Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 587, NWS Greenville-Spartanburg, SC

August 11, 20114 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 11, 2011, 4:04 PM EDT for 4 counties in North Carolina. It was in force for 56 min. 6 reports 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: Aug 11, 2011, 4:04 PM EDT (20:04 UTC)
Expired: Aug 11, 2011, 5:00 PM EDT
In force: 56 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Cabarrus County, NC, Iredell County, NC, Lincoln County, NC, Mecklenburg County, NC

The radar

The Greer radar (KGSP), 131 km from the middle of the area, began a volume at 20:05 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
Aug 11, 4:06 PM EDT	TSTM WND DMG	Davidson, NC	SEVERAL LARGE LIMBS AND AT LEAST ONE PINE TREE DOWN ALONG WITH SOME POWERLINES DOWN IN DAVIDSON. THE TIME WAS OBTAINED FROM DOPPLER VELOCITY DATA AS THE WIND MAX CROSSED DAVIDSON.
Aug 11, 4:10 PM EDT	TSTM WND DMG	Davidson, NC	DAVIDSON P.D. REPORTS 10 TO 15 TREES BLOWN DOWN OR TOPPED BY WIND ALONG MAIN STREET. RAIL FENCE LEVELED BY WIND AS WELL.
Aug 11, 4:15 PM EDT	TSTM WND DMG	Cornelius, NC	TREES AND POWER LINES DOWN ALONG BETHEL CHURCH ROAD.
Aug 11, 4:18 PM EDT	TSTM WND DMG	Huntersville, NC	TREES AND POWER LINES DOWN ALONG OLD STATESVILLE ROAD.
Aug 11, 4:26 PM EDT	TSTM WND DMG	6 Wsw Concord, NC	SIX AIRCRAFT DAMAGED AND ONE TREE DOWN AT KJQF CONCORD REGIONAL AIRPORT.
Aug 11, 4:40 PM EDT	TSTM WND DMG	4 Sw Concord, NC	SPOTTER TOOK A PHOTOGRAPH OF APPROACHING STORM AT FIRE DEPARTMENT WHICH VERIFIED THIS TIME. SEVERAL LARGE LIMBS WERE DOWNED FROM THIS STORM AS IT WENT THROUGH THE AREA. NOT FAR FROM CONCORD MILLS MALL.

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 6 storm reports to this severe thunderstorm warning; the first came 2 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.1 hours before the alert went out and 121 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: 2 J/kg
Mixed-layer CIN: -203 J/kg
Mixed-layer LCL: 1602 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -103 m²/s²
0-3 km storm-relative helicity: -69 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.

874 
WUUS52 KGSP 112004
SVRGSP
NCC025-097-109-119-112100-
/O.NEW.KGSP.SV.W.0587.110811T2004Z-110811T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
404 PM EDT THU AUG 11 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CABARRUS COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  SOUTHEASTERN IREDELL COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  SOUTHEASTERN LINCOLN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 500 PM EDT

* AT 400 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
  CORNELIUS...OR 16 MILES NORTHWEST OF UNC CHARLOTTE...MOVING
  SOUTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HUNTERSVILLE...
  CROFT...
  CHARLOTTE MOTOR SPEEDWAY AND I-77 AT I-85...
  UNC CHARLOTTE AND CENTER CITY CHARLOTTE...
  HARRISBURG...
  EASTLAND MALL...

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 3508 8084 3535 8096 3536 8092 3537 8096
      3537 8097 3538 8098 3540 8096 3540 8099
      3549 8103 3562 8086 3530 8047
TIME...MOT...LOC 2004Z 325DEG 16KT 3547 8088

$$
ARK

2 follow-up statements

494 
WWUS52 KGSP 112029
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
429 PM EDT THU AUG 11 2011

NCC097-109-112039-
/O.CAN.KGSP.SV.W.0587.000000T0000Z-110811T2100Z/
IREDELL NC-LINCOLN NC-
429 PM EDT THU AUG 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LINCOLN AND
SOUTHEASTERN IREDELL COUNTIES IS CANCELLED...

