Alert archive / South Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 22, NWS Greenville-Spartanburg, SC

May 10, 2014Cherokee County, Spartanburg County, South Carolina; Cleveland County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 10, 2014, 1:28 PM EDT for Cherokee County, Spartanburg County, South Carolina; Cleveland County, Rutherford County, North Carolina. It was in force for 62 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
May 10, 2014, 1:28 PM EDT (17:28 UTC)
Expired
May 10, 2014, 2:30 PM EDT
In force
62 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Cleveland County, NC, Rutherford County, NC, Cherokee County, SC, Spartanburg County, SC

The radar

The Greer radar (KGSP), 44 km from the middle of the area, began a volume at 17:32 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
May 10, 1:50 PM EDTHAIL 0.88Nnw Mayo, SC
May 10, 1:58 PM EDTHAIL 1Chesnee, SCHAIL FELL FOR 8-10 MINUTES...MOST HAIL WAS THE SIZE OF PEAS AND MARBLES. THE LARGEST STONES WAS QUARTER SIZED. REPORTED VIA SOCIAL MEDIA.

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 30 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, 5.5 hours before the alert went out and 206 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 2014-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 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 2014-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 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
133 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
-54 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.

321 
WUUS52 KGSP 101728
SVRGSP
NCC045-161-SCC021-083-101830-
/O.NEW.KGSP.SV.W.0022.140510T1728Z-140510T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
128 PM EDT SAT MAY 10 2014

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CLEVELAND COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  SOUTHERN RUTHERFORD COUNTY IN WESTERN NORTH CAROLINA...
  NORTHWESTERN CHEROKEE COUNTY IN UPSTATE SOUTH CAROLINA...
  NORTHERN SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 230 PM EDT

* AT 125 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
  INMAN...OR 10 MILES NORTHWEST OF SPARTANBURG...AND MOVING NORTHEAST
  AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  MAYO.
  CHESNEE AND COWPENS NATIONAL BATTLEFIELD.
  CLIFFSIDE.
  BOILING SPRINGS NC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

&&

LAT...LON 3511 8155 3495 8206 3509 8216 3519 8203
      3519 8198 3524 8196 3540 8176
TIME...MOT...LOC 1729Z 237DEG 22KT 3506 8201

$$
JOH
1 follow-up statement
334 
WWUS52 KGSP 101752
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
152 PM EDT SAT MAY 10 2014

NCC045-161-SCC021-083-101830-
/O.CON.KGSP.SV.W.0022.000000T0000Z-140510T1830Z/
CLEVELAND NC-CHEROKEE SC-SPARTANBURG SC-RUTHERFORD NC-
152 PM EDT SAT MAY 10 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
RUTHERFORD...NORTHERN SPARTANBURG...NORTHWESTERN CHEROKEE AND
SOUTHWESTERN CLEVELAND COUNTIES UNTIL 230 PM EDT...

AT 147 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
MAYO...OR 11 MILES NORTH OF SPARTANBURG...MOVING NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  PRIME OUTLET MALL.
  CLIFFSIDE.
  BOILING SPRINGS NC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

THIS SEVERE THUNDERSTORM IS ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.

&&

LAT...LON 3511 8155 3495 8206 3509 8216 3519 8203
      3519 8198 3524 8196 3540 8176
TIME...MOT...LOC 1753Z 237DEG 22KT 3513 8184

$$
JOH

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 May 10, 10:39 AM EDT, 2 hours 49 minutes earlier.

Area forecast discussion, May 10, 10:39 AM EDT, 2 hours 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1039 AM EDT SAT MAY 10 2014

.SYNOPSIS...
A WEAK SURFACE BOUNDARY WILL APPROACH THE CAROLINAS FROM THE WEST
TODAY BUT MAY WASH OUT BEFORE IT REACHES THE MOUNTAINS. A BERMUDA
HIGH WILL STRENGTHEN AGAIN OVER THE SOUTHEAST ON SUNDAY AND THEN
WILL REMAIN IN CONTROL OF OUR WEATHER THROUGH THE MIDDLE OF NEXT
WEEK. ANOTHER FRONT WILL MOVE ACROSS THE REGION ON THURSDAY.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 1015 AM...POPS WERE ADJUSTED AGAIN TO MATCH UP WITH THE LATEST
RADAR IMAGERY. SCATTERED TO NUMEROUS SHOWERS HAVE POPPED UP ALONG
THE SC AND NC FOOTHILLS...WHILE AN AREA OF LIGHT RAIN HAS MOVED INTO
THE SW NC MTNS.

