Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 83, NWS Greenville-Spartanburg, SC

April 9, 2011Cleveland County, Gaston County, North Carolina; Cherokee County, York County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 9, 2011, 7:53 PM EDT for Cleveland County, Gaston County, North Carolina; Cherokee County, York County, South Carolina. It was in force for 67 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
Apr 9, 2011, 7:53 PM EDT (23:53 UTC)
Expired
Apr 9, 2011, 9:00 PM EDT
In force
67 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Cleveland County, NC, Gaston County, NC, Cherokee County, SC, York County, SC

The radar

The Greer radar (KGSP), 92 km from the middle of the area, began a volume at 23:56 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
Apr 9, 7:54 PM EDTHAIL 1.255 Sse Shelby, NC
Apr 9, 7:59 PM EDTTSTM WND DMG5 Sse Shelby, NCLARGE LIMBS DOWN AND VINYL SIDING BLOWN OFF A RESIDENCE
Apr 9, 8:14 PM EDTHAIL 1.75Clover, SC
Apr 9, 8:20 PM EDTHAIL 0.753 Se York, SCNEAR GORDON ROAD AND BILLY WILSON ROAD.
Apr 9, 8:20 PM EDTHAIL 1.75York, SC
Apr 9, 8:30 PM EDTHAIL 1.755 Nne Gaffney, SCNEAR THE INTERSECTION OF OLD MILL ROAD AND ROSS MILL ROAD.

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 8 storm reports to this severe thunderstorm warning; the first came 1 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 9, 2:44 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 9, 6:16 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.9 hours before the alert went out and 167 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 2011-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
704 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
256 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.

196 
WUUS52 KGSP 092353
SVRGSP
NCC045-071-SCC021-091-100100-
/O.NEW.KGSP.SV.W.0083.110409T2353Z-110410T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
753 PM EDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CLEVELAND COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  GASTON COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  EASTERN CHEROKEE COUNTY IN UPSTATE SOUTH CAROLINA...
  YORK COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 900 PM EDT

* AT 752 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 3 MILES SOUTHEAST OF PATTERSON SPRINGS...OR 7 MILES
  SOUTHEAST OF SHELBY...MOVING SOUTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GROVER AND BLACKSBURG...
  KINGS MOUNTAIN STATE PARK AND DALLAS...
  SMYRNA AND HICKORY GROVE...
  SHARON AND CLOVER...
  YORK AND BULLOCK CREEK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A HOUSE OR OTHER STURDY STRUCTURE IF A TORNADO IS SPOTTED.

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 3483 8089 3482 8146 3487 8149 3487 8153
      3512 8168 3542 8129 3542 8127 3532 8102
      3505 8108 3484 8087
TIME...MOT...LOC 2353Z 317DEG 46KT 3519 8147

$$

NED
5 follow-up statements
835 
WWUS52 KGSP 100016
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
816 PM EDT SAT APR 9 2011

SCC021-100027-
/O.CAN.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
CHEROKEE SC-
816 PM EDT SAT APR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHEROKEE COUNTY IS
CANCELLED...

LAT...LON 3483 8089 3483 8140 3504 8142 3505 8141
      3514 8140 3516 8137 3517 8144 3529 8145
      3526 8108 3506 8108 3484 8087
TIME...MOT...LOC 0017Z 304DEG 46KT 3500 8118

$$

NCC045-071-SCC091-100100-
/O.CON.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
CLEVELAND NC-GASTON NC-YORK SC-
816 PM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR YORK...SOUTHERN GASTON AND SOUTHEASTERN CLEVELAND COUNTIES...

AT 814 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR YORK...MOVING SOUTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MCCONNELLS...ROCK HILL AND CATAWBA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A HOUSE OR OTHER STURDY STRUCTURE IF A TORNADO IS SPOTTED.

