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
  LOCATED NEAR CLINTON...OR 6 MILES SOUTHEAST OF LAURENS...AND MOVING
  SOUTHWEST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  LAURENS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL CAN CAUSE MAJOR PROPERTY DAMAGE...ESPECIALLY TO VEHICLES.
DAMAGING WINDS MAY BLOW DOWN SCATTERED TREES AND POWER LINES. SEEK
SHELTER INSIDE AN INTERIOR ROOM.

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

&&

LAT...LON 3439 8246 3452 8226 3456 8222 3468 8205
      3446 8176 3430 8187 3430 8189 3428 8189
      3420 8195 3419 8192 3413 8188 3397 8201
TIME...MOT...LOC 1813Z 067DEG 3KT 3445 8194

$$

NED
3 follow-up statements
537 
WWUS52 KGSP 171834
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
234 PM EDT THU MAY 17 2012

SCC001-047-059-171930-
/O.CON.KGSP.SV.W.0179.000000T0000Z-120517T1930Z/
ABBEVILLE SC-GREENWOOD SC-LAURENS SC-
234 PM EDT THU MAY 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR LAURENS...
GREENWOOD AND NORTHEASTERN ABBEVILLE COUNTIES UNTIL 330 PM EDT...

AT 233 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 NEAR LAKE
GREENWOOD...OR 8 MILES NORTHEAST OF GREENWOOD...MOVING SOUTHWEST AT
25 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  GREENWOOD AND COKESBURY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS ARE CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.

LAKE GREENWOOD IS IN THE PATH OF THIS SEVERE THUNDERSTORM. BOATERS 
SHOULD SEEK IMMEDIATE SHELTER ONSHORE.

THIS SEVERE THUNDERSTORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL.
FLOODING OF DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. DO NOT
DRIVE THROUGH AREAS WHERE WATER IS FLOWING OVER THE ROAD.

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

&&

LAT...LON 3439 8246 3450 8229 3468 8205 3452 8183
      3434 8185 3431 8186 3430 8189 3427 8190
      3420 8195 3419 8192 3413 8188 3397 8201
TIME...MOT...LOC 1834Z 064DEG 20KT 3428 8208

$$

NED
758 
WWUS52 KGSP 171903
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
303 PM EDT THU MAY 17 2012

SCC001-047-059-171930-
/O.CON.KGSP.SV.W.0179.000000T0000Z-120517T1930Z/
ABBEVILLE SC-GREENWOOD SC-LAURENS SC-
303 PM EDT THU MAY 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
LAURENS...GREENWOOD AND NORTHEASTERN ABBEVILLE COUNTIES UNTIL 330 PM
EDT...

AT 302 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 NEAR GRAY
COURT...OR NEAR LAURENS...MOVING SOUTHWEST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  GRAY COURT.
  HICKORY TAVERN AND BOYD MILL POND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS ARE CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.

THIS SEVERE THUNDERSTORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL.
FLOODING OF DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. DO NOT
DRIVE THROUGH AREAS WHERE WATER IS FLOWING OVER THE ROAD.

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

&&

LAT...LON 3439 8246 3452 8226 3468 8205 3457 8191
      3418 8204 3408 8192 3397 8201
TIME...MOT...LOC 1903Z 061DEG 11KT 3456 8206

$$

NED
707 
WWUS52 KGSP 171914
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
314 PM EDT THU MAY 17 2012

SCC001-047-059-171925-
/O.CAN.KGSP.SV.W.0179.000000T0000Z-120517T1930Z/
ABBEVILLE SC-GREENWOOD SC-LAURENS SC-
314 PM EDT THU MAY 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LAURENS...GREENWOOD
AND NORTHEASTERN ABBEVILLE COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS AREA.

LAT...LON 3439 8246 3452 8226 3468 8205 3457 8191
      3418 8204 3408 8192 3397 8201
TIME...MOT...LOC 1915Z 061DEG 11KT 3454 8210

$$

NED

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 May 17, 1:57 PM EDT, 16 minutes earlier.

