Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 230, NWS Greenville-Spartanburg, SC

June 23, 2012Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 23, 2012, 10:04 PM EDT for Union County, North Carolina. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2012, 10:04 PM EDT (02:04 UTC)
Expired
Jun 23, 2012, 10:45 PM EDT
In force
41 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

County Union County, NC

The radar

The Columbia radar (KCAE), 113 km from the middle of the area, began a volume at 02:06 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.1 hours before the alert went out and 150 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2012-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2012-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
61 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
1676 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
74 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.

684 
WUUS52 KGSP 240204
SVRGSP
NCC179-240245-
/O.NEW.KGSP.SV.W.0230.120624T0204Z-120624T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1004 PM EDT SAT JUN 23 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN UNION COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 1045 PM EDT

* AT 959 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
  WAXHAW...OR 13 MILES EAST OF ROCK HILL...AND MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  WAXHAW.
  MINERAL SPRINGS.
  MONROE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL CAN CAUSE MAJOR PROPERTY DAMAGE...ESPECIALLY TO VEHICLES.
DAMAGING WINDS MAY BLOW 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.

&&

LAT...LON 3482 8080 3485 8080 3494 8079 3498 8083
      3500 8084 3512 8054 3482 8048
TIME...MOT...LOC 0204Z 254DEG 19KT 3494 8078

$$

JOH
2 follow-up statements
822 
WWUS52 KGSP 240230
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1030 PM EDT SAT JUN 23 2012

NCC179-240245-
/O.CON.KGSP.SV.W.0230.000000T0000Z-120624T0245Z/
UNION NC-
1030 PM EDT SAT JUN 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN UNION
COUNTY IN THE PIEDMONT OF NORTH CAROLINA UNTIL 1045 PM EDT...

AT 1028 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
MINERAL SPRINGS...OR 5 MILES WEST OF MONROE...MOVING EAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  MONROE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DAMAGING WINDS AND HAIL THE SIZE OF ****EDIT SIZE**** ARE BEING
REPORTED WITH THIS STORM. SEEK SHELTER INSIDE AN INTERIOR ROOM.

LARGE HAIL CAN CAUSE MAJOR PROPERTY DAMAGE...ESPECIALLY TO VEHICLES.
DAMAGING WINDS MAY BLOW 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.

&&

LAT...LON 3512 8054 3482 8048 3482 8080 3485 8080
      3494 8079 3496 8081 3500 8084 3506 8069
TIME...MOT...LOC 0229Z 254DEG 19KT 3497 8062

$$

JOH
009 
WWUS52 KGSP 240241
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1041 PM EDT SAT JUN 23 2012

NCC179-240251-
/O.EXP.KGSP.SV.W.0230.000000T0000Z-120624T0245Z/
UNION NC-
1041 PM EDT SAT JUN 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN UNION COUNTY IN THE
PIEDMONT OF NORTH CAROLINA WILL EXPIRE AT 1045 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LEVELS.  HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3512 8054 3482 8048 3482 8080 3485 8080
      3494 8079 3496 8081 3500 8084 3506 8069
TIME...MOT...LOC 0241Z 254DEG 19KT 3499 8054

$$

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 Jun 23, 7:49 PM EDT, 2 hours 15 minutes earlier.

Area forecast discussion, Jun 23, 7:49 PM EDT, 2 hours 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
749 PM EDT SAT JUN 23 2012

.SYNOPSIS...
A WEAK COLD FRONT STALLED ACROSS THE REGION WILL DISSIPATE
OVERNIGHT. MEANWHILE A UPPER LEVEL DISTURBANCE WILL CROSS THE
NORTHERN TIER OF THE FORECAST AREA ON SUNDAY...WITH ANOTHER COLD
FRONT ARRIVING FROM THE NORTHWEST LATE MONDAY. DRIER HIGH PRESSURE
WILL BUILD IN BEHIND THE FRONT TUESDAY THROUGH THE REST OF THE WEEK.

&&

.NEAR TERM /THROUGH SUNDAY/...
AS OF 745 PM...SCT CONVECTION ONGOING OVER THE UPSTATE WITH ISOLATED
ELSEWHERE. HAVE UPDATED TO KEEP POP IN A LITTLE LONGER ACROSS THE
AREA. ADDED FOG FOR MUCH OF THE AREA OVERNIGHT AS WELL. MAIN CHANGES
WERE FOR CURRENT CONDITIONS.

