Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 583, NWS Greenville-Spartanburg, SC

August 11, 20115 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 11, 2011, 2:44 PM EDT for 5 counties in North Carolina. It was in force for 61 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
Aug 11, 2011, 2:44 PM EDT (18:44 UTC)
Expired
Aug 11, 2011, 3:45 PM EDT
In force
61 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Burke County, NC, Catawba County, NC, Cleveland County, NC, Gaston County, NC, Lincoln County, NC

The radar

The Greer radar (KGSP), 107 km from the middle of the area, began a volume at 18:45 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

TimeReportWhereRemark
Aug 11, 2:49 PM EDTTSTM WND DMG2 Ene Casar, NCTWO TREES DOWN ON HWY 10 IN BETWEEN CASAR AND TOLUCA.

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 5 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, 6.7 hours before the alert went out and 142 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, Greensboro/Hi Pt, NC at 12:00Z on 2011-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Greensboro/Hi Pt, NC at 12:00Z on 2011-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -103 square meters per square second.19395878Sfc1 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
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.

096 
WUUS52 KGSP 111844
SVRGSP
NCC023-035-045-071-109-111945-
/O.NEW.KGSP.SV.W.0583.110811T1844Z-110811T1945Z/

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

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CATAWBA COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  NORTHEASTERN CLEVELAND COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  NORTHWESTERN GASTON COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  LINCOLN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  SOUTHEASTERN BURKE COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 345 PM EDT

* AT 240 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 4 MILES
  SOUTHWEST OF COOKSVILLE...OR 15 MILES SOUTHEAST OF MORGANTON...
  MOVING SOUTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BELWOOD...
  VALE AND FALLSTON...
  WACO...
  CROUSE AND CHERRYVILLE...
  LINCOLNTON AND BOGER CITY...
  HIGH SHOALS AND IRON STATION...

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 3548 8101 3524 8127 3554 8167 3568 8153
TIME...MOT...LOC 1844Z 309DEG 18KT 3555 8151

$$
ARK
3 follow-up statements
578 
WWUS52 KGSP 111906
SVSGSP

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

NCC023-111916-
/O.CAN.KGSP.SV.W.0583.000000T0000Z-110811T1945Z/
BURKE NC-
306 PM EDT THU AUG 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BURKE COUNTY IS
CANCELLED...

LAT...LON 3548 8101 3524 8127 3554 8167 3557 8164
      3557 8160 3556 8158 3557 8154 3560 8151
      3565 8145
TIME...MOT...LOC 1906Z 316DEG 10KT 3552 8151

$$

NCC035-045-071-109-111945-
/O.CON.KGSP.SV.W.0583.000000T0000Z-110811T1945Z/
CATAWBA NC-CLEVELAND NC-GASTON NC-LINCOLN NC-
306 PM EDT THU AUG 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR LINCOLN...NORTHWESTERN GASTON...NORTHEASTERN CLEVELAND AND
SOUTHWESTERN CATAWBA COUNTIES...

AT 302 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 4 MILES NORTH OF BELWOOD...OR 16 MILES WEST OF LINCOLNTON...
MOVING SOUTHEAST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VALE...
FALLSTON...WACO...IRON STATION...HIGH SHOALS...CROUSE...
CHERRYVILLE...BOGER CITY AND BESSEMER CITY

LAT...LON 3548 8101 3524 8127 3554 8167 3557 8164
      3557 8160 3556 8158 3557 8154 3560 8151
      3565 8145
TIME...MOT...LOC 1906Z 316DEG 10KT 3552 8151

$$

ARK
504 
WWUS52 KGSP 111920
SVSGSP

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

NCC035-111930-
/O.CAN.KGSP.SV.W.0583.000000T0000Z-110811T1945Z/
CATAWBA NC-
320 PM EDT THU AUG 11 2011

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

LAT...LON 3524 8127 3541 8148 3556 8156 3557 8155
      3557 8150 3556 8136 3556 8122 3548 8101
TIME...MOT...LOC 1920Z 312DEG 10KT 3550 8147

$$

NCC045-071-109-111945-
/O.CON.KGSP.SV.W.0583.000000T0000Z-110811T1945Z/
CLEVELAND NC-GASTON NC-LINCOLN NC-
320 PM EDT THU AUG 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR LINCOLN...NORTHWESTERN GASTON AND NORTHEASTERN CLEVELAND
COUNTIES...

