Severe Thunderstorm Warning 30, NWS Charleston, SC

577 
WWUS52 KCHS 292032
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
432 PM EDT MON APR 29 2013

GAC051-103-SCC013-053-292115-
/O.CON.KCHS.SV.W.0030.000000T0000Z-130429T2115Z/
EFFINGHAM GA-JASPER SC-CHATHAM GA-BEAUFORT SC-
432 PM EDT MON APR 29 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR PORTIONS OF EFFINGHAM...JASPER...CHATHAM AND BEAUFORT COUNTIES...

AT 432 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
BOYD TO PORT WENTWORTH...MOVING EAST AT 15 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO QUARTER SIZE...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLUFFTON...BURTON...FOLLY FIELD...FOREST BEACH...GRAHAMVILLE...
HARDEEVILLE...HILTON HEAD ISLAND...JASPER...LAUREL BAY...OLD HOUSE...
PARRIS ISLAND...PORT ROYAL...PRITCHARDVILLE...PURYSBURGH...
RIDGELAND...SWITZERLAND...GARDEN CITY...MEINHARD...MONTEITH...PORT
WENTWORTH...FORT PULASKI NATIONAL MONUMENT...HUTCHINSON ISLAND...
SAVANNAH AIRPORT...BEAUFORT...BELLINGER HILL AREA...CALAWASSIE
ISLAND...HILTON HEAD AIRPORT...LADYS ISLAND...LEMON ISLAND...ROSE
HILL...SHELL POINT AND SUN CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3215 8133 3253 8097 3240 8042 3226 8058
      3225 8063 3222 8063 3220 8068 3214 8074
      3210 8082 3211 8084 3205 8089 3203 8088
      3203 8084 3200 8086
TIME...MOT...LOC 2032Z 284DEG 14KT 3241 8085 3214 8114

$$

062 
WWUS52 KCHS 292040
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
440 PM EDT MON APR 29 2013

GAC051-103-SCC013-053-292115-
/O.CON.KCHS.SV.W.0030.000000T0000Z-130429T2115Z/
EFFINGHAM GA-JASPER SC-CHATHAM GA-BEAUFORT SC-
440 PM EDT MON APR 29 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR PORTIONS OF EFFINGHAM...JASPER...CHATHAM AND BEAUFORT COUNTIES...

AT 440 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
LEMON ISLAND TO CLEARVIEW...MOVING EAST AT 15 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO GOLFBALL SIZE...

AT 435 PM EDT...LAW ENFORCEMENT REPORTED GOLFBALL SIZED HAIL IN SUN 
CITY.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLUFFTON...BURTON...FOLLY FIELD...FOREST BEACH...GRAHAMVILLE...
HARDEEVILLE...HILTON HEAD ISLAND...JASPER...LAUREL BAY...OLD HOUSE...
PARRIS ISLAND...PORT ROYAL...PRITCHARDVILLE...PURYSBURGH...
RIDGELAND...SWITZERLAND...GARDEN CITY...MEINHARD...MONTEITH...PORT
WENTWORTH...FORT PULASKI NATIONAL MONUMENT...HUTCHINSON ISLAND...
SAVANNAH AIRPORT...BEAUFORT...BELLINGER HILL AREA...CALAWASSIE
ISLAND...HILTON HEAD AIRPORT...LADYS ISLAND...LEMON ISLAND...ROSE
HILL...SHELL POINT AND SUN CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED WEAK ROTATION WITHIN THIS STORM. IF THE
ROTATION STRENGTHENS...A TORNADO WARNING MAY BE ISSUED.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3215 8133 3253 8097 3240 8042 3226 8058
      3225 8063 3222 8063 3220 8068 3214 8074
      3210 8082 3211 8084 3205 8089 3203 8088
      3203 8084 3200 8086
TIME...MOT...LOC 2040Z 284DEG 14KT 3240 8081 3213 8110

$$

210 
WWUS52 KCHS 292101
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
501 PM EDT MON APR 29 2013

GAC051-103-SCC013-053-292115-
/O.CON.KCHS.SV.W.0030.000000T0000Z-130429T2115Z/
EFFINGHAM GA-JASPER SC-CHATHAM GA-BEAUFORT SC-
501 PM EDT MON APR 29 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR PORTIONS OF EFFINGHAM...JASPER...CHATHAM AND BEAUFORT COUNTIES...

