A weak area of low pressure in combination with seabreeze and weak mid-level shortwave energy in a highly unstable environment, resulted in scattered thunderstorm development across the area.
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 CHS wrote it up.
A weak area of low pressure in combination with seabreeze and weak mid-level shortwave energy in a highly unstable environment, resulted in scattered thunderstorm development 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 30, 2:39 PM EST, 1 hour 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 339 PM EDT THU AUG 30 2007 .SYNOPSIS... WEAK AREA OF SURFACE LOW PRESSURE IN CENTRAL SOUTH CAROLINA WILL DRIFT SOUTHWEST INTO THE NORTHEASTERN GULF OF MEXICO BY SATURDAY MORNING. A WEAKENING COLD FRONT OVER THE APPALACHIANS LOOKS TO MOVE THROUGH THE AREA SAT THEN STALL OUT AND LINGER S OF THE AREA THROUGH EARLY NEXT WEEK. SURFACE HIGH PRESSURE MOVING INTO THE NORTHEASTERN STATES THIS WEEKEND WILL SLIDE SOUTHWEST INTO THE AREA FOR THE BEGINNING OF NEXT WEEK. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... WEAK SFC LOW PRES OVER THE AREA THIS AFTN WILL GRADUALLY SHIFT SWWD TNGT...BUT WITH THE TROF LEFT OVER IN ITS WAKE AND THE DEVELOPING SEABREEZE...ISOLD TO SCT CONVECTION IS EXPECTED THROUGH THE REST OF THE AFTN. ISOLD SHWRS/TSTMS STARTING TO POP UP ON KCLX RADAR...ESP AWAY FROM THE COAST SO WILL KEEP SLGT/LOW CHC POPS GOING THROUGH THE LATE EVE HOURS. BOTH THE NAM AND WRF INDICATE AN UPR LVL SHTWV TO RIDE AROUND THE GOMEX RIDGE AND RUN THROUGH MAINLY THE WRN HALF OF THE CWFA LATE TNGT. MOISTURE WILL CONTINUE TO RUN DEEP AND ALONG WITH RESIDUAL INSTABILITY PLUS BOUNDARIES LEFT OVER FROM ANY CONVECTION THIS AFTN MAY BE ENOUGH TO SPARK A FEW SHWRS/TSTMS TNGT. WILL RUN WITH SLGT CHC POPS OVERNIGHT...MAINLY AWAY FROM THE COAST. EVEN WITH THE INCREASED CLOUD COVER OVERNIGHT...MAINLY HIGH LEVEL CLOUDS... DIMINISHING WINDS AND LLVL MOISTURE SHOULD COMBINE FOR AT LEAST PATCHY FOG DEVELOPMENT DURING THE EARLY MORNING HOURS FRIDAY. MIN TEMPS WILL AGAIN RUN MILD...MAINLY IN THE LOW TO MID 70S. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/... A WEAK CDFNT WILL COME OFF THE APPALACHIANS FRI MRNG AND MAKE SLOW PROGRESS TWD THE SE COAST...WHILE LOW H5 HEIGHTS NOSE INTO THE AREA FROM THE NE. THE DEEPER MOISTURE AND CONTINUED INSTABILITY AHEAD OF BOTH SYSTEMS WILL ALLOW FOR SCT SHWRS/TSTMS TO DEVELOP MAINLY TMRW AFTN BUT POSSIBLY EARLIER IN THE MORNING AS WELL. AM THINKING BEST CHCS FOR PRECIP RESIDE IN FAR SWRN PORTIONS OF THE CWFA WHERE THE NOSE OF THE LOWEST HEIGHTS WILL BE ALONG WITH CLOSER PROXIMITY TO THE DEPARTED LOW PRES CENTER FORMERLY OVER SC. THAT LOW PRES AREA SHOWS SIGNS OF DEEPENING OVER NRN FL ON THE GFS AND NAM...WHICH WOULD ALSO GIVE MORE CREDENCE TO HIGHER POPS. WILL RUN WITH HIGH CHC POPS N TRENDING TO LOW CHC POPS N FOR FRI AFTN. MAX TEMPS WILL BE A BIT COOLER THAN WHAT WAS SEEN FOR THU WITH THE INCREASED CLOUD COVER EXPECTED. MAX TEMPS WILL BE ARND 90 INLAND AND MID 80S CLOSER TO THE COAST. INCOMING FNTL BNDRY...ALBEIT WEAK...MAY STILL BE ENOUGH TO START A FEW SHWRS/TSTMS AFTER DARK TMRW EVE AND CONTINUE THROUGH THE OVERNIGHT HOURS. APPROACHING UPR LVL