South Carolina, 2011

Damaging Winds in South Carolina, July 13, 2011

July 13, 2011 · NWS GSP · 7 events in 5 counties and zones

A disorganized line of thunderstorms moved into the northwest piedmont of South Carolina, producing some wind damage. Other discrete storms developed over the central and western upstate, which also caused some wind damage.

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
7

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.

A disorganized line of thunderstorms moved into the northwest piedmont of South Carolina, producing some wind damage. Other discrete storms developed over the central and western upstate, which also caused some wind damage.

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 Jul 13, 1:57 PM EST, 1 hour 3 minutes earlier.

Area forecast discussion, Jul 13, 1:57 PM EST, 1 hour 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
257 PM EDT WED JUL 13 2011

.SYNOPSIS...
A COLD FRONT WILL DRIFT SLOWLY FROM NORTH TO SOUTH ACROSS OUR AREA
TONIGHT AND THURSDAY.  A RIDGE OF SURFACE HIGH PRESSURE WILL BRING
COOLER AIR DOWN THE EAST COAST INTO THE WEEKEND.  A STRONG UPPER
RIDGE WILL BUILD IN FROM THE MISSISSIPPI VALLEY NEXT WEEK AND RETURN
OUR REGION TO ABOVE NORMAL TEMPERATURES.

&&

.NEAR TERM /THROUGH THURSDAY NIGHT/...
AT THE SFC...A SHALLOW TROF WILL EXIST PRIMARILY ALONG AND NORTH OF
THE I-20 CORRIDOR THIS AFTERNOON AND EVENING. A SLOW MOVING WEST TO
EAST COLD FRONT WILL SLOWLY DRIFT SOUTH ACROSS THE MID APPALACHIAN
REGION...REMAINING WELL NORTH OF THE CWA. ALOFT...H7 TO H5 RIDGE
WILL BREAK DOWN SLIGHTLY ACROSS THE SOUTHEAST. DEWPOINTS IN THE LOW
TO MID 70S AND TEMPS IN THE 90S SHOULD RESULT IN A VERY SHALLOW
LAYER OF CIN WITH MODERATE TO HIGH CAPE VALUES. AT A S/W SWINGS
ACROSS THE MID ATLANTIC THIS EVENING...MID LEVEL WINDS WILL INCREASE
ACROSS THE I-40 CORRDIOR WITH WEAK BAND OF FORCING. BASED ON THE
INSTABILITY AND FORCING...IT APPEARS THAT THE GREATEST SVR TSRA
POTENTIAL WILL OCCUR ACROSS I-40 CORRIDOR...HIGHLIGHTED WITH SVR
WATCH 638 UNTIL 10 PM.

OTHERWISE...EXPECT SCT COVERAGE ACROSS THE WESTERN CAROLINAS AND NE
GA...ESPECIALLY ACROSS THE MTNS. THE 12Z SOUNDINGS AT KGSO AND KFFC
OBSERVED HIGH FZL BETWEEN 15.2 TO 15.5 KFT WITH THE WBZ ABOVE 14
KFT. CORE HEIGHTS WILL REMAIN VERY ELEVATED...WITH THE 55 DBZ CORE
NEAR 30 KFT. BASED ON THE TEMPERATURE PROFILES AND MODERATE TO HIGH
CAPE IT APPEARS THAT A COUPLE OF SEVERE WET MICROBURSTS ARE
POSSIBLE.  IN ADDITION...PW BETWEEN 1.9 TO 2 INCHES AND SLOW STORM
MOTIONS COULD RESULT IN ISO AREAS OF HEAVY TO EXCESSIVE RAINFALL. WE
WILL CONTINUE TO MENTION DAMAGING WINDS AND HEAVY RAIN IN THE HWO.

DEWPOINTS WILL REMAIN ELEVATED ACROSS THE REGION BETWEEN THE TWO
SURFACE FEATURES...WITH THE HIGHEST VALUES EAST OF THE SFC TROF.
LATEST OBS ALONG AND EAST OF I-85 INDICATE HI VALUES OF 103 TO 105.
THE HEAT ADVISORY CONTINUES UNTIL 9 PM.

OVERNIGHT AND THURSDAY...A BACK DOOR COLD FRONT WILL SLIDE
SOUTH...REACHING THE CWA THURSDAY MORNING. BY THE AFTERNOON...THE
FRONT IS EXPECTED TO STALL ACROSS THE UPSTATE OF SC. MODELS ARE
QUITE ACTIVE WITH CONVECTION ALONG THE BOUNDARY. FAVORING THE
GFS...I WILL FAVOR THE UPPER SAVANNAH RIVER VALLEY AND NC MTNS FOR
POPS. THE LATEST DY2 SPC OUTLOOK INDICATES A GENERAL RISK. I WILL
FORECAST CHC POPS SW WITH SCHC NE. HIGH TEMPS SHOULD VERIFY SEVERAL
CATES BELOW VALUES OBSERVED EARLIER THIS WEEK...WITH U80S FAVORED.

