Alert archive / South Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 86, NWS Greenville-Spartanburg, SC

May 30, 2014Oconee County, Pickens County, South Carolina; Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 30, 2014, 1:50 PM EDT for Oconee County, Pickens County, South Carolina; Transylvania County, North Carolina. It was in force for 55 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
May 30, 2014, 1:50 PM EDT (17:50 UTC)
Expired
May 30, 2014, 2:45 PM EDT
In force
55 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Transylvania County, NC, Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 61 km from the middle of the area, began a volume at 17:53 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.8 hours before the alert went out and 240 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 2014-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 450 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 2014-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
450 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
869 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
27 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.

779 
WUUS52 KGSP 301750
SVRGSP
NCC175-SCC073-077-301845-
/O.NEW.KGSP.SV.W.0086.140530T1750Z-140530T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
150 PM EDT FRI MAY 30 2014

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA...
  NORTHEASTERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...
  NORTHWESTERN PICKENS COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 245 PM EDT

* AT 149 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
  GORGES STATE PARK...OR 14 MILES SOUTHWEST OF BREVARD...AND MOVING
  SOUTH AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  ROCKY BOTTOM.
  LAKE JOCASSEE.
  KEOWEE TOXAWAY STATE PARK...DEVILS FORK STATE PARK AND NINE TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

&&

LAT...LON 3512 8301 3515 8298 3517 8279 3507 8275
      3506 8276 3505 8275 3486 8268 3483 8301
TIME...MOT...LOC 1751Z 352DEG 5KT 3507 8288

$$

RWH
3 follow-up statements
599 
WWUS52 KGSP 301809
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
209 PM EDT FRI MAY 30 2014

NCC175-301819-
/O.CAN.KGSP.SV.W.0086.000000T0000Z-140530T1845Z/
TRANSYLVANIA NC-
209 PM EDT FRI MAY 30 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN TRANSYLVANIA
COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HASMOVED OUT OF THIS AREA.

LAT...LON 3508 8280 3508 8278 3508 8277 3507 8278
      3507 8276 3505 8275 3486 8268 3483 8301
      3503 8301
TIME...MOT...LOC 1809Z 352DEG 5KT 3505 8288

$$

SCC073-077-301845-
/O.CON.KGSP.SV.W.0086.000000T0000Z-140530T1845Z/
OCONEE SC-PICKENS SC-
209 PM EDT FRI MAY 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
PICKENS AND NORTHEASTERN OCONEE COUNTIES UNTIL 245 PM EDT...

AT 206 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 LAKE
JOCASSEE...OR 15 MILES NORTHWEST OF PICKENS...MOVING SOUTH AT 5 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  ROCKY BOTTOM.
  LAKE JOCASSEE.
  KEOWEE TOXAWAY STATE PARK...DEVILS FORK STATE PARK AND NINE TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.

&&

LAT...LON 3508 8280 3508 8278 3508 8277 3507 8278
      3507 8276 3505 8275 3486 8268 3483 8301
      3503 8301
TIME...MOT...LOC 1809Z 352DEG 5KT 3505 8288

$$

RWH
318 
WWUS52 KGSP 301829
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
229 PM EDT FRI MAY 30 2014

SCC073-077-301845-
/O.CON.KGSP.SV.W.0086.000000T0000Z-140530T1845Z/
OCONEE SC-PICKENS SC-
229 PM EDT FRI MAY 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
PICKENS AND NORTHEASTERN OCONEE COUNTIES UNTIL 245 PM EDT...

AT 228 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
KEOWEE TOXAWAY STATE PARK...OR 12 MILES NORTHWEST OF PICKENS...MOVING
SOUTH AT 5 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  KEOWEE TOXAWAY STATE PARK...NINE TIMES AND SALEM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.

&&

LAT...LON 3506 8276 3504 8274 3486 8268 3483 8301
      3502 8301
TIME...MOT...LOC 1830Z 352DEG 5KT 3496 8289

$$

RWH
736 
WWUS52 KGSP 301843
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
243 PM EDT FRI MAY 30 2014

SCC073-077-301854-
/O.EXP.KGSP.SV.W.0086.000000T0000Z-140530T1845Z/
OCONEE SC-PICKENS SC-
243 PM EDT FRI MAY 30 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN PICKENS AND
NORTHEASTERN OCONEE COUNTIES WILL EXPIRE AT 245 PM EDT...