AT 501 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
SHELL POINT TO BELLINGER HILL AREA...MOVING EAST AT 15 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO QUARTER SIZE...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLUFFTON...BURTON...FOLLY FIELD...FOREST BEACH...GRAHAMVILLE...
HARDEEVILLE...HILTON HEAD ISLAND...JASPER...LAUREL BAY...OLD HOUSE...
PARRIS ISLAND...PORT ROYAL...PRITCHARDVILLE...PURYSBURGH...
RIDGELAND...SWITZERLAND...GARDEN CITY...MEINHARD...MONTEITH...PORT
WENTWORTH...FORT PULASKI NATIONAL MONUMENT...HUTCHINSON ISLAND...
SAVANNAH AIRPORT...BEAUFORT...BELLINGER HILL AREA...CALAWASSIE
ISLAND...HILTON HEAD AIRPORT...LADYS ISLAND...LEMON ISLAND...ROSE
HILL...SHELL POINT AND SUN CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3215 8133 3253 8097 3240 8042 3226 8058
      3225 8063 3222 8063 3220 8068 3214 8074
      3210 8082 3211 8084 3205 8089 3203 8088
      3203 8084 3200 8086
TIME...MOT...LOC 2101Z 284DEG 14KT 3238 8072 3211 8101

$$

873 
WWUS52 KCHS 292109
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
509 PM EDT MON APR 29 2013

GAC051-103-SCC013-053-292119-
/O.EXP.KCHS.SV.W.0030.000000T0000Z-130429T2115Z/
EFFINGHAM GA-JASPER SC-CHATHAM GA-BEAUFORT SC-
509 PM EDT MON APR 29 2013

...THE SEVERE THUNDERSTORM WARNING FOR PORTIONS OF EFFINGHAM...
JASPER...CHATHAM AND BEAUFORT COUNTIES WILL EXPIRE AT 515 PM EDT...

AT 509 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM WHICH PROMPTED
THE WARNING HAD WEAKENED...THUS THE SEVERE THUNDERSTORM WARNING HAS
BEEN ALLOWED TO EXPIRE.

ALTHOUGH THE SEVERE THUNDERSTORM WARNING IS NO LONGER IN EFFECT...
THUNDERSTORMS ARE STILL CAPABLE OF PRODUCING GUSTY WINDS...SMALL
HAIL...FREQUENT LIGHTNING AND HEAVY RAINFALL. THE SAFEST COURSE OF
ACTION IS TO REMAIN INDOORS UNTIL THE STORMS HAVE PASSED.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

LAT...LON 3215 8133 3253 8097 3240 8042 3226 8058
      3225 8063 3222 8063 3220 8068 3214 8074
      3210 8082 3211 8084 3205 8089 3203 8088
      3203 8084 3200 8086
TIME...MOT...LOC 2109Z 284DEG 14KT 3237 8068 3210 8097

