Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 543, NWS Greenville-Spartanburg, SC

August 10, 20124 counties in South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2012, 11:39 PM EDT for 4 counties in South Carolina. It was in force for 66 min. 2 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 10, 2012, 11:39 PM EDT (03:39 UTC)
Expired
Aug 11, 2012, 12:45 AM EDT
In force
66 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Anderson County, SC, Greenville County, SC, Pickens County, SC, Spartanburg County, SC

The radar

The Greer radar (KGSP), 13 km from the middle of the area, began a volume at 03:41 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
Aug 10, 11:51 PM EDTTSTM WND DMG4 W Greenville, SCTREE DOWN ON SOUTH FLORIDA AVE AT EASLEY BRIDGE RD.
Aug 10, 11:57 PM EDTTSTM WND DMG5 Ssw Greenville, SCA TREE AND A POWER LINE BLOWN DOWN ALONG DANHARDT ST.

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 2 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, 3.7 hours before the alert went out and 256 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, Peachtre/Fal Fld, GA at 00:00Z on 2012-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1442 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, Peachtre/Fal Fld, GA at 00:00Z on 2012-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.193958Sfc1 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
1442 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
974 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
60 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.

237 
WUUS52 KGSP 110339
SVRGSP
SCC007-045-077-083-110445-
/O.NEW.KGSP.SV.W.0543.120811T0339Z-120811T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1139 PM EDT FRI AUG 10 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA...
  CENTRAL GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA...
  EASTERN PICKENS COUNTY IN UPSTATE SOUTH CAROLINA...
  WESTERN SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 1245 AM EDT

* AT 1134 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
  EASLEY...OR 6 MILES SOUTHEAST OF PICKENS...AND MOVING EAST AT 15
  MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  POWDERSVILLE.
  WHITE HORSE ROAD AT I-85.
  FURMAN UNIVERSITY.
  CHERRYDALE POINT...DOWNTOWN GREENVILLE AND TRAVELERS REST.
  HAYWOOD MALL.
  SHOPS AT GREENRIDGE.
  TAYLORS...GREER...PELHAM ROAD AT I-85 AND GSP AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

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.

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 3467 8271 3495 8274 3516 8214 3474 8204
      3473 8208 3475 8211 3478 8215 3473 8218
TIME...MOT...LOC 0339Z 253DEG 14KT 3484 8260

$$

JOH
2 follow-up statements
770 
WWUS52 KGSP 110401
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1201 AM EDT SAT AUG 11 2012

SCC007-045-077-083-110445-
/O.CON.KGSP.SV.W.0543.000000T0000Z-120811T0445Z/
ANDERSON SC-SPARTANBURG SC-GREENVILLE SC-PICKENS SC-
1201 AM EDT SAT AUG 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
PICKENS...CENTRAL GREENVILLE...WESTERN SPARTANBURG AND EXTREME
NORTHEASTERN ANDERSON COUNTIES UNTIL 1245 AM EDT...

AT 1158 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
POWDERSVILLE...OR 6 MILES WEST OF DOWNTOWN GREENVILLE...MOVING EAST
AT 15 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  WHITE HORSE ROAD AT I-85.
  FURMAN UNIVERSITY.
  CHERRYDALE POINT...DOWNTOWN GREENVILLE AND TRAVELERS REST.
  HAYWOOD MALL.
  TAYLORS AND SHOPS AT GREENRIDGE.
  GREER...PELHAM ROAD AT I-85...GSP AIRPORT AND LAKE ROBINSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

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.

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 3473 8260 3498 8264 3516 8214 3474 8204
      3473 8208 3478 8215 3473 8218
TIME...MOT...LOC 0402Z 253DEG 14KT 3487 8250

$$

JOH
170 
WWUS52 KGSP 110440
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1240 AM EDT SAT AUG 11 2012

SCC007-045-077-083-110450-
/O.EXP.KGSP.SV.W.0543.000000T0000Z-120811T0445Z/
ANDERSON SC-SPARTANBURG SC-GREENVILLE SC-PICKENS SC-
1240 AM EDT SAT AUG 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PICKENS...CENTRAL
GREENVILLE...WESTERN SPARTANBURG AND EXTREME NORTHEASTERN ANDERSON
COUNTIES WILL EXPIRE AT 1245 AM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LEVELS.

