Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 146, NWS Greenville-Spartanburg, SC

April 30, 2012Greenville County, Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 30, 2012, 10:31 PM EDT for Greenville County, Spartanburg County, South Carolina. It was in force for 44 min. 2 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 30, 2012, 10:31 PM EDT (02:31 UTC)
Expired
Apr 30, 2012, 11:15 PM EDT
In force
44 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Greenville County, SC, Spartanburg County, SC

The radar

The Greer radar (KGSP), 27 km from the middle of the area, began a volume at 02:32 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 30, 10:39 PM EDTHAIL 13 Ssw Gowensville, SC
Apr 30, 11:00 PM EDTHAIL 0.75Inman, SCPUBLIC REPORT RELAYED BY WSPA-TV

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 8 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 00:00Z, 2.5 hours before the alert went out and 227 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 00:00Z on 2012-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1300 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 00:00Z on 2012-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.193958Sfc1 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
1300 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

058 
WUUS52 KGSP 010231
SVRGSP
SCC045-083-010330-
/O.NEW.KGSP.SV.W.0146.120501T0231Z-120501T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1031 PM EDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA...        
  NORTHWESTERN SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 1130 PM EDT

* AT 1028 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
  LAKE ROBINSON...OR 15 MILES NORTHEAST OF DOWNTOWN GREENVILLE...AND
  MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  INMAN.
  LAKE BOWEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL CAN CAUSE MAJOR PROPERTY DAMAGE...ESPECIALLY TO VEHICLES.
DAMAGING WINDS MAY BLOW DOWN SCATTERED TREES AND POWER LINES. SEEK
SHELTER INSIDE AN INTERIOR ROOM.

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3507 8238 3519 8213 3518 8187 3515 8186
      3512 8185 3497 8230
TIME...MOT...LOC 0230Z 239DEG 18KT 3505 8228

$$
LANE
2 follow-up statements
123 
WWUS52 KGSP 010248
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1048 PM EDT MON APR 30 2012

SCC045-010257-
/O.CAN.KGSP.SV.W.0146.000000T0000Z-120501T0330Z/
GREENVILLE SC-
1048 PM EDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GREENVILLE COUNTY
IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS AREA.

LAT...LON 3515 8222 3519 8213 3518 8187 3512 8185
      3500 8222 3501 8222
TIME...MOT...LOC 0247Z 242DEG 22KT 3509 8216

$$

SCC083-010330-
/O.CON.KGSP.SV.W.0146.000000T0000Z-120501T0330Z/
SPARTANBURG SC-
1048 PM EDT MON APR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
SPARTANBURG COUNTY UNTIL 1130 PM EDT...

AT 1044 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS 
STORM WAS LOCATED 5 MILES WEST OF INMAN...OR 12 MILES SOUTH OF 
COLUMBUS...MOVING NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  LAKE BOWEN.
  CHESNEE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HAIL THE SIZE OF QUARTERS WAS REPORTED WITH THIS STORM NEAR 
GOWENSVILLE. SEEK SHELTER INSIDE AN INTERIOR ROOM.

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3515 8222 3519 8213 3518 8187 3512 8185
      3500 8222 3501 8222
TIME...MOT...LOC 0247Z 242DEG 22KT 3509 8216

$$
LANE
186 
WWUS52 KGSP 010315
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1115 PM EDT MON APR 30 2012

SCC083-010326-
/O.CAN.KGSP.SV.W.0146.000000T0000Z-120501T0330Z/
SPARTANBURG SC-
1115 PM EDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SPARTANBURG
COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LEVELS.

LAT...LON 3515 8222 3519 8213 3518 8187 3512 8185
      3500 8222 3501 8222
TIME...MOT...LOC 0316Z 242DEG 22KT 3517 8197

$$

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 30, 10:31 PM EDT, 0 minutes earlier.

Area forecast discussion, Apr 30, 10:31 PM EDT, 0 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1031 PM EDT MON APR 30 2012

.SYNOPSIS...
ATLANTIC HIGH PRESSURE WILL STRENGTHEN AND CONTROL THE WEATHER
THROUGH THE WEEK. SMALL AREAS OF UPPER LEVEL ENERGY WILL PROVIDE
SOME SHOWERS AND STORMS OVER THE MOUNTAINS AND MORE ISOLATED
ACTIVITY IN THE FOOTHILLS AND PIEDMONT LATE IN THE DAY.  A COLD
FRONT IS EXPECTED TO MOVE FROM NORTH TO SOUTH INTO THE AREA NEXT
WEEKEND.

