A broken line of strong thunderstorms developed within an inland trough of low pressure and moved southward across southeast South Carolina. These storms produced large hail and damaging wind gusts.
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 broken line of strong thunderstorms developed within an inland trough of low pressure and moved southward across southeast South Carolina. These storms produced large hail and damaging wind gusts.
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 9, 12:41 PM EST, 44 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 141 PM EDT TUE JUN 9 2015 .SYNOPSIS... HIGH PRESSURE WILL RETREAT INTO THE ATLANTIC AS A WEAKENING COLD FRONT MOVES INTO THE CAROLINAS AND DISSIPATES ON WEDNESDAY. A PIEDMONT TROUGH WILL THEN PREVAIL INTO EARLY NEXT WEEK WHILE HIGH PRESSURE BECOMES THE PRIMARY WEATHER FEATURE THURSDAY THROUGH EARLY NEXT WEEK. && .NEAR TERM /THROUGH TONIGHT/... THIS AFTERNOON...ATLANTIC HIGH PRESSURE WILL CONTINUE TO SLIDE OFFSHORE AS A H5 SHORTWAVE SHIFTS OVER THE SOUTHEASTERN UNITED STATES. LATEST WATER VAPOR IMAGERY INDICATES A SLIGHTLY SLOWER PROGRESSION OF THE SHORTWAVE THAN MODELS HAVE SUGGESTED...THUS ENHANCED SHOWER AND THUNDERSTORM ACTIVITY COULD BE DELAYED FOR A SHORT PERIOD. THE SHORTWAVE WILL BE THE PRIMARY FORCING MECHANISM THAT KICKS OFF SHOWERS AND THUNDERSTORMS OVER A WARM AND MOIST AIRMASS EARLY THIS AFTERNOON...AS CURRENTLY SEEN OVER CENTRAL GEORGIA VIA RADAR IMAGERY. LATEST MESOANALYSIS INDICATES AN ERODING CAP WITH CONVECTION INITIATING OVER INLAND AREAS MAINLY BETWEEN 1 TO 2 PM THIS AFTERNOON. COVERAGE SHOULD THEN BECOME MORE WIDESPREAD AS A SEABREEZE MAKES WAY INLAND. THERE WILL BE A RISK OF SOME STRONGER THUNDERSTORMS DURING PEAK HEATING THIS AFTERNOON...WITH BEST CHANCES OCCURRING WHERE WIND FIELDS ARE SLIGHTLY STRONGER OVER THE TRI-COUNTY AREA. IT IS HERE WHERE THE SPC CURRENTLY HAS A MARGINAL RISK OF SEVERE WEATHER. MODEST DCAPES WITHIN A HIGHLY MOIST ATMOSPHERE CHARACTERIZED BY PWATS NEAR 1.8 INCHES AS WELL AS THE LACK OF SIGNIFICANT SHEAR AND POOR MID LVL LAPSE RATES INDICATE PULSE TYPE THUNDERSTORMS CAPABLE OF PRODUCING WET MICROBURSTS. ALTHOUGH THE MAIN THREAT OF SEVERE WEATHER SHOULD OCCUR OVER NORTHERN AREAS THIS AFTERNOON...WE COULD SEE A FEW STRONGER THUNDERSTORMS IN SOUTHEAST GEORGIA AS WELL WHERE SBCAPES ARE NOW UP TO 4000 J/KG AHEAD OF THE APPROACHING H5 SHORTWAVE. OVERALL HIGH TEMPS REMAIN ON TRACK THIS AFTERNOON DESPITE SOME CLOUD COVER. EXPECT TEMPS TO PEAK IN THE UPPER 80S TO NEAR 90...WARMEST OVER SOUTHEAST GEORGIA WHERE CONVECTION IS SLIGHTLY DELAYED. TONIGHT...CONVECTION