THE VIS SAT IMAGERY SHOWS EXTENSIVE CLOUDINESS ACRS ABOUT 2/3RD OF
THE CWFA...WITH JUST THE LOWER PIEDMONT FROM ELBERT COUNTY GA TO
UNION COUNTY NC SHOWING SIGNIFICANT BREAKS. THIS LOOKS LIKE A
SIMILAR SETUP TO YESTERDAY...WITH MORE INSTBY AND DCAPE ALONG AND
SOUTHEAST OF I-85 FROM MIDDAY THRU THE AFTN. THERE WILL ACTUALLY BE
A LITTLE BETTER UPPER FORCING...AS A MORE SIGNIFICANT VORT WAS
ANALYZED CROSSING NRN GA (AND IS PROBABLY RESPONSIBLE FOR THE EARLY
CONVECTIVE INITIATION THIS MORNING). THERE IS ALSO A LITTLE BETTER
SHEAR (THO STILL MARGINAL AND MORE UNIDIRECTIONAL THAN
YESTERDAY)...0-3 KM BULK SHEAR OF 35-40 KTS PER THE NAM. THE 12Z
RAOBS FROM FFC/GSO/OHX ALL SHOW AN ELEVATED MIXED LAYER FROM ABOUT
900-750 MB. SO EXPECT GOOD COVERAGE OF SHOWERS AGAIN TODAY WHERE THE
INSOLATION WILL BE GREATEST (EASTERN HALF OF THE CWFA). THE
CONVECTION-ALLOWING MODELS ALL SEEM TO HIGHLIGHT THIS (ALTHO SEEM A
BIT SLOW ON TIMING). A CONSENSUS BLENDED IN WITH THE PREVIOUS FCST
RESULTS IN A LIKELY POP ALONG THE I-85 CORRIDOR FROM MIDDAY THRU
LATE AFTN. A QUICK DECREASING TREND SHUD OCCUR BY EARLY EVENING...AS
SHORTWAVE EXITS TO THE EAST AN INSTBY WANES.

AS OF SEVERE THREAT...WE ARE IN A GENERAL THUNDER RISK PER THE DAY 1
SPC CONVECTIVE OUTLOOK. HOWEVER...WITH DCAPE VALUES ALREADY 800-
1000 J/KG ACRS THE LOWER PIEDMONT...AND A LITTLE BETTER
SHEAR...EXPECT A NON-ZERO THREAT FOR DAMAGING WIND GUSTS. THE
CURRENT  WORDING IN THE HWO LOOKS GOOD.

PREVIOUS DISCUSSION...
AT 300 AM EDT SATURDAY...THE LEADING EDGE OF A BROAD UPPER TROUGH
WILL MOVE OVER THE SOUTHERN APPALACHIANS TODAY...WITH A SHORTWAVE
CROSSING OUR AREA AROUND MIDDAY. A WEAKENING COLD FRONT WILL
APPROACH FROM THE NW...REACHING THE AREA BY LATE AFTERNOON OR EARLY
EVENING. DEEP MOISTURE AND LIFT AHEAD OF THE FRONT WILL SUPPORT
PRECIPITATION THROUGH THE DAY...BUT THE BEST CHANCE APPEAR TO BE
TOWARD MIDDAY AND INTO THE AFTERNOON WITH HEATING AND THE PASSAGE
OF THE SHORTWAVE. LOW LEVEL SHEAR APPEARS TO BE A LITTLE BETTER THAN
YESTERDAY...HOWEVER THE BEST INSTABILITY IS OFF TO OUR EAST.
NEVERTHELESS...A FEW SEVERE THUNDERSTORMS CANNOT BE RULED OUT...
ESPECIALLY IN THE EAST. PRECIPITATION IS NOT EXPECTED TO BE
EXCESSIVE...AS WINDS REMAIN PARALLEL TO THE BLUE RIDGE. HIGH
TEMPERATURES WILL RUN SLIGHTLY ABOVE NORMAL.