AS OF 430 PM...UPDATED FORECAST FOR CURRENT CONDITIONS. BEST CHC OF
CONVECTION WILL BE ALONG THE BLUE RIDGE AND OVER THE UPSTATE/NE GA.
LESS CHC OVER THE NC PIEDMONT AND TN BORDER.

AT 1430 EDT SATURDAY...AN UPPER TROUGH WILL REMAIN ALONG THE EAST
COAST THROUGH SUNDAY...WITH A RIDGE UPSTREAM CENTERED OVER THE
PLAINS. THE MODELS SHOW A WEAK MID LEVEL IMPULSE MOVING INTO THE
TROUGH THIS AFTERNOON...AND A SLIGHTLY STRONGER ONE DOING SO ON
SUNDAY MORNING. MODEL TIME HEIGHTS REMAIN MOIST BETWEEN 850 AND 700
MB...AS THE REMAINS OF A FRONT LINGER IN OUR VICINITY. LOW LEVEL
FLOW IS EXPECTED TO VEER FROM THE NE TO THE E OR SE TONIGHT...BEFORE
VEERING TO S ON SUNDAY. POPS WILL FAVOR THE BLUE RIDGE IN A WEAK
UPSLOPE FLOW BOTH THIS AFTERNOON AND SUNDAY AFTERNOON...BUT WITH AN
EARLIER START SUNDAY THAN TODAY DUE TO THE TIMING OF THE UPPER
IMPULSE. MODEL INSTABILITY IS SHOWN TO BE GREATER TOMORROW THAN
TODAY...WITH LESS CHANCE OF A MID LEVEL CAP. SUBSTANTIAL DRY AIR
WILL BE IN PLACE AT BENEATH THE MOIST LAYER BOTH THIS AFTERNOON AND
SUNDAY AFTERNOON...SUPPORTING EVAPORATIVE COOLING AND DOWNDRAFTS.
MINIMUM TEMPERATURES WILL BE ABOVE NORMAL IN A MOIST AIR MASS WITH
SOME CLOUD COVER. MAXIMUM TEMPERATURES SUNDAY WILL BE ABOVE NORMAL
AS WELL AS THE TROUGH AXIS REMAINS TO OUR EAST.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
AS OF 230 PM SATURDAY...THE SHORT RANGE PERIOD BEGINS SUNDAY EVENING
WITH ONGOING SCATTERED CONVECTION THAT SHOULD LINGER INTO THE
MID/LATE EVENING BEFORE DYING. A CHANCE POP SHOULD COVER THAT
POSSIBILITY. IN THE MEAN TIME...THE UPPER PATTERN WILL CONTINUE AN
AMPLIFYING TREND THROUGH SUNDAY NIGHT AND MONDAY AS AN UPPER LOW
DIVES DOWN THROUGH EASTERN CANADA TO NEW ENGLAND AND AN UPPER
ANTICYCLONE SPINS OVER THE SRN/CENTRAL HIGH PLAINS. THE FLOW ALOFT
WILL VEER AND STRENGTHEN FROM THE NW AND NNW THROUGH MONDAY WHICH
WILL DRIVE A COLD FRONT DOWN FROM THE N IN THE AFTERNOON. UPPER
FORCING LOOKS MINIMAL AND THE MODELS SHOW ONLY RELATIVELY SHALLOW
MOISTURE. HOWEVER...THE AMT OF BUOYANCY SHOWN BY THE MODELS IS
COMPELLING WHEN COMBINED WITH WHAT SHOULD BE GOOD LOW LEVEL FORCING
ALONG THE FRONT IN THE AFTERNOON. THE GUIDANCE WAS DISAPPOINTING
WITH THE MOSGUIDE HAVING A VERY LOW CHANCE AND THE SREF HAVING A
VERY HIGH CHANCE. HAVE SPLIT THE DIFFERENCE WHICH PUTS AREAS ALONG
AND E OF THE BLUE RIDGE IN THE 30-50 PCT RANGE THROUGH THE
AFTERNOON. THE CHANCES GRADUALLY SHIFT S WITH THE BOUNDARY THROUGH
LATE MONDAY NIGHT. ONCE THE BOUNDARY IS THROUGH...DRY AND COOLER
HIGH PRESSURE WILL MOVE IN FOR TUESDAY WITH VERY LOW CHANCE FOR RAIN
AND TEMPS A CATEGORY BELOW MONDAY.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
AS OF 115 PM SATURDAY...THE FIRST PART OF THE MEDIUM RANGE LOOKS TO
BE DOMINATED BY THE UPPER BLOCKING PATTERN WITH A DEEP UPPER LOW
OVER NEW ENGLAND AND A LARGE UPPER ANTICYCLONE OVER THE PLAINS. THE
RESULTING NW FLOW ALOFT SHOULD KEEP US DRY UNDER SURFACE HIGH
PRESSURE FOR WEDNESDAY AND THURSDAY WITH TEMPS GRADUALLY RISING
ABOVE NORMAL. THE PATTERN STARTS TO EVOLVE LATE IN THE WEEK AS THE
WAVELENGTH OF THE RIDGE BROADENS AND ANOTHER UPPER SYSTEM CROSSES
CANADA TO KICK OUT/REPLACE THE EASTERN UPPER LOW. THE FLOW ALOFT
BECOMES INCREASINGLY WNW FOR FRIDAY AND SATURDAY WHICH WILL
CONTRIBUTE DOWNSLOPE EAST OF THE MTNS AND ALLOW TEMPS TO CLIMB WELL
ABOVE NORMAL. HAVE HELD BACK ON TRIPLE DIGIT HIGHS FOR SATURDAY
GIVEN UNCERTAINTY ON DAY 7...SO HPC GUIDANCE WAS CUT BACK BY A
CATEGORY OR SO. THE OTHER RESULT MIGHT BE THAT WE COME A LITTLE MORE
IN ALIGNMENT WITH AN MCS TRACK BY SATURDAY...WHICH IS INDICATED BY
THE GFS BUT NOT THE OLDER ECMWF. WILL ALLOW PRECIP CHANCES TO COME
AROUND TO A CLIMATOLOGICAL DIURNAL THUNDERSTORM TYPE REGIME...BUT
CONFIDENCE NOT PARTICULARLY HIGH. AT ANY RATE...UNLESS THERE IS SOME
MAJOR CHANGE...NONE OF THE SOLUTIONS ARE SUPPORTIVE OF BRINGING ANY
TROPICAL MOISTURE OUR WAY. FOR THE TIME BEING...WE LOOK INSULATED
FROM WHATEVER BECOMES OF THE ACTIVITY IN THE GULF.

