Strong surface heating along with precipitable water values around 2 inches and a weak wind field favored the development of slow moving thunderstorms with heavy rain over Southeast Georgia.
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.
Strong surface heating along with precipitable water values around 2 inches and a weak wind field favored the development of slow moving thunderstorms with heavy rain over Southeast Georgia.
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 Jun 29, 2:57 PM EST, 3 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 357 PM EDT WED JUN 29 2011 .SYNOPSIS... A WEAK COLD FRONT WILL MOVE INTO THE AREA TONIGHT...THEN STALL AND GRADUALLY DISSIPATE OVER THE AREA ON THURSDAY...AS WEAK HIGH PRESSURE BUILDS IN FROM THE NORTH. ATLANTIC HIGH PRESSURE WILL THEN BUILD OVER THE REGION THIS WEEKEND INTO EARLY NEXT WEEK. && .NEAR TERM /UNTIL 6 AM THURSDAY MORNING/... CONVECTIVE TEMPERATURE WAS REACHED AROUND 2 PM THIS AFTERNOON...AND CONVECTION FIRED UP ACCORDINGLY. MAIN THREAT THROUGH THE EVENING HOURS WILL BE LOCALLY HEAVY RAIN AS CELLS MOVE SLOWLY. THERE STILL COULD BE AN ISOLATED WET MICROBURST...BUT WIDESPREAD SEVERE WEATHER IS NOT EXPECTED. THE ACTIVITY SHOULD GRADUALLY MOVE SOUTHWARD AND SLOWLY DISSIPATE AFTER SUNSET...ALTHOUGH THERE STILL COULD BE SOME CONVECTION IN THE FAR SOUTHERN ZONES UNTIL MIDNIGHT. CHANCES LOOK PRETTY SLIM OVERNIGHT. THE OTHER ISSUE TO CONSIDER IS FOG. NORMALLY I WOULD THINK THAT FOG WOULD BE TOUGH TO COME BY WITH DEW POINTS IN THE 70S...BUT AN EXTENDED PERIOD OF LIGHT WINDS OVER THE INTERIOR...ALONG WITH WET GROUND IN MANY PLACES FROM THIS EVENINGS RAIN...COULD CREATE SOME ISSUES HERE AND THERE. STILL...I DONT THINK IT WILL BE WIDESPREAD ENOUGH TO MENTION IN THE ZONES. && .SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY/... A STATIONARY FRONT WILL GRADUALLY DISSIPATE OVER THE FORECAST AREA THURSDAY...WITH WEAK HIGH PRESSURE SETTING UP TO THE NORTH. A BAND OF DEEP MOISTURE ASSOCIATED WITH A DEPARTING SHORTWAVE WILL CONTINUE TO SHIFT SOUTHEAST OF THE AREA ON THURSDAY...AND MODEL SOUNDINGS INDICATE PWAT VALUES DECREASING TO 1.5 INCHES ACCORDINGLY. EXPECT LESS SHOWER/THUNDERSTORM COVERAGE THURSDAY AFTERNOON...WITH CONVECTION MAINLY DRIVEN BY MOISTURE CONVERGENCE ALONG THE SEABREEZE AND DISSIPATING SYNOPTIC BOUNDARY. WILL MAINTAIN JUST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AFTERNOON AND EVENING GENERALLY ALONG AND JUST INLAND OF THE SEABREEZE. THE AXIS OF A WEAK UPPER TROUGH WILL MOVE OFF THE COAST ON FRIDAY...WHILE A LIGHT PRESSURE PATTERN AT THE SURFACE PREVAILS. BOTH THE 12Z GFS AND 12Z NAM SOLUTIONS DEPICT AT LEAST ISOLATED SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS INLAND ZONES FRIDAY AFTERNOON...LIKELY A RESULT OF WEAK SHORTWAVE ENERGY TRACKING ALONG THE EASTERN PERIPHERY OF AN UPPER RIDGE IN THE OHIO AND TENNESSEE VALLEYS. MODEL SOLUTIONS HINT THAT ANOTHER WEAK SURFACE BOUNDARY COULD DEVELOP UPSTREAM...PROVIDING AN ADDITIONAL FOCUS FOR MOISTURE CONVERGENCE WITH THE SEABREEZE BY LATE FRIDAY AFTERNOON. HAVE ADDED JUST A SLIGHT CHANCE FOR CONVECTION AWAY FROM THE COAST DURING THE FAVORED AFTERNOON AND EARLY EVENING HOURS. THE