&&

.NEAR TERM /THROUGH TUESDAY/...
AS OF 1030 PM EDT...THE SPC MESOANALYSIS PAGE IS STILL SHOWING
MUCAPES OF 2000-3000 J/KG OVER A GOOD BIT OF THE FA. SURFACE BASED
PARCELS WILL HAVE TROUBLE LIFTING AS THE CIN IS INCREASING.
HOWEVER...AN INCREASING LLVL JET AND A VERY MOIST AIRMASS IS
RESULTING IN ELEVATED CONVECTION NOW STARTING TO DEVELOP OVER THE
UPSTATE AND NE GA. WITH STEEP LAPSE RATES FROM H7-H5...THESE
ELEVATED UPDRAFTS ARE QUITE VIGOROUS AND WILL LIKELY CONTINUE TO
PRODUCE HAIL. THE SAME PROCESS...ALBEIT WITH THE FORCING COMING FROM
OROGRAPHIC LIFT...HAS TRIGGERED STRONG TO SEVERE STORMS MUCH OF THE
EVENING OVER THE CENTRAL AND NRN MTNS AND WESTERN FOOTHILLS. IT
APPEARS THAT THE LLVL JET WILL TAKE OVER AS THE PRIMARY FORCING
MECHANISM...AND CONVECTIVE CONVERGE SHOULD CONTINUE TO DECREASE
ACROSS THE MTNS. BUT...OUT ACROSS THE FOOTHILLS AND PIEDMONT OF
CAROLINAS AND NE GA THIS PROCESS IS LIKELY TO RESULT IN AN INCREASE
IN COVERAGE OVER THE NEXT COUPLE HOURS. A WEAK H5 SHORT WAVE
ANALYZED BY THE RUC OVER THE SRN APPALACHIANS WILL ALSO HELP THIS
PROCESS ALONG. THIS ISN/T THE PLAINS...AND THE LLVL JET ISN/T THAT
STRONG...SO I THINK BY 0500 UTC MOST OF THE CONVECTION SHOULD START
TO WIND DOWN. STILL...POPS HAVE BEEN RAISED TO LOW END LIKELY ALONG
THE I-85 CORRIDOR OF THE UPSTATE AND EXTREME SRN NC FOR THE NEXT
COUPLE HOURS.

AS OF 805 PM EDT...GRIDS ARE IN GOOD SHAPE. STRONG TO SEVERE STORMS
HAVE REMAINED CONFINED TO THE CENTRAL AND NRN NC MTNS AND THE NW
FOOTHILLS...EXACTLY AS WAS IN THE FORECAST.

PREVIOUS DISCUSSION...
AS OF 200 PM... 12Z NAM...LOCAL WRF AND THE 12Z GFS INDICATE THAT
CONVECTIVE INITIATION WILL OCCUR OVER THE NORTHERN MOUNTAINS IN THE
19Z-21Z TIMEFRAME...WITH CONVECTION THEN MOVING EAST THROUGH THE NC
FOOTHILLS INTO THE NORTHERN PIEDMONT. ADDITIONAL DEVELOPMENT THEN IS
FORECAST ESSENTIALLY THROUGH THE LEE TROUGH AROUND 00Z WITH STORMS
ACROSS THE NORTHERN UPSTATE INTO NE GA. CONVECTIVE ACTIVITY SHOULD
THEN WANE BY 06Z OR SO. CURRENT POP FIELD LOOKS GOOD IN REGARD TO
THIS SCENARIO.

SBCAPES ALREADY HAVE INCREASED INTO THE 1500-2000J/KG RANGE.
HOWEVER...IT LOOKS LIKE THERE IS SUFFICIENT CIN TO CAP CONVECTIVE
INITIATION UNTIL ABOUT 20Z IN THE NORTHERN MOUNTAINS. WITH BULK
SHEAR AROUND 30KT...THIS MY BE ENOUGH TO SUSTAIN UPDRAFTS AND ALLOW
CONVECTION TO SPREAD OUT OVER THE FOOTHILLS. ALSO...DCAPE OVER THE
MOUNTAINS IS AROUND 1000J...SO A FEW SEVERE STORMS ARE POSSIBLE WITH
LARGE HAIL AND DAMAGING WINDS.

