Thunderstorms developed during evening hours as a weak mid level disturbance passed over a moderately unstable environment.
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.
Thunderstorms developed during evening hours as a weak mid level disturbance passed over a moderately unstable environment.
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, 7:40 PM EST, 1 hour 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 840 PM EDT MON JUN 9 2014 .SYNOPSIS... WEAK HIGH PRESSURE WILL PREVAIL THROUGH TUESDAY. A TROUGH OF LOW PRESSURE WILL THEN DEVELOP OVER THE SOUTHEAST STATES AND PERSIST THROUGH EARLY NEXT WEEK. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... THE SEA BREEZE IS POISED TO INTERSECT THE ONGOING CONVECTION OVER ORANGEBURG COUNTY WITHIN THE NEXT HOUR. THIS MAY RESULT IN A BRIEF INCREASE IN COVERAGE/INTENSITY THROUGH 11 PM...MAINLY ACROSS NORTHERN DORCHESTER AND MORE LIKELY NORTHERN BERKELEY COUNTY. ADJUSTED POPS SLIGHTLY TO REFLECT THIS THINKING. DECENT INSTABILITY WAS STILL NOTED ON THE 10/00Z KCHS RAOB SO AN ISOLATED SEVERE TSTM IS STILL A POSSIBILITY...MAINLY OVER THE CHARLESTON TRI-COUNTY AREA. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/... TUESDAY...A DEEP UPPER TROUGH OVER THE LOWER MISSISSIPPI VALLEY AT THE START OF THE DAY WILL STEADILY LIFT NORTHEAST INTO THE OHIO VALLEY DURING THE EVENING AND NIGHTTIME HOURS. THIS SHIFT WILL ALLOW A DOWNSTREAM RIDGE TO BRIEFLY BUILD BACK INTO THE SOUTHEAST STATES...WITH ACCOMPANYING NEGATIVE VORTICITY ADVECTION SLIPPING INTO MUCH OF GEORGIA AND SOUTH CAROLINA. CONVECTIVE COVERAGE DURING THE AFTERNOON HOURS COULD THUS BE LIMITED...AS THE BEST FORCING ALOFT IS CONFINED WEST AND NORTH OF THE FORECAST AREA. THE SEABREEZE WILL THEN BECOME THE ONLY NOTABLE FOCUS FOR DEVELOPMENT. HAVE THUS ADVERTISED THE LOWEST RAIN CHANCES OF THE PERIOD FOR TUESDAY...CAPPING SHOWER/THUNDERSTORM POTENTIAL IN THE SLIGHT CHANCE RANGE ALONG AND INLAND OF THE SEABREEZE DURING THE AFTERNOON/EARLY EVENING HOURS. RISING HEIGHTS ALOFT AND CONTINUED WEST TO SOUTHWEST FLOW WILL SUPPORT ANOTHER HOT AND HUMID DAY...WITH HIGH TEMPERATURES IN THE MID 90S AWAY FROM THE COAST AND HEAT INDICES PEAKING AT 100 TO 101 DEGREES ACROSS FAR INLAND LOCATIONS. WEDNESDAY...THE TRANSIENT DOWNSTREAM RIDGE WILL QUICKLY DAMPEN AND SHIFT FARTHER INTO THE ATLANTIC...WHILE THE AXIS OF THE UPPER TROUGH EXPANDS ACROSS THE EASTERN UNITED STATES. THE SURFACE PATTERN WILL GRADUALLY TRANSITION INTO A WEAK TROUGH INLAND...WHILE SHORTWAVE ENERGY ON THE LEADING EDGE OF THE UPPER LEVEL SYSTEM ALLOWS AN INCREASE IN DEEP LAYER MOISTURE AND REDUCES ANY LINGERING SUBSIDENCE. WILL CONTINUE TO INDICATE FAIRLY HIGH CONFIDENCE IN SHOWER/THUNDERSTORM COVERAGE...ESPECIALLY DURING THE FAVORED AFTERNOON TIME FRAME YET POSSIBLY PERSISTING INTO THE EVENING/OVERNIGHT HOURS DUE TO THE UPPER LEVEL SUPPORT. HIGH TEMPERATURES WILL PEAK A DEGREE OR TWO LOWER THAN EARLIER IN THE WEEK DUE TO CLOUD COVER AND DECREASING HEIGHTS ALOFT. THURSDAY...THE AXIS OF THE UPPER TROUGH WILL CONTINUE TO SHIFT TOWARD