&&

.AVIATION /00Z SUNDAY THROUGH THURSDAY/...
AT KCLT...ISOLATED TSRA STILL POSSIBLE EARLY THIS EVENING BUT CHC
RAPIDLY DIMINISHING. LIGHT NELY WIND BECOMES LIGHT SELY THRU THE
EVENING. SINCE RAIN DID NOT FALL AT THE AIRFIELD...WILL KEEP VSBY
VFR OVERNIGHT...BUT CANNOT RULE OUT A BRIEF MVFR VSBY NEAR DAYBREAK.
SCT CONVECTION EXPECTED TO DEVELOP ONCE AGAIN SUNDAY AFTERNOON. HAVE
INCLUDED PROB30 FOR THIS. SLY WIND EXPECTED SUNDAY AFTERNOON.

ELSEWHERE...CONVECTION WILL BE CLOSE ENUF FOR VCTS TO CONTINUE EARLY
THIS EVENING BEFORE DIMINISHING. LIGHT WIND NC AND SWLY WIND SC WILL
BECOME CALM OVERNIGHT. MVFR VSBY LIKELY AT KAVL WITH IFR POSSIBLE SO
INCLUDED IN TAF. MVFR LIKELY AT KGSP WITH EARLIER RAIN...AND
POSSIBLE AT THE NORMALLY FOGGIER KHKY/KAND. KGMU USUALLY THE LEAST
LIKELY FOG AREA...SO NOT INCLUDED THERE FOR NOW. S TO SE WIND
EXPECTED SUNDAY AFTERNOON WITH SCT CONVECTION ONCE AGAIN.