ALL INDICATIONS ARE THAT THE STORMS WILL DISSIPATE BY 06Z...SO
IT SHOULD BE QUIET LATE TONIGHT WITH JUST DOME DEBRIS CLOUDINESS AND
PATCHY FOG. SOME STRATUS MAY MAKE A RUN AT THE EASTERN AND SOUTHERN
PERIPHERY OF THE CWA AROUND SUNRISE.

ON TUE...EXPECT A FEW SHOWERS TO BEGIN CROPPING UP IN THE MOUNTAINS
TUE MORNING WITH UPSLOPE FLOW AND AN APPROACHING VORT. SCATTERED
SHOWERS AND STORMS ARE THEN EXPECTED TO DEVELOP ACROSS THE NC
FOOTHILLS/PIEDMONT AS A WEAK FRONTAL BOUNDARY DROPS INTO THE AREA
DURING THE AFTERNOON. A FEW STORMS COULD MOVE OUT INTO NE GA AND THE
SC FOOTHILLS/PIEDMONT LATE IN THE DAY. CONDITIONAL INSTABILITY WILL
ONCE AGAIN BE ON THE ORDER OF 1500J/KG SO CAN'T RULE OUT A FEW
SEVERE STORMS OVER WESTERN NC WHERE WIND SHEAR IS THE GREATEST.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
AS OF 140 PM MONDAY...SHORT RANGE MODELS INDICATE THAT THE CENTER OF
H5 RIDGE WILL BUILD OVER THE SAVANNAH RIVER BASIN WEDNESDAY AND
THURSDAY. SKY COVER WILL REMAIN LIMITED TO PARTLY CLOUDY CONDITIONS
THROUGH THE PERIOD...ESPECIALLY OVER THE MTNS AND ADJACENT
FOOTHILLS. THE RIDGE WILL SUPPLY THE REGION WITH VERY WARM LLVL
THICKNESSES AND H85 TEMPS BETWEEN 16C TO 18C. USING A BLEND OF MOS
GUIDANCE...FORECAST LOW TEMPS ARE FORECAST TO RANGE FROM THE L50S
ACROSS THE MTN VALLEYS TO L60S EAST...OR AROUND 10 DEGREES ABOVE
NORMAL. THIS WILL SET THE STAGE FOR RECORD TO NEAR RECORD HIGH
TEMPERATURES EACH DAY. HERE ARE THE RECORDS FOR WEDNESDAY AND
THURSDAY FOR KGSP...KCLT...AND KAVL:

