Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 172, NWS Greenville-Spartanburg, SC

May 16, 2012Cherokee County, Spartanburg County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 16, 2012, 10:36 PM EDT for Cherokee County, Spartanburg County, Union County, South Carolina. It was in force for 54 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 16, 2012, 10:36 PM EDT (02:36 UTC)
Expired
May 16, 2012, 11:30 PM EDT
In force
54 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Cherokee County, SC, Spartanburg County, SC, Union County, SC

The radar

The Greer radar (KGSP), 58 km from the middle of the area, began a volume at 02:39 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 16, 10:40 PM EDTTSTM WND DMG1 Sw Gaffney, SCTREES DOWN ON ONEIL STREET.

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 4 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.6 hours before the alert went out and 194 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, Greensboro/Hi Pt, NC at 00:00Z on 2012-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 635 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2012-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
635 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1415 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
-3 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.

544 
WUUS52 KGSP 170236
SVRGSP
SCC021-083-087-170330-
/O.NEW.KGSP.SV.W.0172.120517T0236Z-120517T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1036 PM EDT WED MAY 16 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEROKEE COUNTY IN UPSTATE SOUTH CAROLINA...
  EAST CENTRAL SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...
  NORTH CENTRAL UNION COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 1130 PM EDT

* AT 1034 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
  GAFFNEY...AND MOVING SOUTHWEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  GAFFNEY.
  THICKETTY.
  PACOLET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3491 8188 3518 8166 3517 8157 3512 8144
      3504 8147 3503 8149 3501 8148 3478 8158
TIME...MOT...LOC 0236Z 028DEG 11KT 3508 8159

$$

ARK
2 follow-up statements
172 
WWUS52 KGSP 170253
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1053 PM EDT WED MAY 16 2012

SCC021-083-087-170330-
/O.CON.KGSP.SV.W.0172.000000T0000Z-120517T0330Z/
CHEROKEE SC-SPARTANBURG SC-UNION SC-
1053 PM EDT WED MAY 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
UNION...EAST CENTRAL SPARTANBURG AND CHEROKEE COUNTIES IN UPSTATE
SOUTH CAROLINA UNTIL 1130 PM EDT...

AT 1051 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
GAFFNEY...MOVING SOUTHWEST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  THICKETTY.
  PACOLET AND JONESVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM IS ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.

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 3491 8188 3518 8166 3517 8157 3512 8144
      3504 8147 3503 8149 3501 8148 3478 8158
TIME...MOT...LOC 0253Z 029DEG 13KT 3502 8162

$$

ARK
521 
WWUS52 KGSP 170323
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1123 PM EDT WED MAY 16 2012

SCC021-083-087-170333-
/O.EXP.KGSP.SV.W.0172.000000T0000Z-120517T0330Z/
CHEROKEE SC-SPARTANBURG SC-UNION SC-
1123 PM EDT WED MAY 16 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL UNION...EAST
CENTRAL SPARTANBURG AND CHEROKEE COUNTIES IN UPSTATE SOUTH CAROLINA
WILL EXPIRE AT 1130 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LEVELS.  HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3491 8188 3518 8166 3517 8157 3512 8144
      3504 8147 3503 8149 3501 8148 3478 8158
TIME...MOT...LOC 0323Z 029DEG 13KT 3493 8168

$$
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 May 16, 10:34 PM EDT, 2 minutes earlier.

Area forecast discussion, May 16, 10:34 PM EDT, 2 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1034 PM EDT WED MAY 16 2012

.SYNOPSIS...
A SLOW MOVING UPPER LEVEL AREA OF LOW PRESSURE WILL MOVE EAST ACROSS
THE AREA THROUGH THURSDAY. STRONG HIGH PRESSURE WILL THEN BUILD IN
FROM THE NORTH ON FRIDAY AND REMAIN THROUGH EARLY NEXT WEEK.

&&

.NEAR TERM /THROUGH THURSDAY/...
AS OF 1030 PM...CONVECTION DID DIMINISH IN TOTAL COVERAGE...BUT
LARGE CLUSTER REMAINED OVER THE FOOTHILLS AND FAR WESTERN PIEDMONT.
EXPECT CONVECTION TO CONTINUE TO DRIFT SOUTH AND WEST THRU THE EARLY
OVERNIGHT WITH THE BEST CHANCE OF CONVECTION ALONG AND NORTH OF
INTERSTATE 85 FROM ANDERSON TO SHELBY. STILL EXPECT CONVECTION TO
END BEFORE DAYBREAK...BUT SHOULD LINGER UNTIL AFTER MIDNIGHT.
CURRENT FORECAST LOWS STILL LOOK GOOD...BUT DEW POINTS WERE MUCH
HIGHER THAN PREV FCST. EXPECT BETTER FOG CHANCES TOWARD MORNING
GIVEN THE HIGHER DEW POINTS WITH BEST CHANCES WHERE RAIN FELL. ADDED
PATCHY FOG MOST LOCATIONS. BEST CHANCE FOR DENSE FOG WILL BE THE
SWRN NC MTN VALLEYS AND HAVE KEPT THAT MENTION AS WELL.

