Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 524, NWS Greenville-Spartanburg, SC

August 8, 20124 counties in South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 8, 2012, 4:14 PM EDT for 4 counties in South Carolina. It was in force for 47 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 8, 2012, 4:14 PM EDT (20:14 UTC)
Expired
Aug 8, 2012, 5:01 PM EDT
In force
47 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Anderson County, SC, Greenville County, SC, Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 62 km from the middle of the area, began a volume at 20:17 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 8, 4:25 PM EDTTSTM WND DMG4 Sw Powdersville, SCTREES DOWN ON MY AIRY CHURCH RD
Aug 8, 4:30 PM EDTTSTM WND DMG10 Wnw Anderson, SCHIGHWAY PATROL REPORTED A TREE BLOWN DOWN ON I-85 NEAR MILE MARKER 13 AND ANOTHER TREE BLOWN DOWN ON MOUNTAIN VIEW RD 7 WSW ANDERSON.
Aug 8, 4:30 PM EDTTSTM WND DMG7 Wsw Anderson, SCHIGHWAY PATROL REPORTED A TREE BLOWN DOWN ON MOUNTAIN VIEW RD.

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 11 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 12:00Z, 8.2 hours before the alert went out and 207 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 12:00Z on 2012-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 713 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 12:00Z on 2012-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.1939Sfc1 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
713 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
5 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.

948 
WUUS52 KGSP 082014
SVRGSP
SCC007-045-073-077-082115-
/O.NEW.KGSP.SV.W.0524.120808T2014Z-120808T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
414 PM EDT WED AUG 8 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHERN GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHEASTERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHERN PICKENS COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 515 PM EDT

* AT 413 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 PIEDMONT TO 7 MILES NORTHWEST
  OF WILLIAMSTON TO SENECA...AND MOVING SOUTHEAST AT 15 MPH.

* SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  DONALDSON CENTER...PIEDMONT AND PENDLETON.
  WILLIAMSTON.
  SANDY SPRINGS.
  FAIR PLAY.
  BELTON.
  ANDERSON.
  BROADWAY LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THESE SEVERE THUNDERSTORMS ARE 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 3448 8288 3449 8305 3450 8307 3471 8317
      3486 8249 3462 8222 3448 8232 3437 8283
TIME...MOT...LOC 2014Z 325DEG 14KT 3474 8246 3466 8258
          3468 8295

$$

NED
3 follow-up statements
474 
WWUS52 KGSP 082030
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
430 PM EDT WED AUG 8 2012

SCC077-082039-
/O.CAN.KGSP.SV.W.0524.000000T0000Z-120808T2115Z/
PICKENS SC-
430 PM EDT WED AUG 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN PICKENS COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS 
AREA.

LAT...LON 3437 8283 3448 8288 3450 8307 3463 8314
      3475 8290 3464 8283 3463 8285 3462 8284
      3483 8247 3462 8222 3448 8232
TIME...MOT...LOC 2029Z 325DEG 14KT 3469 8242 3461 8254
          3463 8291

$$

SCC007-045-073-082115-
/O.CON.KGSP.SV.W.0524.000000T0000Z-120808T2115Z/
ANDERSON SC-GREENVILLE SC-OCONEE SC-
430 PM EDT WED AUG 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
OCONEE...SOUTHEASTERN GREENVILLE AND ANDERSON COUNTIES UNTIL 515 PM
EDT...

AT 425 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 PIEDMONT TO WILLIAMSTON TO
SENECA...MOVING SOUTHEAST AT 15 MPH.

SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  WILLIAMSTON.
  SANDY SPRINGS.
  FAIR PLAY.
  BELTON.
  ANDERSON.
  BROADWAY LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THESE SEVERE THUNDERSTORMS ARE 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 3437 8283 3448 8288 3450 8307 3463 8314
      3475 8290 3464 8283 3463 8285 3462 8284
      3483 8247 3462 8222 3448 8232
TIME...MOT...LOC 2029Z 325DEG 14KT 3469 8242 3461 8254
          3463 8291

$$

NED
003 
WWUS52 KGSP 082048
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
448 PM EDT WED AUG 8 2012

SCC045-073-082058-
/O.CAN.KGSP.SV.W.0524.000000T0000Z-120808T2115Z/
GREENVILLE SC-OCONEE SC-
448 PM EDT WED AUG 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN OCONEE AND
SOUTHEASTERN GREENVILLE COUNTIES IS CANCELLED...