Area forecast discussion, May 17, 1:57 PM EDT, 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
157 PM EDT THU MAY 17 2012

.SYNOPSIS...
AN UPPER LEVEL TROF OF LOW PRESSURE WILL MOVE EAST ACROSS THE AREA
THROUGH EARLY FRIDAY. STRONG HIGH PRESSURE WILL THEN BUILD IN FROM
THE NORTH AND REMAIN THROUGH MONDAY. A COLD FRONT WILL APPROACH THE
AREA FROM THE WEST ON TUESDAY.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 1105 AM...MESOSCALE MODELS AND AN IMPROVED SATELLITE
PRESENTATION INDICATE THAT THE UPPER LOW DOWN ACROSS THE MIDLANDS
AND NE GA HAS BECOME A LITTLE STRONGER THIS MORNING. THE NAM HAS A
GOOD UPPER DIVERGENCE MAX DOWN ACROSS THE MIDLANDS THIS AFTN. THE
NAM ALSO HAS SB-CAPE VALUES BETWEEN 1000-2000 J/KG OVER A GOOD BIT
OF THE FA THIS AFTN. THEREFORE...I/VE RAISED POPS INTO THE CHANCE
CATEGORY ACROSS MOST OF THE MTNS AND FOOTHILLS WHERE INCREASING ESE
UPSLOPE FLOW WILL POOL MOISTURE AND PROVIDE SUFFICIENT ASCENT FOR
CONVECTION. POPS HAVE ALSO BEEN RAISED INTO THE CHANCE RANGE ACROSS
THE SE TIER OF COUNTIES WHERE THE BACK EDGE OF DEFORMATION ZONE
ENHANCED PCPN WILL DEVELOP THIS AFTN. POPS HAVE ALSO BEEN INCREASED
WELL INTO THE LATE EVENING HOURS...TO MATCH A PERIOD OF INCREASED
CONVECTIVE COVERAGE SEEN ACROSS THE BLUE RIDGE ON THE NAM AND THE
HRRR.

AS OF 0650 AM...ENOUGH MOISTURE AND LOW LVL CONVERGENCE REMAIN OVER
THE FAR S CWA TO MAINTAIN SLIGHT CHC POPS FOR A COUPLE MORE HOURS
AND CURRENT GRIDDED FIELDS HAVE THIS COVERED. MAINLY TWEAKED HOURLY
TEMP/DP/RH WITH LATEST TRENDS FOR THIS UPDATE.