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

ADDITIONAL SEVERE THUNDERSTORMS MAY DEVELOP ACROSS THE AREA LATER.
STAY TUNED TO LOCAL MEDIA OUTLETS OR NOAA ALL HAZARDS WEATHER RADIO
FOR THE LATEST WEATHER INFORMATION.

LAT...LON 3506 8276 3504 8274 3486 8268 3483 8301
      3502 8301
TIME...MOT...LOC 1844Z 352DEG 5KT 3494 8289

$$

RWH

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 May 30, 10:22 AM EDT, 3 hours 28 minutes earlier.

Area forecast discussion, May 30, 10:22 AM EDT, 3 hours 28 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1022 AM EDT FRI MAY 30 2014

.SYNOPSIS...
A BACKDOOR COLD FRONT WILL SLOWLY CROSS THE FORECAST AREA FROM THE
NORTHEAST THROUGH FRIDAY NIGHT. HIGH PRESSURE WILL BUILD IN FROM THE
NORTHEAST THIS WEEKEND LEADING TO IMPROVED WEATHER CONDITIONS.  THIS
HIGH PRESSURE WILL SLIDE OFFSHORE TAKING ROOT OVER BERMUDA BY
MIDWEEK YIELDING INCREASED POTENTIAL FOR DIURNAL SHOWERS AND
THUNDERSTORMS.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF MID MORNING...QUIET FOR THE TIME BEING WITH HIGH CLOUDS
PERHAPS KEEPING A LID ON EARLY CONVECTION ACROSS NC. EXPECT
CONVECTIVE INITIATION ALONG/NEAR THE BLUE RIDGE/BALSAMS AROUND
17Z-18Z PER THE CONVECTION ALLOWING MODELS. HAVE KNOCKED THE POP
DOWN INITIALLY BUT ALLOWED IT TO COME BACK TO WHERE THE FCST HAD IT
BY MID AFTERNOON. TEMPS LOOK OKAY.

REMAINDER OF PREVIOUS DISCUSSION...

BACK DOOR COLD FRONT ISN/T MUCH OF A COLD FRONT. LATEST SURFACE
ANALYSIS DEPICTS ONLY A VERY GRADUAL GRADIENT IN TEMP AND DEWPOINT
ACROSS THE SOUTHEAST/MID-ATLANTIC...WITH LOWER 60S DEWPOINTS FOUND
AS FAR NORTH AS CENTRAL VIRGINIA. YESTERDAY/S RELATIVELY STRONG
TEMP GRADIENT BETWEEN WESTERN AND CENTRAL NC APPEARED TO HAVE MORE
TO DO WITH A CLOUD COVER GRADIENT THAN BONAFIDE BAROCLINITY. IN
FACT...THERE ISN/T EVEN MUCH OF A DISCERNIBLE WIND SHIFT ZONE ACROSS
THE REGION ATTM. ALL THIS IS TO SAY THAT IT IS UNCERTAIN HOW MUCH OF
A ROLE THE BOUNDARY WILL HAVE IN FOCUSING CONVECTION ACROSS THE AREA
THIS AFTERNOON. THE MESOSCALE MODELS SEEM TO BE HIGHLIGHTING TYPICAL
DIFFERENTIAL HEATING EFFECTS AS THE PRIMARY DRIVER OF INITIATION
THIS AFTERNOON. STEERING CURRENTS AND COLD POOL PROPAGATION
MECHANISMS WOULD FAVOR SOUTHEAST MOVEMENT OF CONVECTION ORIGINATING
OVER THE HIGH TERRAIN THIS AFTERNOON INTO THAT PART OF THE PIEDMONT
ROUGHLY SOUTH OF I-40 AND EAST OF THE UPPER SAVANNAH RIVER VALLEY.
THIS ALSO HAPPENS TO BE WHERE SOME MODEL GUIDANCE IS FOCUSING A
BROAD AREA OF BOUNDARY LAYER CONVERGENCE ALONG THE SURFACE BOUNDARY.
IT IS CERTAINLY POSSIBLE THAT THE BOUNDARY WILL BECOME BETTER
DEFINED LATER TODAY...IF CLOUD COVER TO THE NORTH LINGERS LONG
ENOUGH TO HOLD DOWN TEMPS/STRENGTHEN THE THERMAL GRADIENT. ALL
THINGS CONSIDERED...LIKELY POPS APPEAR WARRANTED FROM THESE AREAS
WEST TO THE HIGH TERRAIN ALONG THE BLUE RIDGE.

