Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 478, NWS Greenville-Spartanburg, SC

July 27, 20126 counties in South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 27, 2012, 5:06 PM EDT for 6 counties in South Carolina. It was in force for 54 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
Jul 27, 2012, 5:06 PM EDT (21:06 UTC)
Expired
Jul 27, 2012, 6:00 PM EDT
In force
54 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Cherokee County, SC, Chester County, SC, Laurens County, SC, Spartanburg County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 76 km from the middle of the area, began a volume at 21:08 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
Jul 27, 5:22 PM EDTTSTM WND DMG6 Wsw Cross Keys, SCTREE IN ROADWAY AND LARGE LIMBS DOWN IN MUSGROVE MILL ST PK.
Jul 27, 5:36 PM EDTTSTM WND DMG3 Sw York, SCTREES DOWN IN THE SHARON AND YORK AREA.

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 16 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 12:00Z, 9.1 hours before the alert went out and 203 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 12:00Z on 2012-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1258 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 12:00Z on 2012-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -92 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
1258 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1293 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-92 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

891 
WUUS52 KGSP 272106
SVRGSP
SCC021-023-059-083-087-091-272200-
/O.NEW.KGSP.SV.W.0478.120727T2106Z-120727T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
506 PM EDT FRI JUL 27 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEROKEE COUNTY IN UPSTATE SOUTH CAROLINA...
  WESTERN CHESTER COUNTY IN UPSTATE SOUTH CAROLINA...
  EAST CENTRAL LAURENS COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHEASTERN SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...
  UNION COUNTY IN UPSTATE SOUTH CAROLINA...
  YORK COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 600 PM EDT

* AT 504 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 BLACKSBURG TO 7 MILES NORTHEAST
  OF JONESVILLE TO ENOREE...AND MOVING SOUTHEAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  HICKORY GROVE AND BUFFALO.
  UNION AND CROSS KEYS.
  LOCKHART.
  YORK.
  SANTUC.
  MCCONNELLS AND LOWRYS.
  CARLISLE AND CHESTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS ARE CAPABLE OF BLOWING 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 3444 8154 3452 8162 3446 8170 3452 8192
      3497 8173 3518 8160 3514 8105 3511 8104
      3509 8106 3505 8104 3467 8110 3455 8128
      3456 8141 3450 8141 3448 8149
TIME...MOT...LOC 2106Z 296DEG 23KT 3507 8154 3492 8160
          3468 8198

$$

ARK
1 follow-up statement
636 
WWUS52 KGSP 272142
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
542 PM EDT FRI JUL 27 2012

SCC021-083-272152-
/O.CAN.KGSP.SV.W.0478.000000T0000Z-120727T2200Z/
CHEROKEE SC-SPARTANBURG SC-
542 PM EDT FRI JUL 27 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SPARTANBURG AND
CHEROKEE COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED SOUTHEAST 
OUT OF THESE COUNTIES.

LAT...LON 3452 8162 3448 8169 3456 8190 3459 8189
      3459 8186 3466 8183 3484 8154 3487 8149
      3484 8146 3490 8148 3511 8139 3506 8106
      3475 8117 3456 8139 3456 8142 3445 8153
TIME...MOT...LOC 2142Z 296DEG 19KT 3498 8132 3483 8138
          3459 8176

$$

SCC023-059-087-091-272200-
/O.CON.KGSP.SV.W.0478.000000T0000Z-120727T2200Z/
CHESTER SC-LAURENS SC-YORK SC-UNION SC-
542 PM EDT FRI JUL 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR UNION...
WESTERN YORK...EAST CENTRAL LAURENS AND WESTERN CHESTER COUNTIES IN
UPSTATE SOUTH CAROLINA UNTIL 600 PM EDT...

AT 541 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 HICKORY GROVE TO 5 MILES
NORTHEAST OF LOCKHART TO CROSS KEYS...MOVING SOUTHEAST AT 20 MPH.

SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  YORK.
  SANTUC...MCCONNELLS...LOWRYS AND CARLISLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS ARE CAPABLE OF BLOWING 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 3452 8162 3448 8169 3456 8190 3459 8189
      3459 8186 3466 8183 3484 8154 3487 8149
      3484 8146 3490 8148 3511 8139 3506 8106
      3475 8117 3456 8139 3456 8142 3445 8153
TIME...MOT...LOC 2142Z 296DEG 19KT 3498 8132 3483 8138
          3459 8176

$$

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 Jul 27, 2:29 PM EDT, 2 hours 37 minutes earlier.

Area forecast discussion, Jul 27, 2:29 PM EDT, 2 hours 37 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
229 PM EDT FRI JUL 27 2012

.SYNOPSIS...
A WEAK COOL FRONT WILL SLOWLY SETTLE SOUTHEAST ACROSS THE REGION
THROUGH THE WEEKEND BEFORE GRADUALLY DISSIPATING. ANOTHER WEAK FRONT
IS EXPECTED TO APPROACH THE REGION BY THE MIDDLE OF NEXT WEEK.

&&

.NEAR TERM /THROUGH SATURDAY/...
AS OF 230 PM...SCATTERED STRONG THUNDERSTORMS HAVE FIRED AS
ANTICIPATED AND EXPECT THEY WILL BECOME NUMEROUS IN THE MID TO
LATE AFTERNOON HOURS ACROSS THE NORTHERN TIER. UPPER VORT MAX
MOVING ACROSS UPSTATE SC AND GENERALLY LOWERING HEIGHTS ALOFT
DRIVING THE CONVECTION. IN REGARD TO THE SEVERE THREAT...THE MID
LEVEL FLOW WILL BE MUCH BETTER TO THE N OF OUR AREA THIS
AFTN...BUT 500 MB WINDS COULD APPROACH 25 KT ACROSS THE FAR NRN
TIER WHICH WOULD SUPPORT A MULTICELL MODE THERE. FARTHER TO THE
SOUTH...THE STRONGLY HEATED BOUNDARY LAYER WILL PRODUCE CAPES OF
1500-2000J WHICH WILL SUPPORT A PULSE SEVERE THREAT PRIMARLY FOR
WET MICROBURSTS.

EXPECT CONVECTION TO WANE QUICKLY AFTER 00Z AS WEAK NVA SETTLES IN
BEHIND THE VORT. HOWEVER...A WEAK AREA OF CONVERGENCE OVER THE
EASTERN UPSTATE MAY ALLOW A COUPLE ISOLATED STORMS TO HANG ON
THERE INTO THE LATE EVENING PER NAM/GFM RESPONSE THAT AREA.

EXPECT GENERALLY A QUIET OVERNIGHT PERIOD WITH DISSIPATING DEBRIS
CLOUDS AND SOME MOUNTAIN VALLEY FOG LATE. A BLEND OF BIAS CORRECTED
MOS INDICATES THAT MIN TEMPS SHOULD BE ABOUT A CATEGORY LOWER THAN
LAST NIGHT...BUT STILL ABOVE AVERAGE.