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

LAT...LON 3437 8283 3445 8286 3448 8288 3449 8296
      3450 8297 3462 8285 3471 8247 3467 8246
      3467 8247 3465 8245 3454 8243 3448 8232
TIME...MOT...LOC 2048Z 325DEG 14KT 3448 8267

$$

SCC007-082115-
/O.CON.KGSP.SV.W.0524.000000T0000Z-120808T2115Z/
ANDERSON SC-
448 PM EDT WED AUG 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
ANDERSON COUNTY UNTIL 515 PM EDT...

AT 446 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR ANDERSON...MOVING SOUTHEAST AT
15 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  BROADWAY LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. 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 3437 8283 3445 8286 3448 8288 3449 8296
      3450 8297 3462 8285 3471 8247 3467 8246
      3467 8247 3465 8245 3454 8243 3448 8232
TIME...MOT...LOC 2048Z 325DEG 14KT 3448 8267

$$

NED
427 
WWUS52 KGSP 082101
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
501 PM EDT WED AUG 8 2012

SCC007-082112-
/O.CAN.KGSP.SV.W.0524.000000T0000Z-120808T2115Z/
ANDERSON SC-
501 PM EDT WED AUG 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ANDERSON COUNTY IS
CANCELLED...

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

LAT...LON 3437 8283 3445 8286 3448 8288 3449 8296
      3450 8297 3462 8285 3471 8247 3467 8246
      3467 8247 3465 8245 3454 8243 3448 8232
TIME...MOT...LOC 2102Z 325DEG 14KT 3444 8263

$$

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 Aug 8, 2:51 PM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Aug 8, 2:51 PM EDT, 1 hour 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
251 PM EDT WED AUG 8 2012

.SYNOPSIS...
BERMUDA HIGH PRESSURE WILL BUILD IN FROM THE SOUTHEAST TONIGHT AND
REMAINS THROUGH THURSDAY. A COLD FRONT WILL PUSH ACROSS THE AREA
FROM THE WEST LATE FRIDAY. DRY HIGH PRESSURE WILL THEN BUILD BEHIND
THE FRONT OVER THE WEEKEND.

&&

.NEAR TERM /THROUGH THURSDAY/...
AS OF 230 PM...EARLY AFTN CONVECTION DEVELOPING AHEAD OF A WEAK
SHORTWAVE OVER THE NC FOOTHILLS HAS PUT DOWN SOME OUTFLOWS ACROSS
THE NC PIEDMONT. ADDITIONAL CONVECTION IS DEVELOPING ALONG THE ERN
SLOPES OF THE MOUNTAINS AS A SECONDARY SHORTWAVE ARRIVES...AND WHERE
LOW LEVEL CONVERGENCE IS STRONGEST. THIS ACTIVITY SHOULD ALSO SPREAD
EWD GIVEN THE STEERING FLOW. POPS HAVE BEEN RAISED THROUGHOUT FOR
THE LATE AFTN HOURS. 3000 TO 4000 J/KG SFC BASED CAPE VALUES ARE
INDICATED ON LAPS ANALYSIS...AND THE MID LEVEL DRY PUNCH ALONG WITH
DCAPE VALUES AROUND 1000 J/KG SHOULD YIELD A FEW SEVERE TSTMS WITH
ANY 55 DBZ CORES ABOVE 25 KFT. HEAVY RAINFALL ON SATURATED GROUND
COULD ALSO CREATE ISOLD HYDRO ISSUES...BUT STORMS SHOULD MOVE A BIT
MORE TODAY COMPARED TO THE PAST FEW DAYS.

CONVECTION SHOULD DIE OUT FAIRLY QUICKLY WITH THE LOSS OF HEATING
THIS EVENING...WITH JUST DEBRIS CLOUDS EARLY...AND POSSIBLY LOW
CLOUDS AND FOG LATE. GUIDANCE REMAINS MIXED ON HOW DENSE THE FOG MAY
GET...BUT MTN VALLEYS SHOULD SEE THE WORST VSBY.

