Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 155, NWS Greenville-Spartanburg, SC

May 12, 2011Oconee County, Pickens County, South Carolina; Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 12, 2011, 7:04 PM EDT for Oconee County, Pickens County, South Carolina; Transylvania County, North Carolina. It was in force for 56 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: May 12, 2011, 7:04 PM EDT (23:04 UTC)
Expired: May 12, 2011, 8:00 PM EDT
In force: 56 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), 56 km from the middle of the area, began a volume at 23:04 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

Time	Report	Where	Remark
May 12, 7:15 PM EDT	HAIL 1	1 S Rosman, NC	OBSERVER SAID THAT THE 1 INCH HAIL STARTED TO FALL AT 715 EDT.

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 11 minutes after it went out.

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.1 hours before the alert went out and 248 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1457 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1088 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 33 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.

522 
WUUS52 KGSP 122304
SVRGSP
NCC175-SCC073-077-130000-
/O.NEW.KGSP.SV.W.0155.110512T2304Z-110513T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
704 PM EDT THU MAY 12 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 800 PM EDT

* AT 700 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
  ROSMAN...OR 9 MILES SOUTHWEST OF BREVARD...MOVING SOUTH AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROCKY BOTTOM AND LAKE JOCASSEE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM PASSES.

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR
AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER...
1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3519 8294 3521 8271 3510 8269 3510 8272
      3506 8276 3505 8274 3506 8271 3506 8269
      3498 8267 3494 8303
TIME...MOT...LOC 2305Z 002DEG 5KT 3512 8283

$$
MOORE

2 follow-up statements

310 
WWUS52 KGSP 122321
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
721 PM EDT THU MAY 12 2011

NCC175-SCC073-077-130000-
/O.CON.KGSP.SV.W.0155.000000T0000Z-110513T0000Z/
TRANSYLVANIA NC-OCONEE SC-PICKENS SC-
721 PM EDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHWESTERN PICKENS...NORTHEASTERN OCONEE AND SOUTHERN
TRANSYLVANIA COUNTIES...

AT 717 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ROSMAN...OR 10 MILES SOUTHWEST OF BREVARD...MOVING SOUTH
AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE
JOCASSEE AND ROCKY BOTTOM

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND
DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR
WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM PASSES.

&&

LAT...LON 3519 8294 3521 8271 3510 8269 3510 8272
      3506 8276 3505 8274 3506 8271 3506 8269
      3498 8267 3494 8303
TIME...MOT...LOC 2321Z 002DEG 4KT 3511 8281

$$

MOORE

026 
WWUS52 KGSP 122347
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
747 PM EDT THU MAY 12 2011

SCC073-122356-
/O.CAN.KGSP.SV.W.0155.000000T0000Z-110513T0000Z/
OCONEE SC-
747 PM EDT THU MAY 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OCONEE COUNTY IS
CANCELLED...

THE THUNDERSTORM IS NOT EXPECTED TO REACH OCONEE COUNTY.

LAT...LON 3515 8270 3510 8269 3510 8272 3508 8275
      3506 8276 3505 8274 3506 8269 3498 8267
      3496 8284 3510 8286
TIME...MOT...LOC 2346Z 332DEG 6KT 3508 8278

$$

NCC175-SCC077-130000-
/O.CON.KGSP.SV.W.0155.000000T0000Z-110513T0000Z/
TRANSYLVANIA NC-PICKENS SC-
747 PM EDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTH CENTRAL PICKENS AND SOUTH CENTRAL TRANSYLVANIA COUNTIES...

AT 742 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ROCKY BOTTOM...OR 11 MILES SOUTH OF BREVARD...MOVING
SOUTHEAST AT 5 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTIES.

IF THIS STORM MAINTAINS ITS INTENSITY...ANOTHER WARNING WILL BE 
NEEDED FOR PORTIONS OF PICKENS COUNTY...AND PERHAPS NORTHWEST 
GREENVILLE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND
DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR
WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM PASSES.

&&

LAT...LON 3515 8270 3510 8269 3510 8272 3508 8275
      3506 8276 3505 8274 3506 8269 3498 8267
      3496 8284 3510 8286
TIME...MOT...LOC 2346Z 332DEG 6KT 3508 8278

$$

MOORE

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 12, 2:37 PM EDT, 4 hours 27 minutes earlier.