LAT...LON 3473 8260 3498 8264 3516 8214 3474 8204
      3473 8208 3478 8215 3473 8218
TIME...MOT...LOC 0440Z 253DEG 14KT 3491 8233

$$

JOH

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 10, 8:08 PM EDT, 3 hours 31 minutes earlier.

Area forecast discussion, Aug 10, 8:08 PM EDT, 3 hours 31 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
808 PM EDT FRI AUG 10 2012

.SYNOPSIS...
A COLD FRONT WILL APPROACH FROM THE WEST THIS AFTERNOON AND SHOULD
GET HUNG UP ACROSS THE MOUNTAINS TONIGHT. THE FRONT IS EXPECTED TO
PUSH THROUGH LATE SATURDAY AND THEN SOUTH OF THE AREA ON SUNDAY.
HIGH PRESSURE WILL MOVE IN FOR THE EARLY PART OF NEXT WEEK.
MEANWHILE ANOTHER FRONT WILL APPROACH THE AREA BY MID WEEK.

&&

.NEAR TERM /THROUGH SATURDAY/...
AS OF 530 PM...A STRONG STORM HAS MOVED INTO RABUN COUNTY...AND A
LINE OF CONVECTION IS ORGANIZING OVER THE GREAT VALLEY OF TN.
HOWEVER...NOT MUCH IS HAPPENING OVER THE ERN FOOTHILLS AND PIEDMONT
ZONES ATTM AND I/VE CUT BACK POPS IN THOSE LOCATIONS FOR THE NEXT
COUPLE HOURS. THERE CONTINUES TO BE GOOD MODEL AGREEMENT THAT
CONVECTION WILL BECOME MORE WIDESPREAD THROUGH BOTH AN MCS MOVING
INTO THE NC MTNS AND CONVECTION DEVELOPING IN STRENGTHENING LLVL
CONVERGENCE ACROSS THE FOOTHILLS LATER THIS EVENING. AND THIS IS
REFLECTED WELL IN THE GRIDS.

AS OF MID AFTERNOON...VISIBLE SATELLITE IMAGERY SHOWS LOW CONVECTIVE
CLOUDS SCATTERING SUFFICIENTLY E OF THE BLUE RIDGE TO ALLOW HEATING
THAT HAS RAISED SFC-BASED CAPE INTO THE 1500-2000 J/KG RANGE ON THE
LAPS ANALYSIS. SHOWER ACTIVITY HAS DEVELOPED OVER THE CLT METRO AREA
AND ALONG THE BLUE RIDGE...WITH MORE ACTIVITY CLOSER TO THE FRONT
OVER THE CUMBERLAND PLATEAU. EXPECT SHOWERS AND STORMS TO CONTINUE
DEVELOPING AND BECOMING MORE NUMEROUS...MAINLY OVER THE MTNS AND
FOOTHILLS...THROUGH THE LATE AFTERNOON. SEVERE WEATHER REMAINS A
CONCERN WITH SOME DRY AIR ABOVE 500 MB...ALTHO IN GENERAL THE
SOUNDINGS DO NOT LOOK AS FAVORABLE AS YESTERDAY.

OVER THE NEXT 24 HOURS OR SO...THE MODELS ARE IN GOOD AGREEMENT WITH
THE EVOLUTION OF WEATHER FEATURES...AND IN PARTICULAR SHOW THE AXIS
OF THE UPPER TROF AND THE UPPER JET REMAINING TO OUR WEST. THIS WILL
ACT TO KEEP THE SURFACE FRONT HUNG UP PROBABLY OVER THE MTNS THROUGH
SATURDAY AFTERNOON. THE TREND...THEREFORE...IS TO HOLD ON TO MORE OF
A CHANCE OF SHOWER/TSTM ACTIVITY OVER A LARGER PART OF THE FCST AREA
THROUGH 00Z SUNDAY.

