Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 487, NWS Greenville-Spartanburg, SC

July 27, 2012Greenwood County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 27, 2012, 8:20 PM EDT for Greenwood County, South Carolina. It was in force for 55 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
Jul 27, 2012, 8:20 PM EDT (00:20 UTC)
Expired
Jul 27, 2012, 9:15 PM EDT
In force
55 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

County Greenwood County, SC

The radar

The Columbia radar (KCAE), 91 km from the middle of the area, began a volume at 00:22 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, 8:27 PM EDTTSTM WND DMG7 Ese Greenwood, SCLARGE LIMBS DOWN IN NINETY-SIX NATIONAL HISTORIC SITE.

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 7 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 0.3 hours before the alert went out and 233 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2012-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3551 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, Charleston AFB, SC at 00:00Z on 2012-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
3551 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
763 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-26 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.

418 
WUUS52 KGSP 280020
SVRGSP
SCC047-280115-
/O.NEW.KGSP.SV.W.0487.120728T0020Z-120728T0115Z/

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

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN GREENWOOD COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 915 PM EDT

* AT 816 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
  NINETY SIX...OR 8 MILES SOUTHEAST OF GREENWOOD...AND MOVING
  SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHERN
  GREENWOOD COUNTY.

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.

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 3396 8205 3398 8205 3398 8216 3397 8219
      3398 8222 3401 8225 3410 8228 3417 8224
      3426 8204 3419 8191 3413 8187 3395 8202
TIME...MOT...LOC 0020Z 299DEG 14KT 3412 8201

$$

ARK
2 follow-up statements
501 
WWUS52 KGSP 280051
SVSGSP

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

SCC047-280115-
/O.CON.KGSP.SV.W.0487.000000T0000Z-120728T0115Z/
GREENWOOD SC-
851 PM EDT FRI JUL 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR GREENWOOD
COUNTY UNTIL 915 PM EDT...

AT 846 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
GREENWOOD...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  GREENWOOD...CALLISON...NINETY SIX AND DYSON.

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.

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 3396 8205 3398 8205 3398 8216 3397 8219
      3398 8222 3401 8225 3410 8228 3417 8224
      3426 8204 3419 8191 3413 8187 3395 8202
TIME...MOT...LOC 0051Z 291DEG 17KT 3416 8217

$$

ARK
165 
WWUS52 KGSP 280106
SVSGSP

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

SCC047-280116-
/O.EXP.KGSP.SV.W.0487.000000T0000Z-120728T0115Z/
GREENWOOD SC-
906 PM EDT FRI JUL 27 2012

...THE SEVERE THUNDERSTORM WARNING FOR GREENWOOD COUNTY WILL EXPIRE
AT 915 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 3396 8205 3398 8205 3398 8216 3397 8219
      3398 8222 3401 8225 3410 8228 3417 8224
      3426 8204 3419 8191 3413 8187 3395 8202
TIME...MOT...LOC 0106Z 291DEG 17KT 3413 8209

$$

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, 7:52 PM EDT, 28 minutes earlier.

Area forecast discussion, Jul 27, 7:52 PM EDT, 28 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
752 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 750 PM...TSTMS ARE EXITING THE FORECAST AREA TO THE EAST.
HOWEVER...NEW STORMS HAVE BEGUN TO DEVELOP ALONG THE TRAILING
OUTFLOW BNDRY OVER THE THE WESTERN AND SOUTHERN UPSTATE AND NE GA.
WEAK CONVERGENCE WILL CONTINUE IN THIS REGION AND SCT TO ISOLATED
CONVECTION IS POSSIBLE IN THIS AREA FOR THE NEXT COUPLE HOURS. BY
LATE EVENING THEY SHOULD DISSIPATE AS THERE ISN/T MUCH SUPPORT FOR
THE STORMS OUTSIDE OF DAYTIME HEATING.

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 PRIMARILY 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 HAND 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 ADVISORY 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 /00Z SATURDAY THROUGH WEDNESDAY/...
AT KCLT...A LINE OF TSTMS ABOUT 30 MI E OF THE AIRFIELD WILL
CONTINUE TO SLOWLY MOVE TO THE EAST. OTHER THAN A FEW LIGHT SHRA
WHICH SHOULD END BY THE START PERIOD OF THE 00 UTC TAF...THE NIGHT
SHOULD BE QUIET. A WEAK TROF WILL REMAIN OVER THE WESTERN PIEDMONT
THROUGH THE NIGHT. THIS SHOULD RESULT IN WINDS THAT ARE LIGHT AND
VARIABLE. WINDS WILL BE WSW MOST OF THE DAY ON SAT...THOUGH THEY MAY
VEER TO NW FOR A FEW HOURS IN THE MORNING. SCT TSTMS ARE A GOOD BET
IN THE AFTN AS A WEAK COLD FRONT MOVES INTO THE MTNS.

ELSEWHERE...KAND MAY SEE A TSTM OVER THE NEXT COUPLE HOURS.
OTHERWISE...NOT EXPECTING ANY CONVECTION AT THE AIRFIELDS OVERNIGHT.
KAVL HAD ENOUGH RAIN TODAY TO YIELD VALLEY FOG OVERNIGHT AND LIFR
CONDITIONS HAVE BEEN MAINTAINED THERE LATE. THERE WASN/T MUCH
RAIN AT KHKY...AND I HAVE NOT GONE AS PESSIMISTIC AS THE PREVIOUS
TAF.