A MORE PROMINENT SHORTWAVE MOVING AROUND THE DEVELOPING UPPER
MIDWEST LOW PRESSURE ON THU WILL APPROACH THE REGION BUT REMAIN W OF
THE MTNS THROUGH THE LATE DAY. THE MAIN IMPACT OF THIS FEATURE
THROUGH THE NEAR TERM WILL BE BACKING SW FLOW AND SLOWLY DEEPENING
MOISTURE OVER THE REGION. SCATTERED AFTERNOON CONVECTION IS EXPECTED
WITH THE BEST POPS OVER THE MTNS AND SW SECTIONS. MAXES WILL BE
SIMILAR TO WED...PERHAPS A DEGREE HIGHER IN THE ERN PIEDMONT.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
AS OF 120 PM WEDNESDAY...AT LEAST SCATTERED CONVECTION IS EXPECTED
TO LINGER WELL INTO THE OVERNIGHT THURSDAY/EARLY FRIDAY. THIS IS A
RESULT ON AN INCREASINGLY MOIST WAA PATTERN IN THE WARM SECTOR OF AN
ANOMALOUSLY STRONG CYCLONE...AS WELL AS A PRECURSOR SHORT WAVE
TROUGH THAT THE MODELS DRIFT ACROSS THE AREA THURSDAY NIGHT.

FOR FRIDAY...THERE IS STILL QUITE A BIT OF UNCERTAINTY REGARDING THE
SEVERE WEATHER THREAT. IT STILL APPEARS AS IF THERE COULD BE FAIRLY
EXTENSIVE CLOUD COVER...AS WELL AS SHOWERS EARLY IN THE DAY. AS
SUCH...THE SHORT RANGE MODELS HAVE BACKED OFF ON THE DEGREE OF
FRIDAY PM INSTABILITY DURING THE PAST 24 HOURS. DESPITE THE
STRENGTHENING UPPER FLOW...THE UNIDIRECTIONAL NATURE OF THE FORECAST
WIND PROFILES IS YIELDING MODEST AT BEST SHEAR. IN ADDITION...THE
BETTER DEEP LAYER FORCING WILL PASS NORTH OF THE AREA...ALTHOUGH
FAIRLY STRONG LOW LEVEL FORCING IS EXPECTED ALONG THE FRONT PROPER
DURING THE EVENING. TAKING ALL OF THIS INTO CONSIDERATION...WILL NOT
GO ABOVE THE LOW-LIKELY POPS THAT WERE INHERITED. THERE WILL STILL
BE A SEVERE WEATHER THREAT...ESPECIALLY IF ANYTHING IS ABLE TO
ORGANIZE ALONG THE FRONT.

FRIDAY NIGHT AND SATURDAY...WITH THE UPPER LOW SPINNING NORTH OF THE
REGION...AND ANOTHER SHORT WAVE TROUGH DROPPING OUT OF THE PLAINS...
THE MID-LEVEL TROUGH AXIS/SURFACE FRONT TAKES ITS TIME PUSHING
THROUGH THE AREA. IN FACT...BOTH MODELS FEATURE QUITE A BIT OF QPF
ACROSS THE SOUTHEAST HALF OF THE FORECAST AREA AFTER 12Z SATURDAY.
THIS WILL NECESSITATE RAMPING POPS UP TO THE CHANCE RANGE IN THESE
AREAS. ALSO...BY SATURDAY AFTERNOON...THE SOUTHERN PORTION OF THE
FRONT IS SO DIFFUSE THAT THE NAM INITIATES HIGH TERRAIN CONVECTION.
THEREFORE...SLIGHT CHANCE POPS WILL EXIST AS FAR NORTH AND WEST AS
THE BLUE RIDGE.

&&

.LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/...
AS OF 200 PM EDT WEDNESDAY...THE LATEST MEDIUM RANGE MODELS CONTINUE
TO INDICATE THAT THE TROUGH AXIS AND COLD FRONT WILL MOVE OFF TO THE
EAST LATE SATURDAY...WITH DECREASING PRECIPITATION FROM WEST TO
EAST. THEN DRY HIGH PRESSURE BUILDS IN FROM THE NW SUNDAY AND
REMAINS THROUGH MONDAY FOR RELATIVELY PLEASANT WEATHER. WILL
FORECAST DRY OVER THE PEDIMENT WITH SLIGHT CHANCE POPS ALONG THE
BLUE RIDGE SUN/MON. ANOTHER WEAK COLD FRONT IS EXPECTED TO PUSH
ACROSS THE AREA TUESDAY FOLLOWED BY HIGH PRESSURE ON WED. WITH LOWER
PW VALUES...PREDOMINANT DOWNSLOPE WEST WINDS AND WEAK
INSTABILITY...WILL MENTION SLIGHT TO LOW END CHANCE POPS FOR
DIURNAL CONVECTION TUE/WED. TEMPERATURES WILL BE A COUPLE DEGREES
BELOW SEASONAL AVERAGES DURING THE PERIOD.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
AT KCLT...CONVECTION HAS DEVELOPED ALL AROUND THE AIRFIELD THIS AFTN
ON OUTFLOWS. TEMPO TSRA 19Z TO 23Z STILL LOOKS LIKE THE BEST WINDOW
FOR TSRA AT THE AIRFIELD. ANY GUSTS WOULD BE FROM THE N AND WILL BE
ADDED AS NECESSARY. MAINLY VFR CIGS ARE EXPECTED...BUT WITH TEMPO
MVFR UNDER TSRA. THE ACTIVITY SHOULD DIMINISH QUICKLY THIS EVENING.
A MOIST BOUNDARY LAYER UNDER DRYING MID AND UPPER LEVEL AIR COULD
LEAD TO ANOTHER ROUND OF LOW CLOUDS...HOWEVER...NONE OF THE GUIDANCE
FEATURES ANY RESTRICTIONS TOWARD DAYBREAK AT THIS POINT. WILL HINT
TOWARD IFR CONDITIONS WITH A FEW007 MENTION FOR NOW. WINDS WILL BE
LIGHT.