LAT...LON 3508 8084 3535 8096 3536 8092 3538 8098
      3539 8096 3544 8096 3545 8094 3549 8095
      3552 8090 3551 8081 3551 8072 3530 8047
TIME...MOT...LOC 2029Z 315DEG 19KT 3538 8074

$$

NCC025-119-112100-
/O.CON.KGSP.SV.W.0587.000000T0000Z-110811T2100Z/
CABARRUS NC-MECKLENBURG NC-
429 PM EDT THU AUG 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR MECKLENBURG AND WESTERN CABARRUS COUNTIES...

AT 426 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 5 MILES NORTHEAST OF CROFT...OR 6 MILES NORTH OF UNC
CHARLOTTE...MOVING SOUTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO I-77 AT
I-85...CENTER CITY CHARLOTTE...CHARLOTTE MOTOR SPEEDWAY...
HARRISBURG...SOUTHPARK MALL AND EASTLAND MALL

LAT...LON 3508 8084 3535 8096 3536 8092 3538 8098
      3539 8096 3544 8096 3545 8094 3549 8095
      3552 8090 3551 8081 3551 8072 3530 8047
TIME...MOT...LOC 2029Z 315DEG 19KT 3538 8074

$$

ARK

615 
WWUS52 KGSP 112054
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
454 PM EDT THU AUG 11 2011

NCC025-119-112103-
/O.EXP.KGSP.SV.W.0587.000000T0000Z-110811T2100Z/
CABARRUS NC-MECKLENBURG NC-
454 PM EDT THU AUG 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR MECKLENBURG AND WESTERN
CABARRUS COUNTIES WILL EXPIRE AT 500 PM EDT...

THE STORM THAT HAD PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LIMITS...BUT IS STILL PRODUCING VERY RAIN AND GUSTY WINDS TO 40 TO 
50 MPH.

LAT...LON 3508 8084 3535 8096 3536 8092 3538 8098
      3539 8096 3544 8096 3545 8094 3549 8095
      3552 8090 3551 8081 3551 8072 3530 8047
TIME...MOT...LOC 2053Z 315DEG 19KT 3529 8063

$$

ARK

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 Aug 11, 2:47 PM EDT, 1 hour 17 minutes earlier.

Area forecast discussion, Aug 11, 2:47 PM EDT, 1 hour 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
247 PM EDT THU AUG 11 2011

.SYNOPSIS...
HIGH PRESSURE WILL MOVE FROM THE OHIO VALLEY TODAY TO THE EAST COAST
ON FRIDAY. A COLD FRONT WILL THEN APPROACH THE AREA FROM THE
NORTHWEST LATE SATURDAY AND MOVE OVER THE CAROLINAS EARLY SUNDAY
BRINGING SHOWERS AND THUNDERSTORMS.

&&

.NEAR TERM /THROUGH FRIDAY/...
EXPECT THE CONVECTION DEVELOPING ALONG THE BLUE RIDGE TO MOVE SOUTH
AND EAST INTO THE FOOTHILLS AND PIEDMONT THRU THE AFTERNOON.
ADDITIONAL CONVECTION WILL DEVELOP OVER THE SRN UPSTATE NEAR A WEAK
LOW PRESSURE AND SFC BOUNDARY. THIS SHOULD LEAD TO AT LEAST SCT
COVERAGE ACROSS MOST OF THE CWFA UNTIL EVENING. SOME OF THE STORMS
COULD BE SEVERE GIVEN THE MODERATE SHEAR AND INSTABILITY ACROSS THE
AREA.

OVERNIGHT...EXPECT THE CONVECTION TO DISSIPATE BUT SHOWERS COULD
LINGER THRU THE NIGHT...ESP IN NC...DUE TO CONTINUED LOW LEVEL SELY
FLOW AND DECENT LOW LEVEL MOISTURE. CLOUDS SHOULD LINGER AS WELL
HELPING TO KEEP LOWS AROUND NORMAL.