IS EXPECTED TO EVOLVE INTO THE EVENING SUCH THAT THE BEST COVERAGE WILL BE ALONG AND SOUTH OF I-16 INCLUDING THE GEORGIA COASTAL WATERS. BY LATE IN THE OVERNIGHT...THE BEST FORCING WILL BE CENTERED ACROSS THE CHARLESTON COUNTY WATERS WITH SOME COVERAGE POSSIBLE BACK ACROSS THE COASTLINE. CONFIDENCE IN OVERNIGHT SHOWERS/THUNDERSTORMS IS ON THE LOW SIDE AS ITS DIFFICULT TO KNOW HOW WORKED OVER THE ATMOSPHERE WILL BE AND WHAT MESOSCALE BOUNDARIES MAY BE LURKING AROUND. IT WILL BE ANOTHER MILD NIGHT...WITH LOWS IN THE LOW 70S INLAND RANGING TO THE MID 70S AT THE COAST. && .SHORT TERM /WEDNESDAY THROUGH FRIDAY/... WEDNESDAY...A WEAK MID AND UPPER TROUGH WILL LINGER FOR ONE MORE DAY...WHILE A WEAKENED EAST-WEST ALIGNED COLD FRONT ACROSS THE CAROLINAS BECOMES DIFFUSE AND DISSIPATES. THE REMNANTS OF THE FRONT...THE RESULTANT SEA BREEZE AND SOME STRUNG OUT VORTICITY ALOFT WILL PROVIDE THE NECESSARY FOCUS FOR CONVECTION. SHOWERS/T-STORMS WILL BEGIN DURING MIDDAY ALONG AND INLAND FROM THE SEA BREEZE AS WE REACH OUR CONVECTIVE TEMP...THEN COVERAGE INCREASES AND PEAKS IN THE AFTERNOON AROUND 50 PERCENT. THE THERMODYNAMIC ENVIRONMENT IS DECENT AND WHERE BOUNDARY INTERACTIONS/MERGERS OCCUR THERE COULD CERTAINLY BE ISOLATED STRONG TO MARGINALLY SEVERE STORMS. BUT GIVEN PWATS BETWEEN 1 AND 2 STANDARD DEVIATIONS ABOVE NORMAL AND SLOW STORM MOTION...LOCALLY HEAVY RAINFALL WILL ALSO BE CAUSE FOR CONCERN. DESPITE SKIES BECOMING MOSTLY CLOUDY...WARM ADVECTION WILL BOOST TEMPS INLAND TO THE UPPER 80S OR NEAR 90. MUCH OF THE CONVECTION IS DIURNALLY DRIVEN AND BEGINS TO DWINDLE PRIOR TO MIDNIGHT...WITH THE BULK OF THE ACTIVITY FOUND IN THE OCEAN OVERNIGHT. THURSDAY...A SUB-TROPICAL ATLANTIC RIDGE THROUGHOUT MUCH OF THE VERTICAL WILL START TO BUILD ACROSS THE LOCAL DISTRICT...WITH THE FORMATION OF A PIEDMONT TROUGH AT THE SURFACE. THAT FEATURE AND THE SEA BREEZE WILL BE THE MAIN TRIGGERS FOR CONVECTION...AND WITH THE AVAILABILITY OF DEEP MOISTURE WITH PWATS AGAIN 1 TO 2 STANDARD DEVIATIONS ABOVE NORMAL...WILL ALLOW FOR SCATTERED SHOWERS/T-STORMS AGAIN. THE LACK OF FORCING ALOFT WILL LIMIT THE COVERAGE OF STRONG TO SEVERE STORMS. EXPECTING MOST COMMUNITIES TO HIT 90 BEFORE RAINS DEVELOP. FRIDAY...STRENGTHENING SUB-TROPICAL HIGH PRESSURE WILL EXPAND FURTHER ACROSS THE AREA WITH MID LEVEL HEIGHTS TO REACH 5900 METERS. THE MAIN RIDGE AXIS AT THE SURFACE WILL BE SITUATED NEAR OR JUST SOUTH OF THE CWFA...WITH A PROMINENT PIEDMONT TROUGH TO REMAIN IN PLACE. WHILE THERE IS STILL CONSIDERABLE MOISTURE...LARGE SCALE SINKING MOTION IS ALSO IN PLACE. THIS WILL LIMIT OUR CHANCES OF SHOWERS/T-STORMS TO 20-30 PERCENT AT MOST. 850 MB TEMPS WILL CLIMB TO NEAR 18C...WHICH SUPPORTS MAX TEMPS AT THE SURFACE 90-94F INLAND FROM THE INTRA-COASTAL. && .LONG TERM /FRIDAY NIGHT THROUGH MONDAY/... IMPRESSIVE RIDGING WILL PREVAIL BOTH SURFACE AND ALOFT TO PROVIDE THE REGION WITH OUR FIRST EXTENDED HOT SPELL OF THE SEASON. 