Area forecast discussion, May 12, 2:37 PM EDT, 4 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
237 PM EDT THU MAY 12 2011

.SYNOPSIS...
AN UPPER LEVEL RIDGE OVER THE SOUTHEAST WILL KEEP A WEAK SURFACE
BOUNDARY JUST TO THE WEST OF THE AREA TODAY INTO EARLY FRIDAY.
MEANWHILE A LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL
APPROACH THE AREA FROM THE WEST LATE FRIDAY THEN MOVE THROUGH THE
AREA ON SATURDAY. THIS LOW WILL LINGER ALONG THE COAST THROUGH THE
FIRST PART OF THE WEEK.

&&

.NEAR TERM /THROUGH FRIDAY/...
HIGHER ELEVATION DEEP CONVECTION JUST GETTING UNDERWAY AS OF 2 PM AND
WILL STEADILY EXPAND IN CVRG AND MAGNITUDE INTO THIS EVENING. ACRS
THE NORTHERN/NORTHEASTERN HALF OF THE CWFA...FURTHEST AWAY FROM
UPPER RIDGE AXIS...STANDS THE BEST CHANCE OF SEEING TSTMS EXCEED SVR
LIMITS. UPPER HEIGHTS ATOP THE SE CONUS TONIGHT EXPECTED TO FALL
STEADILY AS ENERGY EJECTS ENEWARD FROM DIGGING PLAINS CLOSED LOW.
IN CONJUNCTION WITH ENCROACHING LLVL CONVERGENCE AXIS/SFC TROUGH
WILL PLAN ON LINGERING CHANCE POP INTO THE OVERNIGHT HOURS. FRIDAY
MORNING MIN TEMPS WILL BE MILD ONCE AGAIN...ABOUT 10 DEG F ABOVE THE
MID-MAY NORMAL. AFOREMENTIONED PLAINS LOW WILL CONTINUE TRANSLATING
SEWARD FRIDAY...EVENTUALLY PLACING THE CWFA UNDER MID/UPPER
DIFFLUENT FLOW. WOULD EXPECT DIURNALLY ENHANCED DEEP CONVECTIVE CVRG
ALONG AND NORTH OF LINGERING LLVL CONVERGENCE/SFC TROUGH TO BECOME
NUMEROUS AS MAX TEMPS WARM TO WITHIN A CATEGORY OF PERSISTENCE.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
AS OF 230 PM THU...THE GFS WAS FAVORED OVER THE NAM FOR THE FRI
NGHT THROUGH SUN PERIOD AS THE NAM CUTS OFF TOO MUCH ENERGY JUST
NORTH OF THE REGION AT THE END OF THE PERIOD. THE GFS IS ALSO
SUPPORTED BY THE 12 UTC UKMET AND THE 00 UTC EC.

FOR FRIDAY NIGHT THE REGION WILL BE UNDER A MOIST SWLY FLOW AHEAD OF
THE APPROACHING UPPER LOW. SOME MODELS...INCLUDING THE GFS...BRING
PCPN INTO THE REGION OVERNIGHT AS A COUPLE WEAK LEAD SHORT WAVES
CROSS THE REGION. THIS SEEMS REASONABLE...AND I/VE KEPT CHANCE POPS
IN THROUGH FRI NIGHT...WITH THE HIGHEST POPS ACROSS THE MTNS.

THE MODELS BRING A COLD FRONT ACROSS THE REGION DURING THE DAY ON
SATURDAY. NUMEROUS SHOWERS AND TSTMS ARE EXPECTED IN THE MOIST
AIRMASS AHEAD OF THE FRONT ALONG WITH THE SYNOPTIC SCALE SUPPORT
PROVIDED BY UPPER LOW. WITH GENERALLY MOIST ADIABATIC LAPSE
RATES...MOST OF THE THUNDERSTORMS SHOULD STAY BELOW SEVERE LIMITS.
HOWEVER...A WIND OR HAIL THREAT IS POSSIBLE IN THE AFTN DEPENDING ON
HOW MUCH HEATING WE RECEIVE.