THE COASTLINE...WITH EMBEDDED SHORTWAVE ENERGY SUPPORTING THE DEVELOPMENT OF A SURFACE WAVE OF LOW PRESSURE ACROSS THE CAROLINAS. THESE FEATURES WILL ENHANCE TYPICAL SEABREEZE CONVECTION AND ONCE AGAIN SUPPORT SCATTERED THUNDERSTORMS ACROSS THE FORECAST AREA DURING THE FAVORED AFTERNOON/EARLY EVENING TIME FRAME. AS IS TYPICALLY THE CASE IN SUMMER-TYPE CONVECTION...MODERATE INSTABILITY WITHIN WARM AND HUMID CONDITIONS DURING THE AFTERNOON EACH DAY COULD SUPPORT AN ISOLATED STRONG TO SEVERE THUNDERSTORM...ESPECIALLY WHERE BOUNDARY INTERACTIONS OCCUR. AT THIS POINT...DETERMINING SPECIFIC TIMING AND LOCATIONS OF ANY ORGANIZED CONVECTION IS DIFFICULT AND WILL LIKELY NEED TO BE HANDLED ON A SHORT TERM BASIS. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... A SOMEWHAT TYPICAL SUMMERTIME PATTERN WILL OCCUR...ALTHOUGH DAYTIME CONVECTION COULD BE SLIGHTLY ENHANCED THROUGH THE WEEKEND DUE TO A WEAK LINGERING UPPER TROUGH. TEMPS WILL BE SLIGHTLY MODERATED BY THE LACK OF APPRECIABLE UPPER HEIGHT RISES...KEEPING HIGHS AROUND 90 EACH DAY. DUE TO THE WEAK TROUGH EXPECTED TO LINGER OVER THE AREA THROUGH SUNDAY...HAVE KEPT A SLIGHT CHANCE POP IN FOR OVERNIGHT HOURS WITH 20 TO 40 POP DURING THE DAYTIME. && .AVIATION /01Z TUESDAY THROUGH SATURDAY/... VFR. SLIGHT CHANCE FOR TSTM IMPACTS AT KCHS 00-03Z...BUT CONFIDENCE IS LOW. EXTENDED AVIATION OUTLOOK...MODERATE RISK FOR BRIEF FLIGHT RESTRICTIONS EACH AFTERNOON/EARLY EVENING DUE TO SHOWERS/TSTMS. && .MARINE... TONIGHT...THE LOCAL WATERS WILL BE SANDWICHED BETWEEN THE BERMUDA HIGH TO THE EAST AND A LOW PRESSURE SYSTEM ENTERING THE MID MISSISSIPPI VALLEY. THIS WILL PROMOTE A GENERAL SOUTHWEST FLOW ACROSS THE WATERS. OVERALL THE GRADIENT WILL NOT BE ALL THAT TIGHT SO WIND SPEEDS ARE EXPECTED TO REMAIN LESS THAN 15 KT. SEAS WILL BE 2 FT WITHIN 20 NM AND 2-3 FT BEYOND. TUESDAY THROUGH SATURDAY...ATLANTIC HIGH PRESSURE WILL REMAIN THE DOMINANT FEATURE OVER THE MARINE ZONES THROUGH MUCH OF THE PERIOD...WHILE AN INLAND TROUGH GRADUALLY EDGES CLOSER TO SHORE. SOUTH TO SOUTHWEST FLOW WILL PREVAIL...WITH MODEST AFTERNOON SEA BREEZE CIRCULATIONS DEVELOPING ALONG THE COAST. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...NONE. SC...NONE. MARINE...NONE. && ST
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 855 PM EDT MON JUN 9 2014 SCZ044-045-052-110100- DORCHESTER-INLAND BERKELEY-TIDAL BERKELEY- 855 PM EDT MON JUN 9 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. SEVERE THUNDERSTORMS...AN ISOLATED SEVERE THUNDERSTORM COULD AFFECT DORCHESTER AND BERKELEY COUNTIES THROUGH MIDNIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME. AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-042- 043-047>051-110100- 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-INLAND JASPER-BEAUFORT- COASTAL COLLETON-CHARLESTON-COASTAL JASPER- 855 PM EDT MON JUN 9 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
850 PM EDT MON JUN 9 2014
SCZ045-100115-
INLAND BERKELEY-
850 PM EDT MON JUN 9 2014
...MARINERS ON EASTERN LAKE MARION SHOULD SEEK SAFE HARBOR...