MODEL TIME HEIGHTS SHOW DRYING FROM ALOFT THIS EVENING AS THE
WEAKENING COLD FRONT MOVES THROUGH...BUT LOW LEVELS APPEAR TO
RETAIN STUBBORN MOISTURE...AND WITH WINDS WEAKENING...LOW CLOUDS MAY
HANG ON...WITH FOG DEVELOPING. LOW TEMPERATURES WILL BE AROUND 5
DEGREES ABOVE NORMAL DUE TO CLOUDS AND ONLY WEAK COLD ADVECTION.

&&

.SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/...
AS OF 215 AM EDT SATURDAY...THE MAIN FEATURE FOR THE SHORT RANGE
PART OF THE FORECAST WILL BE THE RESURGENCE OF AN UPPER RIDGE OVER
THE EASTERN PART OF THE UNITED STATES AS THE UPPER PATTERN AMPLIFIES
ACROSS NORTH AMERICA. THIS PATTERN WILL KEEP A BERMUDA HIGH IN PLACE
THROUGH MONDAY NIGHT THAT WILL KEEP TEMPS ABOVE NORMAL. THE MAIN
JUMP SHOULD OCCUR ON SUNDAY WITH HIGH TEMPS ABOUT 5 DEGREES OR SO
WARMER THAN SATURDAY. RH WILL ALSO INCREASE THROUGH THE PERIOD...
WHICH WILL FUEL PRECIP CHANCES THAT WILL BE CLIMATOLOGICAL AND
DIURNAL IN NATURE. THAT TRANSLATES TO A CHANCE OF PRECIP OVER THE
HIGHER TERRAIN...AND A SLIGHT CHANCE OVER THE PIEDMONT...MAINLY IN
THE AFTERNOON. FORECAST SOUNDINGS SHOW A GENERAL LACK OF BOUYANCY ON
SUNDAY AFTERNOON OWING TO A LAYER OF WARMER AIR AT LOW LEVELS WHICH
SHOULD LIMIT STORM SEVERITY...BUT THIS IMPROVES ENOUGH ON MONDAY TO
RAISE SOME INTEREST.

&&

.LONG TERM /TUESDAY THROUGH FRIDAY/...
AS OF 315 AM EDT SATURDAY...THE MAIN PROBLEM IN THE MEDIUM RANGE
CONTINUES TO BE TIMING DIFFERENCES IN THE MODEL GUIDANCE WITH REGARD
TO THE EASTWARD PROGRESSION OF A HIGH AMPLITUDE UPPER TROF DURING
THE MIDDLE TO LATE PART OF THE WEEK. THE LATEST GFS HAS SLOWED DOWN
THE SYSTEM TO WHERE IT RESEMBLES YESTERDAYS 00Z ECMWF...HOWEVER THE
NEW ECMWF IS ALSO SLOWER AND TRAILS THE GFS BY ABOUT A HALF DAY.
THUS...THE MODEL TREND OF SLOWING THE APPROACH OF THE UPPER TROF AND
ATTENDANT SURFACE FRONT MAY CONTINUE AGAIN TODAY. THUS...OUR PERIOD
OF MAINLY DIURNAL THUNDERSTORMS SHOULD PERSIST ON TUESDAY...WITH THE
PRECIP LOSING THE DIURNAL TENDENCY TO DIMINISH BY TUESDAY NIGHT...AS
THE BERMUDA HIGH CONTINUES TO BE OUR MAIN DRIVING FORCE. FOR THIS
UPDATE...HAVE ELECTED TO STRETCH OUT THE CHANCE OF PRECIP THROUGH
THE DAY THURSDAY OWING TO THE DELAYED TIMING OF FRONTAL PASSAGE
SUGGESTED BY THE ECMWF. SKY COVER WAS ALSO INCREASED DURING THIS
PERIOD ACCORDINGLY. IT STILL SEEMS THAT WE WILL HAVE A PERIOD OF
NUMEROUS STORMS AHEAD OF THE FRONT...BUT CONFIDENCE IS NOT HIGH
ENOUGH TO PIN DOWN WHICH FCST PERIOD THAT THE GREATEST THREAT WILL
EXIST...SO THE FCST KEEPS THE POP IN THE CHANCE RANGE IN SPITE OF
MOSGUIDE AND HPC GUIDANCE THAT HAS LIKELY POPS AT SOME POINT. TEMPS
SHOULD COOL OFF CLOSER TO NORMAL FOR THE END OF THE WEEK.