THE FRONT CROSSES THE FA SATURDAY NIGHT AS THE UPPER LOW LIFTS UP
INTO SRN OH. THIS WILL PUT THE REGION UNDER NVA AND A WEAK SHORT
WAVE RIDGE LATE SAT NIGHT AND SUN. THERE MAY BE A LITTLE MORE
FORCING THAN INDICATED BY THE GFS AS IT PROBABLY HAS TOO STRONG OF A
SHORT WAVE RIDGE OVER THE REGION...BUT THERE WON/T BE LOW. LOW
CHANCE POPS OVER THE NORTH AND SLIGHT CHANCE OVER THE SOUTH AS A
RESULT.

&&

.LONG TERM /SUNDAY NIGHT THROUGH WEDNESDAY/...
AS OF 100 PM THURSDAY...A HIGH AMPLITUDE UPPER RIDGE WILL SLOWLY
MOVE FROM TO ROCKIES TO THE WESTERN HIGH PLAINS DURING THE EXTENDED
PART OF THE FORECAST. DOWNSTREAM OF THE RIDGE...A COMPLEX
TROUGH...WITH SEVERAL EMBEDDED SHORT WAVES...WILL AFFECT THE REGION
THROUGH THE PERIOD.

THE GFS MAY BE CUTTING OFF AN UPPER LOW TOO FAR TO THE WEST LATE
SUNDAY. THE FEATURE CROSSES THE FA ON MONDAY...ACCOMPANIED BY GOOD
INSTABILITY AND FORCING...RESULTING IN QUITE A BIT OF PCPN. THE
CANADIAN AND EC...AND EVEN THE NAM THROUGH 84 HOURS...ARE NOT AS CUT
OFF WITH THIS ENERGY. THAT/S NOT TO SAY THAT THE GFS IS WRONG...BUT
IT/S PROBABLY NOT THE MOST LIKELY SCENARIO. HPC/S GUIDANCE GRIDS
STILL HAVE LIKELY POPS OVER THE WEST ON MONDAY. I/VE KEPT THIS AS
EVEN THE WEAKER EC HAS A GOOD AMOUNT OF DEEP MOISTURE OVER THE FA.

FOR TUE THE GFS WOULD STILL HAVE A GOOD CHANCE OF RAIN OVER THE
FA...WHILE THE EC AND CANADIAN BRING THE ENERGY FAR ENOUGH NORTH
THAT THE FA IS LARGELY UNDER A COOL...RATHER CLOUDY BUY MAINLY DRY
PATTERN. THIS IS BASICALLY REFLECTED IN THE GRIDS. THE UPPER LOW
SHOULD STRENGTHEN ON WED AS MORE ENERGY DROPS INTO THE TROUGH. AGAIN
THE EC IS FARTHER NORTH...BUT EVEN THE GFS/S LOW POSITION...OVER SRN
WV...WOULD LIMIT SHRA TO THE MTNS AND KEEP THE FA QUITE A BIT COOLER
THAN NORMAL. THE LOW CONTINUES TO DRIFT TO NORTH ON THURSDAY WITH
DRY AND COOL CONDITIONS.

&&

.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
AT KCLT...THE LONGER THAN EXPECTED LINGERING OF MVFR CIGS SHOULD
QUICKLY GIVE WAY TO SCT-BKN VFR LVL CU BY MID-AFTERNOON. SCATTERED
TSTMS COULD ENCROACH FROM THE NW BY EARLY EVENING. THE NC PIEDMONT
IS ON THE WESTERN PERIPHERY OF THE VERY MOIST BLYR OVERNIGHT...AND
MVFR CLOUDS COULD REDEVELOP DURING THE PRE-DAWN HOURS.

ELSEWHERE...THE GREATER AFTERNOON/EVENING TSTM PROBABILITY WILL BE
ACRS NC AND HAVE KEPT CB MENTION FOR KAVL/KHKY. OTHER CONCERNS FOR
THE PERIOD WILL CENTER AROUND THE POSSIBILITY OF MVFR BR AND NC
PIEDMONT LOW CLOUDS DEVELOPING DURING THE PRE-DAWN HOURS.