THE THREAT OF SEVERE STORMS WILL SLOWLY INCREASE AS BUOYANCY
AND DCAPE SLOWLY BECOME MORE FAVORABLE...WITH JUST ENOUGH SHEAR TO
PERHAPS ORGANIZE STORMS EARLY THIS EVENING. THE 4KM WRF DEVELOPS A
LINE OF STORMS OFF THE BLUE RIDGE AROUND 23Z WHILE THE HRRR BRINGS
THE LINE OF STORMS ACROSS TN AND INTO THE NC MTNS AROUND THAT TIME.
ABUNDANT LOW LEVEL MOISTURE AND ENUF UPPER FORCING WILL EXIST TO
WARRANT A LIKELY POP INTO THE EVENING HOURS. WILL KEEP POP IN THE
CHANCE RANGE OVERNIGHT AS ADDITIONAL STORMS COULD REDEVELOP AT ANY
TIME WITH THE SITUATION REMAINING UNCHANGED. TEMPS WILL REMAIN MILD.

ON SATURDAY...EXPECT THE FRONT TO BE HUNG UP OVER THE MTNS AT
SUNRISE. UNLESS EXTENSIVE CONVECTIVE DEBRIS PREVENTS IT...CONVECTION
SHOULD RE-FIRE EARLY IN THE DAY CLOSE TO THE FRONT AS IT DID TO OUR
WEST THIS PAST MORNING. UPPER DIVERGENCE...DPVA...AND PLENTY OF
MOISTURE SUGGEST ANOTHER POP IN THE LIKELY RANGE BY AFTERNOON OVER
THE PIEDMONT...AND A CHANCE UP TO THE BLUE RIDGE. A GUIDANCE BLEND
WAS USED FOR HIGH TEMPS.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
AT 200 PM EDT FRIDAY...12Z GFS AND NAM STILL SOMEWHAT AT ODDS AS TO
HOW FAST THE FRONTAL BAND OF DEEP LAYER MOISTURE AND PRECIP WILL
EXIT THE FORECAST AREA OVER THE EAST. THE NAM STIL IS FASTER AND HAS
THE DEEP LAYER FRONTAL MOISTURE EAST OF THE AREA BY 00Z SUN...WHILE
THE GFS IS CONSIDERABLY SLOWER AND WETTER. THE SREF APPEARS TO
CONTINUE TO BE A GOOD COMPROMISE FOR THE SOLUTION. THE SREF KEEPS
PRECIP CHANCES OVER THE EASTERN MOST PART OF THE FORECAST AREA EARLY
ON SAT NIGHT...AND THEN MOVES THE MOISTURE/PRECIP EAST BY MIDNIGHT.
WILL ALSO SCATTER AND CLEAR THE CLOUDS FROM NW TO SE SAT NIGHT. HIGH
PRESSURE BUILDS OVER THE AREA ON SUN WHICH SHOULD PRODUCE A VERY
NICE DAY WITH DEWPOINTS MIXING OUT INTO THE 50S OVER THE MOUNTAINS
AND LOW 60S ELSEWHERE. THE HIGH SHIFTS EAST OF THE AREA ON
MONDAY...BUT ITS LINGERING INFLUENCE SHOULD ALLOW FOR ANOTHER DRY
DAY ON MONDAY. TEMPS ARE EXPECTED TO BE SLIGHTLY BELOW CLIMO ON SUN
AND NEAR CLIMO ON MON.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
AT 130 PM EDT FRIDAY...A SOMEWHAT PROGRESSIVE PATTERN APPEARS TO BE
IN STORE DURING THE MEDIUM RANGE. THE UPPER AIR PATTERN WILL
GENERALLY FEATURE A MEAN TROUGH OVER THE EASTERN U.S. WITH
INDICATIONS FROM THE LATEST 12Z GFS OF BUILDING HEIGHTS TOWARD THE END
OF NEXT WEEK OVER THE EAST. LATEST HPC/GFS GUIDANCE SUGGESTS A WEAK
COLD FRONT WILL CROSS THE REGION ON TUE ALONG WITH SCATTERED
CONVECTION. THE GFS DRIVES THE FRONT SE OF THE AREA BY WED WITH HIGH
PRESSURE BUILDING IN THROUGH THU. THUS ONLY CLIMO TYPE POPS FOR
AFTERNOON CONVECTION IN THE MOUNTAINS WED AND THU. ANOTHER FRONT
APPROACHES THE AREA ON FRI AND PER HPC WILL FORECAST CHANCE TYPE
POPS. TEMPS SHOULD BE NEAR CLIMO THROUGH THE PERIOD.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
AT KCLT...AN AREA OF SHRA WAS ABOUT 40 MI WEST OF THE AIRFIELD AT
ISSUANCE TIME. IF THEY DEVELOP FURTHER THEY COULD GET CLOSE ENUF TO
WARRANT A VCTS IN ABOUT AN HOUR. STILL EXPECTING SHRA/TSTMS TO
DEVELOP AS THE EVENING PROGRESSES...THOUGH I/VE PUSHED THE TEMPO
GROUP FOR THUNDER BACK AN HOUR...TO 02-05 UTC. IFR STRATUS IS
EXPECTED TO DEVELOP AGAIN TONIGHT. HOWEVER...IF THERE ISN/T MUCH
PCPN AROUND THE AIRFIELD...THEN THE LOW CLOUDS MAY STAY TO THE
SOUTHEAST...DOWN ACROSS THE MIDLANDS. WINDS WILL GENERALLY BE FROM
THE S TO SW OVERNIGHT AND SATURDAY. A COLD FRONT WILL STALL OVER THE
FOOTHILLS TMRW WITH MORE THUNDERSTORMS DEVELOPING OVER THE PIEDMONT
IN THE AFTN AND EVENING HOURS.