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
407 PM EDT MON APR 29 2013

.SYNOPSIS...
A DISTURBANCE ALOFT WILL MOVE THROUGH THE REGION THIS EVENING...
BRINGING WITH IT UNSETTLED WEATHER. A WAVE OF WEAK LOW PRESSURE
WILL FORM OFF THE SE COAST LATE TONIGHT. A PERSISTENT PATTERN
FEATURING A STRONG WEDGE OF HIGH PRESSURE EAST OF THE APPALACHIANS
AND BROAD LOW PRESSURE SOUTH OF THE REGION WILL PREVAIL INTO NEXT
WEEKEND.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
NUMEROUS SHOWERS AND TSTMS ARE AFFECTING MUCH OF SOUTHEAST SOUTH
CAROLINA AND SOUTHEAST GEORGIA LATE THIS AFTERNOON. ACTIVITY IS
EXPECTED TO PEAK OVER THE NEXT 1-2 HRS AS INSTABILITY...LOW-
LEVEL CONVERGENCE BETWEEN THE INLAND MOVING SEA BREEZE AND THE
INLAND SURFACE AND UPPER FORCING WITH THE SHORTWAVE APPROACHING
THE CSRA MAXIMIZE. INSTABILITY PROFILES STILL SUPPORT A RISK FOR
ISOLATED SEVERE TSTMS WITH MARGINALLY SEVERE HAIL...DAMAGING
WINDS...FREQUENT CLOUD-TO-GROUND LIGHTNING AND LOCALIZED FLOODING
BEING THE PRIMARY CONCERNS. WILL CONTINUE TO HIGHLIGHT CATEGORICAL
POPS FOR MANY AREAS THROUGH 6 PM. ACTIVITY IS EXPECTED TO STEADILY
WANE THIS EVENING AS INSTABILITY DIMINISHES IN RESPONSE TO
ATMOSPHERIC OVERTURNING AND DIFFERENTIAL NEGATIVE VORTICITY
ADVECTION BEGINS TO SPREAD IN FROM THE WEST IN THE WAKE OF THE
SHORTWAVE.

MODELS SHOW WEAK LOW PRESSURE DEVELOPING OFF THE COAST TONIGHT IN
RESPONSE TO A SECONDARY IMPULSE PIVOTING ACROSS THE SOUTHERN
GEORGIA AND INTERACTING WITH STRONG BAROCLINICITY ALONG THE WESTERN
WALL OF THE GULF STREAM. THERE MAY BE JUST ENOUGH LIFT AND LOW-
LEVEL CONVERGENCE TO SUPPORT ISOLATED TO PERHAPS SCATTERED
SHOWERS AND POSSIBLE A TSTM OR TWO ACROSS MAINLY THE COASTAL
COUNTIES AFTER MIDNIGHT. WILL SHOW 20-30 PERCENT CHANCE OVERNIGHT
WITH NON-MENTIONABLE POPS ACROSS FAR INTERIOR SOUTHEAST GEORGIA.
LOWS WILL RANGE FROM THE UPPER 50S INLAND TO THE LOWER 60S AT THE
COAST.

THERE ARE SOME INDICATIONS THAT LOW CLOUDS WILL FILL IN LATE
TONIGHT. AREAS OF FOG ARE POSSIBLE DUE TO STRATUS BUILD DOWN...BUT
ITS UNCLEAR HOW WIDESPREAD ANY FOG WILL BECOME. GUIDANCE KEEPS
VSBYS OUT OF DENSE FOG ADVISORY THRESHOLDS...BUT SUSPECT AT LEAST
POCKETS OF DENSE FOG COULD OCCUR. WILL MAINTAIN AREAS OF FOG IN
THE GRIDDED AND TEXT FORECASTS AND HIGHLIGHT A POTENTIAL FOR DENSE
FOG IN THE HAZARDOUS WEATHER OUTLOOK.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/...
TUESDAY...A MID LVL RIDGE WILL CONTINUE AN EASTWARD SHIFT OVER THE
WESTERN ATLANTIC LEADING WAY TO A H5 SHORTWAVE SLOWLY PASSING OVER
THE FORECAST AREA DURING THE AFTERNOON. MODELS ARE IN GENERAL
AGREEMENT THAT A WEAK SFC LOW WILL DEVELOP IN RESPONSE TO THIS
FEATURE ALONG THE SOUTHEAST COAST NEAR THE WESTERN EDGE OF ATLANTIC
HIGH PRESSURE. THIS SHOULD LEAD TO AN INCREASING CHANCE OF SHOWERS
AND/OR THUNDERSTORMS DURING AFTERNOON HOURS WITH ACTIVITY DRIFTING
ONSHORE...ESPECIALLY ALONG THE NORTHERN PERIPHERY OF THE SFC LOW.
HAVE THEREFORE MAINTAINED GREATEST CHANCE POPS OVER COASTAL COUNTIES
IN SOUTHEAST SOUTH CAROLINA FROM EARLY MORNING INTO PEAK HEATING
HOURS. 1000-850 MB THICKNESSES FAVOR OVERALL HIGH TEMPS IN THE UPPER
70S TO LOWER 80S...HIGHEST OVER SOUTHEAST GEORGIA. GIVEN THE AMOUNT
OF HEATING...HAVE ALSO MAINTAINED A SLIGHT CHANCE OF SHOWERS AND/OR
THUNDERSTORMS OVER ALL AREAS IN SOUTHEAST GEORGIA. OVERNIGHT LOWS
ARE EXPECTED TO BE IN THE UPPER 50S TO LOWER 60S.

