Damaging Wind in South Carolina, May 14, 2012

Name: Damaging Wind in South Carolina, May 14, 2012
Start: 2012-05-14T20:10
End: 2012-05-14T20:10
Location: South Carolina

May 14, 2012 · NWS GSP · 1 event in 1 county or zone

Thunderstorm outflow winds caused a little wind damage in the eastern part of Anderson County during the evening hours.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GSP wrote it up.

Thunderstorm outflow winds caused a little wind damage in the eastern part of Anderson County during the evening hours.

What forecasters said that day

The local office's own words before the first event, 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 the first event at May 14, 7:00 PM EST, 1 hour 10 minutes earlier.

Area forecast discussion, May 14, 7:00 PM EST, 1 hour 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
800 PM EDT MON MAY 14 2012

.SYNOPSIS...
SLOW MOVING LOW PRESSURE AND AN ASSOCIATED COLD FRONT WILL CONTINUE
TO MOVE EAST ACROSS THE AREA TONIGHT. ANOTHER WEAK COLD FRONT WILL
CROSS THE AREA WEDNESDAY...HIGH PRESSURE WILL THEN BUILD IN FROM THE
NORTH AND REMAIN INTO THE WEEKEND.

&&

.NEAR TERM /THROUGH TUESDAY/...
AS OF 745 PM...THE CLUSTER OF THUNDERSTORMS DRIVEN BY A PASSING
UPPER SHORTWAVE IS MOVING FROM THE FOOTHILLS INTO THE NC PIEDMONT.
WITH NO REPORTS OF MTN FLOODING AT THIS POINT AND ONLY LIGHT
STRATIFORM RAIN THERE...WILL CANCEL THE FLOOD WATCH FOR BURNSVILLE
TO ASHEVILLE...BUT LEAVE IT UP FROM HENDERSON THROUGH THE FOOTHILLS
UNTIL WE ARE SURE THERE IS NO ADDITIONAL FLOODING THERE. SIGNIFICANT
FLOODING IS ONGOING IN THE NC FOOTHILLS...AND WILL LIKELY DEVELOP
ACROSS THE INTERSTATE 77 CORRIDOR OVER THE NEXT FEW HOURS...SO NO
CHANGES IN THE WATCH THERE.

FOR THE OVERNIGHT...THE WEAK SHORT WAVE WILL MOVE NORTHEAST OF THE
AREA WITH ONLY ISOLD TO SCT LINGERING RAIN SHOWERS LIKELY OVERNIGHT.
WITH ABUNDANT LOW LEVEL MOISTURE...WIDESPREAD LOW CLOUDINESS AND FOG
SHOULD EASILY DEVELOP LATE TONIGHT OVER MOST AREAS.

ON TUE...THE DAY WILL BEGIN CLOUDY WITH A CONTINUED LULL IN SHOWER
ACTIVITY. HOWEVER...WITH A LITTLE MORE OF A SW COMPONENT TO THE WIND
FIELD THE LOW CLOUDINESS SHOULD GIVE WAY TO PARTLY CLOUDY CONDITIONS
BY MIDDAY. WITH THE INSOLATION AND THE APPROACH OF ANOTHER WEAK
SHORT WAVE...SCATTERED COVERAGE OF SHOWERS/THUDNERSTORMS SHOULD
DEVELOP DURING THE AFTERNOON HOURS.