OUTLOOK...AT LEAST SCATTERED DIURNAL CONVECTION WILL CONTINUE OVER
THE AREA EARLY NEXT WEEK...ESP MONDAY...AS ANOTHER WEAK COLD FRONT
DROPS INTO THE AREA. MORNING FOG/STRATUS WILL ALSO BE POSSIBLE...
MAINLY IN THE MTN VALLEYS. DRIER WEATHER IS EXPECTED BY MID-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...PAT
NEAR TERM...JAT/RWH
SHORT TERM...PM
LONG TERM...PM
AVIATION...RWH
Hazardous weather outlook, Jun 23, 4:59 AM EDT, 17 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
459 AM EDT SAT JUN 23 2012

GAZ010-017-018-026-028-029-NCZ048-051>053-058-059-062>065-068>072-
082-507>510-SCZ001>014-019-240900-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-MADISON-SWAIN-HAYWOOD-
BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
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-
459 AM EDT SAT JUN 23 2012

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING
ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. ANY
THUNDERSTORMS THAT DEVELOP WILL PRODUCE DANGEROUS CLOUD TO GROUND
LIGHTNING AND HEAVY RAINFALL. A FEW OF THESE THUNDERSTORMS MAY
BECOME SEVERE...PRODUCING HAIL AS LARGE AS QUARTERS AND DAMAGING
WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

A WARM AND UNSTABLE AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION
ON SUNDAY AND MONDAY. ADDITIONAL ROUNDS OF SCATTERED THUNDERSTORMS
ARE EXPECTED TO DEVELOP EACH AFTERNOON...WITH SOME OF THESE
THUNDERSTORMS BECOMING SEVERE.

.SPOTTER INFORMATION STATEMENT...

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

NCZ033-035>037-049-050-056-057-501>506-240900-
AVERY-ALEXANDER-IREDELL-DAVIE-YANCEY-MITCHELL-CATAWBA-ROWAN-
CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-
MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
459 AM EDT SAT JUN 23 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA AND
WESTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING
ACROSS THE NORTHERN MOUNTAINS...NORTHERN FOOTHILLS...AND NORTHWEST
PIEDMONT OF NORTH CAROLINA. ANY THUNDERSTORMS THAT DEVELOP WILL
PRODUCE DANGEROUS CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL. A
FEW OF THESE THUNDERSTORMS COULD BECOME SEVERE...PRODUCING HAIL
AS LARGE AS QUARTERS AND DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

A WARM AND UNSTABLE AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION
ON SUNDAY AND MONDAY. ADDITIONAL ROUNDS OF SCATTERED THUNDERSTORMS
ARE EXPECTED TO DEVELOP EACH AFTERNOON...WITH SOME OF THESE
THUNDERSTORMS BECOMING SEVERE.

.SPOTTER INFORMATION STATEMENT...

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

GERAPETRITIS

In the hours before

Special weather statement, Jun 23, 6:56 PM EDT, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
656 PM EDT SAT JUN 23 2012

SCZ001-004-232345-
GREATER OCONEE-OCONEE MOUNTAINS-
656 PM EDT SAT JUN 23 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL OCONEE COUNTY THROUGH
745 PM EDT...

AT 654 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTHEAST OF LONG CREEK...OR 8 MILES WEST
OF WALHALLA...MOVING EAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  MOUNTAIN REST...
  WESTMINSTER...
  WALHALLA...
  SALEM...
  LAKE KEOWEE...

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

LAT...LON 3482 8331 3483 8329 3481 8327 3484 8327
      3485 8325 3488 8323 3494 8291 3482 8290
      3479 8288 3474 8290 3473 8288 3464 8288
      3468 8331

JOH
Special weather statement, Jun 23, 7:01 PM EDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
701 PM EDT SAT JUN 23 2012

SCZ008-009-013-232345-
CHEROKEE-UNION-YORK-
701 PM EDT SAT JUN 23 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN UNION...SOUTHERN
CHEROKEE AND WESTERN YORK COUNTIES THROUGH 745 PM EDT...

AT 658 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SARATT...OR 13 MILES SOUTHEAST OF GAFFNEY...
MOVING NORTH AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  HICKORY GROVE...

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

LAT...LON 3509 8162 3499 8134 3479 8151 3483 8165

JOH
Special weather statement, Jun 23, 8:03 PM EDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
803 PM EDT SAT JUN 23 2012

NCZ068-508-SCZ008-009-013-240045-
CHEROKEE-CLEVELAND-GREATER RUTHERFORD-UNION-YORK-
803 PM EDT SAT JUN 23 2012

...STRONG THUNDERSTORMS WILL AFFECT CHEROKEE...NORTHEASTERN UNION...
SOUTHEASTERN RUTHERFORD...SOUTHWESTERN CLEVELAND AND WESTERN YORK
COUNTIES THROUGH 845 PM EDT...