&&

.AVIATION /15Z SATURDAY THROUGH WEDNESDAY/...
AT KCLT...LOW CLOUD COVER HAS NOT ARRIVED AS EXPECTED AT KCLT...AND
THE LATEST GUIDANCE SUPPORTS HIGH LEVEL CIGS TODAY. THUNDERSTORMS IN
THE AFTERNOON COULD PRODUCE A LOW VFR CIG AND MVFR VSBY HOWEVER. THE
CURRENT DEW POINT DEPRESSION IS NOT QUITE SUPPORTIVE OF DAYBREAK
FOG. SW WINDS WILL BECOME GUSTY WITH HEATING AND MIXING TODAY...EVEN
WITH CLOUD COVER LIMITING WARMING. SW WINDS DIMINISH THIS EVENING.
AT THIS TIME GUIDANCE DOES NOT SUPPORT A VSBY RESTRICTION SUNDAY
MORNING. IF SUBSTANTIAL RAIN FALLS AT THE FIELD TODAY...FOG SHOULD
BE MORE LIKELY...GIVEN THE LIGHT SURFACE WIND.

ELSEWHERE...POCKETS OF FOG HAVE DEVELOPED THIS MORNING...BUT THE
ONLY TAF SITE AFFECTED SO FAR IS KAVL...WHERE LIFR CONDITIONS HAVE
SET UP. CONDITIONS SHOULD IMPROVE THERE BY MID MORNING AS SSW WINDS
COME UP AND BECOME GUSTY AT ALL SITES WITH HEATING AND MIXING...
DESPITE UPPER LEVEL CLOUD COVER. MOISTURE AND INSTABILITY AHEAD OF A
COLD FRONT WILL SUPPORT CONVECTION IN THE AFTERNOON...PERHAPS
EARLIER AT KAVL...WHICH COULD PRODUCE RESTRICTIONS. THUNDERSTORMS
SHOULD DIMINISH ALONG WITH THE WINDS THIS EVENING AS HEATING ABATES.
LIGHT WINDS WILL VEER WNW BEFORE DAWN SUNDAY...EXCEPT NW AT KAVL...
AS THE WEAKENING COLD FRONT MOVES THROUGH. GUIDANCE IS ONLY
SUPPORTIVE OF FOG AT KAVL SUNDAY MORNING. IF FOOTHILLS SITES RECEIVE
ENOUGH RAIN...FOG WOULD BE LIKELY THERE IN LIGHT WINDS.

OUTLOOK...HIGH PRESSURE RETURNS SUNDAY AND MONDAY...BUT AFTERNOON
AND EVENING CONVECTION WILL BE POSSIBLE BOTH DAYS. WEDNESDAY AND
THURSDAY FEATURE A SLOW MOVING COLD FRONT...YIELDING A BETTER CHANCE
OF RESTRICTIONS IN PROLONGED PRECIPITATION.

CONFIDENCE TABLE...

            14-20Z        20-02Z        02-08Z        08-14Z
KCLT       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KGSP       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KAVL       HIGH  99%     HIGH 100%     HIGH  95%     HIGH  90%
KHKY       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KGMU       HIGH 100%     HIGH 100%     HIGH 100%     HIGH  95%
KAND       HIGH 100%     HIGH 100%     HIGH 100%     HIGH  90%

THE PERCENTAGE REFLECTS THE NUMBER OF GUIDANCE MEMBERS AGREEING
WITH THE SCHEDULED TAF ISSUANCE FLIGHT RULE CATEGORY. COMPLETE
HOURLY EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLES AND ENSEMBLE
FORECASTS ARE AVAILABLE AT THE FOLLOWING LINK: (MUST BE LOWER CASE)

WWW.WEATHER.GOV/GSP/AVIATION_TABLES

&&

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

&&

SYNOPSIS...PM
NEAR TERM...ARK/JAT
SHORT TERM...PM
LONG TERM...PM
AVIATION...JAT
Hazardous weather outlook, May 10, 5:46 AM EDT, 7 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
546 AM EDT SAT MAY 10 2014

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-111000-
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-
546 AM EDT SAT MAY 10 2014

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 WILL DEVELOP ACROSS THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA AGAIN TODAY...MAINLY THIS AFTERNOON. THE
STRONGER THUNDERSTORMS MAY OCCUR OVER THE PIEDMONT OF THE
CAROLINAS. ONE OR TWO OF THE STORMS MAY GROW LARGE ENOUGH TO
PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL. OTHERWISE...THE MOST
LIKELY THREATS ARE FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY
DOWNPOURS.