SHTWV IN CONCERT WITH THE FNT MAY HELP LIFT...SO WILL RUN WITH 20/30 POPS FOR THE OVERNIGHT HOURS. MINS WILL AGAIN HOLD IN THE LOW TO MID 70S. && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... BY EARLY SATURDAY MORNING...UPPER LOW WILL BE ESTABLISHED OVER THE SOUTHEAST AND THE NORTHWESTERN GULF COAST NEAR THE FL PANHANDLE. WITH A STALLED BOUNDARY AND SFC LOW NEAR THE SAME AREA...GFS IS DEVELOPING QUITE OF BIT OF CLOUDINESS AND PRECIP TO OUR SW. A GOOD DIFFLUENT AREA WILL DEVELOP AND KEEP HIGH CHANCE POP MAINLY OVER THE GA ZONES...WITH LOWER END CHANCE POPS FOR THE SC ZONES. MODERATE NE WINDS WILL PREVAIL OVER THE WEEKEND AS SURFACE HIGH BUILDS INTO THE CAROLINAS AND WEAK WEDGE PATTERN ESTABLISHES. MODELS DO KEEP SOME INSTABILITY OVER THE REGION SO WILL CARRY PRECIP FOR ALL THE CWA DESPITE THE SURFACE HIGH PRESSURE MOVING IN. UPPER RIDGE OVER THE ATLANTIC WILL MOVE WEST AND SLIDE UNDERNEATH THIS FEATURE LATE IN THE WEEKEND INTO EARLY NEXT WEEK. THIS WILL TAKE THE MID AND UPPER LEVEL MOISTURE FROM THE NORTHERN GULF AND PUSH IT OVER THE SOUTHEAST ATLANTIC COAST. THROUGH THE REST OF THE EXTENDED...LOOK FOR THE HIGHEST POP TO BE SOUTH AND SOUTHWEST WITH BETTER INSTABILITIES...PROXIMITY TO STATIONARY FRONT...DEEPER MOISTURE. WILL BE STICKING CLOSE TO GUIDANCE TEMPS. && .AVIATION /19Z THURSDAY THROUGH TUESDAY/... STARTING TO SLOWLY SEE SHWRS DEVELOPING ON THE KCLX RADAR. STILL VERY ISOLD IN COVERAGE...AND CONVECTION IS EXPECTED TO ONLY BE ISOLD TO SCT THROUGH THE REST OF THE DAYLIGHT HOURS. CONFIDENCE IS LOW AS TO EXACT TIMING/LOCATION OF CONVECTION WITH RESPECT TO THE TERMINALS SO WILL ONLY USE CB MENTION FOR EACH TERMINAL THIS AFTN. AN UPPER SHORTWAVE LOOKS TO MOVE THROUGH LATE TNGT INTO TMRW MRNG...BUT THE ATMOS MAY BE STABLE ENOUGH TO PREVENT MUCH PRECIP BUT AT LEAST BRING IN UPR LVL CLOUDS. HAVE MAINTAINED UPR LVL BKN DECKS...BUT EVEN WITH THOSE CLOUDS LIGHT WINDS AND LLVL MOISTURE MAY AGAIN BRING SHALLOW GROUND FOG. KSAV CLIMATOLOGICALLY IS FAVORED TO SEE IFR VSBYS WHILE KCHS HOLDS AT MVFR...SO HAVE BROUGHT IN 2SM BR AT KSAV WHILE HOLDING AT 4SM BR AT KCHS. ANY REMAINING FOG SHOULD BURN OFF SHORTLY AFTER SUNRISE TMRW AND ALLOW DIURNAL CU FORMATION AGAIN. EXTENDED AVIATION OUTLOOK...THE CHANCES OF MVFR CEILINGS AND VSBYS WILL INCREASE THROUGH THE WEEKEND INTO EARLY NEXT WEEK AS PRECIP CHANCES INCREASE MAINLY ACROSS GA AND THE SAVANNAH AREA. && .MARINE... DISSIPATING LOW PRES AREA A FEW HUNDRED MILES OFFSHORE IS KEEPING WIND DIRECTIONS FROM THE N AND E AND THIS SHOULD CONTINUE THROUGH THE OVERNIGHT HOURS. THERE IS NEARLY NO TIGHTENED PRES GRAD OVER THE WATERS...THUS SPEEDS LOOK TO REMAIN AOB 10 KT. THE FETCH IS NOT THAT IMPRESSIVE EITHER...ALLOWING SEAS TO REMAIN AOB 3 FT. THESE CONDITIONS WILL GENERALLY REMAIN THROUGH TMRW NIGHT... KEEPING FAIRLY TRANQUIL CONDS IN PLACE. THE MODELS CONTINUE TO SHOW A MODERATE E AND NE WIND OVER THE EXTENDED PERIOD AS HIGH PRESSURE TRIES TO WEDGE DOWN THE COAST. HAVE BROUGHT SOME SLIGHTLY HIGHER SEAS CLOSER TO THE COAST WITH THE GOOD ONSHORE FETCH. MUCH WILL DEPEND ON THE TIGHTENING OF THE GRADIENT AND THE POSITIONING OF THE WEAK LOW PRESSURE OVER THE SOUTHEAST. NOT CONFIDENT ENOUGH TO