UPPER RIDGE TO THE WEST WILL STEADILY BUILD TOWARD THE COAST OVER THE WEEKEND. RISING HEIGHTS ALOFT AND INCREASING SUBSIDENCE WILL LIKELY SUPPRESS CONVECTIVE DEVELOPMENT ON SATURDAY...AND WILL THUS CONTINUE WITH A DRY FORECAST AT THIS TIME. EXPECT A STEADY WARMING TREND THURSDAY THROUGH SATURDAY...AS A RESULT OF GRADUALLY BUILDING HIGH PRESSURE ALOFT. HIGH TEMPERATURES ON THURSDAY WILL REACH THE LOWER 90S AWAY FROM THE LOCALLY COOLER COAST...WHILE TEMPERATURES COULD PEAK IN THE MID TO UPPER 90S INLAND BY SATURDAY. MILD LOW TEMPERATURES WILL RANGE FROM AROUND 69 DEGREES INLAND TO THE MID 70S ALONG THE COAST. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... A DRY FORECAST WILL PERSIST THROUGH SUNDAY...AS ATLANTIC HIGH PRESSURE BUILDS OVER THE SOUTHEAST. TEMPS WILL GRADUALLY WARM INTO THE LOW/MID 90S SUNDAY AND REMAIN A FEW DEGREES ABOVE NORMAL THROUGH MIDWEEK...AS MID LVL RIDGING BECOMES CENTERED OVER THE MID ATLANTIC AND SOUTHEASTERN STATES AND ATLANTIC HIGH PRESSURE CONTINUES TO DOMINATE OVER THE FORECAST AREA. OVERNIGHT LOWS WILL BE THE LOW 70S...WITH MID/UPPER 70S ALONG THE IMMEDIATE COAST. SLIGHT CHANCE POPS WILL GRADUALLY INCREASE MONDAY THROUGH WEDNESDAY AS LIGHT ONSHORE FLOW RETURNS BOUNDARY LAYER MOISTURE OVER THE REGION AND LEE SIDE TROUGHING IS ENHANCED BY ANOTHER WEAK SFC TROUGH SHIFTING SLOWLY THROUGH THE NORTHEAST. && .AVIATION /20Z WEDNESDAY THROUGH MONDAY/... ISOLATED CONVECTION MAY IMPACT THE TERMINALS IN THE PERIOD BETWEEN 21Z AND 00Z...BUT I AM NOT CONFIDENT ENOUGH AT THIS POINT TO LOCK IN A SPECIFIC TIME OR VSBY/CIG...SO I WILL JUST LEAVE IN A CB FOR NOW. IT LOOKS LIKE THE CHANCE WILL BE A LITTLE BETTER IN SAV THAN CHS. OVERNIGHT...THERE STILL SEEMS TO BE A SMALL CHANCE OF SOME MVFR WHEN THE WINDS CALM DOWN...ESPECIALLY IF THERE IS RAIN AT THE SITES THIS AFTERNOON OR EVENING. THERE ARE TOO MANY CONDITIONS AT THIS TIME TO BRING THE VSBY ANY LOWER THAN 6 MILES...HOWEVER. LATER SHIFTS WILL RE-EVALUATE. EXTENDED AVIATION OUTLOOK...MAINLY VFR && .MARINE... WINDS AND SEAS HAVE CERTAINLY COME DOWN FOR EARLY THIS MORNING...BASED MAINLY ON TYPICAL SUMMER DIURNAL TRENDS. I DO EXPECT ANOTHER SURGE OVER THE WATERS THIS EVENING INTO THE OVERNIGHT HOURS...BUT SURFACE PRESSURE GRADIENT WILL NOT BE AS STRONG AS LAST NIGHT...SO I HAVE KEPT WINDS A TOUCH LOWER. NO SCA EXPECTED. FAIRLY BENIGN MARINE CONDITIONS WILL PERSIST THURSDAY THROUGH EARLY NEXT WEEK...AS ATLANTIC HIGH PRESSURE BUILDS OVER THE WESTERN ATLANTIC. WINDS AND SEAS ARE EXPECTED TO REMAIN WELL BELOW SMALL CRAFT ADVISORY CRITERIA...WITH SEAS GENERALLY BETWEEN 2 TO 3 FT AND WINDS AT OR BELOW 15 KT. HIGHEST WINDS WILL REMAIN ALONG THE COAST DURING AFTERNOON SEABREEZE CIRCULATIONS THIS WEEKEND. SOUTH/SOUTHWEST WINDS MAY APPROACH 15 TO 20 KNOTS FOR WATERS BEYOND 20 NM DURING NOCTURNAL SURGES EARLY NEXT WEEK. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 412 AM EDT WED JUN 29 2011 AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040- 042>045-047>052-300815- 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-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-INLAND BERKELEY- INLAND JASPER-BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER- TIDAL BERKELEY- 412 AM EDT WED JUN 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .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 EXPECTED AT THIS TIME. 33