ON SAT...THE MORNING SHOULD BE GENERALLY QUIET. HOWEVER...DURING THE
AFTERNOON A SECONDARY COLD FRONT WILL CROSS THE AREA FROM NW TO SE.
THIS FRONT WILL BE DRIVEN BY A RATHER IMPRESSIVE SHORT WAVE FOR MID
SUMMER IN THE DEEP SOUTH. HENCE...EXPECT CONVECTIVE DEVELOPMENT
DURING THE MID/LATE AFTERNOON HOURS WITH BEST COVERAGE FROM THE NC
FOOTHILLS ACROSS THE NC PIEDMONT...BUT EXTENDING WEST INTO THE
EASTERN UPSTATE OF SC. SOUNDINGS INDICATE SOME DRY AIR ALOFT SO A
DAMAGING WIND THREAT WILL BE PRESENT AS WELL. MAX TEMPS ON SAT SHOULD
BE ABOUT A CATEGORY LOWER THAN TODAY BASED ON A MOS BLEND. SO NO
HEAT ADVIORY NECESSARY ON SAT ALTHOUGH IT WILL REMAIN HOT AND ABOVE
AVERAGE.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
AT 200 PM EDT FRIDAY...AN UPPER TROUGH WILL REMAIN ALONG THE EAST
COAST FROM SATURDAY NIGHT THROUGH MONDAY. A SHORTWAVE WILL EXIT THE
BASE OF THE TROUGH ON SATURDAY NIGHT...AND ANOTHER WILL MOVE INTO
THE THE TROUGH ON SUNDAY. THE REMAINS OF A FRONT WILL BE LOCATED
JUST SOUTHEAST OF OUR AREA ON SUNDAY...AND DEW POINTS SLIGHTLY BELOW
NORMAL ARE EXPECTED. MODEL TIME HEIGHTS SUGGEST A LINGERING MOIST
LAYER BETWEEN 850 AND 700 MB...WITH WEAK UPWARD VERTICAL MOTION
PRESENT. CHANCE POPS WILL BE CARRIED ON SUNDAY... FAVORING THE
MOUNTAINS FOR OROGRAPHIC EFFECTS...AND THE PIEDMONT WHICH WILL BE
CLOSER TO THE FRONT AND BETTER MOISTURE. NAM SOUNDINGS APPEAR
FAVORABLE FOR SEVERE WEATHER...WITH INSTABILITY AND MODEST LOW LEVEL
SHEAR. GFS SOUNDING ARE CHARACTERISTICALLY LESS UNSTABLE....AND ALSO
HAVE LESS SHEAR. TEMPERATURES WILL BE NEAR NORMAL.

ON SUNDAY NIGHT THE SECOND SHORTWAVE ROUNDS THE BASE OF THE
TROUGH... AND ON MONDAY IT EXITS THE AREA. THE OLD SURFACE BOUNDARY
REMAINS JUST OFF TO OUR EAST...AND THE 850 TO 700 MB LAYER REMAINS
MOIST. WITH NO APPARENT UPPER LEVEL FORCING...ONLY VERY SMALL POPS
WILL BE CARRIED IN AN AIR MASS THAT REMAINS UNSTABLE...WITH SURFACE
DEW POINTS RECOVERING TO NEAR NORMAL VALUES.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
AS OF 1215 PM FRIDAY...MEDIUM RANGE MODELS ARE CONTINUING TO
ADVERTISE THE POTENTIAL FOR ENERGY ROTATING INTO THE REGION ON
TUESDAY WITHIN THE BASE OF LINGERING EASTERN CONUS L/WV TROUGH.
GIVEN THE UNSETTLED LOOK OF THE LARGE SCALE PATTERN...SOLID CHANCE
POP WILL BE NUDGED UPWARD. INTO WEDNESDAY...THERE LOOKS TO BE LITTLE
CHANGE IN THE MEAN PATTERN AND ASSOCIATED SENSIBLE WX...DIURNALLY
ENHANCED TSTM CHANCES. DAILY TEMPERATURES WILL CONTINUE TO BE WITHIN
A FEW DEGREES OF CLIMO. I WOULD EXPECT ABOVE CLIMO TSTM CHANCES TO
CONTINUE INTO THURSDAY AS WELL GIVEN THE ONLY NOMINAL CHANGE TO THE
PATTERN ACRS THE EASTERN CONUS. THE LATEST ECMWF IS HINTING AT A
TRANSITION TOWARD A WEAKER/DEAMPLIFYING FLOW REGIME BY THE END OF
PERIOD. NEW DAY 7 POPS WILL FEATURE SLIGHT AND/OR SMALL DIURNAL
TSTM CHANCES AND TEMPERATURES NEAR PERSISTENCE.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
AT KCLT...TIMING OF CONVECTION AT THE AIRPORT IS MAIN PROBLEM.
LATEST LOCAL WRF RUN SEEMS TO BE CAPTURING CONVECTIVE TRENDS AND IT
SUGGESTS THUNDERSTORMS AROUND 20Z FOR THE AIRFIELD. HENCE...WILL RUN
A TEMPO FOR TSRA FROM 20-22Z AND THEN A VCSH TIL AROUND 00Z. EXPECT
AFTER 00Z ONLY SOME CONVECTIVE DEBRIS CLOUDS. IF SUBSTANTIAL RAIN
OCCURS AT THE AIRFIELD...CAN'T RULE OUT SOME MVFR TYPE FOG EARLY ON
SAT...BUT FOR NOW HAVE NOT INTRODUCED THAT. ON SAT...THE MORNING
SHOULD BE QUIET WITH CONVECTION ARRIVING AFTER THIS TAF TIMEFRAME.

