Numerous boundaries in combination with sea breeze and a highly unstable environment resulted in scattered shower and 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.
Numerous boundaries in combination with sea breeze and a highly unstable environment resulted in scattered shower and 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 Jul 29, 3:11 PM EST, 3 hours 28 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 411 PM EDT SUN JUL 29 2007 .SYNOPSIS... A WEAK SURFACE TROUGH WILL REMAIN IN PLACE OVER THE REGION TONIGHT AND MONDAY. THEN...THE TROUGH WILL SETTLE SOUTH AS A COOL FRONT TUESDAY...STALLING OVER OR JUST SOUTH OF THE AREA BY MIDWEEK...THEN DISSIPATING BY LATE WEEK. ATLANTIC HIGH PRESSURE WILL THEN BUILD OVER THE REGION NEXT WEEKEND. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... SUNDAY AFTERNOON...THUNDERSTORMS WERE INCREASING IN COVERAGE WHERE SKIES HAD THINNED FOR SUNSHINE...S AND W OF THE FORECAST AREA. CLOUDS HAD THINNED ACROSS S/W COUNTIES OF THE FORECAST AREA... ALLOWING DECENT SURFACE HEATING WITHIN AN ENVIRONMENT FEATURING DEWPOINTS IN THE MID TO UPPER 70S. STILL EXPECT SBCAPES TO INCREASE INTO THE 3500-4000 J/KG RANGE S/W OF A WEAK SURFACE BOUNDARY THAT REMAINED IN PLACE ACROSS CENTRAL COUNTIES OF THE FORECAST AREA. CONVERGENCE ALONG THIS BOUNDARY...THE DEVELOPING SEA BREEZE BOUNDARY AND OUTFLOW FROM THUNDERSTORMS JUST S/SW OF THE ALTAMAHA RIVER SHOULD SUPPORT SCATTERED TO NUMEROUS THUNDERSTORMS ACROSS THE S/W COUNTIES OF THE FORECAST AREA THIS AFTERNOON/EVENING...THUS CONTINUED LIKELY POPS THERE UNTIL 0Z. THE THREAT FOR ISOLATED DAMAGING WIND GUSTS AND HAIL WILL PERSIST ACROSS S/W COUNTIES INTO EARLY EVENING. FARTHER NORTH...MORE PERSISTENT CLOUD COVER HAD LIMITED HEATING/ DESTABILIZATION...LIMITING PRECIPITATION TO SCATTERED SHOWERS ACROSS PARTS OF CHARLESTON/DORCHESTER/BERKELEY COUNTIES. THINNING CLOUDS HERE SHOULD ALSO SUPPORT DESTABILIZATION... BUT CAPES MAY REMAIN LIMITED TO THE 1500-2500 J/KG RANGE... REDUCING THE THREAT FOR SEVERE WEATHER. CONTINUED CHANCE POPS ACROSS THE NORTH INTO THIS EVENING. CONTINUED CHANCE POPS ALL AREAS WELL INTO TONIGHT...AS UPSTREAM CONVECTION MAY ADVANCE INTO THE REGION FROM THE W/NW. HOWEVER...IF UPSTREAM CONVECTION DIMINISHES WITH DIURNAL STABILIZATION THIS EVENING...THE EVENING SHIFT MAY OPT TO LOWER POPS OVERNIGHT. && .SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/... AFTER A LULL IN PRECIP LATE TONIGHT/EARLY MONDAY...PRECIPITATION COVERAGE SHOULD INCREASE BY MIDDAY. A SHORTWAVE WILL PUSH INTO THE REGION FROM THE NW DURING THE AFTERNOON. SYNOPTIC ASCENT ASSOCIATED WITH THIS FEATURE WILL OVERSPREAD AN ENVIRONMENT FEATURING AT LEAST MODERATE INSTABILITY. THIS SHORTWAVE MAY SUPPORT WEAK SURFACE CYCLOGENESIS OVER OR CLOSE TO NORTHERN COUNTIES...AND THE RESULTING WAVE WILL PUSH THE SYNOPTIC SURFACE TROUGH SOUTH AS A COOL FRONT. THIS SCENARIO SHOULD SUPPORT AT LEAST NUMEROUS SHOWERS/THUNDERSTORMS BY AFTERNOON...THUS CONTINUED ONGOING LIKELY POPS. TIMING/LOCATION OF CONVECTIVE INITIATION REMAINS UNCLEAR WITHIN A COMPLEX MESOSCALE ENVIRONMENT...FEATURING A SEA BREEZE BOUNDARY THAT WILL STRUGGLE TO PUSH INLAND...RESIDUAL OUTFLOW BOUNDARIES AND PERHAPS EVEN DIFFERENTIAL HEATING BOUNDARIES DEPENDANT ON CLOUD COVER. FURTHER...THE SEVERE THREAT WILL DEPEND GREATLY ON CLOUD COVER...WITH SUFFICIENT INSOLATION SBCAPES COULD PUSH INTO THE 3000-4000 J/KG RANGE...SUPPORTING A DECENT POTENTIAL FOR SEVERE WEATHER DURING THE AFTERNOON/EARLY EVENING. HOWEVER...IF CLOUD COVER REMAINS EXTENSIVE...THE PRIMARY THREATS WITH THUNDERSTORMS WILL BE LOCALLY EXCESSIVE RAINFALL AND FREQUENT LIGHTNING. SHOWERS/THUNDERSTORMS WILL THEN PERSIST INTO MONDAY NIGHT...BEFORE DIMINISHING IN THE WAKE OF THE SHORTWAVE/ PER DIURNAL TRENDS OVERNIGHT. && .LONG TERM /TUESDAY THROUGH SUNDAY/... THE GFS INDICATES A FRONTAL BOUNDARY WILL PUSH SOUTH ACROSS THE AREA THROUGH MID WEEK. THE BOUNDARY WILL THEN STALL OVER THE AREA THROUGH FRIDAY AS HIGH PRESSURE SLOWLY BUILDS INTO THE AREA FROM THE NORTHWEST FOR THE WEEKEND. TEMPS SHOULD REMAIN IN THE UPPER 80S TO LOWER 90S INLAND TO MID 80S ALONG THE COAST. THIS IS DUE TO THE PRESENCE OF CLOUD COVER AND THE ABOVE NORMAL CHANCE OF SHOWERS. && .AVIATION /19Z SUNDAY THROUGH FRIDAY/... MOST NUMEROUS SHOWERS/THUNDERSTORMS SHOULD OCCUR ACROSS SE GA THIS AFTERNOON/EVENING...THUS ADDED A TEMPO GROUP FOR THUNDERSTORMS AT KSAV DURING THE 20-00Z TIME FRAME. FOR NOW...THUNDERSTORMS IN THE VICINITY OF KCHS WILL SUFFICE. WILL AMEND AS NEAR TERM CONVECTIVE TRENDS BECOME EVIDENT. WITH LIGHT WNW FLOW ACROSS THE AREA TONIGHT...ADDITIONAL CONVECTION IN UPSTATE SC AND CENTRAL GA COULD MOVE IN THROUGH THE NIGHT...AND LATER FORECAST ADJUSTMENTS MAY BE REQUIRED TO ADDRESS THIS POTENTIAL LATE ROUND OF CONVECTION. CONCERN CONTINUES REGARDING MVFR CONDITIONS IN FOG/STRATUS OVERNIGHT...ESPECIALLY WHERE RAIN FALLS. HOWEVER...THE MID/HIGH LEVEL CLOUDINESS MAY REMAIN TOO EXTENSIVE TO ALLOW SIGNIFICANT FOG/STRATUS DEVELOPMENT. THEN...EXPECT NUMEROUS THUNDERSTORMS IN THE REGION MONDAY...BUT MAINLY AFTER 18Z. FOR NOW...INDICATED THUNDER IN THE VICINITY OF BOTH SITES STARTING AT 16Z. EXTENDED AVIATION OUTLOOK...WE WILL EXPERIENCE AN OCNL PERIOD OF AT LEAST MVFR CONDITIONS IN AFTN/EVE TSTMS AND PERHAPS IN LIGHT FOG DURING LATE NIGHT/EARLY MORNING PERIODS THROUGHOUT THE WEEK. OTHERWISE CONDITIONS WILL BE VFR. && .MARINE... THE UNCERTAIN POSITION OF THE SURFACE TROUGH...PER 12Z GFS/NAM DISAGREEMENT...WILL PROVIDE TRICKY WIND FORECASTS THROUGH MONDAY. S/E OF THE BOUNDARY...SW WINDS MAY AGAIN SURGE FOR A PERIOD TONIGHT...WILL NEED TO MONITOR FOR POTENTIAL OF SCSEC CONDITIONS ACROSS THE OUTER GA WATERS. THEN...THUNDERSTORMS MONDAY AFTERNOON/EVENING COULD PRODUCE STRONG WIND GUSTS. TIMING OF COOL FROPA MONDAY NIGHT REMAINS UNCERTAIN...BUT WINDS/SEAS SHOULD REMAIN BELOW HEADLINE CRITERIA. THE WINDS AND SEAS ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA THROUGH THE WEEK. SLIGHT SURGES ARE POSSIBLE DUE TO DIURNAL EFFECTS ALONG WITH THE SHOWER/THUNDERSTORM POTENTIAL ACROSS THE COASTAL WATERS FOR THE REMAINDER OF THE WEEK. SEAS WILL GENERALLY REMAIN 2 TO 4 FEET WITH HIGHER SEAS IN/NEAR THUNDERSTORMS. RIP CURRENTS...OBSERVATIONS CONCUR THE SWELLS REMAINING AROUND 2 FT EVERY 9-10 SECONDS...BUT DUE TO LACK OF RIP CURRENT REPORTS TODAY AND THE LOCAL WORKSHEET PARAMETERS ARE NOT INDICATING ANYTHING HIGHER THAN LOW RISK. THEREFORE...WILL MAINTAIN LOW RISK FOR TOMORROW. && .TIDES/COASTAL FLOODING... WILL MONITOR ASTRONOMICAL HIGH TIDES THIS EVENING THROUGH TUESDAY EVENING. IF HEAVY RAINS COINCIDE WITH THE TIMING OF THE EVENING HIGH TIDE...LOCAL FLOODING MAY OCCUR IN COASTAL COUNTIES. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. && SPR/REV
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHARLESTON SC 427 PM EDT SUN JUL 29 2007 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>051-301000- 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- 427 PM EDT SUN JUL 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. STRONG/SEVERE THUNDERSTORMS...ISOLATED THUNDERSTORMS MAY PRODUCE DAMAGING WIND GUSTS TO 60 MPH AND HAIL AT LEAST THE SIZE OF PENNIES UNTIL MIDNIGHT...ESPECIALLY WITHIN COUNTIES ALONG AND SOUTH OF THE SAVANNAH RIVER. ALSO...SOME THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN...POSSIBLY RESULTING IN LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. STRONG/SEVERE THUNDERSTORMS...NUMEROUS THUNDERSTORMS WILL AFFECT THE AREA MONDAY. A FEW OF