&&

.SHORT TERM /FRIDAY/...
AS OF 130 PM WEDNESDAY...AS SFC RIDGING CONTINUES TO NOSE INTO
THE REGION...SHORT RANGE MODEL CONSENSUS DEPICTS DEEP LAYER RH BAND
LINGERING ATOP THE SW CWFA THURSDAY NIGHT. THE DEGREE OF E TO SE
925-850MB FLOW IS UNCERTAIN...BUT FOR NOW...WILL MAINTAIN CHANCE POPS
ACRS THE SOUTHERN AND WESTERN CWFA. DO NOT PREFER THE 12 UTC NAM
MASS FIELDS ON FRIDAY WITH THE DEVELOPMENT OF LOW PRESSURE ALONG THE
COASTAL FRONT. WILL FAVOR THE GFS/SREF SOLUTION IN DEVELOPING A WEAK
SELY 85H FLOW ALONG WITH PWAT VALUES CREEPING TO ABOVE NORMAL
LEVELS. GIVEN THIS...SENSIBLE WX WILL CONTINUE TO FEATURE SCATTERED
SHOWERS AND TSTMS...A MID CHANCE POP. GIVEN WEAK STEERING FLOW AND A
WEAK LLVL WAA/UPSLOPE FLOW...THERE REMAINS THE POSSIBILITY OF
LOCALLY HEAVY/EXCESSIVE RAIN. THE LATEST MOS BLEND CONTINUES TO
SUPPORT THE GOING COOLISH MAX...PERHAPS AS MUCH AS 5 DEG F BELOW
CLIMO. WILL CONTINUE TO FAVOR THE OP GFS/SREF MASS FIELDS FOR
SATURDAY AS WELL IN WHERE THEY LINGER SOME DEGREE OF SELY FLOW ABOVE
WEAK SFC RIDGE. WOULD EXPECT ONLY NOMINAL CHANGES TO THE ABV NORMAL
PWAT VALUES ATOP THE REGION...WHICH IN THEORY WOULD SUPPORT SIMILAR
DEEP CONVECTIVE DEVELOPMENT TO FRIDAY. AGAIN...WITH THE EXPECTED
CLOUDS...SHOWERS AND THE LINGERING EASTERLY FLOW...MAX TEMPERATURES
EXPECTED TO BE ABOUT 5 DEG F BELOW CLIMO ONCE AGAIN.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
AS OF 230 PM WEDNESDAY...AS THE CENTER OF THE SURFACE HIGH SHIFTS
FARTHER OFFSHORE...STILL EXPECT A WEAK MOIST FETCH FROM THE ATLANTIC
FEEDING IN ACROSS GEORGIA AND SOUTHERN SOUTH CAROLINA INTO SUNDAY.
THIS WEAK FLOW BREAKS DOWN BY LATE SUNDAY.  BOTH THE GFS AND ECMWF
HAVE A WEAK TROPICAL SYSTEM FORMING EAST OF JACKSONVILLE FLORIDA
SUNDAY AND SUNDAY NIGHT...BUT MOVES THIS OUT TO SEA AS THE UPPER
RIDGE BUILDS OVER THE MID MISSISSIPPI VALLEY.

GOING INTO DAY 6 AND 7...THERE WAS BIG DIFFERENCES BETWEEN THE GFS
AND ECMWF...AS THE GFS DUG AN UPPER TROUGH DOWN THE EAST COAST AS
THE ECMWF WAS BUILDING THE MISSISSIPPI RIDGE TOWARD THE CAROLINAS.
THE LATEST RUN OF THE GFS IS TRENDING TOWARD THE ECMWF WITH THE
RIDGE BUILDING IN FROM THE WEST.  THE CONSENSUS IS FOR THE
TEMPERATURES TO SLOWLY CLIMB BACK INTO THE 90S NEXT WEEK FOR THE
FOOTHILLS AND PIEDMONT AND AROUND 90 DEGREES FOR THE MOUNTAINS BY
MID WEEK.  A SHORTWAVE COMING AROUND THE TOP OF THE RIDGE MAY GIVE
MAINLY NC PIEDMONT SECTIONS A FEW SHOWERS AND STORMS WEDNESDAY
AFTERNOON. HOWEVER...BY THAT TIME THE RIDGE MAY SUPPRESS ALL ENERGY
TO OFF THE MID ATLANTIC COAST.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
AT KCLT AND ELSEWHERE...DEEP CONVECTION WILL FAVOR THE HIGH TERRAIN
AND UPPER SAVANNAH RIVER VALLEY THROUGH MID AFTERNOON. AS THE ATMOS
DESTABILIZES AND COOL POOLS ADVANCE COVERAGE WILL
INCREASE...ESPECIALLY ACROSS THE MTNS AND FOOTHILLS. I WILL INCLUDE
A CB MENTION FOR EVERY TAF SITE THIS AFTERNOON THROUGH MID EVENING.
LATE TONIGHT...TAF SITES EAST OF THE MTNS SHOULD REMAIN VFR...BUT
MVFR FOG IS POSSIBLE IF THE TERMINAL RECEIVES MEASURABLE RAIN. KAVL
WILL LIKELY SEE MVFR FOG OR LESS LATE TONIGHT...GIVEN A WARM CROSS
OVER TEMP. LIGHT NORTHEAST WINDS DEVELOPING THURSDAY MORNING WITH
SCT TO BKN DEBRIS CLOUDS.