AT 850 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS...ALONG A LINE FROM ELLOREE TO ORANGEBURG TO
JUST NORTH OF DENMARK...MOVING EAST AT 20 MPH. THE STORMS WILL
AFFECT THE EASTERN PORTIONS OF LAKE MARION THROUGH 10 PM. FISHERMAN
AND RECREATIONAL BOATERS ON THE LAKE ARE URGED TO SEEK SAFE HARBOR.
REMEMBER...LIGHTNING CAN STRIKE MANY MILES FROM THE PARENT
THUNDERSTORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE STORMS ARE EXPECTED TO IMPACT EASTERN LAKE MARION. BOATERS
SHOULD SEEK SAFE HARBOR IMMEDIATELY. IF CAUGHT ON THE OPEN
WATERS...STAY AS LOW AS POSSIBLE AND WEAR A PERSONAL FLOATATION
DEVICE. SWIMMERS SHOULD GET OUT OF THE WATER AND INTO A STURDY
BUILDING. REMEMBER...IF YOU CAN HEAR THUNDER YOU ARE AT RISK OF
BEING STRUCK BY LIGHTNING.
&&
LAT...LON 3339 8014 3339 8023 3342 8023 3345 8022
3345 8021 3345 8016
TIME...MOT...LOC 0048Z 263DEG 17KT 3335 8120 3353 8059SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
959 PM EDT MON JUN 9 2014
SCZ044-100230-
DORCHESTER-
959 PM EDT MON JUN 9 2014
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF DORCHESTER COUNTY
THROUGH 1030 PM EDT...
AT 956 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM 10 MILES NORTH OF
DUNCAN CHAPEL TO 12 MILES NORTHWEST OF MOUNT ZION...MOVING EAST AT 20
MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
DUNCAN CHAPEL...ROSINVILLE...MOUNT ZION...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HAVE AN ACTION PLAN READY IN THE EVENT THIS STORM STRENGTHENS OR A
WARNING IS ISSUED. CONTINUE TO MONITOR NOAA WEATHER RADIO ALL HAZARDS
FOR THE LATEST WEATHER INFORMATION.
&&
LAT...LON 3333 8049 3330 8049 3328 8048 3327 8045
3326 8043 3326 8040 3320 8046 3324 8069
3324 8068 3333 8051 3333 8050
TIME...MOT...LOC 0159Z 285DEG 17KT 3343 8051 3330 8075The Charleston,SC radar (KCLX), 86 km away, was scanning. The volume nearest the first event began at 02:22 UTC.
2 thunderstorm wind, 1 hail. Local standard time, as filed.
The South Carolina Highway Patrol reported a tree down along Interstate 26 eastbound near mile marker 170.
A trained spotter relayed a report of 1.5 inch hail.
The Dorchester County 911 Call Center reported a tree down on East Main Street in Dorchester South Carolina.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2014Every state in 2014This day in weather historyWarnings in South Carolina, June 2014
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: 530441, 530432, 530442.