WEDNESDAY...A FAIRLY LOW CONFIDENCE FORECAST IS IN PLACE GIVEN THE
TRACK OF A WEAK SFC LOW OFF THE SOUTHEAST COAST...BUT THE GENERAL
CONSENSUS IS THAT THERE SHOULD BE A LULL IN PRECIP ACTIVITY THROUGH
A LARGE PART OF THE DAY AS A WEDGE OF SFC HIGH PRESSURE BUILDS FROM
THE NORTH OVER LAND. HAVE THEREFORE LIMITED CHANCES OF SHOWERS
AND/OR ISOLATED THUNDERSTORMS TO COASTAL COUNTIES AND EXTREME
SOUTHEAST GEORGIA COUNTIES WHERE BOUNDARY LAYER MOISTURE AND HEATING
ARE GREATEST. 1000-850 MB THICKNESSES FAVOR OVERALL HIGH TEMPS IN
THE MID TO UPPER 70S...HIGHEST OVER SOUTHEAST GEORGIA. OVERNIGHT
LOWS SHOULD BE IN THE MID 50S TO LOWER 60S.

THURSDAY...A WEAK SFC LOW LOOKS TO DEVELOP OVER THE NORTHERN GULF OF
MEXICO AHEAD OF A HIGH AMPLITUDE MID LVL TROUGH DIGGING OVER THE
CENTRAL UNITED STATES. AS THIS OCCURS...BOUNDARY LAYER MOISTURE AND
ISENTROPIC ASCENT SHOULD INCREASE OVER SOUTHEAST GEORGIA
EARLY...THEN SOUTHEAST SOUTH CAROLINA LATE. CHANCES OF SHOWERS
SHOULD ALSO INCREASE OVER THE FORECAST AREA DURING THE EVENING AS
PWATS APPROACH 1.5 INCHES OVER SOUTHEAST GEORGIA IN RESPONSE TO THE
WEAK SFC LOW DRIFTING EAST TO THE FLORIDA PENINSULA. CAN NOT RULE
OUT A SLIGHT CHANCE OF THUNDER OVER SOUTHEAST GEORGIA WHERE MOISTURE
AND OVERALL TEMPS WILL BE WARMEST. HOWEVER...OVERCAST SKIES WILL
LIKELY LIMIT OVERALL COVERAGE. AFTERNOON HIGH TEMPS SHOULD BE COOLER
DUE TO EXPANSIVE CLOUDS...IN THE LOW/MID 70S.

