A slow moving frontal boundary pushing into an atmosphere filled with deep tropical moisture allowed numerous showers and thunderstorms to cause flash flooding problems across the area.
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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 CHS wrote it up.
A slow moving frontal boundary pushing into an atmosphere filled with deep tropical moisture allowed numerous showers and thunderstorms to cause flash flooding problems across 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 Charleston, SC wrote its last area forecast discussion before the first event at Aug 28, 6:32 AM EST, 59 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 732 AM EDT TUE AUG 28 2007 .SYNOPSIS... A WEAK FRONTAL BOUNDARY WILL LINGER NEAR THE NORTHERN FRINGES OF THE FCST AREA TODAY AND DISSIPATE BY WED. A WEAK LOW PRES SYSTEM WILL DEVELOP OFF THE NC COAST TODAY AND DRIFT S TONIGHT BUT REMAIN WELL OFF THE COAST THROUGH THU. THEN...A COLD FRONT WILL PUSH THROUGH THE REGION FRI INTO SAT...BEFORE DISSIPATING S OF THE REGION BY SUN. HIGH PRES MOVES BACK IN FOR THE START OF NEXT WEEK. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... LINE OF SHOWERS AND ISOLATED THUNDERSTORMS WILL SLOWLY SLIDE SOUTH THROUGH THE CWA TODAY. AGAIN WILL SEE HEAVY RAIN AS THE MAIN HAZARD AS PWATS REMAIN AROUND 2.25 INCHES AND THE STEERING FLOW REMAINS WEAK. HIGHS WILL GENERALLY TOP OUT AROUND 90 DEG AWAY FROM THE IMMEDIATE COAST...ALTHOUGH AS HAPPENED YESTERDAY...ANY LOCALES THAT SEE SIGNIFICANT CLOUD COVER WILL SEE HIGHS A BIT COOLER. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/... A WEAK AREA OF LOW PRES WILL DEVELOP OFF THE NC COAST THIS EVE AND SLOWLY DRIFT S THROUGH WED. DRIER AIR ON THE BACKSIDE OF THIS LOW WILL FILTER INTO THE REGION...SIGNIFICANTLY REDUCING OUR RAIN CHANCES...ESPECIALLY ACROSS OUR SC ZONES. LOWS TONIGHT WILL BE IN THE LOWER TO MID 70S AWAY FROM THE COAST. HIGHS WED WILL TOP OUT AROUND 90 DEG AGAIN...BUT SOME MID 90S ARE POSSIBLE WELL INLAND. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... MADE VERY FEW CHANGES TO THE SENSIBLE WEATHER FROM THE PREVIOUS PACKAGE AS THE TREND LOOKS SIMILAR. POPS LOOK LOWEST ON THURSDAY AND FRIDAY WITH BUBBLE HIGH MOVING IN...THEN POPS RAISING BACK TOWARDS CLIMO AS THE NEXT WEAK FRONT APPROACHES AND DEEP MOISTURE AGAIN INCREASES. TEMPS WITHIN A FEW DEGREES OF NORMAL THROUGH THE PERIOD. ONLY FLY IN THE OINTMENT IS THE TENDENCY OF MODELS NOW TO DEVELOP A WEAK LOW IN THE WESTERN ATLANTIC ON THE FRONT SAGGING THROUGH THE AREA WED NGT. BOTH GFS AND NAM KEEP THE SYSTEM FAR ENOUGH OFFSHORE AT THIS POINT TO HAVE MINIMAL EFFECT OVER LAND AREAS...AND WITH MID LEVEL FLOW OUT OF THE NORTH TO NORTHWEST...I THINK THAT SOLUTION IS REASONABLE. && .AVIATION /12Z TUESDAY THROUGH SATURDAY/... SHOWERS ALREADY AT CHS THIS MORNING CREATING MVFR CIGS AND VSBYS. THIS ACTIVITY SHOULD BREAK BY MID MORNING. THE ACTIVITY SHOULD INCREASE FURTHER SOUTH TOWARD SAV DURING THE DAY AS WEAK BOUNDARY SLIPS SOUTHWARD AND SOME HEATING HAS A CHANCE TO KICK IN. EXTENDED AVIATION OUTLOOK...VFR CONDS WILL PREVAIL THROUGH MUCH OF THE EXTENDED PERIOD...OUTSIDE OF SCT AFTN/EVE SHWRS/TSTMS AND PRE-DAWN SHALLOW GROUND FOG. && .MARINE... ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP ALONG THE LAND BREEZE THROUGH THE REMAINDER OF THE MORNING HOURS. MEANWHILE... A WEAK SFC TROF/BNDRY WILL LINGER JUST N OF THE WATERS THROUGH TODAY AND HAVE LITTLE TO NO SIGNIFICANT PRESSURE GRADIENTS ASSOCIATED WITH IT. ALSO...A WEAK AREA OF LOW PRES IS FORECAST TO DEVELOP OFF THE NC COAST TODAY AND DRIFT S THROUGH WED BUT REMAIN WELL OFFSHORE. THUS...EXPECT WINDS TO REMAIN BELOW HEADLINE CRITERIA THROUGH WED. SEAS WILL HOLD AROUND 2 FT WITHIN 20 NM AND 2-3 FT ACROSS THE 20-60 NM LEG OF THE GA WATERS. WEDNESDAY NIGHT THROUGH SATURDAY...AFTER SEASONABLY TAME WINDS AND SEAS THROUGH FRIDAY...WINDS AND SEAS ARE EXPECTED TO PICK UP IN THE OFFSHORE WATERS THIS WEEKEND AS A SURFACE HIGH BUILDS OFF THE MID ATLANTIC COAST AND A WEAK LOW SPINS IN THE WESTERN ATLANTIC. FOR NOW...FORECAST KEEPS WIND SPEEDS AND SEA HEIGHTS BELOW CRITERIA THAT WOULD REQUIRE HEADLINES...BUT IF THE LOW GETS A BIT STRONGER...WE MAY REACH INTO SCEC IN THE OFFSHORE WATERS BY LATER SUNDAY OR MONDAY. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. && ALSHEIMER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 414 AM EDT TUE AUG 28 2007 AMZ330-350-352-354-374-291000- CHARLESTON HARBOR- WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM- WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM- WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY- WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO 60 NM- 414 AM EDT TUE AUG 28 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .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. GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>051-291000- JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS- INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG- INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH- ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-BERKELEY-INLAND JASPER- BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER- 414 AM EDT TUE AUG 28 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. STRONG THUNDERSTORMS...A FEW THUNDERSTORMS MAY PRODUCE VERY HEAVY RAIN...FREQUENT CLOUD TO GROUND LIGHTNING AND WIND GUSTS EXCEEDING 40 MPH TODAY...ESPECIALLY DURING THE AFTERNOON AND EVENING HOURS. .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. RJB
The Charleston,SC radar (KCLX), 109 km away, was scanning. The volume nearest the first event began at 12:32 UTC.
3 flash flood. Local standard time, as filed.
Parts of the Berkeley County Country Club were reported to be completely submerged by water.
Parts of Carolina Nursery was reported to have been severely flooded. One car was reported to be submerged.
East bound lanes along Highway 52 near Dick Smith Chevrolet were reported to be completely submerged.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2007Every state in 2007This day in weather historyWarnings in South Carolina, August 2007
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: 52529, 52530, 52531.