SLIGHTLY COOLER THICKNESSES AND MORE EXTENSIVE CLOUD COVER SHOULD
SUPPORT MAXES ABOUT A CATEGORY COOLER THAN THURSDAY. THIS WILL ALSO
ACT TO LIMIT INSTABILITY SOMEWHAT...SO THE THREAT FOR SEVERE WEATHER
WILL CONTINUE TO BE LIMITED TO A HANDFUL OF MARGINAL PULSE SEVERE
STORMS IN THE MODERATELY UNSTABLE (BUT MOIST) AND VERY WEAKLY
SHEARED ENVIRONMENT. RELATIVELY SLOW CELL MOVEMENT...AND THE
POTENTIAL FOR TRAINING (ASSUMING THE BOUNDARY BECOMES BETTER
DEFINED) WILL YIELD A THREAT FOR FLASH FLOODING...BUT THE THREAT
CONTINUES TO BE APPEAR TOO LOCALIZED TO ENTERTAIN THOUGHTS OF A
FLASH FLOOD WATCH ATTM.

CONVECTION WILL AGAIN LINGER INTO THE EVENING IN THE MOIST AIR MASS.
THE EXCEPTION WILL BE ACROSS THE NORTHERN ZONES...WHERE DRIER AIR
WILL FINALLY BEGIN FILTERING IN. ACROSS THE REMAINDER OF THE
AREA...THE WEAKLY FORCED/WEAKLY SHEARED ENVIRONMENT SHOULD NOT
SUPPORT ACTIVITY FOR TOO LONG AFTER MIDNIGHT. MIN TEMPS WILL
GENERALLY BE A CATEGORY OR SO ABOVE CLIMO.

&&

.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
AT 330 AM EDT FRIDAY...THE SHORT TERM PERIOD INITIALIZES SATURDAY
MORNING WITH A BACK DOOR COLD FRONT CONTINUING TO SLIDE SOUTH
ALLOWING FOR NORTHERLY FLOW TO PREVAIL.  A DRIER AND MORE STABLE
AIRMASS WILL ADVECT IN THROUGH THE MORNING AND AFTERNOON HOURS AS
HIGH PRESSURE SLIDES SOUTHEAST.  HOWEVER...THE SLOW PROGRESSION OF
THIS ADVECTION WILL LIKELY LEAVE A BAND OF UNSTABLE AIR IN THE
VICINITY OF INTERSTATE 85 SOUTHWARD INTO THE MIDLANDS...LEADING TO
INCREASED SHOWER AND THUNDERSTORM POTENTIAL.  THUS...WILL HIGHLIGHT
SLIGHT CHANCE POPS ACROSS MUCH OF THE NC/SC PIEDMONTS INCREASING TO
SOLID CHANCE LEVEL POPS FURTHER SOUTHWEST ADJACENT TO MOISTURE
AXIS.

FOR SUNDAY...HIGH PRESSURE WILL SLOWLY SLIDE SOUTHEAST ACROSS THE
MID ATLANTIC COAST YIELDING INITIAL NORTHERLY FLOW THAT WILL VEER
SOUTHEASTERLY THROUGH THE END OF THE PERIOD.  THIS INCREASING
SURFACE HIGH PRESSURE ALONG WITH UPPER LEVEL RIDGING WILL LEAD TO A
DRY FORECAST THROUGH THE DAY ON SUNDAY ACROSS THE PIEDMONT REGIONS
WITH SLIGHT CHANCE POPS HIGHLIGHTED ACROSS PORTIONS OF THE WESTERN
UPSTATE AND THE HIGH TERRAIN OF WESTERN NC AND NORTHEAST GA AS WEAK
EASTERLY UPSLOPE FLOW COULD PROVIDE ENOUGH LIFT FOR A FEW SHOWERS
AND OR THUNDERSTORMS.  THESE POPS WILL TAPER DOWN THROUGH THE
AFTERNOON AS THE SURFACE RIDGE SETTLES OVER THE SANDHILLS AND
COASTAL PLAIN OF NC LEADING TO A DRY FORECAST THROUGH MONDAY
MORNING.  TEMPERATURES THROUGH THE SHORT TERM PERIOD WILL GRADUALLY
COOL WITH BELOW NORMAL TEMPERATURES EXPECTED BY SUNDAY.