AS OF 750 PM...CONVECTION DIMINISHING WITH LOSS OF HEATING...BUT
WILL LINGER THRU MIDNIGHT. HAVE UPDATED POP FOR CURRENT RADAR
TRENDS. OTHERWISE...GOING FCST LOOKS GOOD...BUT DID ADD DENSE FOG
FOR THE LITTLE TN VALLEY OVERNIGHT.

PREVIOUS DISCUSSION...THE CURRENT WATER VAPOR IMAGERY AND THE LATEST
RAP RUN SHOW A WEAK H5 TROUGH ORIENTED NE TO SW ACROSS THE SRN
APPALACHIANS. UPPER DIVERGENCE ON THE EAST SIDE OF THE
TROUGH...WHICH HAS HELPED SPAWN WIDESPREAD THUNDERSTORM ACTIVITY
ALONG THE COAST...IS RESULTING IN A RAGGED BAROCLINIC LEAF BACK
ACROSS THE UPSTATE AND SRN NC PIEDMONT. THIS HAS CUT DOWN A BIT ON
THE INSOLATION ACROSS THE FA THIS AFTN. EVEN SO...ISOLATED SHRA AND
A FEW TSTMS HAVE DEVELOPED OVER THE REGION...THOUGH COVERAGE HAS
BEEN A LITTLE LESS THAN EXPECTED. THE CONVECTIVE COVERAGE IS
EXPECTED TO INCREASE SOME DURING THE LATE AFTN HOURS...THOUGH
NOTHING HIGHER THAN LOW CHANCE POPS HAS BEEN CARRIED OWING TO THE
WEAK SHEAR. WHILE THE STORMS SHOULD GO INTO THE LATE EVENING
HOURS...WE ARE NOT EXPECTING CONVECTION TO LAST AS LONG AS IT DID
LAST NIGHT. THERE IS STILL A CHANCE THAT ONE OR TWO OF THE STORMS
WILL REACH SEVERE LIMITS...PARTICULARLY ALONG AND SOUTH OF I-85
WHERE THE SHEAR IS A LITTLE STRONGER...AT LEAST UNTIL AROUND 00 UTC.

THE WEAK TROUGH WILL SETTLE ACROSS THE MIDLANDS LATE TONIGHT AND ON
THURSDAY...PUTTING THE FA UNDER NVA ALOFT. THE TROUGH PASSAGE WILL
BRING A WEAK COLD FRONT THROUGH THE AREA. THE FRONT WILL PUSH IN
FROM THE NE LATE TONIGHT...TURNING THE WINDS OUT OF THE NE AND
BRINGING MORE STABLE AIR ACROSS THE FOOTHILLS AND PIEDMONT. THE
MOUNTAINS WILL SEE LLVL MOISTURE POOLING DURING THE DAY ON THU...AND
A FEW SHRA/TSTMS ARE EXPECTED TO FIRE IN THE AFTN.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
AS OF 230 PM WEDNESDAY...SHORT RANGE MODELS INDICATE THE A BROAD MID
LEVEL TROF WILL PIVOT SE ALLOWING HEIGHTS TO RISE ACROSS THE MTNS
FRIDAY AFTERNOON. NAM FORECAST SOUNDINGS INDICATE A INVERSION AROUND
H6 ALONG WITH VERY MILD MID LEVEL TEMPERATURES...THE GFS ALSO
INDICATES WARM MID LEVEL TEMPERATURES. BOTH SOLUTIONS SUPPORT
AFTERNOON CAPE VALUES BELOW 1000 J/KG WITH SHALLOW LAYER OF CIN. AT
THE SFC...HIGH PRESSURE WILL REMAIN RIDGED NE TO SE ACROSS THE CWA.
GIVEN THE RISING MID HEIGHTS...SFC RIDGING...AND WEAKLY CAPPED
POTENTIAL INSTABILITY I WILL FAVOR DRY CONDITIONS EAST OF THE MTNS.
HOWEVER...CONDITIONS MAY REMAIN LESS CAPPED ACROSS THE MTNS AND
RIDGETOP CONVECTION COULD OCCUR DURING THE LATE AFTERNOON. I WILL
PAINT SCHC POPS ACROSS THE MTN RIDGES. TEMPERATURES SHOULD RANGE
VERY CLOSE TO NORMAL VALUES...MINS NEAR 60 WITH HIGHS NEAR 80.