WEAK UPPER TROF WILL MOVE OVER THE AREA THIS MRNG WITH A CLOSED
UPPER LOW DEVELOPING OVER THE MIDLANDS THIS AFTN-TONIGHT. LOOKS LIKE
THIS SHOULD STILL PUT THE CWA UNDER WEAK NVA ALOFT. AT THE SAME TIME
A WEAK COLD FRONT WILL BEGIN TO PUSH IN FROM THE NE. IT STILL
APPEARS THAT MAINLY THE MTNS AND ADJACENT FOOTHILLS WILL SEE LLVL
MOISTURE POOLING...WITH A SLIGHT CHC OF SHWRS/TSTMS THIS AFTN...BUT
NEWER NAM RUN INDICATES SOME MOISTURE WRAPPING AROUND THE 850MB LOW
SO ISOLD CONVECTION COULD FAN OUT ACROSS THE PIEDMONT AS WELL...
MAINLY OUR W AND S SECTIONS. TEMPS WILL WARM TO ABOVE AVG BY MID
DAY. THE UPPER LOW WILL TRACK SLOWLY E TOWARD THE COAST TONIGHT. THE
NAM CONTINUES TO WRAP MOISTURE AROUND THE LOW LVL CIRCULATION WHILE
THE GFS KEEPS AREA DRY. DECIDED TO LEAN TOWARD THE DRYER GFS WHICH
IS SUPPORTED BY THE ECMWF. MRNG LOWS WILL BE SLIGHTLY ABOVE AVG.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
AS OF 320 AM THURSDAY...AN INTERESTING PATTERN IS SHAPING UP FOR THE
SHORT RANGE. THE PERSISTENT AND BROAD UPPER TROF WILL LINGER OVER
THE SE/RN CONUS WHILE A FAIRLY STRONG RIDGE BUILDS AND MOVES EAST
ATOP THE TROF ACROSS THE HIGHER LATITUDES. THE TROF AXIS WILL
GENERALLY MOVE SLOWLY EAST AND PROBABLY EVOLVE INTO A WEAK BUT
NOTICEABLE CUTOFF LOW. THE TROF IS THEN EXPECTED TO RETROGRADE BY
LATE SUN. FOR THE SENSIBLE CWFA WX HOWEVER...THE LLVL WINDS WILL
REMAIN NE/LY TO E/LY AS THE UPPER RIDGE DOMINATES AND WEDGES A 1024
MB HIGH DOWN THE EAST COAST. THIS WILL MAINTAIN A RATHER STABLE AND
DRY ATMOS OUTSIDE THE HIGHER TERRAIN BOTH FRI AND SAT. BUFR
SOUNDINGS SHOW VERY WEAK  SFC/BASED INSTABILITY ASSOCIATED WITH THE
MOISTURE FLUX ACROSS THE NC MTNS. THE H85 FLOW BRINGS IN MODEST
AMOUNTS OF ATL MOISTURE TO THE MTNS BY FRI AFTERNOON AND THIS SHOULD
BE ENOUGH TO DEVELOP ISOL/SCT -SHRA/TSTMS FRI AFTERNOON AND MOST
LIKELY LESS COVERAGE AND SAT AFTERNOON. THE MTN TSTMS THAT MAY
DEVELOP WILL BE DIURNALLY DRIVEN AND RELATIVELY WEAK PULSE TYPE. A
GOOD INSOLATION ENVIRONMENT IS EXPECTED BOTH DAYS...SO MAX TEMPS
SHOULD REACH A CAT OR SO ABOVE NORMAL EACH AFTERNOON. GOOD
RADIATIONAL COOL CONDS ARE EXPECTED TOO...SO MINS SHOULD HAVE NO
PROBLEM DROPPING TO NEAR NORMAL...IF NOT A COUPLE DEGREES F BELOW
NORMAL.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
AS OF 330 AM THURSDAY...NO CHANGES WERE NEEDED TO THE EXT RANGE. THE
UPPER PATTERN HAS THE DOMINANT NRN RIDGE KEEPING THINGS MAINLY DRY
THROUGH SUN WITH AN ADVANCING MOISTURE SUPPLY FROM THE EAST EARLY
MON AS THE UPPER LOW RETROGRADES. THIS LOW IS THEN EXPECTED TO BE
ABSORBED BY THE WESTERLIES...BEFORE ANOTHER L/W TROF MOVES TOWARD
THE MS VALLEY MON NIGHT AND THUS MAINTAINS A MEAN AND BROAD UPPER
LEVEL TROF OVER THE SE CONUS THROUGH THE PERIOD. A COLD FRONT AHEAD
OF THE INCOMING TROF WILL SLOW DOWN AND BECOME STATIONARY MOST LIKELY
JUST SOUTH OF THE CWFA LATE TUE. WITH ABOVE NORMAL TEMPS AND FAIRLY
HIGH TD/S EXPECTED THIS FRONT WILL INSTIGATE A DECENT CHANCE
SHRA/TSTMS MON THROUGH WED. THE GOING GRIDS HAVE THIS SCENARIO WELL
IN HAND WITH THE CHANCE POPS AND WARM TEMPS.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
AT KCLT...STRONG THUNDERSTORMS WILL CONTINUE TO FIRE ABOUT 15 MILES
SOUTH OF THE AIRFIELD...THEN DRIFT SOUTH FROM THERE...OVER THE NEXT
COUPLE HOURS. HOWEVER...THE AIRMASS WILL BECOME MORE UNSTABLE BY
LATE AFTN. MOST OF THE SHORT RANGE MODELS WANT TO DEVELOP TSTMS
AROUND THE AIRFIELD STARTING IN A COUPLE HOURS AND THE NNE TO SSW
ORIENTED BANDS OF CU ACROSS THE REGION WILL LIKELY START TO DEEPEN
INTO CB/S WITH TIME. I/VE HELD ON TO VCSH TO ACCOUNT FOR THIS...BUT
A PERIOD OF TEMPO TSRA WILL PROBABLY NEED TO BE ADDED ONCE
DEVELOPMENT STARTS TO OCCUR FARTHER NORTH.

WINDS WILL REMAIN OUT OF THE NE THIS AFTN...THOUGH OUTFLOW BNDRYS
MAY PLAY HAVOC WITH THE WINDS AT TIMES. MVFR CIGS ARE EXPECTED AFTER
MIDNIGHT AS A BACK DOOR COLD FRONT SURGES THROUGH THE REGION. THE
CIGS ARE EXPECTED TO CLEAR OUT BEFORE SUNRISE HOWEVER.