&&

.LONG TERM /MONDAY THROUGH THURSDAY/...
AT 345 AM EDT FRIDAY...THE EXTENDED RANGE PERIOD WILL INITIALIZE
MONDAY MORNING UNDER DEEP LAYER RIDGING.  A SURFACE HIGH CENTERED OF
THE NC/SC COASTLINE WILL SLOWLY SLIDE SOUTHEASTWARD THROUGH MONDAY
INTO TUESDAY BEFORE ESTABLISHING ITSELF AS A BERMUDA HIGH BY
MIDWEEK.  MEANWHILE...SURFACE CYCLOGENESIS WILL BE OCCURRING ACROSS
THE UPPER MIDWEST AS A WEAK UPPER WAVE EJECTS THROUGH THE MEAN FLOW
ALOFT.  THIS LOW PRESSURE SYSTEM WILL PUSH THROUGH THE GREAT LAKES
AND INTO SOUTHERN ONTARIO THROUGH MIDWEEK WITH A WEAK COLD FRONT
SLIDING SOUTHWARD INTO THE OHIO VALLEY...EVENTUALLY STALLING OUT TO
OUR NORTH.  THIS OVERALL PATTERN WILL YIELD INCREASINGLY UNSETTLED
WEATHER ACROSS THE SOUTHERN APPALACHIANS AS SOUTHERLY FLOW RAMPS UP
ALLOWING FOR ATLANTIC...AND EVENTUALLY GULF MOISTURE TO ADVECT IN.
AS THE PRESSURE GRADIENT INCREASES THROUGH MIDWEEK...THIS ADVECTION
WILL ALSO MAGNIFY LEADING TO INCREASED POTENTIAL FOR MOSTLY DIURNAL
SHOWERS AND THUNDERSTORMS EACH AFTERNOON.  THUS...FORECAST
HIGHLIGHTS CHANCE LEVELS POPS ACROSS THE MOUNTAINS ON MONDAY BEFORE
SPREADING EASTWARD ACROSS THE ENTIRE CWFA BY WEDNESDAY...LASTING
THROUGH THE PERIOD ON A DIURNAL TREND.  FORECAST SOUNDINGS INDICATE
WEAK FLOW ALOFT ALONG WITH PWAT VALUES TOPPING 1.5 INCHES...THUS
THERE COULD BE POTENTIAL FOR FLOODING ALONG WITH OTHER CONVECTIVE
THREATS.  TEMPERATURES THROUGH THE EXTENDED RANGE PERIOD WILL
MODERATE AMIDST THE INCREASING WAA LEADING TO ABOVE NORMAL
TEMPERATURES EACH DAY.

&&

.AVIATION /15Z FRIDAY THROUGH TUESDAY/...
AT KCLT AND ELSEWHERE...OTHER THAN SOME BRIEF PERIODS OF IFR CIGS
EARLIER THIS MORNING...IFR CONDITIONS HAVEN/T MATERIALIZED AS
EXPECTED AT KHKY/KCLT...AND WE WILL BEGIN THE FORECAST WITH VFR
CONDITIONS AT KCLT WITH MVFR FOG AT KHKY. HOWEVER...IFR CONDITIONS
AREN/T FAR AWAY...AND TRENDS WILL HAVE TO BE MONITORED CLOSELY THIS
MORNING. MEANWHILE...LOW MVFR CIGS ARE ALREADY SCATTERING OUT AT THE
UPSTATE SC TERMINALS AND KAVL. TEMPOS HAVE BEEN CARRIED FOR THE
FIRST COUPLE OF HOURS IN CASE IT RETURNS...BUT WILL OTHERWISE
ADVERTISE VFR CONDITIONS UNTIL CONVECTION DEVELOPS THIS PM. SPEAKING
OF WHICH...SCATTERED TO NUMEROUS CONVECTIVE CELLS WILL DEVELOP AGAIN
FRI AFTERNOON...WITH VCTS/VCSH WARRANTED AT ALL TERMINALS BY EARLY
AFTERNOON...WITH CATEGORICAL -SHRA/VCTS BY MID-AFTERNOON...THEN VCTS
OR PROB30 FROM LATE AFTERNOON ON. WINDS WILL GENERALLY REMAIN LIGHT
E/NE OR LIGHT/VARIABLE THROUGH THE PERIOD.