AT 318 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
 THIS STORM WAS LOCATED 5 MILES SOUTHWEST OF VALE...OR 13 MILES WEST
OF LINCOLNTON...MOVING SOUTHEAST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO IRON
STATION...HIGH SHOALS...CROUSE...CHERRYVILLE...BOGER CITY AND
BESSEMER CITY

LAT...LON 3524 8127 3541 8148 3556 8156 3557 8155
      3557 8150 3556 8136 3556 8122 3548 8101
TIME...MOT...LOC 1920Z 312DEG 10KT 3550 8147

$$

ARK
351 
WWUS52 KGSP 111942
SVSGSP

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

NCC045-071-109-111951-
/O.EXP.KGSP.SV.W.0583.000000T0000Z-110811T1945Z/
CLEVELAND NC-GASTON NC-LINCOLN NC-
342 PM EDT THU AUG 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR LINCOLN...NORTHWESTERN GASTON
AND NORTHEASTERN CLEVELAND COUNTIES WILL EXPIRE AT 345 PM EDT...

THE STORM THAT HAD PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LIMITS...BUT WILL CONTINUE TO PRODUCE HEAVY RAIN...FREQUENT 
LIGHTNING AND GUSTY WINDS OF 30 TO 40 MPH.

LAT...LON 3524 8127 3541 8148 3556 8156 3557 8155
      3557 8150 3556 8136 3556 8122 3548 8101
TIME...MOT...LOC 1941Z 312DEG 10KT 3546 8142

$$

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, 1:46 PM EDT, 58 minutes earlier.

Area forecast discussion, Aug 11, 1:46 PM EDT, 58 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
146 PM EDT THU AUG 11 2011

.SYNOPSIS...
HIGH PRESSURE WILL MOVE FROM THE OHIO VALLEY TODAY TO THE EAST COAST
ON FRIDAY. INCREASINGLY MOIST SOUTHERLY FLOW WILL BE SEEN ON
SATURDAY AHEAD OF AN APPROACHING COLD FRONT WHOSE PASSAGE IS SLATED
FOR SUNDAY.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 1045 AM THURSDAY...PREVIOUS CLOUD DECK HAS CLEARED OUT AS
SHORT WAVE MOVES EAST OF THE AREA. HOWEVER...CLOUDS EXPECTED TO FILL
BACK IN AS CONVECTIVE CU DEVELOPS AND DEBRIS FROM THE MCS OVER AL
MOVES EASTWARD. WARM START AND EARLY SUN SHOULD HELP US REACH FCST
HIGHS...WHICH ARE SLIGHTLY COOLER ACROSS THE NORTH IN LINE WITH OBS
THICKNESSES AND H85 COLD FRONT MOVING INTO THE AREA. POP TRENDS LOOK
GOOD AS WELL AS LATEST GUIDANCE SUGGESTS CONVECTION INITIATING OVER
THE MTNS AND MOVING INTO THE FOOTHILLS/PIEDMONT THIS AFTERNOON.
BASICALLY LITTLE CHANGE IN FCST EXCEPT TO UPDATE CURRENT CONDITIONS.

PREVIOUS DISCUSSION.
A BROAD LONG WAVE TROUGH WILL REMAIN OVER THE ERN STATES THROUGH
TONIGHT. IT/S DEBATABLE WHERE THE SFC FEATURES ARE OVER THE REGION
RIGHT NOW. HPC IS ANALYZING A SFC FRONT OVER ERN NC...THE SC
MIDLANDS AND CENTRAL GA. THIS IS WHERE I/VE GOT IT AS WELL SINCE
THERE IS A WEAK WIND SHIFT A ABOUT A 10 DEGREE DEWPOINT GRADIENT
ACROSS THE FRONT. HOWEVER...GSP GOT UP TO 99 DEGREES YESTERDAY...NOT
EXACTLY A TYPICAL POST FROPA TEMPERATURE. I/M GOING TO STICK WITH
CALLING IT A /COLD/ FRONT. THERE IS A SECOND /COLD/ FRONT WHICH
HAS MORE OF A TEMPERATURE CONTRAST ALONG IT WHICH HAS HUNG UP OVER
ERN TN. DEWPOINTS HAVE POOLED A BIT ALONG THIS FEATURE...THOUGH
MODEL SOUNDINGS AND MOS NUMBERS SUPPORT DEWPOINTS STAYING NEAR
60...OVER THE FA TODAY.

