Scattered thunderstorms developed over Northeast Georgia during the late afternoon. One storm produced small hail near Hartwell.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GSP wrote it up.
Scattered thunderstorms developed over Northeast Georgia during the late afternoon. One storm produced small hail near Hartwell.
The local office's own words before the first event, 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 the first event at Aug 20, 3:31 PM EST, 1 hour 9 minutes earlier.
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 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
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.
&&
HGPRELIMINARY 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.
&&
HGPRELIMINARY 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.
&&
HGSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
453 PM EDT WED AUG 20 2014
NCZ048-202145-
MADISON-
453 PM EDT WED AUG 20 2014
...A STRONG THUNDERSTORM WILL AFFECT MADISON COUNTY THROUGH 545 PM
EDT...
AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR HOT SPRINGS...OR 13 MILES NORTHWEST OF
MARSHALL...MOVING SOUTHEAST AT 20 MPH.
THIS STORM WILL IMPACT LOCATIONS NEAR...
HOT SPRINGS...
MARSHALL...
MARS HILL...
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 3604 8259 3597 8260 3596 8257 3598 8251
3595 8248 3591 8249 3590 8246 3579 8254
3571 8275 3584 8293 3593 8292 3595 8289
3595 8285 3593 8281 3601 8277 3607 8263
CDGSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
502 PM EDT WED AUG 20 2014
GAZ018-026-SCZ001-004-202200-
FRANKLIN-GREATER OCONEE-OCONEE MOUNTAINS-STEPHENS-
502 PM EDT WED AUG 20 2014
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN OCONEE...
NORTHEASTERN FRANKLIN AND STEPHENS COUNTIES THROUGH 600 PM EDT...
AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTHEAST OF TOCCOA...MOVING SOUTHEAST AT
15 MPH.
THIS STORM WILL IMPACT LOCATIONS NEAR...
TOCCOA...
EASTANOLEE...
LAKE HARTWELL...
MARTIN...
WHITWORTH...
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 3463 8339 3467 8337 3469 8334 3470 8335
3472 8335 3479 8325 3454 8293 3447 8300
3450 8305 3440 8310 3436 8315
CDGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
505 PM EDT WED AUG 20 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0338 PM TSTM WND DMG 2 NNW GASTONIA 35.28N 81.19W
08/20/2014 GASTON NC AMATEUR RADIO
TREE DOWN ON 3 VEHICLES. NO INJURIES.
&&
RWHThe Greer radar (KGSP), 102 km away, was scanning. The volume nearest the first event began at 21:41 UTC.
1 hail. Local standard time, as filed.
Co-op observer relayed public report of up to 3/4 inch hail along Lake Louise Rd. At least one other report of 3/4 inch hail was also received in the Toccoa area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2014Every state in 2014This day in weather historyWarnings in Georgia, August 2014
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 533893.