WEAK SHORT WAVE ENERGY MOVES ACROSS THE AREA FRIDAY IN THE LINGERING
UPPER TROF. AT THE SFC...AN INVERTED TROF DEVELOPS OVER THE AREA
BETWEEN HIGH PRESSURE PASSING BY TO THE NORTH AND A WEAK LOW
PRESSURE CENTER OVER SRN GA. LOW LEVEL FLOW WILL REMAIN SELY WITH
CONTINUED LOW LEVEL MOISTURE. EXPECT CONVECTION TO DEVELOP ONCE
AGAIN AND COULD BE EVEN MORE WIDESPREAD THAN THU. HAVE KEPT POP AT
SCT COVERAGE FOR NOW...BUT LIKELY MAY BE NEEDED OUTSIDE OF THE MTNS.
WITH THE LINGERING CLOUDS AND LOWER THICKNESSES...HIGH TEMPS WILL BE
RIGHT AROUND NORMAL.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
AS OF 130 PM THURSDAY...THE SHORT TERM FCST PICKS UP AT 00Z ON
SATURDAY WITH THE BEGINNING OF A MARKEDLY MORE ACTIVE PERIOD.
VARIOUS LOBES OF SHORTWAVE ENERGY IN THE MID/UPPER LVLS PROPAGATE
TOWARDS THE FCST AREA AS THE UPPER LVL TROF DIGS DOWN OVER THE UPPER
MISS RIVER VALLEY AND ARRIVES AT OUR DOORSTEP BY 00Z SUNDAY. ON
SATURDAY...THE SFC HIGH SLIDES OFF THE ATLANTIC SEABOARD CAUSING OUR
LOW LVL WINDS TO CONTINUE TO VEER AROUND TO SOUTHERLY. LOW AND MID
LVL MOISTURE WILL QUICKLY RAMP UP IN THE AFTERNOON/EVENING WITH PWAT
VALUES INCREASING ABOVE CLIMATOLOGY. LATEST MODEL SOUNDINGS GENERATE
SOME HEALTHY INSTABILITY OVER MOST OF THE CWFA...HOWEVER BEST
FORCING AND MOISTURE INFLUX IS EXPECTED SUNDAY MORNING DURING THE
MINIMUM INSOLATION PERIOD. REGARDLESS...BY SAT EVENING I RAMP POPS
UP TO LIKELY OVER MOST OF THE NC MTS AND HIGH END SOLID CHANCE
ELSEWHERE. TEMPS SHOULD BE RIGHT AROUND CLIMO WITH HIGHS AROUND 90
OVER THE LOWER ELEVATIONS AND LOW TO MID 80S FOR THE MTS. ON
SUNDAY...THE FRONTAL BOUNDARY WILL MOVE OVER THE FCST AREA EARLY
WITH COOLER AND DRIER NWLY FLOW IN ITS WAKE. I EXPECT WIDESPREAD
SHOWERS AND TS WITH SOME ORGANIZED SVR POTENTIAL...HOWEVER THE BEST
DYNAMICS DO NOT COINCIDE WITH THE BEST HEATING...SO INSTABILITY WILL
BE SOMEWHAT MINIMAL DURING THE FROPA. THINGS WILL DRY OUT SUNDAY
EVENING AS THE FRONT MOVES SE OF THE CWA AND I LOWER POPS TO CHANCE
OVER THE MTS FOR ANY LINGERING NW FLOW MOISTURE. TEMPS WILL LIKELY
BE A BIT BELOW CLIMO WITH THE WIDESPREAD CLOUD COVER AND PRECIP.

&&

.LONG TERM /SUNDAY NIGHT THROUGH WEDNESDAY/...
AT 2 PM EDT THURSDAY...AN UPPER TROUGH WILL REMAIN ALONG THE EAST
COAST FROM MONDAY THROUGH THURSDAY. A COLD FRONT WILL DEPART OUR
AREA TO THE SOUTHEAST ON SUNDAY NIGHT...THEN RELATIVELY COOL AND DRY
HIGH PRESSURE WILL BUILD OVER THE AREA FROM THE NORTHEAST THROUGH
THURSDAY. POPS WILL BE MINIMAL...AND MAINLY BASED IN THE MOUNTAINS
FOR OROGRAPHIC EFFECTS. TEMPERATURES WILL RESEMBLE LATE SUMMER OF
EARLY AUTUMN.