THE GFS 1000-850 MB THICKNESSES REMAIN HIGH OVER THE SW PART OF THE
FA...WITH 1443M 100-850 MB THICKNESS CENTERED DOWN OVER ELBERT CO BY
00 UTC THIS EVENING. IN SHORT...IT SHOULD BE DRY AND HOT
AGAIN...ESPECIALLY ONCE A SOLID AC DECK CLEARS THE AREA. THIS SHOULD
HAPPEN A LITTLE AFTER 12 UTC AS AN ADVECTIVE SHORT WAVE MOVES E OF
THE FA. THE NAM IS FARTHER SOUTH WITH IT/S THICKNESS RIDGE...WHICH
GIVES IT/S LLVL WIND FIELD MORE OF A NE ORIENTATION...VS THE GFS
WHICH HAS S WINDS OVER THE ERN PART OF THE FA...AND NW ALONG THE TN
LINE. THE SREF SUPPORTS THE GFS...AS DO THE MAX TEMPS FROM YDAY. AND
THAT/S WHAT I/M GOING WITH. THE UPSHOT OF THIS IS CONVERGENCE SHOULD
BE SUFFICIENT ACROSS THE MTNS FOR SHRA TO DEVELOP THIS AFTN. THE
SHRA SHOULD SLOWLY PROGRESS TO THE E DURING THE EVENING...INTO THE
CONVERGENCE AXIS OUT ACROSS THE FOOTHILLS. HOWEVER...THE INSTABILITY
IS QUITE WEAK. I THINK THAT SPC/S 5 PERCENT SEVERE RISK OVER THE FA
IS TOO HIGH...AS IS HPC/S SMALL AREA OF .25 INCH BASIN AVERAGE QPF
OVER THE MTNS. I WON/T FEATURE ANY SEVERE WORDING IN THE HWO
TDA...AND MY QPF WILL BE LOWER. CHANCE POPS WILL BE CARRIED THIS
AFTERNOON...THROUGH LATE EVENING...BUT THEY WILL BE LOW CHANCE POPS.
AND I/LL STAY CLOSER TO THE WARMER MAV NUMBERS ACROSS THE FA TODAY.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY/...
AS OF 230 AM THURSDAY...STILL EXPECTING JUST SUBTLE VORT ENERGY TO
RIPPLE THRU THE NON-DESCRIPT WNW FLOW ALOFT ON FRIDAY. AT THE SFC...
WEAK HIPRES REMAINS PROGGED TO SHIFT OFFSHORE EFFECTIVELY VEERING
LLVL FLOW TO AN EASTERLY DIRECTION ATOP THE CWFA. WITH JUST NOMINAL
MOISTURE FLUX AND BLYR DWPT INCREASES...THE ATMOSPHERE SHOULD
REMAIN WEAKLY UNSTABLE. WEAK FORCING REGIME SHOULD KEEP DEEP
CONVECTIVE CVRG ISOLATED BUT SLIGHT CHANCES LINGERING INTO FRIDAY
NIGHT AS WEAK WAA/UPSLOPE FLOW CONTINUES TO DEVELOP AND LLVL
MOISTURE FLUX STEADILY INCREASES.

AS S/WV ENERGY DIVES TOWARD THE OHIO VALLEY ON SATURDAY...MID/UPPER
LVL FLOW ATOP THE CWFA WILL BECOME BROADLY DIFFLUENT...AND WELL
AHEAD OF LLVL FRONTAL ZONE WAA FLOW WILL ALSO STEADILY INCREASE.
MODEL PWAT VALUES INCREASE TO ABV CLIMO...AND IN COMBINATION WITH
THE ABOVE FORCING MECHANISMS...SHOULD LEAD TO SCATTERED TO NUMEROUS
DIURNALLY ENHANCED SHOWERS AND TSTMS.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
AS OF 325 AM THURSDAY...ALTHOUGH THE RESPONSE AMONG THE 00 UTC OP AND
ENS MODELS WITH RESPECT TO THE INCREASING FORCING...DEEP MOISTURE
AND FRONTAL ZONE PASSAGE SATURDAY NIGHT INTO SUNDAY IS VARIABLE...
VIRTUALLY EVERY SOLUTION HAS SOME DEGREE OF MODERATE RESPONSE...
ESPECIALLY WHERE TERRAIN LIFT IS MAXIMIZED. HARD TO BELIEVE THAT
THERE WILL NOT BE AT LEAST NUMEROUS DEEP CONVECTIVE CVRG...WITH
PERHAPS LOCALLY HEAVY RAIN.