ELSEWHERE...AS A COLD FRONT ENTERS THE MOUNTAINS THIS
EVENING...SHRA/TSTMS WILL INCREASE IN COVERAGE ACROSS THE REGION. I
STILL EXPECT ENOUGH COVERAGE THAT TEMPO GROUPS HAVE BEEN INCLUDED AT
ALL TAF SITES FOR VARIOUS PERIODS OF TIME INTO THE EARLY MORNING
HOURS. THERE WAS AN AREA OF TSTMS NOT TOO FAR NW OF KGSP AND KGMU AT
ISSUANCE TIME ALONG WITH OTHER STRONG STORMS ABOUT 15 MILES NORTH OF
KAVL. LATER TONIGHT VALLEY FOG IS A GOOD BET ACROSS THE FRENCH BROAD
VALLEY...ESPECIALLY IF THERE IS LATE NIGHT CLEARING. THE LOW LEVEL
WINDS WILL VEER AROUND TO THE SW OVER THE FOOTHILLS AND PIEDMONT.
THIS MAY CAUSE IFR CIGS TO DEVELOP SOUTH OF ALL THE TAF SITES...DOWN
ACROSS THE MIDLANDS. HOWEVER...IF THERE IS FAIRLY WIDESPREAD RAIN
WITH SHRA/TSTMS...THEN THE LOW CLOUDS SHOULD FORM CLOSER TO THE
MTNS. I/M BANKING ON THIS AND HAVE INCLUDED IFR CIGS LATER
TONIGHT...IN LINE WITH THE MODEL GUIDANCE.

OUTLOOK...A COLD FRONT WILL SLOWLY CROSS THE AREA LATE SATURDAY...
WITH DRIER HIGH PRES BUILDING IN FROM THE W THE LATTER HALF OF THE
WEEKEND. WEAK HIGH PRESSURE WILL LINGER THROUGH EARLY NEXT WEEK.

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...PM
NEAR TERM...MCAVOY
SHORT TERM...LG
LONG TERM...LG
AVIATION...MCAVOY
Hazardous weather outlook, Aug 10, 3:25 PM EDT, 8 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT FRI AUG 10 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-111930-
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-
325 PM EDT FRI AUG 10 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.