OUTLOOK...SCATTERED DIURNAL CONVECTION AND EARLY MORNING FOG...
ESPECIALLY AT KAVL...CAN BE EXPECTED INTO THE WEEKEND. RIDGE BUILDS
IN FROM THE NE BEGINNING SUN WHICH SHOULD LIMIT CONVECTION TO SLIGHT
CHC FOR THE FIRST PART OF NEXT 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...HEAT ADVISORY UNTIL 9 PM EDT THIS EVENING FOR GAZ026-028-029.
NC...HEAT ADVISORY UNTIL 9 PM EDT THIS EVENING FOR NCZ071-072-082.
SC...HEAT ADVISORY UNTIL 9 PM EDT THIS EVENING FOR SCZ009>014-019.

&&

SYNOPSIS...DEO
NEAR TERM...NED
SHORT TERM...CSH
LONG TERM...DEO
AVIATION...NED
Hazardous weather outlook, Jul 13, 1:24 PM EST, 1 hour 36 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
224 PM EDT WED JUL 13 2011

GAZ010-017-018-NCZ033-048>053-058-059-062>065-068>070-501>510-
SCZ001>008-141830-
RABUN-HABERSHAM-STEPHENS-AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-
BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-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-
224 PM EDT WED JUL 13 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS WILL CONTINUE INTO THIS EVENING IN ASSOCIATION
WITH A WEAK COLD FRONT. THE MAIN THREATS WITH THESE STORMS WILL BE
FROM FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL.
HOWEVER...A FEW STORMS COULD PRODUCE BRIEF PERIODS OF LOCALLY
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

NCZ035>037-056-057-141830-
ALEXANDER-IREDELL-DAVIE-CATAWBA-ROWAN-
224 PM EDT WED JUL 13 2011

...SEVERE THUNDERSTORM WATCH 638 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

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

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

GAZ026-028-029-NCZ071-072-082-SCZ009>014-019-141830-
FRANKLIN-HART-ELBERT-MECKLENBURG-CABARRUS-UNION NC-YORK-ANDERSON-
ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
224 PM EDT WED JUL 13 2011

...HEAT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

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

.DAY ONE...THIS AFTERNOON 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.

SCATTERED THUNDERSTORMS WILL CONTINUE INTO THIS EVENING IN ASSOCIATION
WITH A WEAK COLD FRONT. THE MAIN THREATS WITH THESE STORMS WILL BE
FROM FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL.
HOWEVER...A FEW STORMS COULD PRODUCE BRIEF PERIODS OF LOCALLY
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Local storm report, Jul 13, 2:40 PM EST, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
340 PM EDT WED JUL 13 2011

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

0236 PM     TSTM WND DMG     2 E ELLENDALE           35.93N 81.24W
07/13/2011                   ALEXANDER          NC   911 CALL CENTER

            TREE DOWN ON CHURCH ROAD AT HWY 64.

&&

ZHARGROV
Special weather statement, Jul 13, 2:40 PM EST, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
340 PM EDT WED JUL 13 2011

SCZ014-132030-
CHESTER-
340 PM EDT WED JUL 13 2011

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN CHESTER COUNTY THROUGH
430 PM EDT...

AT 335 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CORNWELL...OR 7 MILES SOUTH OF CHESTER...
MOVING EAST AT 5 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO CORNWELL...
  CHESTER AND BLACKSTOCK.

VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.

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 3454 8097 3456 8129 3457 8132 3472 8125
      3465 8092

07
Special weather statement, Jul 13, 2:48 PM EST, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
348 PM EDT WED JUL 13 2011

NCZ056-068>070-504-132030-
CATAWBA-CLEVELAND-GASTON-GREATER BURKE-LINCOLN-
348 PM EDT WED JUL 13 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CLEVELAND...
NORTHWESTERN GASTON...SOUTHEASTERN BURKE...SOUTHWESTERN CATAWBA AND
WESTERN LINCOLN COUNTIES THROUGH 430 PM EDT...