BOTH THE 00 UTC OP GFS AND ECMWF TIME DRY SLOT THRU THE CWFA SUNDAY
NIGHT LEAVING JUST A TOKEN WRAP-AROUND SHOWER THREAT ACRS MY NORTHERN
TIER OF CNTYS INTO MONDAY...OTHERWISE A DRY POST-FRONT AIRMASS IS
STILL PROGGED TO SETTLE OVER THE REGION TO START THE WORKWEEK.

EASTERN CONUS L/WV TROUGH AXIS WILL SLOWLY PROGRESS EASTWARD THRU
TUESDAY AND WEDNESDAY...AND SAVE FOR THE SMALL POTENTIAL FOR A FEW
DIURNAL MTN SHOWERS EACH DAY...EFFECTIVELY DRY NW FLOW WILL BE SEEN.

&&

.AVIATION /18Z 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...CSH
NEAR TERM...MCAVOY/RWH
SHORT TERM...CSH
LONG TERM...CSH/NED
AVIATION...RWH
Hazardous weather outlook, Aug 11, 6:00 AM EDT, 8 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
600 AM 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>014-019-121000-
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-
600 AM 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...TODAY AND TONIGHT.

A FEW THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE REGION
TODAY WITH THE PRIMARY THREAT BEING A FEW CLOUD TO GROUND
LIGHTNING STRIKES.

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

A MODERATE COLD FRONT WILL CROSS THE AREA LATER THIS WEEKEND.
SCATTERED STRONG THUNDERSTORMS IN ADVANCE OF THIS FRONT WILL BE
POSSIBLE SATURDAY AFTERNOON THROUGH SUNDAY. LOCALIZED AREAS OF
GUSTY WIND...HAIL AND HEAVY RAIN ARE PROBABLE.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, Aug 11, 1:02 PM EDT, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
102 PM EDT THU AUG 11 2011

NCZ501>504-111745-
BURKE MOUNTAINS-CALDWELL MOUNTAINS-GREATER BURKE-GREATER CALDWELL-
102 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BURKE AND SOUTHERN
CALDWELL COUNTIES THROUGH 145 PM EDT...

AT 1258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES WEST OF COLLETTSVILLE...OR 11 MILES WEST
OF LENOIR...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO RUTHERFORD
  COLLEGE...LAKE RHODHISS...EDGEMONT...VALDESE...SAWMILLS...LENOIR...
  HUDSON...GAMEWELL...CONNELLY SPRINGS...COLLETTSVILLE AND CAJAH'S
  MOUNTAIN.

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 3592 8135 3570 8149 3589 8186 3596 8181
      3604 8175 3604 8174

07
Special weather statement, Aug 11, 1:46 PM EDT, 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
146 PM EDT THU AUG 11 2011

NCZ035-056-502-504-111830-
ALEXANDER-CATAWBA-GREATER BURKE-GREATER CALDWELL-
146 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN BURKE...SOUTHERN
CALDWELL...SOUTHWESTERN ALEXANDER AND WESTERN CATAWBA COUNTIES
THROUGH 230 PM EDT...

AT 142 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CAJAH'S MOUNTAIN...OR 4 MILES SOUTH OF
LENOIR...MOVING SOUTHEAST AT 10 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO RUTHERFORD
  COLLEGE...LAKE RHODHISS...LAKE HICKORY...VALDESE...SAWMILLS...
  RHODHISS...LONGVIEW...LENOIR...ICARD...HUDSON...HILDEBRAN...
  HICKORY...GRANITE FALLS...GAMEWELL...CONNELLY SPRINGS...CAJAH'S
  MOUNTAIN AND BETHLEHEM.