OUTLOOK...ALTHOUGH GRADUAL DRYING WILL DEVELOP FROM THE NE OVER THE
WEEKEND INTO EARLY NEXT WEEK...CONTINUED BOUNDARY LAYER MOISTURE
WILL PRODUCE ISOLATED TO SCATTERED DIURNAL CONVECTION EACH
DAY...WITH MORNING RESTRICTIONS POSSIBLE.

CONFIDENCE TABLE...

            14-20Z        20-02Z        02-08Z        08-14Z
KCLT       HIGH  91%     HIGH 100%     HIGH 100%     HIGH  80%
KGSP       HIGH  85%     HIGH 100%     HIGH 100%     HIGH  97%
KAVL       HIGH 100%     HIGH 100%     HIGH  97%     MED   76%
KHKY       HIGH  99%     HIGH 100%     MED   77%     LOW   54%
KGMU       HIGH  85%     HIGH 100%     HIGH 100%     HIGH  97%
KAND       HIGH  87%     HIGH 100%     HIGH 100%     HIGH  91%

THE PERCENTAGE REFLECTS THE NUMBER OF GUIDANCE MEMBERS AGREEING
WITH THE SCHEDULED TAF ISSUANCE FLIGHT RULE CATEGORY. COMPLETE
HOURLY EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLES AND ENSEMBLE
FORECASTS ARE AVAILABLE AT THE FOLLOWING LINK: (MUST BE LOWER CASE)

WWW.WEATHER.GOV/GSP/AVIATION_TABLES

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...CDG/JAT
NEAR TERM...JDL/PM
SHORT TERM...CDG
LONG TERM...CDG
AVIATION...JDL
Hazardous weather outlook, May 30, 5:00 AM EDT, 8 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
500 AM EDT FRI MAY 30 2014

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-310900-
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-
500 AM EDT FRI MAY 30 2014

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

.DAY ONE...TODAY AND TONIGHT.

A WEAK BACK DOOR FRONTAL BOUNDARY WILL PUSH THROUGH THE REGION
TODAY WITH AMPLE INSTABILITY PRESENT FOR SHOWER AND THUNDERSTORM
INITIATION THIS AFTERNOON AND EVENING. THE PRIMARY THREATS WITH
ANY OF THESE THUNDERSTORMS WILL BE HEAVY RAINFALL THAT COULD LEAD
TO FLASH FLOODING ALONG WITH FREQUENT CLOUD TO GROUND LIGHTNING. A
FEW OF THESE THUNDERSTORMS COULD REACH SEVERE LIMITS LEADING TO AN
ADDITIONAL DAMAGING WIND AND HAIL THREAT.

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

..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..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...AND FLASH FLOODING TO OUR OFFICE.

CDG

In the hours before

Local storm report, May 30, 12:25 PM EDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1225 PM EDT FRI MAY 30 2014

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

0625 PM     TSTM WND DMG     1 NW HUNTERSVILLE       35.43N 80.86W
05/29/2014                   MECKLENBURG        NC   FIRE DEPT/RESCUE

            1 TREE DOWN HAYENRIDGE CT

&&

LVISIN
Special weather statement, May 30, 1:01 PM EDT, 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
101 PM EDT FRI MAY 30 2014

GAZ010-017-301730-
HABERSHAM-RABUN-
101 PM EDT FRI MAY 30 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN HABERSHAM AND
SOUTHWESTERN RABUN COUNTIES THROUGH 130 PM EDT...

AT 1258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR LAKE BURTON...OR 11 MILES SOUTHEAST OF
HIAWASSEE...MOVING SOUTHWEST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BATESVILLE...

DIME SIZE HAIL...WIND GUSTS UP TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

LAT...LON 3482 8366 3485 8367 3489 8366 3492 8361
      3485 8348 3459 8364 3460 8365 3463 8365
      3466 8367 3468 8365 3476 8363 3479 8368
      3481 8368

RWH
Local storm report, May 30, 1:04 PM EDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
104 PM EDT FRI MAY 30 2014

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

0445 PM     TSTM WND DMG     2 S MILLERSVILLE        35.82N 81.18W
05/29/2014                   CATAWBA            NC   PARK/FOREST SRVC

            NUMEROUS 2-3 INCH DIAMETER BRANCHES DOWN IN RIVERBEND
            PARK

&&

LVISIN
Special weather statement, May 30, 1:33 PM EDT, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
133 PM EDT FRI MAY 30 2014

GAZ010-SCZ001-301800-
OCONEE MOUNTAINS-RABUN-
133 PM EDT FRI MAY 30 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN OCONEE AND RABUN
COUNTIES THROUGH 200 PM EDT...