&&

.LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/...
A BLOCKING PATTERN WILL PREVAIL ACROSS THE EASTERN CONUS LATE WEEK
INTO NEXT WEEKEND. AT THE SURFACE...STRONG HIGH PRESSURE CENTERED
NORTH/NORTHEAST OF THE REGION WILL CONTINUE SUPPORT A WEDGE REGIME
EAST OF THE APPALACHIANS...WHILE BROAD LOW PRESSURE...EITHER AN
INVERTED TROUGH OR A CYCLONE...WILL PERSIST SOUTH OF THE REGION.
THIS SCENARIO WILL MAINTAIN ELEVATED ONSHORE FLOW AND BELOW NORMAL
DAYTIME TEMPERATURES. ALOFT...THE CENTER OF THE BLOCKING RIDGE WILL
REMAIN NORTH OF THE REGION...AND A BROAD WEAKNESS/UPPER TROUGH WILL
PERSIST ON THE SOUTHERN PERIPHERY OF THE UPPER RIDGE...EXTENDING
BETWEEN THE DEEP TROUGH WESTERN ATLANTIC TO THE DEEP UPPER LOW OVER
THE CENTRAL CONUS. STRENGTHENING HIGH PRESSURE AT THE SURFACE AND
ALOFT SHOULD SHUNT LOW PRESSURE AND SOUTH OF THE REGION...BUT
GUIDANCE CONTINUES TO DIFFER REGARDING THE RELATIVE
POSITION/ORIENTATION...STRENGTH AND EVOLUTION OF SIGNIFICANT
FEATURES...AND RUN TO RUN MODEL CONSISTENCY HAS REMAINED POOR.
GUIDANCE HAS TRENDED TOWARD A PERSISTENT BAND OF DEEP LAYER MOISTURE
AND ELEVATED POPS ESPECIALLY OVER SOUTHERN/WESTERN COUNTIES THURSDAY
NIGHT INTO FRIDAY OR SATURDAY...FOLLOWED BY EITHER A GENERAL PUSH OF
ENHANCED MOISTURE BACK TOWARD THE NORTH/EAST AT SOME POINT OVER THE
WEEKEND AS THE DEEP CENTRAL CONUS UPPER LOW BEGINS TO ROLL EAST OR A
BREAK DOWN OF THE BLOCKING PATTERN AND BUILDING HEIGHTS ALOFT/DRYING
AS DEPICTED BY THE 29/00Z EUROPEAN MODEL. FORECAST CONFIDENCE
REMAINS INSUFFICIENT TO IMPLEMENT MAJOR CHANGES TO ONGOING SLIGHT
CHANCE/CHANCE POPS THROUGH THE PERIOD. LOW LEVEL STABILITY PROVIDED
BY THE NORTHERN HIGH WILL GREATLY LIMIT OR ELIMINATE THE POTENTIAL
FOR DIURNAL THUNDERSTORMS.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
DEEP LAYER MOISTURE CONTINUES TO COVER BOTH TERMINALS...BUT CIGS
HAVE SCATTERED OUT AND CONDITIONS WILL REMAIN VFR. SHOWERS ARE
BEGINNING TO INCREASE IN AREA AND WILL BE OVER KCHS AND KSAV FOR THE
REST OF THE AFTERNOON. AS TEMPERATURES CONTINUE TO RISE...SOME
SHOWERS WILL STRENGTHEN INTO THUNDERSTORMS. STORMS WILL BE RATHER
SHORT DUE TO A 20 KNOT STORM MOTION. VSBY COULD REACH MVFR IF
THUNDERSTORMS DEVELOP OVER THE TERMINALS. THE TEMPS HAVE ALREADY
REACHED THE UPPER 70S...SO NOT EXPECTING MUCH MORE HEATING...BUT
ANY BREAKS IN CLOUD COVER WILL ALLOW FOR ADDITIONAL HEATING.
SHOWERS LOOK TO DECREASE AROUND SUNSET AND WITH TEMPERATURES
EXPECTED TO DROP TO THE LOW 60...CALM WINDS AND RESIDUAL
MOISTURE...FOG COULD BE A FACTOR. CONDITIONS LOOK MORE FAVORABLE
INLAND...BUT MVFR/IFR CONDITIONS ARE A GOOD POSSIBILITY. MODELS
ARE IN GOOD AGREEMENT OF A DECREASE IN MOISTURE ON TUESDAY AND
BOTH TERMINALS SHOULD GO BACK TO VFR BY MID MORNING.

EXTENDED AVIATION OUTLOOK...MVFR OR LOWER CIGS/VSBYS POSSIBLE TUESDAY
AND WEDNESDAY MORNING DUE TO FOG AND/OR SHOWERS. PERIODS OF MVFR
CONDITIONS THEN POSSIBLE THROUGH THURSDAY BUT FORECAST CONFIDENCE
REMAINS LOW. ODDS FAVOR MAINLY VFR CONDITIONS THROUGH THE REMAINDER
OF THE FORECAST PERIOD...ALTHOUGH OCCASIONAL FLIGHT RESTRICTIONS
WILL REMAIN POSSIBLE. FORECAST CONFIDENCE REMAINS LOW.

