Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 271, NWS Greenville-Spartanburg, SC

August 20, 2014Henderson County, Transylvania County, North Carolina; Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 20, 2014, 4:50 PM EDT for Henderson County, Transylvania County, North Carolina; Greenville County, South Carolina. It was in force for 43 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 20, 2014, 4:50 PM EDT (20:50 UTC)
Expired
Aug 20, 2014, 5:33 PM EDT
In force
43 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Henderson County, NC, Transylvania County, NC, Greenville County, SC

The radar

The Greer radar (KGSP), 36 km from the middle of the area, began a volume at 20:53 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 20, 5:02 PM EDTHAIL 0.752 Nnw Little River, NCUP TO PENNY SIZED HAIL REPORTED BETWEEN PENROSE AND LITTLE RIVER, NC.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.8 hours before the alert went out and 262 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 2014-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 423 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 2014-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
423 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

574 
WUUS52 KGSP 202050
SVRGSP
NCC089-175-SCC045-202145-
/O.NEW.KGSP.SV.W.0271.140820T2050Z-140820T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
450 PM EDT WED AUG 20 2014

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL HENDERSON COUNTY IN WESTERN NORTH CAROLINA...
  EAST CENTRAL TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA...
  NORTHWESTERN GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 545 PM EDT

* AT 448 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
  DUPONT STATE FOREST...OR 5 MILES EAST OF BREVARD...AND MOVING
  SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  DUPONT STATE FOREST.
  CAESARS HEAD.
  JONES GAP STATE PARK.
  HIGHWAY 25 AT HIGHWAY 11 AND MARIETTA.
  TIGERVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3510 8226 3496 8251 3499 8254 3501 8254
      3502 8256 3506 8259 3507 8257 3507 8261
      3526 8276 3536 8261
TIME...MOT...LOC 2049Z 319DEG 23KT 3524 8263

$$

CDG
2 follow-up statements
736 
WWUS52 KGSP 202116
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
516 PM EDT WED AUG 20 2014

NCC089-175-SCC045-202145-
/O.CON.KGSP.SV.W.0271.000000T0000Z-140820T2145Z/
HENDERSON NC-TRANSYLVANIA NC-GREENVILLE SC-
516 PM EDT WED AUG 20 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
GREENVILLE...EAST CENTRAL TRANSYLVANIA AND SOUTH CENTRAL HENDERSON
COUNTIES UNTIL 545 PM EDT...

AT 514 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
DUPONT STATE FOREST...OR 10 MILES SOUTHEAST OF BREVARD...MOVING
SOUTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  HIGHWAY 25 AT HIGHWAY 11 AND MARIETTA.
  TIGERVILLE.

LAT...LON 3531 8255 3510 8226 3496 8251 3499 8254
      3501 8254 3502 8256 3506 8259 3507 8257
      3507 8261 3521 8272
TIME...MOT...LOC 2116Z 319DEG 23KT 3517 8256

$$

CDG
258 
WWUS52 KGSP 202133
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
533 PM EDT WED AUG 20 2014

NCC089-175-SCC045-202143-
/O.CAN.KGSP.SV.W.0271.000000T0000Z-140820T2145Z/
HENDERSON NC-TRANSYLVANIA NC-GREENVILLE SC-
533 PM EDT WED AUG 20 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GREENVILLE...EAST
CENTRAL TRANSYLVANIA AND SOUTH CENTRAL HENDERSON COUNTIES IS
CANCELLED...

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

LAT...LON 3531 8255 3510 8226 3496 8251 3499 8254
      3501 8254 3502 8256 3506 8259 3507 8257
      3507 8261 3521 8272
TIME...MOT...LOC 2133Z 319DEG 23KT 3509 8247

$$

CDG

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 20, 4:31 PM EDT, 19 minutes earlier.

Area forecast discussion, Aug 20, 4:31 PM EDT, 19 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
431 PM EDT WED AUG 20 2014

.SYNOPSIS...
A BROAD UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BUILD ACROSS THE
MISSISSIPPI RIVER VALLEY OVER THE NEXT FEW DAYS AND LINGER FOR THE
REST OF THE WORK WEEK...RESULTING IN ABOVE NORMAL TEMPERATURES. A
WEAK COLD FRONT WILL THEN PUSH INTO THE AREA FROM NORTHEAST SATURDAY
AND BRING SOME MINOR RELIEF FROM THE HEAT.

