Locally heavy rains produced some flash flooding in portions of the CSRA as nearly stationary thunderstorms lingered over the area.
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The episode as NWS CAE wrote it up.
Locally heavy rains produced some flash flooding in portions of the CSRA as nearly stationary thunderstorms lingered over the area.
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 7, 6:29 PM EST, 24 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE COLUMBIA SC 729 PM EDT TUE AUG 7 2012 .SYNOPSIS... A WEAK FRONTAL BOUNDARY STALLED OVER THE FOOTHILLS WILL REMAIN IN PLACE THROUGH WEDNESDAY. THE BOUNDARY WILL SLOWLY SLIDE TOWARD THE COAST ON THURSDAY AS AN UPPER LEVEL TROUGH MOVES INTO REGION ON FRIDAY. THESE FEATURES COMBINED WITH MOIST SOUTHERLY FLOW OVER THE REGION WILL RESULT IN SHOWERS AND THUNDERSTORMS INTO THE WEEKEND. && .NEAR TERM /THROUGH WEDNESDAY/... CONVECTION FOCUSING IN A LINE ACROSS AIKEN COUNTY SOUTHWEST INTO THE CSRA AT 23Z ASSOCIATED WITH STRONG LOW LEVEL CONVERGENCE. THESE STORMS ARE PRODUCING VERY HEAVY RAIN. MINOR FLOODING IS LIKELY. THERE IS POTENTIAL FOR FLASH FLOODING DUE TO TRAINING OF STORMS...ALTHOUGH LATEST RADAR TRENDS SUGGEST MOVEMENT SOUTHEAST. EXPECT THE CONVECTION TO LINGER INTO THE EVENING HOURS AS THE TROUGH WEST OF THE CWA CONTINUES TO SLOWLY MOVE EASTWARD AND ACROSS THE REGION BY WEDNESDAY MORNING. AT THE SURFACE...AN EXTREMELY WEAK SURFACE TROUGH ALONG WITH SOME SLIGHTLY COOLER AIR ALOFT WILL ALLOW FOR ENOUGH INSTABILITY OVERNIGHT FOR GOOD CHANCE/LIKELY EARLY TO CHANCE AFTER MIDNIGHT FOR SHOWERS AND ISOLATED THUNDERSTORMS WITH THE POSSIBILITY OF LOCALLY HEAVY RAIN. MODEL TIME SECTIONS SHOW PLENTY OF MOISTURE ACROSS THE AREA AND EXPECT MOSTLY CLOUDY/CLOUDY SKIES THROUGH TONIGHT. EXPECT TO ALSO SEE SOME LOW CLOUDS/LIGHT FOG ONCE AGAIN BY WEDNESDAY MORNING...SIMILAR TO THIS MORNING. AS FOR TEMPERATURES...GUIDANCE CONTINUES TO RUN SLIGHTLY BELOW ACTUAL TEMPERATURES AND WILL STAY NEAR/JUST ABOVE CONSENSUS FOR TEMPERATURES TONIGHT. && .SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/... THE COLD FRONTAL BOUNDARY TO OUR NORTH WILL SLIDE TOWARD THE COAST ON WEDNESDAY AND BECOME STATIONARY. UPPER LEVEL TROF BEGINS TO DEEPEN OVER THE EAST COAST SO WILL KEEP CHANCE POPS THROUGH THIS PERIOD. MAX TEMPS WILL BE BELOW NORMAL WEDNESDAY WITH HIGHS IN THE UPPER 80S AND NEAR NORMAL THURSDAY WITH HIGHS IN THE LOWER 90S. PRECIPITATBLE WATER VALUES WILL GRADUALLY DECREASE TO BELOW 2 THROUGH THE PERIOD. && .LONG TERM /FRIDAY THROUGH TUESDAY/... MODELS REMAIN IN VERY GOOD AGREEMENT THROUGH THE LONG TERM. UPPER LEVEL TROF WILL REMAIN ALONG THE EAST COAST WITH ANOTHER UPPER LEVEL SYSTEM AND COLD FRONT MOVING THROUGH THE PALMETTO STATE FRIDAY INTO SATURDAY MORNING. EXPECT A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS FRIDAY INTO EARLY SATURDAY WITH CHANCES DIMINISHING THROUGH THE WEEKEND INTO MONDAY. TEMPERATURES WILL BE NEAR NORMAL. WITH HIGHS 90 TO 95 AND LOWS IN THE LOW TO MID 70S. && .AVIATION /00Z WEDNESDAY THROUGH SUNDAY/... A BAND OF HEAVY SHRA/TSRA WILL AFFECT DNL/AGS VCNTY IN THE NEAR TERM. PREVIOUS SHRA/TSRA ACTIVITY IN THE CAE/CUB VCNTY HAS DISSIPATED. EXPECTING CONVECTION TO DISSIPATE LATER TONIGHT...THEN FOCUS WILL SHIFT TO POSSIBLE IFR CONDITIONS IN FOG/STRATUS LATE TON/EARLY WED MORN. GOOD CHANCE OF SHOWER AND THUNDERSTORM ACTIVITY WED AFTN/EVE. WILL HANDLE WITH VCSH AFT 18Z FOR NOW. EXTENDED AVIATION OUTLOOK...AN UNSETTLED WEATHER PATTERN WILL REMAIN OVER THE REGION THROUGH SATURDAY. THE CHANCE FOR SHOWERS AND STORMS WILL PERSIST EACH DAY. DURING THE OVERNIGHT AND EARLY MORNING HOURS...FOG/STRATUS POSSIBLE. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...NONE. GA...NONE. && 77
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 501 AM EDT TUE AUG 7 2012 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-080915- LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD- MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON- RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON- BAMBERG- 501 AM EDT TUE AUG 7 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. SHOWERS AND ISOLATED THUNDERSTORMS WILL MOVE THROUGH THE AREA TODAY AND TONIGHT. ALTHOUGH THE POTENTIAL FOR SEVERE THUNDERSTORMS IS LOW...HEAVY RAINFALL AND SLOW CELL MOVEMENT MAY RESULT IN LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The Columbia radar (KCAE), 99 km away, was scanning. The volume nearest the first event began at 23:51 UTC.
6 flash flood. Local standard time, as filed.
Sheriff reported 3 1/2 feet of wather covering Habersham Road in the Watervale subdivision.
Sheriff reported water inside an apartment complex on Stevens Creek Road.
Sheriff reported water inside a personal care home on Division Street with several roads closed.
Sheriff reported flooding on Bungalow and Peach Roads that were closed.
Sheriff reported a vehicle stalled in a flash flood in the 100 block of Wood street with a person in side, swift water rescue team had to save the person.
WRDW TV reported flash flooding in Harlem closing several roads including South Louisville Street in Harlem.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2012Every state in 2012This day in weather historyWarnings in Georgia, August 2012
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: 389330, 389335, 389339, 389343, 389347, 389358.