850 MB TEMPS WILL REACH 18-20C WHICH EQUATES TO LOWER AND MIDDLE 90S FOR DAYTIME HIGHS. BUT LOW LEVEL THICKNESS FORECAST IS EVEN A FEW DEGREES HIGHER AND THIS WILL BE A FACTOR IN WHETHER OR NOT WE REACH OUR JUNE HEAT ADVISORY CRITERIA OF 105F. CURRENT TEMP/DEW POINT FORECASTS INDICATE THAT HEAT INDICES WILL REACH 100-104 EACH AFTERNOON...OR JUST SHY OF THE ADVISORY THRESHOLD. FOR THAT REASON WE HAVE OPTED TO KEEP MENTION OUT THE THE HAZARDOUS WEATHER OUTLOOK. THIS PATTERN WILL RESTRICT THE AMOUNT OF SHOWERS/T-STORMS THAT ARE ABLE TO INITIATE AND WE ARE SHOWING NO MORE SLIGHT CHANCE POPS INTO EARLY NEXT WEEK. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... DETERIORATING CONDITIONS ARE ANTICIPATED THIS AFTERNOON AS SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS DEVELOP OVER THE REGION. MVFR CONDITIONS WILL BE POSSIBLE BETWEEN 18-22Z AT CHS...FOLLOWED BY MVFR CONDITIONS AT THE SAV TERMINAL BETWEEN 19-22Z. TEMPO GUSTS BETWEEN 15-25 KTS HAVE ALSO BEEN MAINTAINED IN THE TAFS DURING SHOWER/THUNDERSTORM ACTIVITY THIS AFTERNOON. THERE IS ALSO A LOW CHANCE OF IFR CONDITIONS AT EITHER TERMINAL SHOULD A HEAVY THUNDERSTORM OCCUR. VFR CONDITIONS WILL LIKELY RETURN OVERNIGHT...BUT THERE WILL CONTINUE TO BE A RISK OF A SHOWER AND/OR THUNDERSTORM AT EITHER TERMINAL THROUGH AT LEAST MIDNIGHT. EXTENDED AVIATION OUTLOOK...TEMPORARY FLIGHT RESTRICTIONS ARE POSSIBLE DUE TO SHOWERS AND THUNDERSTORMS THROUGH THURSDAY...ESPECIALLY DURING THE AFTERNOON/EVENING HOURS. && .MARINE... THIS AFTERNOON...SOUTHWEST FLOW AS HIGH AS 15-20 KTS WILL BE POSSIBLE BETWEEN A WEAKENING COLD FRONT WELL TO OUR NORTH/NORTHWEST AND HIGH PRESSURE OVER THE SOUTHWEST ATLANTIC. WIND GUSTS COULD BE SLIGHTLY HIGHER NEAR THE TIME OF A SEABREEZE CIRCULATION BEGINNING TO SHIFT INLAND EARLY THIS AFTERNOON...BUT THE FREQUENCY OF HIGHER WINDS SHOULD BE SHORT-LIVED IN NATURE AND REMAIN JUST BELOW SMALL CRAFT ADVISORY CRITERIA. SEAS WILL RANGE BETWEEN 2-4 FT...HIGHEST IN OFFSHORE GEORGIA WATERS. ISOLATED TO SCATTERED THUNDERSTORMS WILL ALSO IMPACT THE WATERS THIS AFTERNOON...OCCASIONALLY DISRUPTING THE SYNOPTIC FLOW. TONIGHT...ANOTHER NOTABLE NOCTURNAL SURGE IS EXPECTED TO BRING ABOUT 15-20 KT OF FLOW. SEAS WILL GENERALLY BE 2-3 FT WITHIN 20 NM WITH A FEW 4 FOOTERS POSSIBLE RIGHT AROUND 20 NM. FOR