ELSEWHERE...SCATTERED TO NUMEROUS THUNDERSTORMS THIS AFTERNOON
ACROSS THE AREA TRIGGERED BY AN UPPER AIR DISTURBANCE.
HENCE...EXPECT ALL AIRFIELDS TO BE AFFECTED IN APPROXIMATELY 19Z-23Z
TIMEFRAME. EXPECT CONVECTION TO WANE QUICKLY AFTER 00Z AS TROUGH
MOVES TO THE EAAT. EXPECT SOME IFR/LIFR MOUNTAIN VALLEY FOG AND
AROUND KHKY AS EXPECT MOST AREAS TO HAVE SOME RAINFALL. CONVECTION
ON SAT SHOULD BE AFTER THIS TAF PERIOD.

OUTLOOK...A DAILY CHANCE OF SCT AFTERNOON CONVECTION WILL THEN
CONTINUE INTO THE MIDDLE OF NEXT WEEK AS AN UPPER TROF REMAINS OVER
THE AREA.

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...HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR GAZ029.
NC...HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR NCZ071-072-082.
SC...HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR SCZ009-011>014-
     019.

&&

SYNOPSIS...CSH
NEAR TERM...LG
SHORT TERM...JAT
LONG TERM...CSH
AVIATION...LG
Hazardous weather outlook, Jul 27, 6:21 AM EDT, 10 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
621 AM EDT FRI JUL 27 2012

GAZ018-026-028-NCZ036-037-057-068>070-508-510-SCZ001>008-010-281030-
STEPHENS-FRANKLIN-HART-IREDELL-DAVIE-ROWAN-CLEVELAND-LINCOLN-GASTON-
GREATER RUTHERFORD-EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-ANDERSON-
621 AM EDT FRI JUL 27 2012

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

.DAY ONE...TODAY AND TONIGHT.

A WARM AND HUMID AIR MASS WILL REMAIN IN PLACE ACROSS THE AREA
TODAY. HEAT INDEX VALUES ARE EXPECTED TO RANGE BETWEEN 100 AND 104
ACROSS MUCH OF THE PIEDMONT...AS WELL AS PORTIONS OF THE FOOTHILLS
OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA.

THE ATMOSPHERE WILL ALSO BECOME QUITE UNSTABLE THIS AFTERNOON...
AND COVERAGE OF SHOWERS AND THUNDERSTORMS SHOULD INCREASE AS A
WEAK COLD FRONT APPROACHES FROM THE WEST. A FEW OF THESE STORMS
WILL LIKELY BECOME SEVERE...WITH LOCALIZED DAMAGING WINDS BEING
THE PRIMARY THREAT. SOME OF THE STRONGER STORMS MAY ALSO PRODUCE A
BRIEF PERIOD OF LARGE HAIL. HEAVY RAIN AND FREQUENT CLOUD TO
GROUND LIGHTNING CAN OCCUR WITH ANY THUNDERSTORM.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

GAZ029-NCZ071-072-082-SCZ009-011>014-019-281030-
ELBERT-MECKLENBURG-CABARRUS-UNION NC-YORK-ABBEVILLE-LAURENS-UNION SC-
CHESTER-GREENWOOD-
621 AM EDT FRI JUL 27 2012

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

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

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY.