AT 129 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES EAST OF CLAYTON...MOVING SOUTHWEST AT 5
MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BLACK ROCK MOUNTAIN STATE PARK...
  CLAYTON...
  LAKEMONT...

DIME SIZE HAIL...WIND GUSTS UP TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

LAT...LON 3499 8336 3499 8310 3468 8330 3471 8335
      3474 8339 3473 8340 3480 8354

RWH
Special weather statement, May 30, 1:36 PM EDT, 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
136 PM EDT FRI MAY 30 2014

GAZ010-017-301800-
HABERSHAM-RABUN-
136 PM EDT FRI MAY 30 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN HABERSHAM AND
SOUTHWESTERN RABUN COUNTIES THROUGH 200 PM EDT...

AT 133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR BATESVILLE...OR 11 MILES NORTHWEST OF
CLARKESVILLE...MOVING SOUTHWEST AT 5 MPH.

DIME SIZE HAIL...WIND GUSTS UP TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

LAT...LON 3482 8366 3485 8367 3487 8366 3482 8347
      3461 8353 3464 8367 3473 8363 3476 8363
      3479 8368 3481 8368

RWH
Special weather statement, May 30, 1:45 PM EDT, 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
145 PM EDT FRI MAY 30 2014

NCZ505-506-301815-
EASTERN MCDOWELL-MCDOWELL MOUNTAINS-
145 PM EDT FRI MAY 30 2014

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MCDOWELL COUNTY
THROUGH 215 PM EDT...

AT 141 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR OLD FORT...OR 7 MILES SOUTHWEST OF MARION...
MOVING SOUTH AT 5 MPH.

DIME SIZE HAIL...WIND GUSTS UP TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

LAT...LON 3571 8201 3554 8198 3555 8201 3553 8203
      3553 8209 3552 8215 3556 8222 3556 8224
      3571 8223

RWH

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:08 PM EDTFlash Flood WarningGSPYork3 hr
May 30, 2:24 PM EDTSpecial Weather StatementGSPAnderson36 min
May 30, 3:15 PM EDTSpecial Weather StatementGSPPickens45 min
May 30, 4:22 PM EDTSpecial Weather StatementGSPGreenville38 min
May 30, 5:59 PM EDTAreal Flood AdvisoryGSPAbbeville2 hr
May 30, 6:05 PM EDTAreal Flood AdvisoryGSPSpartanburg3 hr
May 29, 8:42 PM EDTSpecial Weather StatementGSPIredell48 min
May 29, 8:52 PM EDTSpecial Weather StatementGSPIredell38 min
May 29, 9:10 PM EDTAreal Flood AdvisoryGSPAlexander, Iredell110 min
May 29, 9:42 PM EDTFlash Flood WarningGSPAlexander, Iredell3 hr
May 29, 9:48 PM EDTFlash Flood WarningGSPAlexander, Iredell3 hr
May 29, 10:03 PM EDTSpecial Weather StatementGSPDavie42 min
May 29, 10:17 PM EDTAreal Flood AdvisoryGSPDavie, Iredell2 hr
May 30, 1:45 PM EDTSpecial Weather StatementGSPMcDowell30 min
May 30, 1:53 PM EDTSpecial Weather StatementGSPBurke52 min
May 30, 3:34 PM EDTSpecial Weather StatementGSPMcDowell41 min
May 30, 4:57 PM EDTSpecial Weather StatementGSPIredell48 min
May 30, 5:03 PM EDTSpecial Weather StatementGSPRutherford42 min
May 30, 6:02 PM EDTAreal Flood AdvisoryGSPIredell118 min
May 30, 6:19 PM EDTSpecial Weather StatementGSPIredell41 min
May 30, 6:49 PM EDTAreal Flood AdvisoryGSPIredell2 hr

Nearby

Severe Thunderstorm Warnings in South Carolina, 2014Severe Thunderstorm Warnings in North Carolina, 2014Every severe thunderstorm warning in 2014

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.