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 3483 8089 3483 8140 3504 8142 3505 8141
      3514 8140 3516 8137 3517 8144 3529 8145
      3526 8108 3506 8108 3484 8087
TIME...MOT...LOC 0017Z 304DEG 46KT 3500 8118

$$

NED
251 
WWUS52 KGSP 100021
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
821 PM EDT SAT APR 9 2011

NCC045-071-100031-
/O.CAN.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
CLEVELAND NC-GASTON NC-
821 PM EDT SAT APR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN GASTON AND
SOUTHEASTERN CLEVELAND COUNTIES IS CANCELLED...

LAT...LON 3483 8089 3483 8140 3504 8142 3505 8141
      3514 8140 3517 8134 3516 8134 3517 8133
      3515 8109 3506 8108 3484 8087
TIME...MOT...LOC 0021Z 304DEG 46KT 3497 8113

$$

SCC091-100100-
/O.CON.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
YORK SC-
821 PM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR YORK COUNTY...

AT 819 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR YORK...MOVING SOUTHEAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCK
HILL AND CATAWBA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A HOUSE OR OTHER STURDY STRUCTURE IF A TORNADO IS SPOTTED.

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 3483 8089 3483 8140 3504 8142 3505 8141
      3514 8140 3517 8134 3516 8134 3517 8133
      3515 8109 3506 8108 3484 8087
TIME...MOT...LOC 0021Z 304DEG 46KT 3497 8113

$$

NED
960 
WWUS52 KGSP 100030
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
830 PM EDT SAT APR 9 2011

SCC091-100100-
/O.CON.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
YORK SC-
830 PM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR YORK COUNTY...

AT 828 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ROCK HILL...MOVING SOUTHEAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CATAWBA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A HOUSE OR OTHER STURDY STRUCTURE IF A TORNADO IS SPOTTED.

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 3483 8089 3484 8126 3505 8136 3513 8126
      3515 8109 3506 8108 3484 8087
TIME...MOT...LOC 0030Z 304DEG 46KT 3491 8101

$$

NED
196 
WWUS52 KGSP 100042
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
842 PM EDT SAT APR 9 2011

SCC091-100100-
/O.CON.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
YORK SC-
842 PM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR EASTERN YORK COUNTY...

AT 837 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR CATAWBA...OR NEAR ROCK HILL...MOVING SOUTHEAST AT 55 
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A HOUSE OR OTHER STURDY STRUCTURE IF A TORNADO IS SPOTTED.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS LIGHTNING
IS OCCURRING WITH THIS STORM. STAY INDOORS AWAY FROM WINDOWS. AVOID
USING APPLIANCES THAT REQUIRE AN ELECTRICAL CORD. UNPLUG EXPENSIVE
ELECTRONIC EQUIPMENT.

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 3483 8089 3484 8126 3499 8123 3508 8112
      3506 8108 3484 8087
TIME...MOT...LOC 0042Z 304DEG 46KT 3484 8092

$$

NED
596 
WWUS52 KGSP 100052
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
852 PM EDT SAT APR 9 2011

SCC091-100103-
/O.EXP.KGSP.SV.W.0083.000000T0000Z-110410T0100Z/
YORK SC-
852 PM EDT SAT APR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN YORK COUNTY WILL
EXPIRE AT 900 PM EDT...

LAT...LON 3483 8089 3484 8126 3499 8123 3508 8112
      3506 8108 3484 8087
TIME...MOT...LOC 0053Z 304DEG 46KT 3476 8078

$$

NED

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 Apr 9, 7:15 PM EDT, 38 minutes earlier.

Area forecast discussion, Apr 9, 7:15 PM EDT, 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
715 PM EDT SAT APR 9 2011

.SYNOPSIS...
STRONG UPPER RIDGING WILL BUILD ATOP THE REGION FOR SUNDAY BUT GIVE
WAY TO AN APPROACHING COLD FRONT MONDAY NIGHT. HIGH PRESSURE THEN
RETURNS FOR TUESDAY AND WEDNESDAY.