KGSP

MAY 2ND  90F IN 1959 FORECAST 90F
MAY 3RD  91F IN 1959 FORECAST 90F

KCLT

MAY 2ND  91F IN 1959 FORECAST 88F
MAY 3RD  94F IN 1902 FORECAST 91F

KAVL

MAY 2ND  88F IN 1935 FORECAST 85F
MAY 3RD  85F IN 1965 FORECAST 86F

WEDNESDAY AND THURSDAY...THE ENVIRONMENT WILL CHANGE LITTLE FROM DAY
TO DAY. FORECAST SOUNDINGS FEATURE A WEAK INVERSION AROUND H8 WITH
CIN VALUES RANGING BETWEEN 30 TO 60 J/KG. WIND FIELDS SHOULD RESULT
IN ONLY WEAK SHEAR...ESPECIALLY ON THURSDAY. THE STORM MODE SHOULD
REMAIN AS PULSE STORMS. GIVEN THE LINGERING INVERSION...LACK OF A
TRIGGER...AND SLOW STORM MOTIONS WILL FAVOR SCHC POPS EAST OF THE
MTNS...WITH CHC POPS ACROSS THE RIDGES.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
AS OF 145 PM MONDAY...THE MEDIUM RANGE MODELS HAVE BEEN RATHER
CHANGEABLE.  MOST RECENT HPC WORD SAYS BLENDING ECMWF AND GEFS
ENSEMBLES ARE THE BEST WAY TO GO.  WHEN COMPARING THE OPERATIONAL
GFS AND ECMWF START THE MEDIUM RANGE IN A MODERATE 500MB RIDGE
THURSDAY NIGHT. BOTH SHOW THURSDAY EVENING CONVECTION FROM THE
VIRGINIAS TO EASTERN NC. THIS TREND DIMINISHES FOR LATE FRIDAY AS
THE RIDGE FLATTENS.  GOING INTO THE WEEKEND...THESE TWO MODELS
DIVERGE IN SOLUTIONS.  THE RIDGE REBUILDS OVER THE SE ON THE ECMWF
FOR SATURDAY WHILE RIDGE RETROGRADES TO TEXAS ON THE GFS WITH TROF
FORMING OVER EAST. THE LATEST 12Z GFS BRINGS THE COLD FRONT ACROSS
OUR AREA EARLY SUNDAY WHILE THE PREVIOUS RUN WAITED UNTIL LATE
MONDAY.  THE MOST RECENT ECMWF HAD A WEAK FRONT CROSSING OUR REGION
MONDAY NIGHT. OF COURSE...WITH THIS BEING A WEEK AWAY WE WILL HAVE
SLIGHT POPS IN FORECAST THROUGH THE GENERAL TIME UNTIL WE CAN NAIL
DOWN A MORE DEFINITE TIME FOR FRONTAL PASSAGE.

&&

.AVIATION /03Z TUESDAY THROUGH SATURDAY/...
AT KCLT...INTENSE TSTMS SHOULD REMAIN CONFINED TO THE NC MTNS AND
WRN FOOTHILLS THIS EVENING. WINDS WILL GENERALLY BE OUT OF THE
SOUTH. STRATUS IS EXPECTED TO DEVELOP OVER THE MIDLANDS AND INTO
CENTRAL NC LATE TONIGHT. THE BACK EDGE OF THE LOW CLOUDS WILL BE
QUITE CLOSE TO THE AIRFIELD. I/VE PUT FEW006 IN THE TAF FOR A FEW
HOURS AROUND SUNRISE. THE RUC BUFKIT REALLY IMPLIES THE LOW CIGS
WILL MAKE IT...BUT THE NAM IS MORE IFFY. TMRW AFTN A FEW TSTMS MAY
APPROACH THE AIRFIELD FROM THE NW LATE IN THE DAY.

ELSEWHERE...STRATUS IS EXPECTED TO DEVELOP EAST OF THE REGION
OVERNIGHT...BUT SHOULD STAY SEVERAL MILES EAST OF ALL THE UPSTATE
TAF SITES. MID LEVEL CLOUDS SHOULD KEEP SKIES CLOUDY ENOUGH TO
PREVENT WIDESPREAD VALLEY FOG IN THE NC MTNS. A STRENGTHENING LLVL
JET SHOULD KEEP THE WINDS UP ENUF IN THE FOOTHILLS AND PIEDMONT TO
PREVENT ANYTHING BUT PATCHY MVFR FOG AS WELL. WINDS WILL GENERALLY
BE OUT OF SOUTH TONIGHT...VEERING TO SW ON TUESDAY. SCT TSTMS WILL
DEVELOP OVER THE MTNS TUE...BUT COVERAGE IS NOT GREAT ENUF TO
INCLUDE IN THE TAF.

OUTLOOK...SCT TSTMS WILL DEVELOP OVER THE MTNS WED-FRI. A MOST
AIRMASS WILL ALLOW AREAS OF FOG AND STRATUS TO FORM IN SPOTS THROUGH
THE END OF THE WEEK AS WELL.

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...DEO
NEAR TERM...MCAVOY
SHORT TERM...NED
LONG TERM...DEO
AVIATION...MCAVOY
Hazardous weather outlook, Apr 30, 5:53 AM EDT, 16 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
553 AM EDT MON APR 30 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-011000-
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-
553 AM EDT MON APR 30 2012

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE MOUNTAINS
LATE THIS AFTERNOON. SOME OF THE STORMS MAY ORGANIZE AND MOVE EAST
OFF THE BLUE RIDGE IN THE EARLY EVENING. THE BEST CHANCE FOR
THUNDERSTORMS WILL BE ACROSS THE NORTH CAROLINA FOOTHILLS AND
NORTHWEST PIEDMONT DURING THE EVENING HOURS. A FEW OF THE STORMS
MAY GROW LARGE ENOUGH TO PRODUCE LARGE HAIL AND DAMAGING WIND
GUSTS. THE ACTIVITY IS EXPECTED TO WEAKEN AND DISSIPATE BY
MIDNIGHT.