THE OUTER WATERS...3-4 FT. THUNDERSTORMS WILL IMPACT THE WATERS AT TIMES...WITH THE BEST CHANCE FOR STORMS LATE TONIGHT. WEDNESDAY...A DECENT SW FLOW WILL PREVAIL BETWEEN THE REMAINS OF A COLD FRONT TO THE NORTH AND EXPANDING ATLANTIC HIGH PRESSURE. WHEN SEA BREEZE CIRCULATIONS ARE THROWN INTO THE MIX IT WILL SUPPORT AS HIGH AS NEAR 15 KT AND GUSTY DURING THE AFTERNOON. SCATTERED SHOWERS AND T-STORMS COULD THROW OUT EVEN STRONGER WINDS WITH LIGHTNING STRIKES ALSO A CONCERN. THURSDAY THROUGH SUNDAY...THE SYNOPTIC PATTERN REVEALS TWO PRIMARY FEATURES...THE INLAND PIEDMONT TROUGH AND A 1024 MB SUB-TROPICAL RIDGE SITUATED GENERALLY EAST-WEST ALONG ROUGHLY 30 DEGREES NORTH LATITUDE. THIS WILL RESULT IN TYPICAL VARIATIONS IN WINDS DUE TO AFTERNOON/EVENING SEA BREEZE INFLUENCES AND NIGHT TIME/EARLY MORNING LAND BREEZE EFFECTS. ON AVERAGE WINDS WILL BE HELD TO 15 KT OR LESS...BUT THERE IS A POTENTIAL FOR PERIODIC HIGHER WINDS DEPENDENT UPON HOW ROBUST THE ATLANTIC RIDGE BECOMES AND HOW HIGH LAND TEMPS ARE ABLE TO REACH. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. && SYNOPSIS... NEAR TERM...DPB SHORT TERM... LONG TERM... AVIATION...DPB MARINE...DPB
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 332 AM EDT TUE JUN 9 2015 AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040- 042>045-047>052-100745- 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- 332 AM EDT TUE JUN 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. SEVERE THUNDERSTORMS...SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA FROM LATE THIS MORNING THROUGH THE EVENING. A FEW OF THESE STORMS COULD BECOME SEVERE...WITH DAMAGING WIND GUSTS BEING THE PRIMARY THREAT. THE MAIN TIME PERIOD FOR SEVERE THUNDERSTORMS WILL BE FROM 1 PM TO 9 PM. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
156 PM EDT TUE JUN 9 2015
SCZ045-091845-
INLAND BERKELEY SC-
156 PM EDT TUE JUN 9 2015
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BERKELEY COUNTY UNTIL
245 PM EDT...
...MARINERS ON SOUTHEAST PORTION OF LAKE MARION SHOULD SEEK SAFE
HARBOR...
AT 155 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
EASTERN LAKE MARION...OR 17 MILES NORTHWEST OF MONCKS CORNER...MOVING
EAST AT 25 MPH.
DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
ST. STEPHEN...SAINT STEPHEN...EASTERN LAKE MARION AND EADYTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BOATERS ON LAKE MOULTRIE SHOULD SEEK SAFE HARBOR IMMEDIATELY. IF
CAUGHT ON THE OPEN WATER...STAY AS LOW AS POSSIBLE AND WEAR A
PERSONAL FLOTATION DEVICE. REMEMBER...IF YOU CAN HEAR THUNDER YOU ARE
AT RISK FOR BEING STRUCK BY LIGHTNING.