&&

.NEAR TERM /THROUGH SUNDAY/...
UPDATED PRODUCTS TO REFLECT LATEST TORNADO WATCH 115. MADE OTHER
ADJUSTMENTS TO POPS/WX/TEMP/DP/RH AND WINDS FOR HTIS UPDATE.

PREVIOUS DISCUSSION...WATER VAPOR IMAGERY SHOWS THE POTENT UPSTREAM
MCV OVER THE OH VALLEY...WITH A STRONG MCC AHEAD OF IT. STRONG TO
SEVERE CONVECTION IS DEVELOPING TO THE SOUTH OF THIS FEATURE IN THE
VERY UNSTABLE WARM SECTOR AIRMASS. LAPS CAPE VALUES ARE ALREADY
AROUND 3000 J/KG ACROSS MUCH OF THE AREA...AND ADDITIONAL DEWPOINT
RECOVERY IS LIKELY THROUGH LATE AFTERNOON IN THE SOUTHERLY FLOW.
FORCING IS BETTER NORTH THAN SOUTH THROUGH THE PM HOURS...BUT
HEALTHY SRN TIER POPS WILL BE NEEDED AS OUTFLOWS DEVELOP. THERE IS
CONSIDERABLE CIN TO BE OVERCOME IN THE SOUNDINGS ACROSS SRN
SECTIONS...BUT INSTABILITY WILL BE QUITE STRONG WHEN REALIZED.
FREEZING LEVELS AROUND 12 K FT...STEEP LAPSE RATES ALOFT...AND
IMPROVING SHEAR PROFILES WILL MAKE FOR A ROBUST SEVERE WEATHER
THREAT THROUGH THE EARLY EVENING HOURS. STORM CORES TO 22 OR 23 KFT
SHOULD BE SUFFICIENT FOR LARGE HAIL...AND VERY LARGE HAIL WILL BE
POSSIBLE ALONG WITH SIGNIFICANT WIND DAMAGE.

WARM ADVECTION WILL INCREASE ALONG THE 850 MB BAROCLINIC ZONE
THROUGH THE EVENING HOURS...WITH WARM ADVECTION THE STRONGEST IN THE
DEEPER MOISTURE ACROSS THE NE HALF. THE BEST LATE EVENING POPS WILL
BE FEATURED THERE AS THE MCV MOVES EAST OF THE AREA. PATCHY FOG IS
EXPECTED OVERNIGHT IN AREAS RECEIVING APPRECIABLE RAINFALL...AND MIN
TEMPS SHOULD BE ON THE MILD SIDE DESPITE THE SFC FRONT SAGGING BACK
TO THE SW.

UPPER LEVEL HEIGHTS WILL BUILD SHARPLY OVER THE AREA THE REST OF
TONIGHT THROUGH SUNDAY. 850 MB TEMPS WILL WARM ANOTHER COUPLE OF
DEGREES UNDER THE RIDGE TO PRODUCE A VERY WARM SUNDAY AFTERNOON. A
PLUME OF RICH THETA E AIR IS EXPECTED TO STRETCH ACROSS THE FORECAST
AREA SUN AFTN...BUT A TRIGGER FOR CONVECTION WILL BE HARD TO FIND.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
AT 215 PM SATURDAY...LARGER SCALE LIFT AHEAD OF DEVELOPING SOUTHERN
STREAM S/WV WILL OVERSPREAD THE CWFA LATE MONDAY INTO MONDAY NIGHT.
IT IS STILL LIKELY THAT A ROUND OF FRONTAL BAND PCPN WILL AFFECT THE
AREA DURING THIS PERIOD...HOWEVER...JUST LIKE WHAT WAS FCST
YESTERDAY...TSTM MAGNITUDE IS QUESTIONABLE...WITH THE 09 UTC SREF
PROBABILITIES OF CAPE VALUES OF AT LEAST 1000 J/KG STILL VERY LOW.