A WEAK TROF WILL REMAIN OVER THE REGION TONIGHT. WINDS AT THE NC
SITES WILL HAVE A LIGHT NW COMPONENT WHILE THEY WILL BE SW OR JUST
LIGHT AND VARIABLE OVER THE UPSTATE. WINDS WILL BE W TO SW ON
SATURDAY FOR THE MOST PART. SCT TSTMS ARE EXPECTED TO DEVELOP OVER
THE MTNS EARLY IN THE AFTN AND THEN SLOWLY SPREAD EAST DURING THE
AFTN HOURS. VCTS HAS BEEN USED TO REFLECT THESE CONVECTIVE TRENDS.

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...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...CSH
NEAR TERM...MCAVOY
SHORT TERM...JAT
LONG TERM...CSH
AVIATION...MCAVOY
Hazardous weather outlook, Jul 27, 6:21 AM EDT, 13 hours 59 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, 6:36 PM EDT, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
636 PM EDT FRI JUL 27 2012

NCZ057-272315-
ROWAN-
636 PM EDT FRI JUL 27 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ROWAN COUNTY
THROUGH 715 PM EDT...

AT 634 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR RICHFIELD...OR 8 MILES NORTH OF ALBEMARLE...
MOVING EAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO GOLD HILL.

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 3550 8035 3553 8037 3559 8021 3558 8020
      3555 8020 3552 8018 3550 8018

07
Local storm report, Jul 27, 6:46 PM EDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
646 PM EDT FRI JUL 27 2012

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

0452 PM     TSTM WND DMG     4 N TAYLORSVILLE        35.98N 81.18W
07/27/2012                   ALEXANDER          NC   FIRE DEPT/RESCUE

            TWO TREES DOWN NEAR THE INTERSECTION OF VASHTI ROAD AND
            HIGHWAY 16 ALONG WITH 3 LARGE LIMBS DOWN ON A NEARBY
            RESIDENCE.

0536 PM     TSTM WND DMG     3 SW YORK               34.96N 81.27W
07/27/2012                   YORK               SC   911 CALL CENTER

            TREES DOWN IN THE SHARON AND YORK AREA.

0614 PM     TSTM WND DMG     FORT MILL               35.01N 80.94W
07/27/2012                   YORK               SC   911 CALL CENTER

            TREES DOWN AROUND FORT MILL.

&&

OUTLAW
Special weather statement, Jul 27, 6:49 PM EDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
649 PM EDT FRI JUL 27 2012

NCZ072-272315-
CABARRUS-
649 PM EDT FRI JUL 27 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CABARRUS COUNTY
THROUGH 715 PM EDT...

AT 646 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MIDLAND...OR 12 MILES SOUTHEAST OF
CONCORD...MOVING NORTHEAST AT 20 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO MIDLAND.

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 3528 8043 3521 8048 3519 8050 3519 8052
      3524 8061 3530 8065 3545 8033 3544 8033

07
Local storm report, Jul 27, 7:23 PM EDT, 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
723 PM EDT FRI JUL 27 2012

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

0540 PM     TSTM WND DMG     MOORESVILLE             35.58N 80.81W
07/27/2012                   IREDELL            NC   PUBLIC

            TREES DOWN IN THE VICINITY OF MOORESVILLE.

0630 PM     TSTM WND DMG     KANNAPOLIS              35.49N 80.62W
07/27/2012                   CABARRUS           NC   LAW ENFORCEMENT

            A FEW LOCATIONS WITH POWERLINES DOWN AND AT LEAST TWO OF
            THOSE WITH LIMBS BRINGING THE POWERLINES DOWN.

&&

OUTLAW
Special weather statement, Jul 27, 7:41 PM EDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
741 PM EDT FRI JUL 27 2012

SCZ011-012-019-280030-
ABBEVILLE-GREENWOOD-LAURENS-
741 PM EDT FRI JUL 27 2012

...STRONG THUNDERSTORMS WILL AFFECT GREENWOOD...NORTHERN ABBEVILLE
AND SOUTHERN LAURENS COUNTIES THROUGH 830 PM EDT...

AT 737 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NINETY SIX TO
ANTREVILLE...MOVING EAST AT 15 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  DUE WEST...
  COKESBURY...

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

LAT...LON 3427 8263 3442 8241 3448 8228 3431 8187
      3420 8194 3418 8190 3413 8187 3410 8189
      3407 8210

ARK
Local storm report, Jul 27, 8:18 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
818 PM EDT FRI JUL 27 2012

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

0625 PM     TSTM WND DMG     GREENWOOD               34.19N 82.15W
07/27/2012                   GREENWOOD          SC   LAW ENFORCEMENT

            ONE TREE DOWN ON OAK RIDGE DRIVE AND ANOTHER AT THE
            INTERSECTION OF PANOLA AVENUE AND SOUTH MAIN STREET.

&&

OUTLAW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 9:13 PM EDTSevere Thunderstorm WarningGSPGreenville47 min
Jul 27, 9:51 PM EDTSpecial Weather StatementGSPSpartanburg39 min
Jul 27, 10:50 PM EDTSpecial Weather StatementGSPSpartanburg40 min
Jul 28, 1:04 AM EDTSpecial Weather StatementGSPChester26 min
Jul 28, 3:59 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg46 min
Jul 28, 6:02 PM EDTSpecial Weather StatementGSPSpartanburg28 min
Jul 28, 7:31 PM EDTSpecial Weather StatementGSPChester44 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.