ELSEWHERE...MUCH LIKE AT KCLT...THE ATMOSPHERE WILL BECOME MORE
UNSTABLE OVER THE UPSTATE...AND TSTMS WILL LIKELY BEGIN TO DEVELOP
ON OUTFLOW BNDRYS FROM STORMS EAST OF THE REGION NOW. THIS PROCESS
WILL TAKE A COUPLE HOURS. VCHS IS IN THE TAFS NOW...BUT A PERIOD OF
TEMPO GROUPS IS A GOOD BET ONCE THE NEW CELLS BEGIN TO FIRE.
CONFIDENCE IN TIMING JUST ISN/T HIGH ENUF TO TEMPO YET. KAVL IS MORE
STABLE...BUT SHRA MAY CONTINUE THERE FOR A GOOD BIT OF THE NIGHT.

WINDS OVER THE UPSTATE WILL GENERALLY BE OUT OF THE EAST THE REST OF
THE AFTN...TURNING NE LATE TONIGHT AS A BACK DOOR FRONT SURGES
THROUGH. A PERIOD OF MVFR CIGS IS EXPECTED TO ACCOMPANY THE FRONT.

OUTLOOK...EXPECT ISOLD LATE DAY SHOWERS AND TSTMS IN THE MTNS FRI
AFTN....THEN DRYING OVER THE WEEKEND. MRNG FOG WILL BE PSBL...ESP
MTN VALLEYS AND NEAR LAKES/RIVERS.

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...SBK
NEAR TERM...MCAVOY
SHORT TERM...SBK
LONG TERM...SBK
AVIATION...MCAVOY
Hazardous weather outlook, May 17, 12:30 PM EDT, 1 hour 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1230 PM EDT THU MAY 17 2012

GAZ010-017-NCZ033-035>037-048>053-056>059-062>065-068-069-501>510-
SCZ001>003-181630-
RABUN-HABERSHAM-AVERY-ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-
MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-ROWAN-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
CLEVELAND-LINCOLN-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-
1230 PM EDT THU MAY 17 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND
LAST WELL INTO THE EVENING HOURS...ESPECIALLY ACROSS THE MOUNTAINS
AND THE ADJACENT FOOTHILL LOCATIONS. THE STRONGER STORMS WILL
PRODUCE SMALL HAIL AND GUSTY WINDS...ALONG WITH FREQUENT CLOUD TO
GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ018-026-028-029-NCZ070>072-082-SCZ004>014-019-181630-
STEPHENS-FRANKLIN-HART-ELBERT-GASTON-MECKLENBURG-CABARRUS-UNION NC-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
1230 PM EDT THU MAY 17 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE PIEDMONT OF THE
WESTERN CAROLINAS AND NORTHEAST GEORGIA THIS AFTERNOON...LASTING
INTO THE EVENING HOURS. ALONG AND SOUTH OF INTERSTATE 85 THERE
WILL BE SUFFICIENT INSTABILITY FOR SOME OF THE STORMS TO REACH
SEVERE LIMITS...PRODUCING LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

MCAVOY

In the hours before

Local storm report, May 17, 10:20 AM EDT, 3 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1020 AM EDT THU MAY 17 2012

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

1150 PM     HAIL             ROEBUCK                 34.88N 81.96W
05/16/2012  E0.75 INCH       SPARTANBURG        SC   PUBLIC

            DIME SIZE HAIL AND SMALL BRANCHES BLOWN DOWN.

&&

MCAVOY
Local storm report, May 17, 11:11 AM EDT, 3 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1111 AM EDT THU MAY 17 2012

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

1208 AM     HAIL             2 SE ROEBUCK            34.85N 81.93W
05/17/2012  E1.00 INCH       SPARTANBURG        SC   PUBLIC

            QUARTER SIZED HAIL ON TEMPLETON DRIVE. TIME ESTIMATED BY
            RADAR.

1208 AM     TSTM WND DMG     2 SE ROEBUCK            34.86N 81.94W
05/17/2012                   SPARTANBURG        SC   PUBLIC

            SEVERAL TREES DOWN ON TEMPLETON DRIVE. TIME ESTIMATED BY
            RADAR.

&&

OUTLAW
Local storm report, May 17, 12:36 PM EDT, 1 hour 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1236 PM EDT THU MAY 17 2012

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

0212 AM     HAIL             2 N CALLISON            34.05N 82.13W
05/17/2012  E0.50 INCH       GREENWOOD          SC   PUBLIC

            HAIL PEA TO MARBLE SIZED PARTIALLY COVERED THE GROUND
            NEAR NORTH END OF REEDY CREEK ROAD. VERY LITTLE WIND.