THUNDERSTORMS ARE IN THE FORECAST FOR LATE THIS AFTERNOON AND
TONIGHT. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE...PRODUCING
DAMAGING WIND AND LARGE HAIL. CLOUD TO GROUND LIGHTNING AND
LOCALLY HEAVY RAINFALL CAN BE EXPECTED WITH ANY THUNDERSTORMS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

LG

In the hours before

Special weather statement, Aug 10, 8:29 PM EDT, 3 hours 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
829 PM EDT FRI AUG 10 2012

SCZ007-110100-
SPARTANBURG-
829 PM EDT FRI AUG 10 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN SPARTANBURG COUNTY
THROUGH 900 PM EDT...

AT 828 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHEAST OF INMAN...OR 9 MILES NORTHWEST
OF SPARTANBURG...MOVING EAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BOILING SPRINGS SC...
  SPARTANBURG...

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

LAT...LON 3517 8191 3494 8185 3491 8215 3509 8219

NED
Local storm report, Aug 10, 9:10 PM EDT, 2 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
910 PM EDT FRI AUG 10 2012

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

0906 PM     HAIL             MONTREAT                35.65N 82.30W
08/10/2012  E0.88 INCH       BUNCOMBE           NC   TRAINED SPOTTER

&&

MCAVOY
Special weather statement, Aug 10, 10:00 PM EDT, 1 hour 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1000 PM EDT FRI AUG 10 2012

NCZ053-110230-
BUNCOMBE-
1000 PM EDT FRI AUG 10 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL BUNCOMBE COUNTY THROUGH
1030 PM EDT...

AT 959 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR UNC ASHEVILLE...OR NEAR DOWNTOWN
ASHEVILLE...MOVING EAST AT 25 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  DOWNTOWN ASHEVILLE...
  ASHEVILLE MALL...
  FAIRVIEW...

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3572 8243 3552 8239 3550 8268 3568 8270

NED
Special weather statement, Aug 10, 10:01 PM EDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1001 PM EDT FRI AUG 10 2012

NCZ504-506-110230-
EASTERN MCDOWELL-GREATER BURKE-
1001 PM EDT FRI AUG 10 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN MCDOWELL AND
SOUTHWESTERN BURKE COUNTIES THROUGH 1030 PM EDT...

AT 959 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES WEST OF DYSARTSVILLE...OR 7 MILES
SOUTHEAST OF MARION...MOVING EAST AT 25 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  DYSARTSVILLE...

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3577 8164 3559 8168 3559 8171 3561 8172
      3561 8175 3559 8178 3559 8180 3558 8180
      3556 8199 3574 8199 3576 8195 3578 8192

NED
Local storm report, Aug 10, 10:32 PM EDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1032 PM EDT FRI AUG 10 2012

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

0949 PM     TSTM WND DMG     4 S MARION              35.62N 82.01W
08/10/2012                   MCDOWELL           NC   911 CALL CENTER

            TWO TREES DOWN ALONG GOOSE CREEK ROAD. TIME DETERMINED
            FROM RADAR DATA.

&&

NED
Special weather statement, Aug 10, 10:46 PM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1046 PM EDT FRI AUG 10 2012

SCZ002>006-010-110330-
ANDERSON-GREATER GREENVILLE-GREATER OCONEE-GREATER PICKENS-GREENVILLE
MOUNTAINS-PICKENS MOUNTAINS-
1046 PM EDT FRI AUG 10 2012

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL GREENVILLE...EASTERN
OCONEE...NORTHERN ANDERSON AND PICKENS COUNTIES THROUGH 1130 PM
EDT...

AT 1041 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NINE TIMES TO
SENECA...MOVING EAST AT 25 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  PICKENS...
  PENDLETON...
  LIBERTY...
  EASLEY...
  TRAVELERS REST...
  POWDERSVILLE...

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

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

LAT...LON 3462 8304 3476 8297 3481 8289 3487 8291
      3501 8284 3503 8236 3460 8258

JOH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:29 PM EDTSpecial Weather StatementGSPSpartanburg31 min
Aug 10, 10:46 PM EDTSpecial Weather StatementGSPPickens44 min
Aug 10, 10:55 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Oconee, Pickens50 min
Aug 11, 12:23 AM EDTSpecial Weather StatementGSPCherokee, Spartanburg52 min
Aug 11, 2:02 AM EDTSpecial Weather StatementGSPSpartanburg43 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.