&&

.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
AT KCLT AND ELSEWHERE...LINE OF TSRA FORMING ALONG THE BLUE RIDGE
WILL SPREAD EAST AND SOUTH THRU THE AFTERNOON. HAVE INCLUDED CB
EVERY SITE WITH TEMPO TS AT KHKY WHERE TSRA IS NEARBY. WILL AMD
OTHER STIES AS NEEDED. OTHERWISE...EXPECT VFR CIGS TO DEVELOP THIS
AFTERNOON AND CONTINUE OVERNIGHT AS SELY FLOW ACTS ON LINGERING LOW
LEVEL MOISTURE. EVEN THE MORE BULLISH NAM KEEPS CIGS AT TAF SITES
VFR...SO HAVE GONE THAT WAY AS WELL. BEST CHC FOR ANY FOG IS AT
KAVL. DID NOT MENTION ANY SHRA BUT THEY COULD LINGER OVERNIGHT AT
THE NC SITES AS WELL. EXPECT AN EVEN BETTER DAY FOR CONVECTION FRI
BUT TOO EARLY TO INCLUDE IN TAFS ATTM. KEPT VFR CIGS THRU THE
PERIOD. WINDS ARE TRICKY WITH WEAK LOW PRESSURE AND LEE TROF IN
PLACE. HAVE TRENDED TOWARD A MDL BLEND WITH E TO SE WIND BECOMING NE
OVERNIGHT. KAVL THE EXCEPTION WHERE N WIND CONTINUES.

OUTLOOK...EVEN BETTER CONVECTION CHANCES SATURDAY AND SUNDAY. A COLD
FRONT SHOULD BRING MUCH DRIER WEATHER MON AND TUE.

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...JPT
NEAR TERM...RWH
SHORT TERM...JPT
LONG TERM...JAT
AVIATION...RWH

Hazardous weather outlook, Aug 11, 3:32 PM EDT, 32 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
332 PM EDT THU AUG 11 2011

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-121945-
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-
332 PM EDT THU AUG 11 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 ARE LIKELY TO DEVELOP OVER THE REGION
LATE THIS AFTERNOON AND INTO TONIGHT. SOME OF THESE STORMS COULD
BECOME SEVERE AND PRODUCE DAMAGING WINDS AND SMALL HAIL.

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

A MODERATE COLD FRONT WILL MOVE ACROSS THE AREA LATER THIS WEEKEND.
SCATTERED TO WIDESPREAD THUNDERSTORMS IN ADVANCE OF THIS FRONT ARE
EXPECTED SATURDAY AFTERNOON THROUGH SUNDAY. SOME OF THESE
THUNDERSTORMS COULD BECOME SEVERE AND PRODUCE DAMAGING WIND...HAIL...AND
HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

NONE.

JPT

In the hours before

Special weather statement, Aug 11, 2:45 PM EDT, 1 hour 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
245 PM EDT THU AUG 11 2011

SCZ007-111930-
SPARTANBURG-
245 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SPARTANBURG COUNTY
THROUGH 330 PM EDT...

AT 239 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHWEST OF INMAN...OR 12 MILES WEST OF
SPARTANBURG...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO WELLFORD...
  SPARTANBURG...ROEBUCK...PAULINE...LYMAN...INMAN...DUNCAN...
  COWPENS...CAMPOBELLO AND BOILING SPRINGS SC.

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 3495 8222 3500 8222 3512 8215 3501 8178
      3497 8177 3478 8187

07

Special weather statement, Aug 11, 2:48 PM EDT, 1 hour 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
248 PM EDT THU AUG 11 2011

SCZ012-019-111930-
GREENWOOD-LAURENS-
248 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN GREENWOOD AND
SOUTHERN LAURENS COUNTIES THROUGH 330 PM EDT...

AT 245 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WATERLOO...OR 11 MILES SOUTH OF LAURENS...
MOVING SOUTHEAST AT 10 MPH.

THIS STORM WILL BE NEAR...
  LAKE GREENWOOD...
  CROSS HILL...