FOR TEMPERATURES...WENT ABOVE GUIDANCE FOR MIN TEMPS TONIGHT AS HIGH
DEWPOINTS SHOULD KEEP TEMPS UP. USED A GUIDANCE BLEND FOR MAX TEMPS
ON TUE WHICH CALLS FOR TEMPS TO TOP OUT NEAR CLIMO.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/...
AS OF 215 PM MONDAY...ON WEDNESDAY...THE AXIS OF A H5 TROF WILL
SLOWLY DRIFT EAST ACROSS THE FORECAST AREA ON WEDNESDAY. AT THE
SFC...A LEE TROF WILL LIKELY DEVELOP AS THE MID LEVEL TROF PASSES
AND LLVL WINDS REMAIN NORTHWEST AND DOWNSLOPE ACROSS THE EAST FACING
SLOPES OF THE MTNS. GFS AND NAM FORECAST SOUNDINGS INDICATE MILD
TEMPS BETWEEN H8 TO H6 WITH VERY SHALLOW MID LEVEL LAPSE RATES.
AFTERNOON CAPE VALUES WILL LIKELY FAVOR VALUES BETWEEN 500 TO 1000
J/KG...WITH WEAK LLVL CIN VALUES. THE COMBINATION OF WEAK LLVL
CONVERGENCE WITHIN THE LEE TROF AND RIDGETOP HEATING MAY TRIGGER A
FEW SHRA/TSRA DURING THE HEAT OF THE AFTERNOON...I WILL INDICATE
SCHC POPS ACROSS THE FORECAST AREA. USING A BLEND OF MET AND MAV
GUIDANCE...HIGH TEMPERATURES WILL LIKELY RANGE FROM MID TO UPPER 70S
WITHIN THE MTN VALLEYS TO L80S EAST.

ON THURSDAY...A WEST TO EAST ORIENTED WEAK COLD FRONT IS EXPECTED TO
SLIP SOUTHWARD INTO THE NC ZONES THURSDAY AFTERNOON. ALOFT...SHORT
RANGE MODELS INDICATE THAT THE MID LEVEL TROF MAY REMAIN OVER THE
COASTAL PLAIN OF THE CAROLINAS...POSSIBLY CLOSING OFF TO A WEAK LOW.
HOWEVER...GIVEN THE PRESENCE OF THE WEAK SFC COLD FRONT AND LOW MID
LEVEL HEIGHTS I EXPECT AN INCREASE IN LLVL CONVERGENCE AND AMOUNTS
OF CONDITIONAL INSTABILITY. I WILL FORECAST CHC POPS ACROSS THE HIGH
TERRAIN FOR SHRA/TSRA AND LATE AFTERNOON SCHC EAST. HIGH
TEMPERATURES SHOULD VERIFY VERY CLOSE TO WEDNESDAY OBSERVED VALUES.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
AS OF NOON MONDAY...THE ECMWF AND GFS BEGIN THE EXTENDED RANGE IN
GOOD AGREEMENT ON FRIDAY. BOTH SOLUTIONS INDICATE A MID LEVEL TROF
ACROSS THE WESTERN ROCKIES AND WESTERN ATLANTIC WITH RIDGING ACROSS
THE APPALACHIANS. THE WESTERN TROF WILL REMAIN PROGRESSIVE THROUGH
THE PERIOD ACROSS THE NRN CONUS...RESULTING IN RISING HEIGHTS ACROSS
THE SOUTH DURING THE EARLY PORTION OF NEXT WEEK. THE MID
LEVEL LOW OVER THE WESTERN ATLANTIC IS EXPECTED TO REMAIN GENERALLY
IN PLACE...RESULTING IN GRADUALLY RISING HEIGHTS ACROSS THE WESTERN
CAROLINAS AND NE GEORGIA. THIS PATTERN WILL SUPPORT DAILY AVERAGE
TEMPERATURES RISING THROUGH THE EXTENDED PERIOD...RANGING AROUND 5
DEGREES ABOVE NORMAL BY MONDAY. WEAK SFC HIGH PRESSURE COMBINED WITH
MID LEVEL RIDGING WILL NOT FAVOR DEEP CONVECTION. BASED OF FORECAST
SOUNDINGS...I WILL ADVERTISE LATE AFTERNOON SCHC POPS FOR SHRA/TSRA
ACROSS THE MTNS...DRY EAST. A COLD FRONT MAY ARRIVE ACROSS THE MTNS
LATE MONDAY INTO MONDAY NIGHT....POSSIBLY RESULTING IN THE BEST
CHANCES FOR CONVECTION.

&&

.AVIATION /00Z TUESDAY THROUGH SATURDAY/...
AT KCLT...CLUSTER OF THUNDERSTORMS WILL TRAVERSE THE NC PIEDMONT
THROUGH 02Z. TSTMS SHOULD PROVIDE SOME W TO NW WIND GUSTS WITH
PASSAGE AS WELL AS VERY HEAVY RAINFALL AND FREQUENT LIGHTNING.
EXPECT MAINLY MVFR CIGS...BUT BRIEF IFR WILL BE POSSIBLE. AFTER THE
TSTM PASSAGE...EXPECT MAINLY MVFR CIGS BECOMING IFR OVERNIGHT WITH
THE GROUND VERY MOIST. PROFILES SHOW SLOW AND STEADY RECOVERY TO VFR
BY LATE TUE MORNING...WITH PROB30 FOR TSTMS AGAIN TUE AFTN. ASIDE
FROM ANY TSTMS...WINDS SHOULD REMAIN LIGHTLY SRLY.