OUTLOOK...SCATTERED CEILING AND VISIBILITY RESTRICTIONS IN
THUNDERSTORMS MOST NUMEROUS OVER MOUNTAINS AND DURING AFTERNOONS AND
EVENINGS THROUGH END OF WEEK. MORNING MVFR FOG POSSIBLE WHERE RAIN
FELL THE NIGHT BEFORE.

&&

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

&&

SYNOPSIS...PAT
NEAR TERM...CSH
SHORT TERM...MCAVOY
LONG TERM...MCAVOY
AVIATION...CSH/SBK

Hazardous weather outlook, May 12, 4:28 PM EDT, 2 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
428 PM EDT THU MAY 12 2011

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-
506-508-510-SCZ001>014-019-132030-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-CATAWBA-ROWAN-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-
UNION NC-GREATER CALDWELL-GREATER BURKE-EASTERN MCDOWELL-
GREATER RUTHERFORD-EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
428 PM EDT THU MAY 12 2011

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

.DAY ONE...TONIGHT.

ISOLATED THUNDERSTORMS ARE POSSIBLE THIS EVENING OVER THE FOOTHILLS
AND PIEDMONT. CLOUD TO GROUND LIGHTNING AND VERY HEAVY RAIN WILL BE
THE MAIN THREAT FROM STORMS THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SCATTERED THUNDERSTORMS WILL AFFECT THE REGION FRIDAY AND FRIDAY
NIGHT. SOME OF THE THUNDERSTORMS MAY BECOME SEVERE...PRODUCING
LARGE HAIL AND DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ033-048>053-058-059-062>065-501-503-505-507-509-132030-
AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS-
RUTHERFORD MOUNTAINS-POLK MOUNTAINS-
428 PM EDT THU MAY 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS WILL AFFECT THE NORTH CAROLINA MOUNTAINS
THIS EVENING. A FEW OF THE STORMS WILL BECOME SEVERE...PRODUCING
LARGE HAIL AND SMALL AREAS OF DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SCATTERED TO NUMEROUS THUNDERSTORMS WILL AFFECT THE REGION FRIDAY
AND FRIDAY NIGHT. SOME OF THE THUNDERSTORMS MAY BECOME
SEVERE...PRODUCING LARGE HAIL AND DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, May 12, 5:02 PM EDT, 2 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
502 PM EDT THU MAY 12 2011

NCZ064-122145-
TRANSYLVANIA-
502 PM EDT THU MAY 12 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL TRANSYLVANIA COUNTY
THROUGH 545 PM EDT...

AT 458 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR BREVARD...MOVING SOUTH AT 10 MPH.

PEOPLE IN CENTRAL TRANSYLVANIA COUNTY...INCLUDING THE FOLLOWING
LOCATIONS...

BREVARD AND ROSMAN...

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

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

LAT...LON 3526 8289 3529 8279 3528 8262 3515 8259
      3512 8266 3513 8268 3510 8269 3510 8272
      3507 8276 3507 8278 3508 8278 3507 8285
      3507 8296

MOORE

Local storm report, May 12, 5:10 PM EDT, 1 hour 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
510 PM EDT THU MAY 12 2011

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

0335 PM     HAIL             7 WNW FLETCHER          35.47N 82.62W
05/12/2011  E0.75 INCH       BUNCOMBE           NC   PUBLIC

            NUMEROUS REPORTS OF PENNY SIZED HAIL ALONG AVERY CREEK
            ROAD.

&&

BSH

Special weather statement, May 12, 5:23 PM EDT, 1 hour 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
523 PM EDT THU MAY 12 2011

NCZ064-065-SCZ002-003-122215-
GREENVILLE MOUNTAINS-HENDERSON-PICKENS MOUNTAINS-TRANSYLVANIA-
523 PM EDT THU MAY 12 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN TRANSYLVANIA...NORTHERN
PICKENS...NORTHWESTERN GREENVILLE AND SOUTHERN HENDERSON COUNTIES
THROUGH 615 PM EDT...

AT 519 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CEDAR MOUNTAIN...OR 7 MILES SOUTHEAST OF
BREVARD...MOVING SOUTH AT 5 MPH.