PRE-FRONTAL PRESSURE GRADIENT TIGHTENS ENUF TO DEVELOP BREEZY CONDS
MONDAY AFTERNOON...AND DESPITE ENCROACHING CLOUDS...ANOTHER WARM DAY
IS ON TAP. ENCROACHING DRY SLOT TUESDAY MORNING EXPECTED TO QUICKLY
DIMINISH PCPN CHANCES DESPITE AXIS OF MID-LVL WAVE NOT TRANSLATING
DOWNSTREAM OF THE CWFA UNTIL LATER IN THE DAY. WILL SHOOT FOR
INCREASING SUNSHINE WITH MAX TEMPS CLOSER TO CLIMO...ALBEIT NEAR
5 DEG F ABOVE NORMAL.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
AT 230 PM SATURDAY...IT LOOKS LIKE THERE IS ENUF AGREEMENT BETWEEN
THE 12 UTC OP GFS AND THE LATEST HPC EXTENDED PROGS IN DEPICTING
DEEP LAYERED RIDGING ATOP THE EASTERN CONUS FOR WEDNESDAY TO PROVIDE
DRY AND SEASONABLY MILD WX. THE ONSET OF INCREASINGLY MOIST GULF TAP
AHEAD OF ENCROACHING PLAINS SYSTEM IS SLATED FOR THURSDAY...BUT
WOULD EXPECT ANOTHER ESSENTIALLY DRY AND SEASONABLY MILD DAY.

IT REMAINS TO BE SEEN HOW QUICKLY AND TO WHAT DEGREE AFOREMENTIONED
SYSTEM GETS WRAPPED UP AS IT HEADS TOWARD THE GREAT LAKES BY THE END
OF THE PERIOD. THE ATTENDANT MODERATELY FORCED COLD FRONT WILL
STEADILY ENCROACH AS WELL AND IT/S PROBABLE THAT THE MILD AND
MOISTENING AIRMASS WILL PROVIDE FUEL FOR DAILY TSTM CHANCES IN THE
WARM SECTOR.

&&

.AVIATION /23Z SATURDAY THROUGH THURSDAY/...
AT KCLT AND ELSEWHERE...CONVECTION CONTINUES TO BE MAIN CONCERN THIS
EVE WITH DAMAGING WINDS AND LARGE HAIL PSBL. COOLER...MORE STABLE
AIR WILL BEGIN TO PUSH IN FROM THE NE AS WEAK SFC BOUNDARY DIPS BACK
TO THE SW...WITH ASSOCIATED MVFR/IFR CIGS KHKY AND KCLT AND NE WINDS.
WINDS WILL BE S-SW ELSEWHERE. CONVECTION SHOULD BEGIN TO WEAKEN BY
LATE EVE. LOW CLOUDS WILL SCATTER OUT UNDER THE BUILDING RIDGE
SUNDAY WITH VFR ACROSS CWA BY AFTN.

OUTLOOK....EXPECT SCT SHWRS/TSTMS WITH A COLD FRONT MONDAY. DRIER
HIGH PRES IS EXPECTED TUE AND WED.

&&

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

&&

SYNOPSIS...CSH
NEAR TERM...HG/RB
SHORT TERM...CSH
LONG TERM...CSH
AVIATION...RB
Hazardous weather outlook, Apr 9, 6:37 PM EDT, 1 hour 16 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
637 PM EDT SAT APR 9 2011

GAZ010-017-018-026-028-029-NCZ035>037-056-057-069-072-SCZ001-004-
102245-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-CATAWBA-ROWAN-LINCOLN-CABARRUS-OCONEE MOUNTAINS-GREATER OCONEE-
637 PM EDT SAT APR 9 2011

...SEVERE THUNDERSTORM WATCH 114 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

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

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ048-049-051>053-059-063>065-068-070-071-082-503>510-SCZ002-003-
005>014-019-102245-
MADISON-YANCEY-SWAIN-HAYWOOD-BUNCOMBE-NORTHERN JACKSON-
SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-CLEVELAND-GASTON-MECKLENBURG-
UNION NC-BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS-
EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-GREATER RUTHERFORD-
POLK MOUNTAINS-EASTERN POLK-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
637 PM EDT SAT APR 9 2011

...TORNADO WATCH 115 IN EFFECT UNTIL 2 AM EDT SUNDAY...