ELSEWHERE...TSTMS WERE FORMING ALL ALONG THE ERN ESCARPMENT OF THE
MTNS THIS AFTN...AND COVERAGE SHOULD SLOWLY EXPAND EASTWARD. TEMPO
TSRA CHANCES LOOK BEST FROM KGMU TO KGSP THIS AFTN...WITH VCTS
MENTION ELSEWHERE UNLESS SOMETHING GETS CLOSE. EXPECT MAINLY SCT TO
BKN VFR CUMULUS CLOUDS...WITH TEMPO CIGS EXPECTED UNDER TSTMS. FLOW
SHOULD REMAIN LIGHT SW TO WSW EAST OF THE MOUNTAINS AND NW AT KAVL.
THE ACTIVITY WILL DIMINISH QUICKLY THIS EVENING...WITH A DECENT
CHANCE OF LOW CLOUDS/FOG AGAIN OVERNIGHT GIVEN THE MOIST BL AND
DRYING ALOFT. THE BEST CHANCE OF DAYBREAK IFR WILL BE KAVL TO KHKY.

OUTLOOK...SCATTERED AFTERNOON TSTMS WILL DEVELOP AGAIN THU...MAINLY
IN THE MTNS. A COLD FRONT WILL APPROACH FROM THE NW ON FRIDAY TO
INCREASE THUNDERSTORM COVERAGE THROUGH FRI NIGHT. DRIER HIGH PRES
WILL RETURN OVER THE WEEKEND AND LINGER INTO 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...JOH
NEAR TERM...HG
SHORT TERM...JDL
LONG TERM...JOH
AVIATION...HG
Hazardous weather outlook, Aug 8, 3:27 PM EDT, 47 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
327 PM EDT WED AUG 8 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-091930-
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-
327 PM EDT WED AUG 8 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 WILL CONTINUE TO DEVELOP OVER THE REGION
THIS AFTERNOON AND EVENING. THE STRONGEST STORMS WILL BE CAPABLE
OF PRODUCING A BRIEF PERIOD OF LOCALLY DAMAGING WIND GUSTS AND
PERHAPS LARGE HAIL. FREQUENT CLOUD TO GROUND LIGHTNING AND LOCALLY
HEAVY RAINFALL CAN OCCUR WITH ANY THUNDERSTORM.

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

A STRONG COLD FRONT WILL APPROACH THE REGION LATE FRIDAY. THERE
IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ASSOCIATED WITH THE
FRONT. DAMAGING WIND GUSTS WILL BE THE PRIMARY THREAT.

.SPOTTER INFORMATION STATEMENT...

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

LANE

In the hours before

Special weather statement, Aug 8, 3:09 PM EDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
309 PM EDT WED AUG 8 2012

SCZ002-003-005-006-081945-
GREATER GREENVILLE-GREATER PICKENS-GREENVILLE MOUNTAINS-PICKENS
MOUNTAINS-
309 PM EDT WED AUG 8 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN PICKENS AND WESTERN
GREENVILLE COUNTIES THROUGH 345 PM EDT...

AT 305 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES SOUTH OF PUMPKINTOWN...OR 5 MILES
NORTHEAST OF PICKENS...MOVING SOUTHEAST AT 5 MPH.

PEOPLE IN EASTERN PICKENS AND WESTERN GREENVILLE COUNTIES...INCLUDING
THE FOLLOWING LOCATIONS...