&&

OUTLAW
Special weather statement, May 17, 1:14 PM EDT, 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
114 PM EDT THU MAY 17 2012

SCZ012-171745-
LAURENS-
114 PM EDT THU MAY 17 2012

...A STRONG THUNDERSTORM WILL AFFECT LAURENS COUNTY THROUGH 145 PM
EDT...

AT 113 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES EAST OF BOYD MILL POND...OR 5 MILES
SOUTHWEST OF LAURENS...MOVING SOUTHWEST AT 10 MPH.

THIS STORM WILL BE NEAR...
  HICKORY TAVERN...
  BOYD MILL POND...

PEOPLE IN LAURENS COUNTY...INCLUDING THE FOLLOWING LOCATION...

BOYD MILL POND...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

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

LAT...LON 3428 8205 3428 8206 3430 8209 3430 8210
      3447 8231 3465 8203 3446 8176 3427 8205

NED
Special weather statement, May 17, 1:15 PM EDT, 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
115 PM EDT THU MAY 17 2012

SCZ014-171745-
CHESTER-
115 PM EDT THU MAY 17 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CHESTER COUNTY
THROUGH 145 PM EDT...

AT 113 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES SOUTHWEST OF LOWRYS...OR 5 MILES
NORTHWEST OF CHESTER...MOVING SOUTHWEST AT 10 MPH.

PEOPLE IN NORTHWESTERN CHESTER COUNTY...INCLUDING THE FOLLOWING
LOCATION...

LOWRYS...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

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

LAT...LON 3468 8145 3470 8146 3482 8145 3482 8111
      3467 8122

NED
Local storm report, May 17, 1:58 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
158 PM EDT THU MAY 17 2012

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

1202 PM     HAIL             2 NNW BLACKSTOCK        34.58N 81.16W
05/17/2012  E0.88 INCH       CHESTER            SC   POST OFFICE

            NICKEL SIZED HAIL BETWEEN BLACKSTOCK AND CORNWELL. ENOUGH
            WIND TO BLOW DOWN SMALL LIMBS.

0135 PM     HAIL             6 SW LAURENS            34.44N 82.09W
05/17/2012  E0.75 INCH       LAURENS            SC   PUBLIC

            DIME SIZED HAIL.

&&

OUTLAW

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 9:37 PM EDTSevere Thunderstorm WarningGSPCherokee, York53 min
May 16, 9:43 PM EDTSpecial Weather StatementGSPOconee47 min
May 16, 10:15 PM EDTSpecial Weather StatementGSPCherokee45 min
May 16, 10:30 PM EDTAreal Flood AdvisoryGSPCherokee3 hr
May 16, 10:36 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg, Union54 min
May 16, 10:45 PM EDTSevere Thunderstorm WarningGSPAnderson, Oconee, Pickens34 min
May 16, 11:14 PM EDTSpecial Weather StatementGSPGreenville, Spartanburg46 min
May 16, 11:34 PM EDTSpecial Weather StatementGSPLaurens41 min
May 16, 11:38 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens67 min
May 17, 12:10 AM EDTAreal Flood AdvisoryGSPGreenville, Laurens, Spartanburg4 hr
May 17, 12:23 AM EDTSpecial Weather StatementGSPAnderson52 min
May 17, 1:16 AM EDTSpecial Weather StatementGSPLaurens44 min
May 17, 1:38 AM EDTSpecial Weather StatementGSPGreenwood52 min
May 17, 1:56 AM EDTSevere Thunderstorm WarningGSPGreenwood64 min
May 17, 11:57 AM EDTSevere Thunderstorm WarningGSPChester49 min
May 17, 12:29 PM EDTSevere Thunderstorm WarningGSPChester, Union55 min
May 17, 1:14 PM EDTSpecial Weather StatementGSPLaurens31 min
May 17, 1:15 PM EDTSpecial Weather StatementGSPChester30 min
May 17, 1:20 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens55 min
May 17, 2:41 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood51 min
May 17, 3:04 PM EDTSpecial Weather StatementGSPChester41 min
May 17, 3:56 PM EDTSevere Thunderstorm WarningGSPAbbeville32 min
May 17, 4:25 PM EDTSpecial Weather StatementGSPChester50 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2012Every severe thunderstorm warning in 2012

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.