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

   TORNADO WATCH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ033-050-058-062-501-502-102245-
AVERY-MITCHELL-GRAHAM-MACON-CALDWELL MOUNTAINS-GREATER CALDWELL-
637 PM EDT SAT APR 9 2011

...TORNADO WATCH 113 IN EFFECT UNTIL 9 PM EDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR 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.

   TORNADO WATCH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Local storm report, Apr 9, 7:31 PM EDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
731 PM EDT SAT APR 09 2011

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

0710 PM     HAIL             MARION                  35.68N 82.01W
04/09/2011  E2.00 INCH       MCDOWELL           NC   TRAINED SPOTTER

&&

HG
Local storm report, Apr 9, 7:35 PM EDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
735 PM EDT SAT APR 09 2011

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

0610 PM     HAIL             1 SE MORGANTON          35.73N 81.69W
04/09/2011  E1.00 INCH       BURKE              NC   TRAINED SPOTTER

            ON OLD SHELBY ROAD.

0733 PM     HAIL             OLD FORT                35.63N 82.18W
04/09/2011  E1.00 INCH       MCDOWELL           NC   TRAINED SPOTTER

&&

BSH
Local storm report, Apr 9, 7:39 PM EDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
739 PM EDT SAT APR 09 2011

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

0730 PM     HAIL             3 SW CASAR              35.48N 81.66W
04/09/2011  E1.00 INCH       CLEVELAND          NC   TRAINED SPOTTER

&&
Local storm report, Apr 9, 7:41 PM EDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
741 PM EDT SAT APR 09 2011

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

0715 PM     HAIL             BARNARDSVILLE           35.78N 82.45W
04/09/2011  E0.88 INCH       BUNCOMBE           NC   TRAINED SPOTTER

&&
Local storm report, Apr 9, 7:46 PM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
746 PM EDT SAT APR 09 2011

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

0742 PM     HAIL             8 N SHELBY              35.40N 81.54W
04/09/2011  E1.00 INCH       CLEVELAND          NC   AMATEUR RADIO

            HW-226 FERNDALE

&&
Local storm report, Apr 9, 7:52 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
752 PM EDT SAT APR 09 2011

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

0747 PM     HAIL             CONCORD                 35.41N 80.59W
04/09/2011  E1.00 INCH       CABARRUS           NC   TRAINED SPOTTER