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

LAT...LON 3413 8188 3431 8221 3447 8212 3437 8178
      3436 8179 3434 8183 3431 8186 3430 8189
      3422 8192 3421 8194 3418 8190

ARK

Local storm report, Aug 11, 2:49 PM EDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
249 PM EDT THU AUG 11 2011

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

0154 PM     HAIL             5 S LENOIR              35.83N 81.53W
08/11/2011  E1.00 INCH       CALDWELL           NC   DEPT OF HIGHWAYS

            QUARTER SIZE HAIL NEAR HWY 321-A AND CONNELLY SPRINGS RD.

&&

ZHARGROV

Special weather statement, Aug 11, 3:28 PM EDT, 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
328 PM EDT THU AUG 11 2011

NCZ036-056-069-071-072-112015-
CABARRUS-CATAWBA-IREDELL-LINCOLN-MECKLENBURG-
328 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN LINCOLN...NORTHERN
MECKLENBURG...NORTHWESTERN CABARRUS...SOUTHEASTERN CATAWBA AND
SOUTHERN IREDELL COUNTIES THROUGH 415 PM EDT...

AT 327 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES WEST OF TERRELL...OR 12 MILES SOUTHEAST
OF NEWTON...MOVING SOUTHEAST AT 15 MPH.

THIS STORM WILL BE NEAR...
  TERRELL...
  LAKE NORMAN...
  MOORESVILLE...
  CORNELIUS...
  HUNTERSVILLE...

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

LAT...LON 3532 8081 3556 8119 3571 8107 3557 8074
      3551 8073 3551 8069 3550 8066

ARK

Special weather statement, Aug 11, 3:29 PM EDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
329 PM EDT THU AUG 11 2011

SCZ007-112015-
SPARTANBURG-
329 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SPARTANBURG COUNTY
THROUGH 415 PM EDT...

AT 326 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES EAST OF REIDVILLE...OR 8 MILES SOUTHWEST
OF SPARTANBURG...MOVING EAST AT 10 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO WELLFORD...
  SPARTANBURG...ROEBUCK...REIDVILLE...PAULINE...PACOLET AND MOORE.

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 3483 8218 3500 8210 3491 8172 3483 8179
      3481 8179 3468 8183

07

Special weather statement, Aug 11, 3:34 PM EDT, 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
334 PM EDT THU AUG 11 2011

NCZ068-508-112015-
CLEVELAND-GREATER RUTHERFORD-
334 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN RUTHERFORD AND
NORTHERN CLEVELAND COUNTIES THROUGH 415 PM EDT...

AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES EAST OF SUNSHINE...OR 14 MILES NORTHEAST
OF RUTHERFORDTON...MOVING SOUTHEAST AT 15 MPH.

THIS STORM WILL BE NEAR...
  CASAR...
  POLKVILLE...
  LAWNDALE...

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

LAT...LON 3541 8145 3538 8142 3537 8192 3552 8210
      3553 8209 3554 8198 3552 8197 3554 8188
      3557 8153

ARK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 1:02 PM EDT	Special Weather Statement	GSP	Caldwell	43 min
Aug 11, 1:46 PM EDT	Special Weather Statement	GSP	Caldwell	44 min
Aug 11, 1:49 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell, Catawba	56 min
Aug 11, 2:11 PM EDT	Special Weather Statement	GSP	Alexander	49 min
Aug 11, 2:12 PM EDT	Special Weather Statement	GSP	Burke	48 min
Aug 11, 2:23 PM EDT	Special Weather Statement	GSP	Davie	52 min
Aug 11, 2:44 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba, Cleveland, Gaston, Lincoln	61 min
Aug 11, 2:53 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Davie, Rowan	52 min
Aug 11, 3:28 PM EDT	Special Weather Statement	GSP	Lincoln	47 min
Aug 11, 3:34 PM EDT	Special Weather Statement	GSP	Rutherford	41 min
Aug 11, 4:07 PM EDT	Special Weather Statement	GSP	Cleveland	38 min
Aug 11, 4:31 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Mecklenburg	59 min
Aug 11, 4:56 PM EDT	Special Weather Statement	GSP	Cabarrus	49 min
Aug 11, 5:25 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Mecklenburg, Union	65 min
Aug 11, 6:12 PM EDT	Severe Thunderstorm Warning	GSP	Union	63 min
Aug 11, 7:56 PM EDT	Special Weather Statement	GSP	Avery	49 min

Nearby

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.