REPORT DAMAGE DIRECTLY TO THE CHARLESTON NATIONAL WEATHER SERVICE AT
1-888-383-2024 WHEN IT IS SAFE TO DO SO.
&&
LAT...LON 3350 7996 3343 7987 3342 7987 3340 7985
3333 8025 3338 8024 3339 8022 3345 8022
3344 8021 3345 8021 3346 8015 3345 8014
3348 8015 3350 8012
TIME...MOT...LOC 1755Z 257DEG 22KT 3341 8019
MTEThe Columbia radar (KCAE), 122 km away, was scanning. The volume nearest the first event began at 18:25 UTC.
16 thunderstorm wind, 4 hail, 3 lightning, 2 flash flood, 1 tornado. Local standard time, as filed.
Several videos and pictures were taken of a waterspout on the northern end of Lake Moultrie. The waterspout did not make landfall.
The South Carolina Highway Patrol reported a tree down on Wire Road near the Dorchester and Orangeburg county line.
Law enforcement reported a tree down and blocking Interstate 95 near mile marker 67.5.
The South Carolina State Highway Patrol reported a tree down near the intersection of Lodge Highway and Sunflower Drive.
The Berkeley County 911 Call Center reported a tree and power lines down on a mobile home along Highway 41.
A tree was reported down off of Foster Creek Road in Hanahan Plantation subdivision.
The South Carolina Highway Patrol reported a tree down along Interstate 26 near mile marker 205 westbound.
Law enforcement reported a tree down on Highway 41 near Cainhoy Elementary School.
An NWS employee reported a 6 inch diameter oak tree branch about 6 to 8 ft long was down on Stall Road near Midland Park Road.
A trained spotter reported 1 inch hail lasting 20 minutes approximately 1/2 mile south of West Ashley High School.
Berkeley County dispatch reported that Harbour Lake Road is closed between Lighthouse Drive and Pineshadow Drive. Multiple cars were flooded and water was starting to come up to buildings. Also, several cars were reported flooded near the intersection of River Avenue and Otranto. Other flooded roadways included Henry E Brown Jr Boulevard near Stanhope Road.
An off duty NWS employee relayed a picture of quarter size hail in the Carolina Bay subdivision.
A trained spotter reported nickel size hail along Glenn McConnell Parkway.
The media reported quarter size hail near the intersection of Glenn McConnell Parkway and Mary Ader Avenue.
A large tree was reported down in Providence Commons.
Charleston City Police reported numerous roads closed due to flash flooding resulting from the heavy rainfall. These roads include Ashley Avenue, Bennett Street, President Street, Line Street, Fishburne Street , Rutledge Avenue, King Street, Huger Street, Septima Clark Parkway, and Bogard Street.
The South Carolina Highway Patrol reported a tree down near the intersection of Wood Road and Green Pond Highway.
Law enforcement reported a tree down on Palmetto Bluff Road.
An emergency manager reported a structure fire due to lightning in the 9 block area of Ashton Cove on Hilton Head Island.
An emergency manager reported trees down near the intersection of North Street and Ribaut Road.
Law enforcement reported a tree down on Shady Oak Circle.
An emergency manager reported a structure fire caused by lightning in the 20 block area of Ironwood Circle.
The Beaufort County 911 Call Center reported a tree down near the 40 block of Candy Johnson Drive.
The Beaufort County 911 Call Center reported a tree down on Sheldon Church Road.
An emergency manager reported trees down on Candy Johnson Drive.
An emergency manager reported a structure fire due to lightning in the 600 block area of Dolphin Road on Fripp Island.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2015Every state in 2015This day in weather historyThe tornado archive for South Carolina, 2015Warnings in South Carolina, June 2015
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: 586580, 586589, 586500, 586501, 586518, 586524, 586530, 586536, 586545, 586466, 590978, 586467, 586468, 586470, 586551, 590984, 586554, 586556, 586472, 586557, 586558, 586474, 586564, 586566, 586568, 586490.