ON SATURDAY...MID LEVEL HEIGHT VALUES WILL CONTINUE TO SLOWLY RISE
THROUGH THE AFTERNOON. SFC HIGH PRESSURE WILL REMAIN RIDGE SE ACROSS
THE CWA...SUPPLYING A STEADY LLVL NE WIND. THE NE FLOW RESULTS IN
LOWER LLVL DEWPOINTS AND OVERALL DRIER MOISTURE PROFILE. FORECAST
SOUNDINGS INDICATE LITTLE TO NO INSTABILITY ACROSS THE FORECAST
AREA. THE CHCS FOR DEEP CONVECTION APPEARS MINIMAL AND POPS WILL
REMAIN AROUND 10 PERCENT. TEMPERATURES MAY VERIFY WITHIN A DEGREE
ONE TO TWO DEGREES WARMER THAN FRIDAY.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
AS OF NOON WEDNESDAY...A COMPLICATED MID LEVEL PATTERN WILL REMAIN
ACROSS THE SOUTHEAST REGION THROUGH THE EXTENDED PERIOD. IT APPEARS
THAT A BROAD CLOSED LOW WILL REMAIN OVER THE REGION ON SUNDAY...THIS
LOW MAY PHASE WITH AN APPROACHING TROF ON TUESDAY AND WEDNESDAY. THE
TIMING AND PLACEMENT OF THE MAIN FEATURES IS UNCERTAIN. BASED ON
NATIONAL GUIDANCE AND FORECAST CONSISTENCY I WILL ADVERTISE A
GRADUALLY INCREASE IN POPS AND SKY COVER FROM EAST TO WEST SUNDAY
AND MONDAY...THEN KEEP CHCS AND ABUNDANT SKY COVER FOR TUES AND
WEDS. TEMPERATURES SUNDAY THROUGH WEDNESDAY ARE EXPECTED TO RANGE
AROUND NORMAL VALUES.

&&

.AVIATION /03Z THURSDAY THROUGH MONDAY/...
AT KCLT...TSRA WILL REMAIN CLOSE TO THE SITE AND COULD PROPAGATE
OVER THE AIRFIELD BEFORE DISSIPATING BY 02Z. HAVE KEPT THE TEMPO
TSRA FOR THAT REASON. WINDS WILL GENERALLY BE NLY THIS EVENING BUT
OUTFLOW BOUNDARY FROM THE STORMS COULD CREATE A SELY WIND.
OTHERWISE...EXPECT SCT LOW VFR AND BKN HIGHER CLOUDS OVERNIGHT WITH
WIND BECOMING CALM. MVFR FOG COULD DEVELOP TOWARD MORNING IF RAIN
DOES FALL THIS EVENING. NELY WIND WILL PICK UP WITH MIXING THU MORN
WITH A BRIEF PERIOD OF LOW END GUSTS POSSIBLE AROUND 15Z. EXPECT ENE
WIND WITH SCT CU FOR THE AFTERNOON.

ELSEWHERE...TSRA MOST LIKELY AT KHKY THIS EVENING SO TEMPO INCLUDED
THERE. OTHERWISE...SCT LOW VFR WITH BKN HIGHER CLOUDS EXPECTED ALONG
WITH LIGHT TO CALM WIND. FOG MOST LIKELY AT KAVL OVERNIGHT SO KEPT
IN THE MVFR VSBY. HOWEVER...FOG COULD DEVELOP AT KHKY IF RAIN FALLS.
NELY WIND PICKS UP WITH MIXING THU MORN WITH A BRIEF PERIOD OF LOW
END GUSTS POSSIBLE AROUND 15Z. EXPECT E TO SE WIND AND SCT CU FOR
THE AFTERNOON. BEST CHC FOR ANY CONVECTION WILL BE OVER THE NC
MTNS...BUT CHC TOO LOW FOR MENTION ATTM.

OUTLOOK...EXPECT ISOLD LATE DAY SHOWERS AND TSTMS FRI...ESP MTNS.
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...CSH
NEAR TERM...MCAVOY/RWH
SHORT TERM...NED
LONG TERM...NED
AVIATION...RWH
Hazardous weather outlook, May 16, 3:10 PM EDT, 7 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
310 PM EDT WED MAY 16 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-171915-
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-
310 PM EDT WED MAY 16 2012

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 ARE EXPECTED TO CONTINUE TO DEVELOP
THROUGH THE REST OF THE AFTERNOON AS THE ATMOSPHERE REMAINS
UNSTABLE AHEAD OF A WEAK COLD FRONT. A FEW OF THESE STORMS COULD
BECOME STRONG ENOUGH TO PRODUCE LARGE HAIL AND DAMAGING
WINDS...ESPECIALLY ALONG AND SOUTH OF INTERSTATE 85. THUNDERSTORMS
WILL BE SLOW MOVING OR STATIONARY THIS AFTERNOON...AND A FEW
LOCATIONS COULD SEE 1 TO 2 INCHES OR RAIN IN A SHORT PERIOD OF
TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