AT 344 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHWEST OF COOKSVILLE...OR 16 MILES
WEST OF LINCOLNTON...MOVING SOUTHEAST AT 5 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO WACO...
  VALE...LINCOLNTON...FALLSTON...CROUSE...COOKSVILLE...CHERRYVILLE...
  CASAR AND BELWOOD.

VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.

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 3549 8122 3529 8141 3552 8165 3566 8155

07
Local storm report, Jul 13, 2:53 PM EST, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
353 PM EDT WED JUL 13 2011

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

0350 PM     TSTM WND DMG     MOCKSVILLE              35.90N 80.56W
07/13/2011                   DAVIE              NC   FIRE DEPT/RESCUE

            MULTIPLE POWERLINES DOWN.

&&

ZHARGROV
Local storm report, Jul 13, 3:00 PM EST, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
400 PM EDT WED JUL 13 2011

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

0325 PM     TSTM WND DMG     STATESVILLE             35.79N 80.89W
07/13/2011                   IREDELL            NC   EMERGENCY MNGR

            POWER LINES DOWN JUST EAST OF STATESVILLE ON TWIN OAKS
            ROAD.

&&

ZHARGROV
Special weather statement, Jul 13, 3:00 PM EST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
400 PM EDT WED JUL 13 2011

SCZ001-004-132045-
GREATER OCONEE-OCONEE MOUNTAINS-
400 PM EDT WED JUL 13 2011

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

AT 356 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES EAST OF LONG CREEK...OR 7 MILES WEST OF
WALHALLA...MOVING SOUTHEAST AT 10 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO
  WESTMINSTER...WALHALLA...SENECA...MOUNTAIN REST AND LONG CREEK.

VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.

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 8329 3481 8327 3484 8327 3488 8321
      3488 8320 3490 8319 3491 8317 3473 8289
      3455 8310 3479 8333

07

The radar

The Columbia radar (KCAE), 74 km away, was scanning. The volume nearest the first event began at 19:58 UTC.

Open the radar archive at this moment

Event by event

7 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Chester

When
July 13, 3:00 PM EST
Where
Chester County, 1.33 mi WSW of Mc Keown
Measured
50 kt (58 mph) estimated gust
Reported by
County Official
Coordinates
34.610, -81.200

A tree was blown down on Cornwell Rd and another tree down on highway 321. Both events happened within a mile of Cornwell.

Thunderstorm Wind, Chester

When
July 13, 3:30 PM EST
Where
Chester County, Bascomville
Measured
50 kt (58 mph) estimated gust
Reported by
Law Enforcement
Coordinates
34.700, -80.970

A tree was blown down at the intersection of highways 9 and 99 and another was blown down near the intersection of Beaver Dam Rd and highway 99.

Thunderstorm Wind, Union

When
July 13, 3:49 PM EST
Where
Union County, 1.33 mi ESE of Union
Measured
50 kt (58 mph) estimated gust
Reported by
Department of Highways
Coordinates
34.710, -81.600

A tree was blown down on Sims Ave on the east side of town, and another on Beltline Rd about 4 miles east of town.

Thunderstorm Wind, Cherokee

When
July 13, 3:52 PM EST
Where
Cherokee County, 2.65 mi WNW of Blacksburg
Measured
50 kt (58 mph) estimated gust
Reported by
Trained Spotter
Coordinates
35.140, -81.540

Several small trees were snapped about two miles northwest of Blacksburg.

Thunderstorm Wind, Greenwood

When
July 13, 3:55 PM EST
Where
Greenwood County, 1.34 mi ENE of Greenwood
Measured
50 kt (58 mph) estimated gust
Reported by
County Official
Coordinates
34.190, -82.150

Multiple trees were blown down in and around Greenwood.

Thunderstorm Wind, Greenwood

When
July 13, 4:25 PM EST
Where
Greenwood County, 1.33 mi WSW of Ware Shoals
Measured
50 kt (58 mph) estimated gust
Reported by
Department of Highways
Coordinates
34.390, -82.270

Multiple trees were blown down on Haynes Rd.

Thunderstorm Wind, Laurens

When
July 13, 4:31 PM EST
Where
Laurens County, 0.9 mi SE of Tylersville
Measured
50 kt (58 mph) estimated gust
Reported by
Department of Highways
Coordinates
34.570, -81.910

A tree was blown down on Duncan Creek Church Rd about 8 miles northeast of town, and another tree was blown down at Bellview Church Rd and Bethany Church Rd 5 miles east northeast of town.

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

More

Every storm in South Carolina in 2011Every state in 2011This day in weather historyWarnings in South Carolina, July 2011

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: 337690, 339745, 337694, 339746, 337697, 337708, 337711.