ELSEWHERE...TSRA WILL BE POSSIBLE FOR ABOUT AN HOUR AT KAND AND
KHKY...BUT TSRA SHOULD BE CLEAR OF THE OTHER TAF SITES AT ISSUANCE
TIME. CANNOT RULE OUT VCSH THROUGHOUT THE OVERNIGHT HOURS GIVEN THE
MOIST BL...BUT THE UPPER SHORTWAVE SHOULD HAVE PASSED TO THE NE.
EXPECT CIGS TO DESCEND TO MVFR BY 04Z TO 06Z...WITH IFR LIKELY 08Z
TO 09Z. CIGS SHOULD STEADILY RECOVER TO VFR THROUGH LATE
MORNING...WITH ANOTHER ROUND OF VCTS LIKELY TUE AFTN IN CONTINUED
MOIST S TO SW FLOW WITH IMPROVING INSTABILITY.

OUTLOOK...EXPECT RESTRICTIONS IN SCT SHWRS AND TSTMS TO LINGER INTO
TUE NIGHT. ANOTHER ROUND OF IFR RESTRICTIONS ARE LIKELY EARLY WED
BEFORE SOME DRYING WED AFTERNOON. MAINLY VFR THEN. THERE WILL BE
MAINLY ISOLATED MOUNTAIN AFTERNOON SHOWERS AND TSTMS THRU LATE WEEK.
MRNG FOG PSBL...MAINLY MOUNTAIN VALLEYS AND NEAR LAKES/RIVERS.

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...FLASH FLOOD WATCH UNTIL 6 AM EDT TUESDAY FOR NCZ035>037-056-
     057-065-068>072-082-501>510.
SC...NONE.

&&

SYNOPSIS...WINESETT
NEAR TERM...HG/LG
SHORT TERM...NED
LONG TERM...NED
AVIATION...HG/LG

Hazardous weather outlook, May 14, 7:08 PM EST, 1 hour 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
808 PM EDT MON MAY 14 2012

GAZ010-017-018-026-028-029-NCZ033-048>053-058-059-062>064-SCZ001>014-
019-160015-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-MADISON-YANCEY-
MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-
SOUTHERN JACKSON-TRANSYLVANIA-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
808 PM EDT MON MAY 14 2012

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

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS WILL REMAIN OVER THE REGION THROUGH THE
EVENING HOURS. SOME OF THESE STORMS COULD BECOME STRONG TO
SEVERE...CAPABLE OF PRODUCING HAIL AND STRONG GUSTY WINDS. LOCALLY
HEAVY RAINFALL IS POSSIBLE IN A FEW LOCATIONS AS WELL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE WESTERN
CAROLINAS AND NORTHEAST GEORGIA AGAIN TUESDAY AFTERNOON AND
EVENING. A FEW OF THESE STORMS MAY PRODUCE LARGE HAIL AND POSSIBLY
DAMAGING WIND GUSTS. IN ADDITION...HEAVY DOWNPOURS COULD RESULT IN
FLOODING OF POOR DRAINAGE AREAS OR SMALL STREAMS AND CREEKS.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ035>037-056-057-065-068>072-082-501>510-160015-
ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-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-
808 PM EDT MON MAY 14 2012

...FLASH FLOOD WATCH IN EFFECT UNTIL 6 AM EDT TUESDAY...

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

.DAY ONE...TONIGHT.

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

   FLASH FLOOD WATCH.