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

..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

PM

In the hours before

Special weather statement, May 10, 10:03 AM EDT, 3 hours 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1003 AM EDT SAT MAY 10 2014

NCZ068-508-510-SCZ007-008-101445-
CHEROKEE-CLEVELAND-EASTERN POLK-GREATER RUTHERFORD-SPARTANBURG-
1003 AM EDT SAT MAY 10 2014

...STRONG THUNDERSTORMS WILL AFFECT RUTHERFORD...EASTERN POLK...
NORTHERN SPARTANBURG...NORTHWESTERN CHEROKEE AND WESTERN CLEVELAND
COUNTIES THROUGH 1045 AM EDT...

AT 1001 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES EAST OF LAKE
ADGER TO 6 MILES WEST OF INMAN...MOVING EAST AT 40 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  LAKE BOWEN...
  RUTHERFORDTON...
  SPINDALE...
  FOREST CITY...
  BOSTIC...
  COWPENS NATIONAL BATTLEFIELD...

SMALL HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3513 8163 3503 8222 3513 8222 3538 8217
      3556 8162

JOH
Special weather statement, May 10, 10:47 AM EDT, 2 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1047 AM EDT SAT MAY 10 2014

NCZ035-036-056-068-069-502-504-508-101530-
ALEXANDER-CATAWBA-CLEVELAND-GREATER BURKE-GREATER CALDWELL-GREATER
RUTHERFORD-IREDELL-LINCOLN-
1047 AM EDT SAT MAY 10 2014

...STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN BURKE...SOUTHEASTERN
CALDWELL...EAST CENTRAL RUTHERFORD...LINCOLN...WESTERN IREDELL...
NORTHERN CLEVELAND...CATAWBA AND ALEXANDER COUNTIES THROUGH 1130 AM
EDT...

AT 1045 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM RUTHERFORD COLLEGE
TO POLKVILLE...MOVING NORTHEAST AT 40 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  HUDSON...
  GRANITE FALLS...
  LONGVIEW...
  MOUNTAIN VIEW...
  ELLENDALE...
  TAYLORSVILLE...

SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THESE
STORMS.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3546 8102 3541 8128 3542 8145 3539 8143
      3531 8177 3584 8158 3606 8092 3606 8088

JOH
Special weather statement, May 10, 11:38 AM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1138 AM EDT SAT MAY 10 2014

NCZ065-508>510-SCZ003-006-007-101630-
EASTERN POLK-GREATER GREENVILLE-GREATER RUTHERFORD-GREENVILLE
MOUNTAINS-HENDERSON-POLK MOUNTAINS-SPARTANBURG-
1138 AM EDT SAT MAY 10 2014

...STRONG THUNDERSTORMS WILL AFFECT NORTHERN GREENVILLE...WESTERN
RUTHERFORD...POLK...NORTHWESTERN SPARTANBURG AND SOUTH CENTRAL
HENDERSON COUNTIES THROUGH 1230 PM EDT...

AT 1136 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HIGHWAY 25 AT
HIGHWAY 11 TO TRAVELERS REST...MOVING NORTHEAST AT 40 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  LAKE ROBINSON...
  TRYON...
  COLUMBUS...
  LAKE ADGER...
  RUTHERFORDTON...

SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THESE
STORMS.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3549 8196 3518 8181 3519 8187 3515 8186
      3493 8246 3516 8255

JOH
Special weather statement, May 10, 12:31 PM EDT, 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1231 PM EDT SAT MAY 10 2014

NCZ053-065-505-101715-
BUNCOMBE-HENDERSON-MCDOWELL MOUNTAINS-
1231 PM EDT SAT MAY 10 2014

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MCDOWELL...NORTHERN
HENDERSON AND SOUTHEASTERN BUNCOMBE COUNTIES THROUGH 115 PM EDT...

AT 1229 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR ARDEN...OR 10 MILES NORTHWEST OF
HENDERSONVILLE...MOVING NORTHEAST AT 40 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BILTMORE FOREST...
  FAIRVIEW...
  SWANNANOA...
  BLACK MOUNTAIN...