AT 800 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES SOUTHEAST OF
CLIFFSIDE TO 3 MILES EAST OF SARATT...MOVING EAST AT 10 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  BOILING SPRINGS NC...
  HICKORY GROVE...

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

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

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

LAT...LON 3482 8124 3482 8147 3481 8148 3479 8146
      3478 8152 3525 8188 3529 8152 3483 8116

JOH
Special weather statement, Jun 23, 8:14 PM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
814 PM EDT SAT JUN 23 2012

NCZ063-064-240100-
SOUTHERN JACKSON-TRANSYLVANIA-
814 PM EDT SAT JUN 23 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN JACKSON AND WESTERN
TRANSYLVANIA COUNTIES THROUGH 900 PM EDT...

AT 811 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WOLF MOUNTAIN...OR 14 MILES WEST OF
BREVARD...MOVING SOUTH AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  LAKE TOXAWAY...
  ROSMAN...

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

LAT...LON 3529 8292 3530 8290 3509 8273 3508 8273
      3507 8276 3507 8278 3508 8278 3502 8302
      3526 8309

JOH
Special weather statement, Jun 23, 9:01 PM EDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
901 PM EDT SAT JUN 23 2012

NCZ071-SCZ009-240145-
MECKLENBURG-YORK-
901 PM EDT SAT JUN 23 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN YORK AND SOUTHWESTERN
MECKLENBURG COUNTIES THROUGH 945 PM EDT...

AT 859 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR TEGA CAY...OR 5 MILES NORTH OF ROCK HILL...
MOVING EAST AT 5 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  FORT MILL...

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

LAT...LON 3502 8081 3500 8084 3505 8089 3501 8090
      3495 8086 3490 8088 3497 8110 3508 8110
      3507 8078

JOH
Special weather statement, Jun 23, 9:53 PM EDT, 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
953 PM EDT SAT JUN 23 2012

NCZ071-082-SCZ009-240230-
MECKLENBURG-UNION-YORK-
953 PM EDT SAT JUN 23 2012

...STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN YORK...SOUTHERN
MECKLENBURG AND WESTERN UNION COUNTIES THROUGH 1030 PM EDT...

AT 950 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES EAST OF FORT
MILL TO 3 MILES NORTHWEST OF LANCASTER...MOVING EAST AT 10 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  WAXHAW...

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

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

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

LAT...LON 3481 8079 3486 8080 3494 8079 3505 8089
      3501 8090 3495 8086 3484 8086 3482 8089
      3482 8091 3507 8096 3510 8054 3481 8051

JOH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 8:14 PM EDTSpecial Weather StatementGSPTransylvania46 min
Jun 23, 9:53 PM EDTSpecial Weather StatementGSPUnion37 min
Jun 23, 11:06 PM EDTSpecial Weather StatementGSPGaston39 min
Jun 24, 2:31 PM EDTSpecial Weather StatementGSPMecklenburg44 min
Jun 24, 2:41 PM EDTSpecial Weather StatementGSPIredell49 min
Jun 24, 3:20 PM EDTSpecial Weather StatementGSPUnion40 min
Jun 24, 3:32 PM EDTSpecial Weather StatementGSPIredell43 min
Jun 24, 3:57 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union49 min
Jun 24, 4:07 PM EDTSevere Thunderstorm WarningGSPIredell, Rowan53 min
Jun 24, 4:11 PM EDTSpecial Weather StatementGSPBurke49 min
Jun 24, 4:18 PM EDTSpecial Weather StatementGSPUnion42 min
Jun 24, 4:40 PM EDTAreal Flood AdvisoryGSPUnion96 min
Jun 24, 5:18 PM EDTSevere Thunderstorm WarningGSPMacon57 min
Jun 24, 5:23 PM EDTSpecial Weather StatementGSPMecklenburg52 min
Jun 24, 5:38 PM EDTSpecial Weather StatementGSPBurke52 min
Jun 24, 5:44 PM EDTSevere Thunderstorm WarningGSPCabarrus46 min
Jun 24, 6:19 PM EDTSpecial Weather StatementGSPCleveland41 min
Jun 24, 6:30 PM EDTSevere Thunderstorm WarningGSPLincoln45 min
Jun 24, 7:06 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln39 min
Jun 24, 7:14 PM EDTSpecial Weather StatementGSPBurke46 min
Jun 24, 7:42 PM EDTSpecial Weather StatementGSPGaston48 min

Nearby

Severe Thunderstorm Warnings in North 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.