PEOPLE IN EASTERN TRANSYLVANIA...NORTHERN PICKENS...NORTHWESTERN
GREENVILLE AND SOUTHERN HENDERSON COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...

JONES GAP STATE PARK AND CAESARS HEAD...

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

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

LAT...LON 3505 8244 3499 8276 3519 8275 3524 8253

MOORE

Special weather statement, May 12, 5:32 PM EDT, 1 hour 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
532 PM EDT THU MAY 12 2011

NCZ052-122215-
HAYWOOD-
532 PM EDT THU MAY 12 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN HAYWOOD COUNTY THROUGH
615 PM EDT...

AT 527 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTH OF COVE CREEK...OR 14 MILES NORTH
OF WAYNESVILLE...MOVING EAST AT 5 MPH.

PEOPLE IN NORTHERN HAYWOOD COUNTY...

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

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

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...THEREFORE SEEK
HIGHER GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3574 8295 3574 8292 3566 8288 3557 8290
      3561 8318 3568 8319 3574 8315 3576 8296

MOORE

Special weather statement, May 12, 5:57 PM EDT, 1 hour 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
557 PM EDT THU MAY 12 2011

GAZ010-SCZ001-004-122245-
GREATER OCONEE-OCONEE MOUNTAINS-RABUN-
557 PM EDT THU MAY 12 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN RABUN AND OCONEE
COUNTIES THROUGH 645 PM EDT...

AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHEAST OF LONG CREEK...OR 9 MILES WEST
OF WALHALLA...MOVING SOUTHEAST AT 5 MPH.

PEOPLE IN EASTERN RABUN AND OCONEE COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...

LONG CREEK AND WALHALLA...

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

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

LAT...LON 3492 8322 3472 8290 3454 8311 3479 8337

MOORE

Special weather statement, May 12, 6:10 PM EDT, 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
610 PM EDT THU MAY 12 2011

NCZ064-SCZ002-003-122300-
GREENVILLE MOUNTAINS-PICKENS MOUNTAINS-TRANSYLVANIA-
610 PM EDT THU MAY 12 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL TRANSYLVANIA...
NORTHWESTERN GREENVILLE AND NORTHWESTERN PICKENS COUNTIES THROUGH 700
PM EDT...

AT 605 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR ROSMAN...OR 7 MILES SOUTHWEST OF BREVARD...
MOVING SOUTH AT 10 MPH.

PEOPLE IN CENTRAL TRANSYLVANIA...NORTHWESTERN GREENVILLE AND
NORTHWESTERN PICKENS COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...

ROSMAN AND ROCKY BOTTOM...

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

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

LAT...LON 3524 8271 3502 8261 3497 8293 3499 8295
      3501 8293 3501 8292 3502 8292 3504 8292
      3505 8290 3505 8295 3520 8295

MOORE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 9:02 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee	37 min
May 12, 5:57 PM EDT	Special Weather Statement	GSP	Oconee	48 min
May 11, 8:34 PM EDT	Special Weather Statement	GSP	Cleveland	41 min
May 11, 10:08 PM EDT	Special Weather Statement	GSP	Union	52 min
May 11, 10:13 PM EDT	Special Weather Statement	GSP	Mecklenburg	47 min
May 12, 2:15 PM EDT	Special Weather Statement	GSP	Henderson	45 min
May 12, 3:26 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Henderson	64 min
May 12, 3:33 PM EDT	Special Weather Statement	GSP	Buncombe	42 min
May 12, 4:04 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	56 min
May 12, 4:21 PM EDT	Special Weather Statement	GSP	McDowell, Rutherford	39 min
May 12, 4:46 PM EDT	Special Weather Statement	GSP	Haywood	44 min
May 12, 5:02 PM EDT	Special Weather Statement	GSP	Transylvania	43 min
May 12, 5:23 PM EDT	Special Weather Statement	GSP	Transylvania	52 min
May 12, 5:32 PM EDT	Special Weather Statement	GSP	Haywood	43 min
May 12, 6:10 PM EDT	Special Weather Statement	GSP	Transylvania	50 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Severe Thunderstorm Warnings in North Carolina, 2011 Every severe thunderstorm warning in 2011

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.