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3570 8226 3552 8216 3551 8223 3549 8223
      3547 8224 3546 8225 3547 8226 3545 8227
      3534 8255 3547 8266 3573 8230

JOH
Special weather statement, May 10, 1:06 PM EDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
106 PM EDT SAT MAY 10 2014

NCZ049-053-505-506-101745-
BUNCOMBE-EASTERN MCDOWELL-MCDOWELL MOUNTAINS-YANCEY-
106 PM EDT SAT MAY 10 2014

...A STRONG THUNDERSTORM WILL AFFECT WESTERN MCDOWELL...SOUTHEASTERN
YANCEY AND EAST CENTRAL BUNCOMBE COUNTIES THROUGH 145 PM EDT...

AT 106 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR BLACK MOUNTAIN...OR 15 MILES EAST OF
DOWNTOWN ASHEVILLE...MOVING NORTHEAST AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  OLD FORT...
  MARION...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3555 8192 3554 8199 3555 8201 3553 8203
      3553 8209 3552 8214 3553 8217 3552 8222
      3549 8223 3548 8230 3550 8233 3549 8235
      3563 8242 3585 8209

JOH
Special weather statement, May 10, 1:18 PM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
118 PM EDT SAT MAY 10 2014

NCZ508-SCZ006>008-101800-
CHEROKEE-GREATER GREENVILLE-GREATER RUTHERFORD-SPARTANBURG-
118 PM EDT SAT MAY 10 2014

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL GREENVILLE...SOUTHEASTERN
RUTHERFORD...NORTHERN SPARTANBURG AND NORTHWESTERN CHEROKEE COUNTIES
THROUGH 200 PM EDT...

AT 112 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM LAKE BOWEN TO
HAYWOOD MALL...MOVING NORTHEAST AT 30 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  LYMAN...
  REIDVILLE...
  CLIFFSIDE...
  COWPENS NATIONAL BATTLEFIELD...
  CEDAR SPRINGS...
  COWPENS...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THESE STORMS.

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3478 8246 3510 8220 3519 8200 3519 8198
      3520 8197 3532 8172 3520 8177 3518 8176
      3518 8173 3494 8177 3473 8246

JOH

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 1:18 PM EDTSpecial Weather StatementGSPSpartanburg42 min
May 10, 1:35 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg55 min
May 10, 2:04 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens, Spartanburg56 min
May 10, 2:23 PM EDTSevere Thunderstorm WarningGSPYork67 min
May 10, 2:50 PM EDTSevere Thunderstorm WarningGSPYork55 min
May 10, 3:07 PM EDTSevere Thunderstorm WarningGSPChester, York53 min
May 10, 3:41 PM EDTSevere Thunderstorm WarningGSPYork64 min
May 10, 3:49 PM EDTSevere Thunderstorm WarningGSPYork56 min
May 10, 4:37 PM EDTSpecial Weather StatementGSPGreenville23 min
May 10, 9:40 AM EDTSpecial Weather StatementGSPPolk50 min
May 10, 10:03 AM EDTSpecial Weather StatementGSPPolk, Rutherford42 min
May 10, 10:47 AM EDTSpecial Weather StatementGSPAlexander, Catawba, Lincoln43 min
May 10, 11:38 AM EDTSpecial Weather StatementGSPPolk, Rutherford52 min
May 10, 12:31 PM EDTSpecial Weather StatementGSPBuncombe44 min
May 10, 1:06 PM EDTSpecial Weather StatementGSPMcDowell39 min
May 10, 2:19 PM EDTSevere Thunderstorm WarningGSPCatawba, Cleveland, Gaston, Lincoln56 min
May 10, 2:22 PM EDTSpecial Weather StatementGSPMecklenburg38 min
May 10, 2:26 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg64 min
May 10, 3:05 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan55 min
May 10, 3:25 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan, Union65 min
May 10, 3:30 PM EDTSevere Thunderstorm WarningGSPDavie, Rowan60 min
May 10, 3:36 PM EDTSevere Thunderstorm WarningGSPCabarrus, Davie, Iredell, Rowan54 min
May 10, 4:48 PM EDTSpecial Weather StatementGSPCabarrus, Rowan, Union42 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2014Severe Thunderstorm Warnings in North Carolina, 2014Every severe thunderstorm warning in 2014

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.