Alert archive / South Carolina / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 270, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 20, 2014, 4:40 PM EDT for Greenville County, Pickens County, South Carolina; Transylvania County, North Carolina. It was in force for 65 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
- Aug 20, 2014, 4:40 PM EDT (20:40 UTC)
- Expired
- Aug 20, 2014, 5:45 PM EDT
- In force
- 65 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Transylvania County, NC, Greenville County, SC, Pickens County, SC
The radar
The Greer radar (KGSP), 44 km from the middle of the area, began a volume at 20:43 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 20, 5:32 PM EDT | HAIL 1 | 3 Nw Pickens, SC | 1 INCH HAIL NW OF PICKENS. |
| Aug 20, 5:48 PM EDT | HAIL 1 | Ne Pickens, SC |
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 52 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.7 hours before the alert went out and 251 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.
- Mixed-layer CAPE
- 1258 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 821 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
050
WUUS52 KGSP 202040
SVRGSP
NCC175-SCC045-077-202145-
/O.NEW.KGSP.SV.W.0270.140820T2040Z-140820T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
440 PM EDT WED AUG 20 2014
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA...
NORTHWESTERN GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA...
NORTHERN PICKENS COUNTY IN UPSTATE SOUTH CAROLINA...
* UNTIL 545 PM EDT
* AT 438 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
ROSMAN...OR 9 MILES SOUTHWEST OF BREVARD...AND MOVING SOUTHEAST AT
25 MPH.
* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
ROCKY BOTTOM.
TABLE ROCK STATE PARK.
PICKENS.
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 3508 8256 3492 8245 3480 8276 3512 8293
3521 8271
TIME...MOT...LOC 2040Z 329DEG 21KT 3511 8278
$$
CDG2 follow-up statements
163
WWUS52 KGSP 202105
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
505 PM EDT WED AUG 20 2014
NCC175-SCC045-077-202145-
/O.CON.KGSP.SV.W.0270.000000T0000Z-140820T2145Z/
TRANSYLVANIA NC-GREENVILLE SC-PICKENS SC-
505 PM EDT WED AUG 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
PICKENS...NORTHWESTERN GREENVILLE AND SOUTHERN TRANSYLVANIA COUNTIES
UNTIL 545 PM EDT...
AT 505 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
TABLE ROCK STATE PARK...OR 11 MILES NORTH OF PICKENS...MOVING
SOUTHEAST AT 25 MPH.
THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
PICKENS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
THE SPECIFIC LOCATION WHERE IT OCCURRED.
&&
LAT...LON 3508 8256 3492 8245 3480 8276 3512 8293
3521 8271
TIME...MOT...LOC 2106Z 329DEG 21KT 3503 8273
$$
CDG579
WWUS52 KGSP 202132
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
532 PM EDT WED AUG 20 2014
NCC175-SCC045-202143-
/O.CAN.KGSP.SV.W.0270.000000T0000Z-140820T2145Z/
TRANSYLVANIA NC-GREENVILLE SC-
532 PM EDT WED AUG 20 2014
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GREENVILLE AND
SOUTHERN TRANSYLVANIA COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS AREA.
LAT...LON 3480 8276 3505 8290 3508 8280 3508 8278
3507 8278 3505 8274 3506 8271 3507 8258
3505 8260 3503 8258 3501 8260 3501 8254
3498 8254 3490 8250
TIME...MOT...LOC 2133Z 329DEG 21KT 3489 8263
$$
SCC077-202145-
/O.CON.KGSP.SV.W.0270.000000T0000Z-140820T2145Z/
PICKENS SC-
532 PM EDT WED AUG 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
PICKENS COUNTY UNTIL 545 PM EDT...
AT 532 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
PICKENS...MOVING SOUTHEAST AT 25 MPH.
THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
PICKENS COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS SEVERE THUNDERSTORM IS ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.
THIS SEVERE THUNDERSTORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL.
FLOODING OF DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. DO NOT
DRIVE THROUGH AREAS WHERE WATER IS FLOWING OVER THE ROAD.
PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
THE SPECIFIC LOCATION WHERE IT OCCURRED.
&&
LAT...LON 3480 8276 3505 8290 3508 8280 3508 8278
3507 8278 3505 8274 3506 8271 3507 8258
3505 8260 3503 8258 3501 8260 3501 8254
3498 8254 3490 8250
TIME...MOT...LOC 2133Z 329DEG 21KT 3489 8263
$$
CDGWhat 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, 9 minutes earlier.