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

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.

MOORE

In the hours before

Special weather statement, Apr 30, 9:02 PM EDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
902 PM EDT MON APR 30 2012

NCZ049-050-010130-
MITCHELL-YANCEY-
902 PM EDT MON APR 30 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MITCHELL AND NORTHERN
YANCEY COUNTIES THROUGH 930 PM EDT...

AT 858 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR RAMSEYTOWN...OR 5 MILES NORTH OF
BURNSVILLE...MOVING NORTHEAST AT 20 MPH.

THIS STORM WILL BE NEAR...
  BULADEAN...

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

LAT...LON 3613 8213 3611 8212 3611 8209 3610 8207
      3606 8206 3593 8233 3601 8240 3617 8221

LANE
Special weather statement, Apr 30, 9:18 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
918 PM EDT MON APR 30 2012

NCZ050-010145-
MITCHELL-
918 PM EDT MON APR 30 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MITCHELL COUNTY THROUGH
945 PM EDT...

AT 914 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR BAKERSVILLE...OR 8 MILES NORTHEAST OF
BURNSVILLE...MOVING EAST AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BAKERSVILLE...

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

LAT...LON 3608 8208 3602 8204 3598 8206 3595 8204
      3597 8219 3600 8220 3601 8219 3602 8224
      3606 8226 3611 8208

LANE
Special weather statement, Apr 30, 9:24 PM EDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
924 PM EDT MON APR 30 2012

NCZ053-010200-
BUNCOMBE-
924 PM EDT MON APR 30 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN BUNCOMBE COUNTY THROUGH
1000 PM EDT...

AT 920 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WEAVERVILLE...OR 8 MILES SOUTHEAST OF
MARSHALL...MOVING EAST AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BARNARDSVILLE...

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

LAT...LON 3565 8236 3568 8261 3575 8264 3582 8242
      3582 8238

LANE
Local storm report, Apr 30, 9:44 PM EDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
944 PM EDT MON APR 30 2012

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

0930 PM     HAIL             3 NE WEAVERVILLE        35.72N 82.52W
04/30/2012  E1.00 INCH       BUNCOMBE           NC   PUBLIC

&&

CSH
Special weather statement, Apr 30, 9:48 PM EDT, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
948 PM EDT MON APR 30 2012

NCZ033-501-010215-
AVERY-CALDWELL MOUNTAINS-
948 PM EDT MON APR 30 2012

...ANOTHER STRONG THUNDERSTORM WILL AFFECT EASTERN AVERY AND
NORTHWESTERN CALDWELL COUNTIES THROUGH 1015 PM EDT...

AT 944 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHEAST OF LINVILLE...OR 6 MILES
SOUTHEAST OF NEWLAND...MOVING EAST AT 25 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  GLOBE...

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

LAT...LON 3602 8158 3600 8189 3607 8191 3612 8181
      3613 8162

LANE
Special weather statement, Apr 30, 10:01 PM EDT, 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1001 PM EDT MON APR 30 2012

SCZ003-006-010230-
GREATER GREENVILLE-GREENVILLE MOUNTAINS-
1001 PM EDT MON APR 30 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN GREENVILLE COUNTY
THROUGH 1030 PM EDT...

AT 956 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MARIETTA...OR 11 MILES NORTHWEST OF DOWNTOWN
GREENVILLE...MOVING NORTHEAST AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  MARIETTA...
  TIGERVILLE...

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

LAT...LON 3496 8254 3497 8253 3498 8254 3501 8254
      3502 8256 3519 8234 3519 8232 3520 8230
      3510 8222 3505 8222 3492 8250

LANE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 10:01 PM EDTSpecial Weather StatementGSPGreenville29 min
May 1, 2:47 PM EDTSevere Thunderstorm WarningGSPGreenville, Pickens44 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2012Every severe thunderstorm warning in 2012

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.