THE ATMOSPHERE WILL BECOME QUITE UNSTABLE ACROSS SOUTHERN PIEDMONT
AREAS THIS AFTERNOON...AND COVERAGE OF SHOWERS AND THUNDERSTORMS
SHOULD INCREASE AS A WEAK COLD FRONT APPROACHES FROM THE WEST. A
FEW OF THESE STORMS WILL LIKELY BECOME SEVERE...WITH LOCALIZED
DAMAGING WINDS BEING THE PRIMARY THREAT. SOME OF THE STRONGER
STORMS MAY ALSO PRODUCE A BRIEF PERIOD OF LARGE HAIL. HEAVY RAIN
AND FREQUENT CLOUD TO GROUND LIGHTNING CAN OCCUR WITH ANY
THUNDERSTORM.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

GAZ010-017-NCZ033-035-048>053-056-058-059-062>065-501>507-509-281030-
RABUN-HABERSHAM-AVERY-ALEXANDER-MADISON-YANCEY-MITCHELL-SWAIN-
HAYWOOD-BUNCOMBE-CATAWBA-GRAHAM-NORTHERN JACKSON-MACON-
SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-CALDWELL MOUNTAINS-
GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS-
EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-POLK MOUNTAINS-
621 AM EDT FRI JUL 27 2012

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

.DAY ONE...TODAY AND TONIGHT.

THE ATMOSPHERE WILL BECOME QUITE UNSTABLE ACROSS THE MOUNTAINS AND
NORTHERN FOOTHILLS THIS AFTERNOON...AND COVERAGE OF SHOWERS AND
THUNDERSTORMS SHOULD INCREASE AS A WEAK COLD FRONT APPROACHES FROM
THE WEST. A FEW OF THESE STORMS WILL LIKELY BECOME SEVERE...WITH
LOCALIZED DAMAGING WINDS BEING THE PRIMARY THREAT. SOME OF THE
STRONGER STORMS MAY ALSO PRODUCE A BRIEF PERIOD OF LARGE HAIL.
HEAVY RAIN AND FREQUENT CLOUD TO GROUND LIGHTNING CAN OCCUR WITH
ANY THUNDERSTORM.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.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, Jul 27, 4:31 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
431 PM EDT FRI JUL 27 2012

NCZ035-036-502-272115-
ALEXANDER-GREATER CALDWELL-IREDELL-
431 PM EDT FRI JUL 27 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN CALDWELL...NORTHERN
ALEXANDER AND NORTHWESTERN IREDELL COUNTIES THROUGH 515 PM EDT...

AT 428 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES EAST OF KINGS CREEK...OR 6 MILES
SOUTHWEST OF BOOMER...MOVING EAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO KINGS
  CREEK...TAYLORSVILLE...LOVE VALLEY...HIDDENITE AND ELLENDALE.

SMALL HAIL...WIND GUSTS OF 40 TO 50 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 3600 8132 3603 8127 3604 8121 3603 8107
      3606 8102 3606 8094 3589 8094 3591 8142
      3606 8142 3607 8140

07
Special weather statement, Jul 27, 4:54 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
454 PM EDT FRI JUL 27 2012

GAZ028-029-SCZ010-011-019-272130-
ABBEVILLE-ANDERSON-ELBERT-GREENWOOD-HART-
454 PM EDT FRI JUL 27 2012

...STRONG THUNDERSTORMS WILL AFFECT ABBEVILLE...NORTHERN ELBERT...
NORTHWESTERN GREENWOOD...SOUTHEASTERN HART AND SOUTHERN ANDERSON
COUNTIES THROUGH 530 PM EDT...

AT 452 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES SOUTHWEST OF
BELTON TO 5 MILES EAST OF NUBERG...MOVING SOUTHEAST AT 25 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  RUCKERSVILLE...
  HONEA PATH...
  LAKE RUSSELL...
  LOWNDESVILLE...
  DUE WEST...
  WARE SHOALS...