THESE STORMS WILL BECOME STRONG...WITH GUSTY WINDS AND FREQUENT LIGHTNING STRIKES. ALSO...ISOLATED STORMS MAY BECOME SEVERE...WITH DAMAGING WINDS AND LARGE HAIL. IF SUNSHINE ALLOWS SUFFICIENT WARMING BEFORE THUNDERSTORMS DEVELOP...THE THREAT FOR SEVERE WEATHER WILL INCREASE. IN ADDITION...SOME THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN...POSSIBLY RESULTING IN LOCALIZED FLOODING. THERE WILL BE LESS COVERAGE OF THUNDERSTORMS TUESDAY...BUT A FEW OF THE STORMS STILL COULD BECOME STRONG OR SEVERE...ESPECIALLY ACROSS SOUTHEAST GEORGIA. GUSTY WINDS...LIGHTNING STRIKES...SMALL HAIL AND HEAVY RAINS ARE POSSIBLE IN THESE THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AMZ330-350-352-354-374-301000- 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- 427 PM EDT SUN JUL 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. STRONG THUNDERSTORMS...ISOLATED THUNDERSTORMS TODAY INTO TONIGHT MAY PRODUCE GUSTY WINDS...FREQUENT LIGHTNING STRIKES...VERY HEAVY RAINS REDUCING VISIBILITIES UNDER 1/2 MILE AND WATERSPOUTS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. STRONG THUNDERSTORMS...ISOLATED THUNDERSTORMS MONDAY AND TUESDAY MAY PRODUCE GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND VERY HEAVY RAINS REDUCING VISIBILITIES UNDER 1/2 MILE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
139 PM EDT SUN JUL 29 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0142 PM TSTM WND DMG 2 NNE BLITCHTON 32.22N 81.43W
07/28/2007 EFFINGHAM GA PUBLIC
QUARTER SIZE HAIL REPORTED.
&&
JRJPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHARLESTON SC
142 PM EDT SUN JUL 29 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0142 PM HAIL 2 NNE BLITCHTON 32.22N 81.43W
07/28/2007 E1.00 INCH EFFINGHAM GA PUBLIC
QUARTER SIZE HAIL REPORTED.
&&
JRJSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 603 PM EDT SUN JUL 29 2007 GAZ137-292245- LONG- 603 PM EDT SUN JUL 29 2007 ...STRONG THUNDERSTORMS WILL IMPACT LONG COUNTY THROUGH 645 PM EDT... AT 603 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA SIZE HAIL...AND GUSTY WINDS OF 35 TO 45 MPH. THIS STORM WAS LOCATED NEAR LUDOWICI. THIS STORM WAS NEARLY STATIONARY. AREAS IN AND AROUND LUDOWICI WILL BE IMPACTED THROUGH 645 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED BUILDING. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS. PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 IF YOU OBSERVE SEVERE WEATHER.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 658 PM EDT SUN JUL 29 2007 GAZ114-292345- TATTNALL- 658 PM EDT SUN JUL 29 2007 ...STRONG THUNDERSTORMS WILL IMPACT TATTNALL COUNTY THROUGH 745 PM EDT... AT 658 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING 1/2 INCH HAIL...AND GUSTY WINDS OF 35 TO 45 MPH. THIS STORM WAS LOCATED NEAR LYNN...OR ABOUT 12 MILES SOUTH OF CLAXTON...MOVING NORTHEAST AT 10 MPH. AREAS IN AND AROUND GLENNVILLE...MENDES AND MIDWAY WILL BE IMPACTED THROUGH 745 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED BUILDING. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS. PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 IF YOU OBSERVE SEVERE WEATHER.
The Charleston,SC radar (KCLX), 119 km away, was scanning. The volume nearest the first event began at 23:39 UTC.
3 thunderstorm wind. Local standard time, as filed.
Large tree limbs were reported down in the town of Reidsville.
Large tree limbs were reported down off of Metter Highway 129 N.
Large tree limbs were reported down on powerlines near the intersection of Interstate 16 and 301.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2007Every state in 2007This day in weather historyWarnings in Georgia, July 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: 47950, 47951, 47952.