&&

.NEAR TERM /THROUGH THURSDAY/...
AS OF 425 PM...CLUSTER OF TSRA ASSOCIATED WITH THE PREVIOUS MCS HAVE
FINALLY DISSIPATED AS THEY MOVED SOUTH OF THE CWFA. ADDITIONAL
STORMS ARE FORMING ACROSS THE MTNS AHEAD OF ANOTHER SHORTWAVE. THESE
STORMS WILL MOVE SOUTH INTO THE UPSTATE AND NE GA...AND ACROSS THE
NC MTNS THRU THE AFTERNOON AND POSSIBLY INTO THE EARLY EVENING...
ESPECIALLY ACROSS THE NC MTNS. WITH THE AMOUNT OF INSTABILITY AND
DCAPE VALUES OVER THE AREA...CANNOT RULE OUT ADDITIONAL SEVERE
STORMS. HAVE UPDATED POP TO INCLUDE THESE FEATURES. OTHERWISE...
UPDATES FOR CURRENT CONDITIONS.

PREVIOUS DISCUSSION...A PERSISTENT SMALL/STRONG TO OCCASIONALLY
SEVERE CONVECTIVE CLUSTER CONTINUES TO DROP SOUTHEAST TOWARD
SPARTANBURG COUNTY. SCT CONVECTION IS FINALLY BEGINNING TO UNZIP A
BIT ALONG THE OUTFLOW BOUNDARY ALONG THE I-40 CORRIDOR INTO THE NC
PIEDMONT. OTHERWISE... THE LATEST SPC MESOANALYSIS DEPICTS A MINIMA
IN CAPE ACROSS THE AREA...WITH CAPE EXCEEDING 3000 J/KG JUST TO OUR
EAST... AND MORE THAN 4000 J/KG ACROSS EAST TENN INTO NRN/CTRL
GEORGIA. OTHER THAN FEATURING 40-60 POPS DOWNSTREAM OF THE ONGOING
ACTIVITY...THE HIGHEST POPS HAVE BEEN DELAYED UNTIL EVENING ACROSS
WESTERN AREAS. ROBUST CONVECTION IS DEVELOPING WITHIN THE VERY
UNSTABLE AIR ACROSS EAST TENN...AND IT APPEARS COVERAGE WILL ONLY
INCREASE THERE THROUGH THE AFTERNOON...WITH SOME UPSCALE GROWTH
POSSIBLE IF NOT LIKELY IN LIGHT OF 0-3KM SHEAR OF AROUND 20 KTS. WE
HAVE THEREFORE INCREASED POPS TO LIKELY THIS EVENING ACROSS THE
SOUTHWEST MTNS OF NC. BRIEF LARGE HAIL AND DAMAGING WINDS WILL
REMAIN POSSIBLE...WITH DOWNBURST POTENTIAL ENHANCED WITH ANY
ORGANIZED CLUSTERS.

CONVECTION SHOULD WANE AND/OR PUSH SOUTH OF THE FORECAST AREA BY
LATE EVENING. HOWEVER...LOW CHANCE POPS WILL BE MAINTAINED ACROSS
THE FAR WESTERN MTNS...ESP THE NORTHERN MTNS...AS ADDITIONAL SHORT
WAVE TROUGHS AND/OR MCV/S DROPPING SOUTHEAST...DOWNSTREAM OF
BUILDING UPPER RIDGE WILL CONTINUE TO CLIP THE FORECAST AREA.
OTHERWISE...UPPER HEIGHTS WILL CONTINUE TO BUILD ACROSS THE
SOUTHEAST INTO THURSDAY...RESULTING IN WARMER MID-LEVEL TEMPS AND A
DEEPER/RELATIVELY DRIER BOUNDARY LAYER WITH HIGHER LFC/S.
NEVERTHELESS...FORECAST SOUNDINGS ARE LARGELY UNCAPPED AND QUITE
UNSTABLE BY AFTERNOON. POPS WILL BE ADVERTISED NEAR-CLIMO...WITH
SLIGHT/LOW CHANCE POPS OUTSIDE THE MTNS...AND CHANCES OVER THE HIGH
TERRAIN. TEMPS WILL BE A BIT ABOVE NORMAL THROUGH THE PERIOD.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
AS OF 255 PM EDT WEDNESDAY... THE UPPER RIDGE CURRENTLY IN PLACE
FROM THE WESTERN GULF OF MEXICO TO THE NORTHERN PLAINS...WILL
RETROGRADE OR BECOME SLIGHTLY RE-ORIENTED BY SATURDAY. MEANWHILE THE
UPPER LOW PIN-WHEELING ACROSS THE GREAT LAKES...WILL DRIFT TOWARD
THE NEW ENGLAND COAST.