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

LAT...LON 3424 8307 3457 8252 3448 8231 3436 8218
      3407 8263

ARK
Local storm report, Jul 27, 4:55 PM EDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
455 PM EDT FRI JUL 27 2012

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

0344 PM     TSTM WND DMG     4 WNW COLUMBUS          35.27N 82.27W
07/27/2012                   POLK               NC   911 CALL CENTER

            TREES DOWN ON HOLBERT COVE ROAD.

&&

MCAVOY
Local storm report, Jul 27, 4:59 PM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
459 PM EDT FRI JUL 27 2012

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

0412 PM     TSTM WND DMG     9 ESE COLUMBUS          35.22N 82.05W
07/27/2012                   POLK               NC   911 CALL CENTER

            TREES DOWN IN THREE LOCATIONS IN THE GREEN CREEK
            COMMUNITY.

&&

MCAVOY
Special weather statement, Jul 27, 5:00 PM EDT, 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
500 PM EDT FRI JUL 27 2012

NCZ036-056-057-272145-
CATAWBA-IREDELL-ROWAN-
500 PM EDT FRI JUL 27 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CATAWBA...SOUTHERN
IREDELL AND SOUTHWESTERN ROWAN COUNTIES THROUGH 545 PM EDT...

AT 456 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES WEST OF TERRELL...OR 11 MILES SOUTHEAST
OF NEWTON...MOVING EAST AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  TERRELL...
  TROUTMAN...
  MOORESVILLE...

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

LAT...LON 3551 8091 3550 8093 3550 8096 3553 8096
      3553 8094 3555 8096 3556 8113 3569 8113
      3572 8057 3550 8058

07
Local storm report, Jul 27, 5:05 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
505 PM EDT FRI JUL 27 2012

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

0352 PM     TSTM WND DMG     1 S LIBERTY             34.78N 82.70W
07/27/2012                   PICKENS            SC   FIRE DEPT/RESCUE

            A TREE WAS BLOWN DOWN BRINGING DOWN 2 POWER POLES.

0339 PM     TSTM WND DMG     SIX MILE                34.81N 82.82W
07/27/2012                   PICKENS            SC   LAW ENFORCEMENT

            A FEW TREES DOWN IN THE SIX MILE AREA.

&&

OUTLAW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 1:20 PM EDTSpecial Weather StatementGSPGreenwood25 min
Jul 27, 1:52 PM EDTSpecial Weather StatementGSPAbbeville38 min
Jul 27, 2:20 PM EDTSpecial Weather StatementGSPOconee40 min
Jul 27, 2:32 PM EDTSpecial Weather StatementGSPLaurens43 min
Jul 27, 2:52 PM EDTSevere Thunderstorm WarningGSPGreenville, Pickens53 min
Jul 27, 3:31 PM EDTSpecial Weather StatementGSPGreenville29 min
Jul 27, 3:33 PM EDTSpecial Weather StatementGSPPickens42 min
Jul 27, 3:39 PM EDTSevere Thunderstorm WarningGSPAnderson, Oconee, Pickens50 min
Jul 27, 4:12 PM EDTSpecial Weather StatementGSPSpartanburg48 min
Jul 27, 4:19 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg, Union56 min
Jul 27, 4:24 PM EDTSpecial Weather StatementGSPGreenville51 min
Jul 27, 4:32 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens, Spartanburg, Union58 min
Jul 27, 4:54 PM EDTSpecial Weather StatementGSPAbbeville36 min
Jul 27, 5:40 PM EDTSpecial Weather StatementGSPAbbeville, Laurens35 min
Jul 27, 5:51 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens54 min
Jul 27, 5:53 PM EDTSevere Thunderstorm WarningGSPChester, Union, York51 min
Jul 27, 6:41 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens64 min
Jul 27, 7:14 PM EDTSevere Thunderstorm WarningGSPOconee, Pickens44 min
Jul 27, 7:41 PM EDTSpecial Weather StatementGSPAbbeville, Greenwood49 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.