Area forecast discussion, Aug 20, 4:31 PM EDT, 9 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/RWHHazardous weather outlook, Aug 20, 4:21 PM EDT, 19 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
Local storm report, Aug 20, 4:03 PM EDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
403 PM EDT WED AUG 20 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0326 PM TSTM WND DMG 5 NNW GASTONIA 35.32N 81.21W
08/20/2014 GASTON NC AMATEUR RADIO
TREE AND HIGH TENSION POWER LINES ACROSS ROADWAY
&&
RWHSpecial weather statement, Aug 20, 4:26 PM EDT, 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
426 PM EDT WED AUG 20 2014
NCZ064-065-SCZ002-003-202130-
GREENVILLE MOUNTAINS-HENDERSON-PICKENS MOUNTAINS-TRANSYLVANIA-
426 PM EDT WED AUG 20 2014
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN PICKENS...
NORTHWESTERN GREENVILLE...EASTERN TRANSYLVANIA AND SOUTHWESTERN
HENDERSON COUNTIES THROUGH 530 PM EDT...
AT 424 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR ETOWAH...OR 7 MILES NORTHEAST OF BREVARD...
MOVING SOUTHEAST AT 20 MPH.
THIS STORM WILL IMPACT LOCATIONS NEAR...
DUPONT STATE FOREST...
FLAT ROCK...
JONES GAP STATE PARK...
HIGHWAY 25 AT HIGHWAY 11...
MARIETTA...
SMALL HAIL...WIND GUSTS UP TO 40 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 3520 8235 3519 8235 3519 8233 3513 8226
3493 8263 3493 8264 3488 8275 3523 8290
3542 8262
CDGLocal storm report, Aug 20, 4:34 PM EDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
434 PM EDT WED AUG 20 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0240 PM LIGHTNING 5 N FINGERVILLE 35.21N 82.02W
08/20/2014 POLK NC FIRE DEPT/RESCUE
STRUCTURE FIRE FROM LIGHTNING STRIKE 3816 CHESNEE
HIGHWAY.
&&
HGLocal storm report, Aug 20, 4:38 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
438 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 NNE FINGERVILLE 35.21N 81.98W
08/20/2014 POLK NC FIRE DEPT/RESCUE
SEVERAL TREES DOWN NEAR INTERSECTION OF SANDY SPRINGS
ROAD AND CHESNEE ROAD.
&&
HGSpecial weather statement, Aug 20, 4:38 PM EDT, 2 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
CDGLocal storm report, Aug 20, 4:40 PM EDT, 0 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.
&&
HGThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:17 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 43 min |
| Aug 20, 2:49 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 38 min |
| Aug 20, 3:26 PM EDT | Special Weather Statement | GSP | Union | 64 min |
| Aug 20, 3:44 PM EDT | Special Weather Statement | GSP | York | 61 min |
| Aug 20, 4:50 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 43 min |
| Aug 20, 5:31 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 44 min |
| Aug 20, 5:41 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Pickens | 64 min |
| Aug 20, 6:19 PM EDT | Special Weather Statement | GSP | Greenville | 41 min |
| Aug 20, 6:43 PM EDT | Severe Thunderstorm Warning | GSP | Anderson | 45 min |
| Aug 20, 11:06 AM EDT | Special Weather Statement | GSP | Avery, Mitchell | 54 min |
| Aug 20, 12:22 PM EDT | Special Weather Statement | GSP | McDowell | 38 min |
| Aug 20, 12:51 PM EDT | Severe Thunderstorm Warning | GSP | McDowell | 39 min |
| Aug 20, 1:30 PM EDT | Special Weather Statement | GSP | Rutherford | 30 min |
| Aug 20, 2:13 PM EDT | Special Weather Statement | GSP | Rutherford | 32 min |
| Aug 20, 2:51 PM EDT | Severe Thunderstorm Warning | GSP | Gaston, Lincoln | 54 min |
| Aug 20, 4:26 PM EDT | Special Weather Statement | GSP | Transylvania | 64 min |
| Aug 20, 4:38 PM EDT | Special Weather Statement | GSP | Swain | 52 min |
| Aug 20, 4:53 PM EDT | Special Weather Statement | GSP | Madison | 52 min |
| Aug 20, 5:00 PM EDT | Severe Thunderstorm Warning | GSP | Madison, Yancey | 60 min |
| Aug 20, 5:37 PM EDT | Severe Thunderstorm Warning | GSP | Mitchell, Yancey | 53 min |
| Aug 20, 6:05 PM EDT | Special Weather Statement | GSP | Avery | 40 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.