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 2:22 AM EDTSevere Thunderstorm WarningGSPAvery, Mitchell, Yancey53 min
Apr 9, 3:12 AM EDTSevere Thunderstorm WarningGSPAvery, Burke, Caldwell, McDowell, Mitchell, Yancey63 min
Apr 9, 1:02 PM EDTSpecial Weather StatementGSPBuncombe43 min
Apr 9, 1:09 PM EDTSevere Thunderstorm WarningGSPBuncombe, McDowell, Yancey42 min
Apr 9, 1:38 PM EDTSevere Thunderstorm WarningGSPMcDowell, Mitchell, Yancey52 min
Apr 9, 1:46 PM EDTSpecial Weather StatementGSPBuncombe29 min
Apr 9, 2:10 PM EDTSevere Thunderstorm WarningGSPBuncombe, Madison, Yancey24 min
Apr 9, 2:21 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, Caldwell, Mitchell42 min
Apr 9, 2:33 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, McDowell, Mitchell, Yancey57 min
Apr 9, 2:40 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell28 min
Apr 9, 3:12 PM EDTSevere Thunderstorm WarningGSPBuncombe, McDowell, Yancey48 min
Apr 9, 3:38 PM EDTSpecial Weather StatementGSPIredell37 min
Apr 9, 3:43 PM EDTSevere Thunderstorm WarningGSPJackson, Macon62 min
Apr 9, 3:58 PM EDTTornado WarningGSPBurke, Cleveland, McDowell, Rutherford47 min
Apr 9, 3:59 PM EDTSpecial Weather StatementGSPTransylvania46 min
Apr 9, 4:19 PM EDTTornado WarningGSPCleveland, Gaston, Lincoln, Rutherford41 min
Apr 9, 4:57 PM EDTTornado WarningGSPCleveland, Gaston, Lincoln48 min
Apr 9, 5:07 PM EDTSevere Thunderstorm WarningGSPAvery, Madison, Mitchell, Yancey53 min
Apr 9, 5:09 PM EDTSpecial Weather StatementGSPRutherford36 min
Apr 9, 5:15 PM EDTSevere Thunderstorm WarningGSPMcDowell, Rutherford36 min
Apr 9, 5:19 PM EDTSevere Thunderstorm WarningGSPCleveland, Lincoln, Rutherford56 min
Apr 9, 5:24 PM EDTTornado WarningGSPGaston36 min
Apr 9, 5:26 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg, Union64 min
Apr 9, 5:40 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, Caldwell, McDowell, Mitchell42 min
Apr 9, 5:43 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston62 min
Apr 9, 5:53 PM EDTSevere Thunderstorm WarningGSPUnion52 min
Apr 9, 6:05 PM EDTTornado WarningGSPMitchell, Yancey40 min
Apr 9, 6:17 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell, Catawba, Cleveland, Lincoln28 min
Apr 9, 6:25 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union65 min
Apr 9, 6:37 PM EDTTornado WarningGSPBurke, McDowell, Mitchell, Yancey28 min
Apr 9, 6:40 PM EDTSevere Thunderstorm WarningGSPBuncombe, Haywood, Madison, Swain, Yancey65 min
Apr 9, 6:42 PM EDTSevere Thunderstorm WarningGSPUnion48 min
Apr 9, 6:47 PM EDTSevere Thunderstorm WarningGSPCatawba, Cleveland, Gaston, Lincoln31 min
Apr 9, 7:03 PM EDTSevere Thunderstorm WarningGSPCabarrus, Iredell, Mecklenburg, Rowan40 min
Apr 9, 7:04 PM EDTSevere Thunderstorm WarningGSPBurke, Cleveland, McDowell, Rutherford56 min
Apr 9, 7:09 PM EDTSevere Thunderstorm WarningGSPBuncombe, McDowell, Yancey45 min
Apr 9, 7:25 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union38 min
Apr 9, 7:26 PM EDTSevere Thunderstorm WarningGSPBurke, Catawba, Cleveland, Gaston, Lincoln, Rutherford41 min
Apr 9, 7:45 PM EDTSevere Thunderstorm WarningGSPBuncombe, McDowell, Madison, Mitchell, Yancey60 min
Apr 9, 7:47 PM EDTSevere Thunderstorm WarningGSPBuncombe, Haywood, Henderson, Transylvania36 min
Apr 9, 7:49 PM EDTSevere Thunderstorm WarningGSPMcDowell, Polk, Rutherford26 min
Apr 9, 4:29 PM EDTSevere Thunderstorm WarningGSPOconee, Pickens46 min
Apr 9, 4:52 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Pickens53 min
Apr 9, 5:40 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Laurens48 min
Apr 9, 5:56 PM EDTSevere Thunderstorm WarningGSPYork34 min
Apr 9, 6:06 PM EDTTornado WarningGSPYork12 min
Apr 9, 6:17 PM EDTSevere Thunderstorm WarningGSPYork58 min
Apr 9, 7:00 PM EDTSevere Thunderstorm WarningGSPChester, York12 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2011Severe Thunderstorm Warnings in South 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.