A weak warm front gradually lifted north through southeast South Carolina between high pressure over the Atlantic and a trough of low pressure to the west. A few thunderstorms developed in deep moisture along and ahead of this weak front.
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 warm front gradually lifted north through southeast South Carolina between high pressure over the Atlantic and a trough of low pressure to the west. A few thunderstorms developed in deep moisture along and ahead of this weak front.
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 10, 9:55 PM EST, 1 hour 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 1055 PM EDT SUN JUN 10 2012 .SYNOPSIS... THROUGH EARLY THIS WEEK...MOISTURE WILL CONTINUE TO FLOW INTO THE REGION BETWEEN HIGH PRESSURE OVER THE ATLANTIC AND A TROUGH OF LOW PRESSURE APPROACHING FROM THE WEST. THE TROUGH WILL MOVE INTO THE VICINITY OF THE AREA BY MID WEEK AND WILL LINGER THROUGH LATE WEEK. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... THE WEAKENING REMNANTS OF THE QLCS WHICH PUSHED INTO THE FORECAST AREA MID EVENING WILL PUSH THROUGH LOCATIONS ALONG/EAST OF INTERSTATE 95 THROUGH MIDNIGHT-2 AM. OVERNIGHT...VARIOUS MESOSCALE SURFACE BOUNDARIES PRODUCED BY EARLIER CONVECTION...WEAK FORCING FOR ASCENT PRODUCED BY BROAD LOW LEVEL CONVERGENCE/UPPER LEVEL DIVERGENCE AND 700-400 MB DPVA AND DEEP LAYER MOISTURE FEATURING PWATS AROUND 2.15 INCH/150 PERCENT OF NORMAL WILL SUPPORT ADDITIONAL ISOLATED TO SCATTERED SHOWERS/THUNDERSTORMS OVERNIGHT. THUS...MAINTAINED CHANCE POPS THROUGH THE NIGHT. LOW LEVEL MOISTURE WILL SUPPORT AREAS OF STRATUS AND EVEN PATCHY FOG. HOWEVER...PERSISTENT INSTABILITY/MIXING/SURFACE WIND COULD LIMIT THE COVERAGE/IMPACT OF FOG. TEMPERATURES WILL REMAIN ABOVE 70F AT MOST LOCATIONS OVERNIGHT. && .SHORT TERM /6 AM MONDAY MORNING THROUGH WEDNESDAY/... MONDAY THROUGH WEDNESDAY...OVERALL FORECAST THINKING HAS NOT CHANGED AND AN EXTENDED PERIOD OF UNSETTLED WEATHER IS EXPECTED. THE SOUTHEAST COASTAL REGION WILL REMAIN UNDER A BAGGY 500 MB TROF WITH A SERIES OF SHORTWAVES MOVING THROUGH IN THE SW FLOW. MODEL TIME HEIGHTS AND SOUNDINGS SHOW DEEP MOISTURE ENTRENCHED ACROSS THE REGION WITH PWATS OF AROUND 2 INCHES EXPECTED TO PERSIST THROUGH MID WEEK. WITH MODERATE SURFACE BASED INSTABILITY DEVELOPING EACH AFTERNOON AND EVENING IN AN UNCAPPED ATMOSPHERE...GOOD COVERAGE OF SHOWERS AND STORMS WILL OCCUR EACH DAY. AT TIMES THE COVERAGE WILL MORE THAN LIKELY SUPPORT CATEGORICAL POPS...BUT GIVEN THE DIFFERENT HANDLING AND TIMING OF CONVECTION WITH EACH MODEL...ITS HARD TO CONFIDENTLY NAIL DOWN TIME PERIODS OF HIGHEST POPS RIGHT NOW. WILL ADVERTISE LIKELY POPS FOR MONDAY AND TUESDAY AFTERNOONS...WITH JUST HIGH CHANCE FOR WEDNESDAY RIGHT NOW AS THE BELT OF DEEPEST MOISTURE MAY DRIFT OFFSHORE DURING THE DAY. THE MAIN CONCERN DURING THIS TIME IS THE POTENTIAL FOR LOCALLY HEAVY RAINFALL DUE TO THE HIGH ATMOSPHERIC MOISTURE CONTENT AND EFFICIENT RAINFALL PRODUCTION. AREAS THAT SEE REPEAT ROUNDS OF THUNDERSTORMS COULD EXPERIENCE EXCESSIVE RAINFALL AND SOME LOCALIZED FLOODING CONCERNS. WILL CONTINUE THE MENTION IN THE HWO. HIGHS ARE EXPECTED TO REACH INTO THE MID/UPPER 80S EACH AFTERNOON WITH LOWS ONLY FALLING INTO THE LOW 70S. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... A DIFFUSE UPPER-LEVEL PATTERN WEDNESDAY NIGHT AND THURSDAY SHOULD EVENTUALLY GIVE WAY TO RIDGING TOWARD THE WEEKEND. A BAGGY SURFACE PATTERN WITH A WEAK IN-SITU TROUGH COULD MAINTAIN SOMEWHAT UNSETTLED CONDITIONS THROUGH AT LEAST FRIDAY. THE WEEKEND IS STILL UP IN THE AIR AS THE ECMWF SHOWS A WEAK WEDGE OF HIGH PRESSURE BUILDING DOWN THE EASTERN SEABOARD BUT THE GFS IS STILL SHOWING WEAK TROUGHING. WE KEPT SLIGHT CHANCE POPS IN THE FORECAST WITH NEAR-NORMAL TEMPS. && .AVIATION /03Z MONDAY THROUGH FRIDAY/... SHOWERS/THUNDERSTORMS WILL IMPACT TERMINALS PRIOR TO 04-06Z THIS EVENING. MEANWHILE...LOW LEVEL MOISTURE WILL SUPPORT MVFR OR LOWER CEILINGS AT ANY TIME TONIGHT THROUGH MONDAY...BUT THE PROBABILITY OF PREVAILING SUB-VFR FLIGHT CONDITIONS WILL BECOME HIGHEST LATER TONIGHT INTO EARLY MONDAY. THUNDERSTORMS ARE EXPECTED TO DEVELOP AGAIN MONDAY AFTERNOON. THUS...INTRODUCED CBS AND VCTS TO BOTH TERMINALS STARTING AT 18Z MONDAY...ALTHOUGH PRECIPITATION COULD DEVELOP A COUPLE OF HOURS EARLIER. EXTENDED AVIATION OUTLOOK...PERIODIC RESTRICTIONS TO VSBYS/CIGS WILL BE POSSIBLE THROUGH MUCH OF NEXT WEEK DUE TO AN ACTIVE PATTERN WITH ROUNDS OF SHOWERS AND THUNDERSTORMS EACH DAY. && .MARINE... OVERNIGHT...OUTSIDE ANY THUNDERSTORMS CONDITIONS SHOULD CHANGE LITTLE WITH WINDS 10-15 KNOTS FROM THE S/SE...ACCOMPANIED BY WITH SEAS 2 TO 3 FEET NEARSHORE AND UP TO 4 FEET BEYOND 20 NM. SHOWERS/THUNDERSTORMS COULD LOCALLY ALTER WINDS FOR BRIEF PERIODS TONIGHT. MONDAY THROUGH FRIDAY...WINDS ARE EXPECTED TO REMAIN OUT OF THE S TO SW THROUGH ABOUT MID WEEK. HIGH PRESSURE MAY BUILD IN FROM THE NORTH LATER IN THE WEEK AND TURN THE FLOW MORE E TO NE. IT STILL LOOKS LIKE WINDS AND SEAS WILL REMAIN BELOW SCA CRITERIA THROUGH THE PERIOD. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. && SYNOPSIS... NEAR TERM...SPR SHORT TERM...BSH LONG TERM...JRL AVIATION...SPR/DPB MARINE...JRL/SPR/ALSHEIMER/BSH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 1039 PM EDT SUN JUN 10 2012 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-120245- 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- 1039 PM EDT SUN JUN 10 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. HEAVY RAINFALL...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED MONDAY THROUGH TUESDAY. THE RAINFALL COULD BE HEAVY AT TIMES...CAPABLE OF PRODUCING LOCALIZED FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ330-350-352-354-374-120245- 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- 1039 PM EDT SUN JUN 10 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
647 PM EDT SUN JUN 10 2012
GAZ087-102315-
JENKINS-
647 PM EDT SUN JUN 10 2012
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF JENKINS COUNTY
THROUGH 715 PM EDT...
AT 642 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR BIRDSVILLE...MOVING EAST AT 10 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
PERKINS...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
DIME SIZE HAIL...
FUNNEL CLOUDS...
TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...
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 3292 8209 3293 8196 3296 8188 3295 8182
3293 8178 3291 8177 3284 8180 3283 8211
3287 8213 3288 8213
TIME...MOT...LOC 2247Z 254DEG 10KT 3289 8205
BSHSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
837 PM EDT SUN JUN 10 2012
GAZ087-110115-
JENKINS-
837 PM EDT SUN JUN 10 2012
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF JENKINS COUNTY
THROUGH 915 PM EDT...
AT 832 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM SOPERTON TO
WAYNESBORO...MOVING EAST AT 35 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BUTTS...EMMALANE...HERNDON...MILLEN...PERKINS AND SCARBORO...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
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 3283 8215 3288 8213 3292 8209 3293 8196
3296 8188 3295 8182 3291 8176 3267 8187
3265 8185 3261 8201 3266 8209
TIME...MOT...LOC 0036Z 262DEG 30KT 3301 8213 3257 8221SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
847 PM EDT SUN JUN 10 2012
GAZ099-100-114-115-110145-
BULLOCH-CANDLER-EVANS-TATTNALL-
847 PM EDT SUN JUN 10 2012
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF TATTNALL...EVANS...
BULLOCH AND CANDLER COUNTIES THROUGH 945 PM EDT...
AT 846 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM VIDALIA TO
BIRDSVILLE...MOVING EAST AT 30 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
ALINE...BELLVILLE...CLAXTON...COBBTOWN...COLLINS...HAGAN...
HOPEULIKIT...MANASSAS...METTER...NEVILS...PORTAL...PULASKI...REGISTER
AND WESTSIDE...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
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 3243 8219 3247 8219 3252 8216 3256 8209
3255 8203 3260 8201 3261 8200 3265 8185
3219 8174 3208 8221 3218 8219 3223 8222
3236 8225
TIME...MOT...LOC 0047Z 258DEG 27KT 3259 8211 3211 8232PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1100 PM EDT SUN JUN 10 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1055 PM HEAVY RAIN TYBEE ISLAND 32.02N 80.86W
06/10/2012 U0.00 INCH CHATHAM GA TRAINED SPOTTER
SPOTTER REPORTED MINOR STREET FLOODING AT THE
INTERSECTION OF 14TH AND LONG STREETS.
&&
EVENT NUMBER CHS1200357
BDCThe Charleston,SC radar (KCLX), 80 km away, was scanning. The volume nearest the first event began at 04:29 UTC.
1 thunderstorm wind. Local standard time, as filed.
The Charleston County 911 Dispatch reported a tree down along Maybank Highway on Wadmalaw Island.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2012Every state in 2012This day in weather historyWarnings in South Carolina, June 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: 393360.