THEREFORE SENSIBLE WEATHER IN THE SHORT TERM SUGGESTS A CONTINUOUS
FLOW OF S/W'S WILL SLIDE SEWD (IN THE NWLY FLOW ALOFT) TOWARD OUR
REGION THIS PERIOD. IT APPEARS ONE SUCH S/W COULD CLIP PARTS OF THE
NORTHERN AND EASTERN SECTIONS OF OUR FORECAST AREA THURSDAY NIGHT.
THEREFORE...AFTER SOME THURSDAY EVENING NC POPS FOR UPSLOPING ON THE
WEST FACING SLOPES...WE WILL ADJUST POPS ACROSS OUR NRN AND ERN
COUNTIES FOR CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT.

OTHER THEN RIDGE TOP STORMS FRIDAY...IT IS HARD TO NAIL DOWN ANY
OTHER AREA FOR HIGHER POPS...ALTHOUGH FLOW ALOFT SUGGESTS OUR NRN
SECTIONS MAY HAVE A BETTER CHANCE. WITH MOISTURE AND INSTABILITY IN
PLACE WILL CARRY CHANCE IN THE NORTH AND SLIGHT CHANCE SOUTHERN
SECTIONS.

IT APPEARS A BACK DOOR COLD FRONT WILL EDGE TOWARD THE REGION
SATURDAY WITH MORE CLOUD COVER...AND PERHAPS AN INCREASE IN OVERALL
PRECIPITATION POTENTIAL. WE HAVE NOT GONE OVERBOARD YET TO SEE IF
THE TREND CONTINUES DURING THIS TIME-FRAME.

GUIDE TEMPERATURES ON FRIDAY SHOULD BE VERY WARM OR HOT...WITH
APPARENT TEMPERATURES CLIMBING TO 100 DEGREES OR BETTER IN OUR SC
PIEDMONT ZONES. WE HAVE USED MORE OF A CONSENSUS OF TEMPERATURES...
RATHER THAN MOS VALUE GUIDE ON FRIDAY AND SATURDAY. TEMPERATURE
TREND AS MENTIONED HOT ON FRIDAY...BUT KNOCKED BACK SOMEWHAT ON
SATURDAY...BECAUSE OF CLOUDS AND POTENTIAL PRECIPITATION. THERMAL
PROFILE ALSO SUGGESTS THIS PLAN.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
AS OF 1230 PM WEDNESDAY...MEDIUM RANGE MODELS ARE IN DECENT ENUF
AGREEMENT WITH RESPECT TO THE MEAN PATTERN FOR THE FIRST HALF OF THE
EXTENDED PERIOD FEATURING LLVL RIDGING POKING SSW INTO THE CWFA. THE
COMBINATION OF THE LLVL EASTERLY FLOW AND THE HIGHLY AMPLIFIED NLY
FLOW SHOULD RESULT IN ENUF FORCING FOR AT LEAST SCATTERED
SHOWERS...AND MAX TEMPERATURES A FEW DEG F BELOW PERSISTANCE AND A
CATEGORY OR TWO BELOW CLIMO SUNDAY AND MONDAY.

WITH LLVL RIDGING LIKELY TO LINGER THRU TUESDAY...THERE REMAINS ABOVE
NORMAL CONFIDENCE THAT MAXIMUM TEMPERATURES WILL CONTINUE TO AVERAGE
BELOW CLIMO. IT REMAINS TO BE SEEN ON JUST HOW MUCH FORCING IS
AVAILABLE TO TRIGGER SHOWER ACTIVITY...SO JUST A TOKEN SLIGHT AND/OR
SMALL POP WILL REMAIN.