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 3586 8123 3564 8137 3581 8170 3597 8160
      3597 8159

07
Special weather statement, Aug 11, 2:11 PM EDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
211 PM EDT THU AUG 11 2011

NCZ035-036-056-502-111900-
ALEXANDER-CATAWBA-GREATER CALDWELL-IREDELL-
211 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN CATAWBA...SOUTHEASTERN
CALDWELL...SOUTHERN ALEXANDER AND WESTERN IREDELL COUNTIES THROUGH
300 PM EDT...

AT 207 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTH OF BETHLEHEM...OR 7 MILES SOUTHWEST
OF TAYLORSVILLE...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO LOOKOUT
  SHOALS LAKE...LAKE HICKORY...TAYLORSVILLE...STONY POINT...ST.
  STEPHENS...SCOTTS...MILLERSVILLE...ELLENDALE...CONOVER...
  CLAREMONT...CATAWBA AND BETHLEHEM.

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 3584 8093 3563 8108 3583 8143 3598 8133

07
Special weather statement, Aug 11, 2:12 PM EDT, 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
212 PM EDT THU AUG 11 2011

NCZ056-068-069-504-111900-
CATAWBA-CLEVELAND-GREATER BURKE-LINCOLN-
212 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CLEVELAND...
SOUTHEASTERN BURKE...SOUTHWESTERN CATAWBA AND WESTERN LINCOLN
COUNTIES THROUGH 300 PM EDT...

AT 207 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES WEST OF PLEASANT GROVE...OR 6 MILES SOUTH
OF MORGANTON...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO VALE...
  PLEASANT GROVE...MORGANTON...COOKSVILLE...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 3566 8128 3541 8140 3542 8146 3555 8170
      3558 8169 3561 8172 3560 8173 3561 8175
      3559 8178 3561 8180 3577 8171

07
Special weather statement, Aug 11, 2:23 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
223 PM EDT THU AUG 11 2011

NCZ036-037-111915-
DAVIE-IREDELL-
223 PM EDT THU AUG 11 2011

...A STRONG THUNDERSTORM WILL AFFECT DAVIE AND NORTHEASTERN IREDELL
COUNTIES THROUGH 315 PM EDT...

AT 219 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHWEST OF LONE HICKORY...OR 8 MILES
SOUTHWEST OF YADKINVILLE...MOVING SOUTHEAST AT 15 MPH.

THIS STORM WILL BE NEAR...
  HARMONY...
  FARMINGTON...
  MOCKSVILLE...

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 3580 8051 3601 8090 3606 8086 3606 8047
      3605 8045 3601 8041 3599 8041 3597 8039

07

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 1:02 PM EDTSpecial Weather StatementGSPCaldwell43 min
Aug 11, 1:46 PM EDTSpecial Weather StatementGSPCaldwell44 min
Aug 11, 1:49 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell, Catawba56 min
Aug 11, 2:11 PM EDTSpecial Weather StatementGSPAlexander49 min
Aug 11, 2:12 PM EDTSpecial Weather StatementGSPBurke48 min
Aug 11, 2:23 PM EDTSpecial Weather StatementGSPDavie52 min
Aug 11, 2:53 PM EDTSevere Thunderstorm WarningGSPCabarrus, Davie, Rowan52 min
Aug 11, 3:28 PM EDTSpecial Weather StatementGSPLincoln47 min
Aug 11, 3:34 PM EDTSpecial Weather StatementGSPRutherford41 min
Aug 11, 4:04 PM EDTSevere Thunderstorm WarningGSPCabarrus, Iredell, Lincoln, Mecklenburg56 min
Aug 11, 4:07 PM EDTSpecial Weather StatementGSPCleveland38 min
Aug 11, 4:31 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Mecklenburg59 min
Aug 11, 4:56 PM EDTSpecial Weather StatementGSPCabarrus49 min
Aug 11, 5:25 PM EDTSevere Thunderstorm WarningGSPGaston, Mecklenburg, Union65 min
Aug 11, 6:12 PM EDTSevere Thunderstorm WarningGSPUnion63 min
Aug 11, 7:56 PM EDTSpecial Weather StatementGSPAvery49 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2011Every 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.