A thunderstorm in lower McDuffie County produced some nickel to quarter size hail and broke some large branches off of trees.
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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 CAE wrote it up.
A thunderstorm in lower McDuffie County produced some nickel to quarter size hail and broke some large branches off of trees.
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 Columbia, SC wrote its last area forecast discussion before the first event at Aug 20, 1:00 PM EST, 3 hours 48 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE COLUMBIA SC 200 PM EDT WED AUG 20 2014 .SYNOPSIS... DRIER AIR AND A BUILDING UPPER RIDGE JUST TO OUR WEST WILL REDUCE THUNDERSTORM CHANCES THROUGH FRIDAY...AND LEAD TO HOTTER HIGH TEMPERATURES. AN APPROACHING COLD FRONT AND INCREASING MOISTURE WILL INCREASE THE THUNDERSTORM CHANCE OVER THE WEEKEND. && .NEAR TERM /THROUGH TONIGHT/... EARLY AFTERNOON SATELLITE IMAGES SHOWED LIMITED CUMULUS DEVELOPMENT. MOISTURE OVER THE AREA WAS SHALLOW. THE EARLY AFTERNOON ANALYSIS HAD A WEAK SURFACE TROUGH. THE WATER VAPOR IMAGERY INDICATED A SHORTWAVE TROUGH APPROACHING IN THE NORTHWEST FLOW BUT MUCH OF THE LIFT ASSOCIATED WITH THIS FEATURE WAS NORTH OF THE FORECAST AREA. THE HIGH-RESOLUTION MODELS INDICATED JUST ISOLATED THUNDERSTORMS AND THESE WERE MAINLY CONFINED TO A FEW LOCATIONS IN THE UPPER SAVANNAH RIVER AREA CLOSER TO WHERE SATELLITE INDICATED MORE ENHANCED CUMULUS AND DEEPER MOISTURE. THE FORECAST OF JUST SLIGHT CHANCE POPS STILL APPEARS ON TRACK BASED ON SATELLITE AND RADAR TRENDS AND THE FORECAST OF CONTINUED SHALLOW MOISTURE AND LITTLE CONVERGENCE INTO THE WEAK SURFACE FEATURE. MODERATE TO STRONG INSTABILITY HAS DEVELOPED. EARLY AFTERNOON LI/S WERE -7 TO -8. DAMAGING WIND COULD POSSIBLY OCCUR WITH ANY THUNDERSTORMS. TEMPERATURES WILL PEAK IN THE MIDDLE 90S. THE THUNDERSTORM CHANCE SHOULD FURTHER DIMINISH OVERNIGHT WITH THE LOSS OF HEATING AND MID-LEVEL SHORTWAVE RIDGING. NOCTURNAL COOLING WITH DRY AIR ALOFT AND LIGHT WIND SHOULD HELP SUPPORT AREAS OF FOG TOWARD SUNRISE. THE TEMPERATURE GUIDANCE WAS CONSISTENT WITH LOWS IN THE LOWER AND MIDDLE 70S. && .SHORT TERM /THURSDAY THROUGH FRIDAY/... UPPER RIDGE WILL BUILD JUST TO OUR WEST. THIS AND A LOW LEVEL DOWNSLOPE FLOW WILL LEAD TO WARMING TEMPS. MODELS CONTINUE TO INDICATE MAX TEMPS NEAR 100 DEGREES MOST AREAS...AND CONTINUE TO INDICATES DEW POINTS MIXING DOWN INTO THE MID TO UPPER 60S ACROSS THE NORTHERN AND WESTERN COUNTIES TO NEAR 70 OR LOWER 70S ACROSS THE SOUTHEAST MIDLANDS. THIS KEEPS HEAT INDICES JUST BELOW OUR HEAT ADVISORY CRITERIA OF 110F. ONLY SLIGHT CHANCE OF SHOWERS/TSTMS EXPECTED DUE TO BUILDING RIDGE ALOFT...AND FAIRLY DRY LOW LEVEL AIR LEADING TO AND HIGH LEVELS OF FREE CONVECTION/HIGH CONVECTIVE TEMPS. && .LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... UPPER RIDGE TO OUR WEST WITH UPPER TROUGH AND CLOSED LOW TO OUR NE...PROVIDING A NW FLOW ALOFT FOR OUR FA. SOME TIMING UNCERTAINTIES WITH A BACK DOOR FRONT. MODELS TRENDING A LITTLE SLOWER WITH IT OF LATE...WITH POSSIBILITY THAT IT MAY NOT MAKE IT TO OUR FA UNTIL SATURDAY AFTERNOON OR EVENING...SLOWLY PUSHING SOUTH THROUGH SUNDAY. INCREASING POPS/THUNDER CHANCE ALONG AND SOUTH OF THE BOUNDARY...WITH COOLER TEMPS NORTH OF IT. FRONT TO PUSH TO OUR SOUTH EARLY NEXT WEEK...WITH SURFACE AND UPPER RIDGE OVER THE EASTERN SEABOARD. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... EXPECT MAINLY VFR CONDITIONS THROUGH THE PERIOD. THE LATEST ANALYSIS SHOWED SURFACE RIDGING TO OUR SOUTH WITH WEAK TROUGHING IN THE FORECAST AREA. STRONG HEATING PLUS SOME SUPPORT ASSOCIATED WITH THE SURFACE FEATURE AND A MID-LEVEL SHORTWAVE TROUGH COULD HELP CAUSE THUNDERSTORMS. HOWEVER...MOISTURE WAS SHALLOW AND CONVERGENCE INTO THE SURFACE FEATURE SHOULD REMAIN WEAK. EARLY AFTERNOON SATELLITE TRENDS INDICATED LIMITED CUMULUS DEVELOPMENT. MUCH OF THE LIFT ASSOCIATED WITH THE MID-LEVEL SHORTWAVE TROUGH WILL STAY NORTH OF THE AREA. EXPECT JUST ISOLATED THUNDERSTORM COVERAGE THIS AFTERNOON AND EVENING WITH THE CHANCE TOO LOW TO INCLUDE IN THE TERMINAL FORECASTS AT THIS TIME. THE ISOLATED COVERAGE WAS SUPPORTED BY THE HIGH RESOLUTION MODELS. MODERATE TO STRONG INSTABILITY HAS DEVELOPED. SURFACE-BASED LI/S WERE -7 TO -8 EARLY THIS AFTERNOON. THEREFORE...VERY STRONG WIND MAY OCCUR NEAR ANY THUNDERSTORMS. THE THUNDERSTORM CHANCE SHOULD FURTHER DIMINISH OVERNIGHT WITH THE LOSS OF HEATING AND MID-LEVEL SHORTWAVE RIDGING. NOCTURNAL COOLING WITH DRY AIR ALOFT AND LIGHT WIND SHOULD HELP SUPPORT AREAS OF FOG TOWARD SUNRISE. THE NAM AND GFS MOS HAS TRENDED MORE OPTIMISTIC WITH JUST MVFR FOG MAINLY AT THE RIVER VALLEY TERMINALS OF AGS AND DNL. PREVIOUS RUNS INDICATED IFR CONDITIONS. WE CONTINUED THE FORECAST OF A PERIOD OF IFR AT THE RIVER VALLEY TERMINALS AND MVFR ELSEWHERE. HEATING AND MIXING SHOULD DISSIPATE ANY FOG BEGINNING AROUND 13Z. THE PRESSURE GRADIENT WILL REMAIN WEAK THROUGH THE TAF PERIOD. GENERALLY LIGHT WIND WILL OCCUR. EXTENDED AVIATION OUTLOOK...MVFR OR IFR CONDITIONS POSSIBLE IN LATE NIGHT AND EARLY MORNING FOG THROUGH THE PERIOD. ISOLATED AFTERNOON AND EVENING THUNDERSTORMS MAY ALSO BRING RESTRICTIONS. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...NONE. GA...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 338 AM EDT WED AUG 20 2014 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-210738- AIKEN-BAMBERG-BARNWELL-BURKE-CALHOUN-CHESTERFIELD-CLARENDON-COLUMBIA- EDGEFIELD-FAIRFIELD-KERSHAW-LANCASTER-LEE-LEXINGTON-LINCOLN-MCCORMICK- MCDUFFIE-NEWBERRY-ORANGEBURG-RICHLAND-RICHMOND-SALUDA-SUMTER- 338 AM EDT WED AUG 20 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
523 PM EDT WED AUG 20 2014
GAZ063>065-077-202230-
BURKE-COLUMBIA-MCDUFFIE-RICHMOND-
523 PM EDT WED AUG 20 2014
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF RICHMOND...
MCDUFFIE...BURKE AND COLUMBIA COUNTIES THROUGH 630 PM EDT...
AT 517 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR DEARING...MOVING SOUTHEAST AT 20 MPH.
THUNDERSTORMS ARE CONTINUING TO DEVELOP IN THE ADVISED AREA.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
EVANS...FORT GORDON...GROVETOWN...HARLEM...HEPHZIBAH...MIDVILLE...
SARDIS...THOMSON AND WAYNESBORO...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
SMALL HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE WWW.FACEBOOK.COM/NWSCOLUMBIA AND EMAIL
CAEWX@NOAA.GOV TO RELAY SEVERE WEATHER REPORTS.
&&
LAT...LON 3362 8264 3366 8251 3360 8225 3337 8192
3332 8191 3333 8191 3331 8184 3325 8185
3322 8177 3314 8174 3304 8155 3291 8176
3294 8188 3291 8209 3281 8216 3282 8230
3324 8225 3331 8234 3335 8255 3361 8265
TIME...MOT...LOC 2121Z 314DEG 13KT 3339 8236
WRSThe Robins AFB radar (KJGX), 116 km away, was scanning. The volume nearest the first event began at 21:47 UTC.
1 hail. Local standard time, as filed.
McCorkle Nursery reported nickel to quarter size hail and large branches down on Goett Road.
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: 528741.