&&

.AVIATION /21Z WEDNESDAY THROUGH MONDAY/...
AT KCLT AND ELSEWHERE...CONVECTION OVER THE NC PIEDMONT HAS
DISSIPATED BUT IS DEVELOPING ACROSS THE NC MTNS AND MOVING INTO THE
UPSTATE. WILL HAVE TO WATCH ALL THE WRN SITES FOR AMD AS CELLS COULD
MOVE OVERHEAD THRU THE AFTERNOON AND POSSIBLY THE EARLY EVENING.
KCLT HAS THE LEAST CHC OF ANY ADDITIONAL CONVECTION.

EVEN OUR MOST RELIABLE GUIDANCE IS ONCE AGAIN HITTING THE FOG HARD
LATE TONIGHT...AS IT HAS BEEN DOING THE PASTS SEVERAL MORNINGS...
WITH VERY POOR VERIFICATION RESULTS. THEREFORE...WE HAVE IMPROVED
THE VISBY FORECAST CONSIDERABLY OVER WHAT GUIDANCE IS ADVERTISING...
BUT THIS IS STILL RESULTING IN A 3SM FORECAST AT KAVL. OTHERWISE...
VFR CONDITIONS ARE EXPECTED THROUGH THE PERIOD OUTSIDE OF SHRA/
TSRA.

OUTLOOK...SCT AFTERNOON CONVECTION AND PATCHY EARLY MORNING FOG WILL
REMAIN IN THE FORECAST THROUGH THE WEEK. THERE WILL ALSO BE AN
OUTSIDE CHANCE FOR REMNANT ORGANIZED CONVECTION APPROACHING THE AREA
FROM THE NW DURING THE LATE NIGHT/EARLY MORNING HOURS.

CONFIDENCE TABLE...

            20-02Z        02-08Z        08-14Z        14-20Z
KCLT       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KGSP       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KAVL       HIGH 100%     HIGH  91%     HIGH  94%     HIGH  95%
KHKY       HIGH 100%     HIGH 100%     HIGH  94%     HIGH 100%
KGMU       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KAND       HIGH 100%     HIGH 100%     HIGH  83%     HIGH 100%

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...CSH
NEAR TERM...JDL/RWH
SHORT TERM...TS
LONG TERM...CSH
AVIATION...JDL/RWH
Hazardous weather outlook, Aug 20, 4:21 PM EDT, 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
421 PM EDT WED AUG 20 2014

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-211000-
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-
421 PM EDT WED AUG 20 2014

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

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS WILL CONTINUE INTO THE EVENING ACROSS THE
REGION...ESPECIALLY WEST OF INTERSTATE 77. THE THUNDERSTORMS WILL
GRADUALLY WEAKEN AFTER SUNSET...BUT STILL MAY PERSIST IN AN
ISOLATED NATURE. SOME OF THE STORMS MAY BE SEVERE WITH DAMAGING
WINDS...LARGE HAIL...AS WELL AS HEAVY DOWNPOURS AND LIGHTNING
STRIKES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..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.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...FLASH FLOODING TO OUR OFFICE.

STUREY

In the hours before

Special weather statement, Aug 20, 4:38 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
438 PM EDT WED AUG 20 2014

NCZ051-058-202130-
GRAHAM-SWAIN-
438 PM EDT WED AUG 20 2014

...A STRONG THUNDERSTORM WILL AFFECT WESTERN SWAIN AND EASTERN GRAHAM
COUNTIES THROUGH 530 PM EDT...

AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 8 MILES NORTH OF FONTANA LAKE...OR 16 MILES
SOUTHWEST OF GATLINBURG...MOVING SOUTHEAST AT 25 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  FONTANA LAKE...
  STECOAH...
  BRYSON CITY...
  ALARKA...