INCLUDE ANY SMALL CRAFT CONDITIONS RIGHT NOW...BUT WILL HAVE TO WATCH CLOSELY AS MANY TIMES THE MODELS TEND TO UNDERESTIMATE THE STRENGTH OF THE NE WIND. RIP CURRENTS...MODERATE NE TO E WINDS COMBINED WITH BUILDING SWELLS WILL RESULT IN AN ENHANCED RIP CURRENT RISK THIS HOLIDAY WEEKEND. && .TIDES/COASTAL FLOODING... TIDE LEVELS HAVE CONTINUED TO RUN SLIGHTLY ABOVE PREDICTED LEVELS THE PAST FEW TIDAL CYCLES. WITH ASTRONOMICAL HIGH TIDES CONTINUING OVER THE NEXT FEW DAYS AND A MOSTLY ONSHORE FLOW...WE WILL NEED TO CONTINUE TO MONITOR FOR POSSIBLE SHALLOW COASTAL FLOODING ALONG THE COASTS WITH THE HIGH TIDES. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. && JPC/PY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 414 AM EDT THU AUG 30 2007 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>051-310815- 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 THU AUG 30 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 UP TO 50 MPH IN PARTS OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA THIS AFTERNOON AND THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. RIP CURRENTS...THERE WILL BE AN ENHANCED RIP CURRENT RISK LATE THIS WEEK INTO EARLY NEXT WEEK DUE TO PERSISTENT ONSHORE WINDS AND INCREASING SWELLS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ330-350-352-354-374-310815- 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 THU AUG 30 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...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 415 PM EDT THU AUG 30 2007 SCZ045-302100- BERKELEY- 415 PM EDT THU AUG 30 2007 ...STRONG THUNDERSTORMS WILL IMPACT BERKELEY COUNTY THROUGH 500 PM EDT... AT 411 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING GUSTY WINDS OF 35 TO 45 MPH. THIS STORM WAS LOCATED NEAR WADBOO...OR ABOUT 7 MILES NORTHEAST OF MONCKS CORNER...MOVING SOUTHWEST AT 5 MPH. AREAS IN AND AROUND MONCKS CORNER AND PINOPOLIS WILL BE IMPACTED THROUGH 500 PM EDT. FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS. IF INDOORS...STAY AWAY FROM WINDOWS AND DOORS. AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 442 PM EDT THU AUG 30 2007 SCZ043-302115- INLAND COLLETON- 442 PM EDT THU AUG 30 2007 ...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL COLLETON COUNTY THROUGH 515 PM EDT... AT 440 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING GUSTY WINDS OF 35 TO 45 MPH. THIS STORM WAS LOCATED NEAR CANADY LANDING...OR ABOUT 17 MILES SOUTHEAST OF WALTERBORO. THIS STORM WAS NEARLY STATIONARY. EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED BUILDING.
The Charleston,SC radar (KCLX), 111 km away, was scanning. The volume nearest the first event began at 20:55 UTC.
1 thunderstorm wind, 1 hail, 1 lightning. Local standard time, as filed.
One tree was reported down on Highway 52 three miles south of Moncks Corner.
Penny size hail was reported in Carnes Crossroad.
A Summerville man was struck by lightning while walking back from his mailbox. The man said that it felt like someone had whupped him, but didn't remember getting struck by lightning. Other than feeling sore, everything checked out fine.
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: 52533, 52532, 52535.