NED

In the hours before

Special weather statement, May 16, 9:14 PM EDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
914 PM EDT WED MAY 16 2012

NCZ068-SCZ008-009-170200-
CHEROKEE-CLEVELAND-YORK-
914 PM EDT WED MAY 16 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CHEROKEE...
NORTHWESTERN YORK AND SOUTHEASTERN CLEVELAND COUNTIES THROUGH 1000 PM
EDT...

AT 910 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES NORTHWEST OF KINGS MOUNTAIN...OR 7 MILES
EAST OF SHELBY...MOVING SOUTH AT 10 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO WACO...
  SHELBY...PATTERSON SPRINGS...KINGS MOUNTAIN...GROVER...EARL...KINGS
  MOUNTAIN STATE PARK AND BLACKSBURG.

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 3536 8140 3533 8136 3529 8136 3526 8132
      3516 8133 3516 8131 3504 8132 3509 8162
      3538 8151

ARK
Special weather statement, May 16, 9:16 PM EDT, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
916 PM EDT WED MAY 16 2012

NCZ068-508-170200-
CLEVELAND-GREATER RUTHERFORD-
916 PM EDT WED MAY 16 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN RUTHERFORD AND
NORTHWESTERN CLEVELAND COUNTIES THROUGH 1000 PM EDT...

AT 914 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CASAR...OR 16 MILES SOUTH OF MORGANTON...
MOVING SOUTH AT 10 MPH.

THIS STORM WILL BE NEAR...
  CASAR...
  POLKVILLE...

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 3556 8165 3557 8160 3556 8158 3557 8154
      3555 8151 3552 8151 3547 8148 3529 8150
      3534 8179 3558 8170

ARK
Special weather statement, May 16, 9:43 PM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
943 PM EDT WED MAY 16 2012

SCZ001-002-004-170230-
GREATER OCONEE-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
943 PM EDT WED MAY 16 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN OCONEE AND WESTERN
PICKENS COUNTIES THROUGH 1030 PM EDT...

AT 939 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SALEM...OR 9 MILES NORTHEAST OF WALHALLA...
MOVING SOUTH AT 5 MPH.

THIS STORM WILL BE NEAR...
  LAKE KEOWEE...
  WALHALLA...

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

LAT...LON 3501 8307 3504 8287 3483 8285 3481 8289
      3478 8288 3474 8290 3473 8286 3470 8287
      3469 8285 3471 8314

ARK
Special weather statement, May 16, 10:03 PM EDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1003 PM EDT WED MAY 16 2012

NCZ056-069-170245-
CATAWBA-LINCOLN-
1003 PM EDT WED MAY 16 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CATAWBA AND WESTERN
LINCOLN COUNTIES THROUGH 1045 PM EDT...

AT 1001 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTH OF VALE...OR 10 MILES SOUTHWEST OF
NEWTON...MOVING SOUTH AT 5 MPH.

THIS STORM WILL BE NEAR...
  VALE...

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

LAT...LON 3566 8125 3541 8129 3542 8143 3542 8146
      3552 8151 3555 8151 3556 8152 3562 8150
      3569 8142

ARK
Special weather statement, May 16, 10:15 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1015 PM EDT WED MAY 16 2012

NCZ068-508-SCZ008-170300-
CHEROKEE-CLEVELAND-GREATER RUTHERFORD-
1015 PM EDT WED MAY 16 2012

...STRONG THUNDERSTORMS WILL AFFECT CHEROKEE...SOUTHEASTERN
RUTHERFORD AND WESTERN CLEVELAND COUNTIES THROUGH 1100 PM EDT...

AT 1012 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES SOUTHWEST OF
POLKVILLE TO EARL...MOVING SOUTHWEST AT 5 MPH.

THESE STORMS WILL BE NEAR...
  BLACKSBURG...
  BOILING SPRINGS NC...
  ELLENBORO...
  CLIFFSIDE...

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

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 3551 8168 3516 8140 3494 8165 3529 8193

ARK
Local storm report, May 16, 10:20 PM EDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1020 PM EDT WED MAY 16 2012

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

1014 PM     HAIL             5 NW BLACKSBURG         35.17N 81.58W
05/16/2012  E0.75 INCH       CHEROKEE           SC   TRAINED SPOTTER

            DIME SIZED HAIL REPORTED NW OF BALCKSBURG.

&&

JPT

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, 10:45 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, 2:13 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens61 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.