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
406 PM EDT WED JUN 29 2011
SCZ048-051-292045-
BEAUFORT-COASTAL JASPER-
406 PM EDT WED JUN 29 2011
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF JASPER AND BEAUFORT
COUNTIES THROUGH 445 PM EDT...
AT 403 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR CLARENDON...MOVING SOUTHEAST AT 10 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BEAUFORT MARINE CORPS AIR STATION...BURTON...CLARENDON...DALE...
GARDENS CORNER...LAUREL BAY...LEMON ISLAND AND SHELDON...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
STRONG WINDS OF 45 TO 55 MPH...
DIME SIZE HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.
&&
LAT...LON 3235 8081 3251 8084 3252 8084 3252 8085
3253 8085 3254 8084 3256 8084 3260 8083
3261 8085 3265 8080 3249 8060
TIME...MOT...LOC 2006Z 320DEG 7KT 3252 8081SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
418 PM EDT WED JUN 29 2011
GAZ140-141-292045-
COASTAL MCINTOSH-INLAND MCINTOSH-
418 PM EDT WED JUN 29 2011
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF MCINTOSH COUNTY
THROUGH 445 PM EDT...
AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR VALONA...MOVING SOUTHEAST AT 5 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BLACKBEARD ISLAND...CARNIGAN...COX...CRESCENT...DARIEN...EULONIA...
MERIDIAN...PINE HARBOR...RIDGEVILLE...SAPELO ISLAND...SHELLMAN
BLUFF...TOWNSEND...VALONA AND WOLF ISLAND...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
LOCALLY HEAVY RAIN IN EXCESS OF 2 INCHES PER HOUR...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY
FLOOD DITCHES AND LOW-LYING AREAS. REDUCE VEHICLE SPEED TO LOWER THE
RISK OF HYDROPLANING. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE
ROAD. SEEK AN ALTERNATE ROUTE.
BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.
&&
LAT...LON 3131 8136 3131 8139 3130 8139 3134 8149
3151 8163 3165 8145 3154 8117 3147 8119
3140 8125 3137 8124 3137 8127 3134 8127
3131 8125 3129 8129
TIME...MOT...LOC 2018Z 314DEG 2KT 3145 8133SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
507 PM EDT WED JUN 29 2011
SCZ047-048-051-292145-
BEAUFORT-COASTAL JASPER-INLAND JASPER-
507 PM EDT WED JUN 29 2011
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF JASPER AND BEAUFORT
COUNTIES THROUGH 545 PM EDT...
AT 504 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM DATAW ISLAND TO
DAUFUSKIE ISLAND...MOVING SOUTHEAST AT 10 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BEAUFORT...BELLINGER HILL AREA...BLUFFTON...BURTON...CALAWASSIE
ISLAND...FOREST BEACH...FRIPP ISLAND...HARDEEVILLE...HILTON HEAD
ISLAND...LADYS ISLAND...LEMON ISLAND...PARRIS ISLAND...PORT
ROYAL...PRITCHARDVILLE...ROSE HILL...AND SUN CITY...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
DIME SIZE HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY
FLOOD DITCHES AND LOW-LYING AREAS. REDUCE VEHICLE SPEED TO LOWER THE
RISK OF HYDROPLANING. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE
ROAD. SEEK AN ALTERNATE ROUTE.