SCATTERED TO NUMEROUS THUNDERSTORMS WILL REMAIN OVER THE REGION
THROUGH THE EVENING HOURS. SOME OF THESE STORMS COULD BECOME
STRONG TO SEVERE...CAPABLE OF PRODUCING HAIL AND STRONG GUSTY
WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE WESTERN
CAROLINAS AND NORTHEAST GEORGIA AGAIN TUESDAY AFTERNOON AND
EVENING. A FEW OF THESE STORMS MAY PRODUCE LARGE HAIL AND POSSIBLY
DAMAGING WIND GUSTS. IN ADDITION...HEAVY DOWNPOURS COULD RESULT IN
FLOODING OF POOR DRAINAGE AREAS OR SMALL STREAMS AND CREEKS.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, May 14, 7:13 PM EST, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
813 PM EDT MON MAY 14 2012

NCZ036-057-150100-
IREDELL-ROWAN-
813 PM EDT MON MAY 14 2012

...THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL AFFECT SOUTHERN
IREDELL AND WESTERN ROWAN COUNTIES THROUGH 900 PM EDT...

AT 806 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER SOUTHERN IREDELL AND
WESTERN ROWAN COUNTY.

HEAVY RAIN WILL IMPACT LOCATIONS NEAR...
  MOORESVILLE...
  ENOCHVILLE...
  CLEVELAND...

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 3552 8058 3551 8086 3552 8090 3551 8095
      3553 8094 3558 8095 3559 8093 3561 8094
      3571 8076 3584 8069 3582 8057 3579 8053

LANE

Special weather statement, May 14, 7:21 PM EST, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
821 PM EDT MON MAY 14 2012

SCZ005-010-150100-
ANDERSON-GREATER PICKENS-
821 PM EDT MON MAY 14 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN ANDERSON AND SOUTHERN
PICKENS COUNTIES THROUGH 900 PM EDT...

AT 821 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CENTRAL...OR 3 MILES NORTHEAST OF CLEMSON...
MOVING EAST AT 15 MPH.

THIS STORM WILL BE NEAR...
  LIBERTY...
  PIEDMONT...

PEA SIZE HAIL AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3463 8285 3464 8283 3470 8286 3481 8285
      3482 8248 3477 8245 3475 8246 3468 8245
      3467 8247 3459 8243

HG

Special weather statement, May 14, 7:34 PM EST, 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
834 PM EDT MON MAY 14 2012

NCZ071-SCZ009-150115-
MECKLENBURG-YORK-
834 PM EDT MON MAY 14 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN YORK AND SOUTHWESTERN
MECKLENBURG COUNTIES THROUGH 915 PM EDT...

AT 835 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES WEST OF ROCK HILL...MOVING EAST AT 20
MPH.

THIS STORM WILL BE NEAR...
  ROCK HILL...
  TEGA CAY...
  LAKE WYLIE...
  FORT MILL...
  CAROWINDS...
  PINEVILLE...

PEA SIZE HAIL AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3500 8084 3505 8089 3501 8090 3495 8086
      3493 8086 3485 8114 3502 8122 3519 8090
      3501 8082

HG

Local storm report, May 14, 7:48 PM EST, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
848 PM EDT MON MAY 14 2012

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

0827 PM     HAIL             WAXHAW                  34.92N 80.74W
05/14/2012  M1.75 INCH       UNION              NC   911 CALL CENTER

            GOLF BALL SIZED HAIL IN WAXHAW

&&

JOH

Local storm report, May 14, 7:50 PM EST, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
850 PM EDT MON MAY 14 2012

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

0829 PM     HAIL             6 NE WAXHAW             34.99N 80.67W
05/14/2012  E1.00 INCH       UNION              NC   PUBLIC

            PUBLIC REPORTS QUARTER SIZED HAIL.

&&

JOH

Local storm report, May 14, 7:54 PM EST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
854 PM EDT MON MAY 14 2012

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

0835 PM     HAIL             MONROE                  34.99N 80.54W
05/14/2012  M1.00 INCH       UNION              NC   PUBLIC

            PUBLIC REPORTS QUARTER SIZED HAIL.

&&

JOH

The radar

The Greer radar (KGSP), 38 km away, was scanning. The volume nearest the first event began at 01:09 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Anderson

When: May 14, 8:10 PM EST
Where: Anderson County, Williamston
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 34.620, -82.480

A tree and large limbs were blown down in the Williamston area.

What these are

Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in South Carolina in 2012 Every state in 2012 This day in weather history Warnings in South Carolina, May 2012

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 385787.