PICKENS AND EASLEY...

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

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

LAT...LON 3477 8275 3507 8281 3508 8278 3507 8278
      3507 8276 3508 8275 3513 8241 3486 8243

NED
Local storm report, Aug 8, 3:24 PM EDT, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
324 PM EDT WED AUG 08 2012

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

0220 PM     TSTM WND DMG     2 S MOORESVILLE         35.55N 80.81W
08/08/2012                   IREDELL            NC   FIRE DEPT/RESCUE

            TREES DOWN ON SHEARERS ROAD.

&&

JOH
Local storm report, Aug 8, 3:51 PM EDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
351 PM EDT WED AUG 08 2012

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

0310 PM     HAIL             3 WNW MORGANTON         35.76N 81.75W
08/08/2012  M1.00 INCH       BURKE              NC   PUBLIC

&&

JOH
Special weather statement, Aug 8, 4:02 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
402 PM EDT WED AUG 8 2012

NCZ505-506-508-082045-
EASTERN MCDOWELL-GREATER RUTHERFORD-MCDOWELL MOUNTAINS-
402 PM EDT WED AUG 8 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN RUTHERFORD AND
SOUTHEASTERN MCDOWELL COUNTIES THROUGH 445 PM EDT...

AT 401 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTH OF GLENWOOD...OR 3 MILES SOUTHEAST
OF MARION...MOVING SOUTH AT 5 MPH.

PEOPLE IN NORTHERN RUTHERFORD AND SOUTHEASTERN MCDOWELL COUNTIES...
INCLUDING THE FOLLOWING LOCATIONS...

MARION...GLENWOOD AND DYSARTSVILLE...

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

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

LAT...LON 3571 8186 3563 8184 3559 8183 3558 8182
      3549 8179 3543 8209 3571 8210 3575 8191
Special weather statement, Aug 8, 4:09 PM EDT, 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
409 PM EDT WED AUG 8 2012

SCZ001-004-082045-
GREATER OCONEE-OCONEE MOUNTAINS-
409 PM EDT WED AUG 8 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN OCONEE COUNTY
THROUGH 445 PM EDT...

AT 405 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SENECA...OR 7 MILES SOUTHEAST OF WALHALLA...
MOVING SOUTH AT 5 MPH.

PEOPLE IN SOUTHEASTERN OCONEE COUNTY...INCLUDING THE FOLLOWING
LOCATION...

SENECA...

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 UP TO 40 MPH 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 3477 8310 3481 8289 3478 8288 3474 8290
      3473 8286 3470 8287 3464 8283 3463 8285
      3462 8285 3447 8301

NED
Local storm report, Aug 8, 4:10 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
410 PM EDT WED AUG 08 2012

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

0326 PM     TSTM WND DMG     5 ENE CHARLOTTE         35.23N 80.75W
08/08/2012                   MECKLENBURG        NC   BROADCAST MEDIA

            BROADCAST MEDIA REPORTED LARGE TREE LIMBS BLOWN DOWN IN
            THE PLAZA AREA.

&&

LANE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 8:07 PM EDTFlash Flood WarningGSPYork3 hr
Aug 7, 8:21 PM EDTSpecial Weather StatementGSPYork39 min
Aug 7, 9:18 PM EDTAreal Flood AdvisoryGSPChester, York2 hr
Aug 8, 12:17 AM EDTSpecial Weather StatementGSPPickens88 min
Aug 8, 1:58 PM EDTSevere Thunderstorm WarningGSPOconee, Pickens62 min
Aug 8, 2:13 PM EDTSpecial Weather StatementGSPGreenville47 min
Aug 8, 3:04 PM EDTSevere Thunderstorm WarningGSPOconee41 min
Aug 8, 3:09 PM EDTSpecial Weather StatementGSPPickens36 min
Aug 8, 3:20 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Pickens55 min
Aug 8, 3:50 PM EDTSevere Thunderstorm WarningGSPCherokee, York55 min
Aug 8, 4:09 PM EDTSpecial Weather StatementGSPOconee36 min
Aug 8, 4:38 PM EDTSevere Thunderstorm WarningGSPCherokee, York67 min
Aug 8, 6:04 PM EDTSpecial Weather StatementGSPChester26 min
Aug 8, 6:19 PM EDTSevere Thunderstorm WarningGSPChester, Union56 min
Aug 8, 6:32 PM EDTSevere Thunderstorm WarningGSPLaurens, Union58 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.