&&
LAT...LON 3204 8092 3210 8100 3209 8110 3210 8108
3211 8110 3241 8111 3245 8080 3257 8058
3249 8047 3243 8046 3241 8042 3231 8043
3226 8060 3225 8063 3222 8062 3214 8074
3210 8082 3211 8084 3206 8089 3203 8088
TIME...MOT...LOC 2107Z 303DEG 10KT 3242 8056 3210 8093SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
531 PM EDT WED JUN 29 2011
GAZ118-119-292215-
COASTAL CHATHAM-INLAND CHATHAM-
531 PM EDT WED JUN 29 2011
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF CHATHAM COUNTY
THROUGH 615 PM EDT...
AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM SAVANNAH AIRPORT
TO TYBEE ISLAND... NEARLY STATIONARY.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BLOOMINGDALE...FORT PULASKI NATIONAL MONUMENT...GARDEN CITY...
HUTCHINSON ISLAND...I-16/I-95 INTERCHANGE...ISLE OF HOPE...
MEINHARD...MONTEITH...MONTGOMERY...POOLER...PORT WENTWORTH...
SANDFLY...SAVANNAH...SAVANNAH AIRPORT...SAVANNAH HISTORIC DISTRICT...
SKIDAWAY ISLAND...THUNDERBOLT...TYBEE ISLAND...VERNONBURG...WASSAW
ISLAND...WHITE BLUFF...WHITEMARSH ISLAND...WILMINGTON ISLAND...
WINDSOR FOREST AND RIVERSIDE...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...
LOCALLY HEAVY RAIN APPROACHING 2 INCHES IN AN HOUR...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY
FLOOD DITCHES AND LOW-LYING AREAS. REDUCE VEHICLE SPEED TO LOWER THE
RISK OF HYDROPLANING. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE
ROAD. SEEK AN ALTERNATE ROUTE.
BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.
&&
LAT...LON 3210 8138 3223 8118 3220 8114 3218 8114
3220 8115 3216 8113 3216 8115 3215 8113
3214 8114 3213 8112 3212 8113 3209 8109
3211 8111 3209 8106 3210 8100 3204 8092
3200 8083 3185 8100
TIME...MOT...LOC 2130Z 170DEG 2KT 3214 8120 3202 8086PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
638 PM EDT WED JUN 29 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0637 PM HEAVY RAIN SAVANNAH AIRPORT 32.14N 81.20W
06/29/2011 M3.24 INCH CHATHAM GA ASOS
3.24 INCHES AND STILL FALLING.
&&
EVENT NUMBER CHS1100574
JRLPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
700 PM EDT WED JUN 29 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 PM HEAVY RAIN TYBEE ISLAND 32.02N 80.86W
06/29/2011 E3.00 INCH CHATHAM GA PUBLIC
SEVERAL YARDS FLOODED ON TYBEE ISLAND
&&
EVENT NUMBER CHS1100575
FWAThe Charleston,SC radar (KCLX), 74 km away, was scanning. The volume nearest the first event began at 23:07 UTC.
9 flash flood. Local standard time, as filed.
Police closed Butler Ave due to high water.
Law enforcement reported a flooded intersection at Victory and Live Oak.
Law enforcement reported a flooded intersection at Victory and MLK JR.
Law enforcement reported a flooded intersection at East Henry Lane and East Broad.
Law enforcement reported a flooded intersection at Drayton and 36th.
Law enforcement reported a flooded intersection at East Liberty and East Broad.
Law Enforcement reported a flooded intersection at Lathrope and Augusta.
Broadcast Media reported Anderson Street closed between Atlantic and Paulsen due to flooding.
Law enforcement reported one lane closed at Interstate 516 exit 7 due to flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2011Every state in 2011This day in weather historyWarnings in Georgia, June 2011
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: 328645, 328647, 328649, 328650, 328652, 328653, 328655, 328658, 328659.