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

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 3557 8377 3558 8360 3557 8359 3557 8348
      3548 8334 3541 8336 3537 8333 3533 8334
      3532 8344 3530 8346 3531 8349 3528 8369
      3553 8385

CDG
Local storm report, Aug 20, 4:40 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
440 PM EDT WED AUG 20 2014

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

0233 PM     TSTM WND DMG     5 NNE FINGERVILLE       35.19N 81.97W
08/20/2014                   POLK               NC   FIRE DEPT/RESCUE

            GREEN CREEK FIRE DEPARTMENT REPORTS 3 TREES DOWN ON
            AIRPORT ROAD.

&&

HG
Local storm report, Aug 20, 4:42 PM EDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
442 PM EDT WED AUG 20 2014

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

0232 PM     TSTM WND DMG     5 NNE FINGERVILLE       35.20N 81.97W
08/20/2014                   POLK               NC   FIRE DEPT/RESCUE

            GREEN CREEK FIRE DEPARTMENT REPORTS POWER LINES DOWN NEAR
            4800 BLOCK OF CHESNEE ROAD.

&&

HG
Local storm report, Aug 20, 4:44 PM EDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
444 PM EDT WED AUG 20 2014

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

0232 PM     TSTM WND DMG     5 NNE FINGERVILLE       35.21N 81.98W
08/20/2014                   POLK               NC   FIRE DEPT/RESCUE

            TREES DOWN IN 4200 BLOCK OF CHESNEE ROAD.

&&

HG
Local storm report, Aug 20, 4:47 PM EDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
447 PM EDT WED AUG 20 2014

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

0231 PM     TSTM WND DMG     5 N FINGERVILLE         35.21N 82.02W
08/20/2014                   POLK               NC   FIRE DEPT/RESCUE

            TREES DOWN ALONG 2200 BLOCK OF CHESNEE HIGHWAY.

&&

HG
Local storm report, Aug 20, 4:50 PM EDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
450 PM EDT WED AUG 20 2014

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

0233 PM     TSTM WND DMG     5 NNE FINGERVILLE       35.20N 81.97W
08/20/2014                   POLK               NC   FIRE DEPT/RESCUE

            GREEN CREEK FIRE DEPARTMENT REPORTS A CARPORT STRUCTURE
            DAMAGED BY WIND AT AIRPORT ROAD AND COUNTY LINE ROAD.

&&

HG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 11:06 AM EDTSpecial Weather StatementGSPAvery, Mitchell54 min
Aug 20, 12:22 PM EDTSpecial Weather StatementGSPMcDowell38 min
Aug 20, 12:51 PM EDTSevere Thunderstorm WarningGSPMcDowell39 min
Aug 20, 1:30 PM EDTSpecial Weather StatementGSPRutherford30 min
Aug 20, 2:13 PM EDTSpecial Weather StatementGSPRutherford32 min
Aug 20, 2:17 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford43 min
Aug 20, 2:51 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln54 min
Aug 20, 4:26 PM EDTSpecial Weather StatementGSPTransylvania64 min
Aug 20, 4:38 PM EDTSpecial Weather StatementGSPSwain52 min
Aug 20, 4:40 PM EDTSevere Thunderstorm WarningGSPTransylvania65 min
Aug 20, 4:53 PM EDTSpecial Weather StatementGSPMadison52 min
Aug 20, 5:00 PM EDTSevere Thunderstorm WarningGSPMadison, Yancey60 min
Aug 20, 5:37 PM EDTSevere Thunderstorm WarningGSPMitchell, Yancey53 min
Aug 20, 6:05 PM EDTSpecial Weather StatementGSPAvery40 min
Aug 20, 2:49 PM EDTSevere Thunderstorm WarningGSPSpartanburg38 min
Aug 20, 3:26 PM EDTSpecial Weather StatementGSPUnion64 min
Aug 20, 3:44 PM EDTSpecial Weather StatementGSPYork61 min
Aug 20, 5:31 PM EDTSevere Thunderstorm WarningGSPOconee44 min
Aug 20, 5:41 PM EDTSevere Thunderstorm WarningGSPAnderson, Pickens64 min
Aug 20, 6:19 PM EDTSpecial Weather StatementGSPGreenville41 min
Aug 20, 6:43 PM EDTSevere Thunderstorm WarningGSPAnderson45 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2014Severe Thunderstorm Warnings in South 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.