&&

.MARINE...
TONIGHT....SOUTHERLY FLOW REGIME WILL DOMINATE FOR MUCH OF THE
NIGHT BEFORE TURNING NORTH TO NORTHWEST LATE AS LOW PRESSURE
DEVELOPS OFF THE COAST. BOTH WINDS AND SEAS WILL REMAIN BELOW
SMALL CRAFT ADVISORY THRESHOLDS.

TUESDAY THROUGH LATE WEEK...TRANQUIL CONDITIONS WILL PERSIST OVER
THE COASTAL WATERS THROUGH TUESDAY NIGHT WITH A WEAK AREA OF LOW
PRESSURE ALONG THE SOUTHEAST COAST. CONDITIONS WILL THEN BEGIN TO
DETERIORATE WEDNESDAY AS THE PRESSURE GRADIENT TIGHTENS BETWEEN A
WEDGE OF HIGH PRESSURE BUILDING FROM THE NORTH AND LOW PRESSURE
DEVELOPING OVER THE NORTHERN GULF OF MEXICO AND FLORIDA PENINSULA.
SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED FOR MOST COASTAL WATERS
WEDNESDAY NIGHT INTO THURSDAY AS NORTHEAST WINDS APPROACH 20-25 KTS
AND SEAS BUILD FROM 4-6 FT...HIGHEST OVER OUTER GEORGIA WATERS.
THERE IS ALSO A LOW CHANCE OF GALE FORCE WINDS OVER NORTHERN SC
WATERS AND OUTER GEORGIA WATERS THURSDAY INTO EARLY FRIDAY AS THE
TIGHTENING OF THE GRADIENT PEAKS. SEAS COULD BUILD AS HIGH AS
7-9 FT...HIGHEST OVER OUTER GEORGIA WATERS. THIS LONG DURATION
EVENT...WHICH BY LATE WEEK COULD FEATURE AN INCREDIBLY LONG FETCH OF
NORTHEAST WINDS FROM THE NORTH ATLANTIC INTO THE SOUTHEAST
COAST...COULD PRODUCE SMALL CRAFT ADVISORY WINDS AND UNUSUALLY HIGH
SEAS THROUGH LATE WEEK. THE STRONG/LONG DURATION ONSHORE FLOW WILL
LIKELY ELEVATE THE THREAT FOR RIP CURRENTS ON AREA BEACHES MID WEEK
INTO NEXT WEEKEND.

&&

.TIDES/COASTAL FLOODING...
STRONG ONSHORE WINDS COULD PRODUCE HIGH SURF...BEACH EROSION AND
PERHAPS EVEN SHALLOW COASTAL FLOODING ESPECIALLY AROUND THE TIMES OF
HIGH TIDE DURING THE LATTER HALF OF THE WEEK INTO NEXT WEEKEND.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
SC...NONE.
MARINE...NONE.

&&

ST/DPB/BDC

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
427 AM EDT MON APR 29 2013

GAZ117-119-139-141-SCZ048>051-300830-
COASTAL BRYAN-COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH-
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
427 AM EDT MON APR 29 2013

...MODERATE RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND
SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   MODERATE RISK FOR RIP CURRENTS.

DENSE FOG...AREAS OF FOG ARE POSSIBLE AFTER MIDNIGHT TONIGHT.
FOG COULD BECOME LOCALLY DENSE...AND DENSE FOG ADVISORIES COULD
EVENTUALLY BE ISSUED.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

DENSE FOG...AREAS OF FOG COULD PERSIST INTO TUESDAY MORNING.
LOCALLY DENSE FOG IS POSSIBLE...AND DENSE FOG ADVISORIES COULD
EVENTUALLY BE ISSUED.

COASTAL HAZARDS...BETWEEN STRENGTHENING HIGH PRESSURE EAST OF THE
APPALACHIANS AND LOW PRESSURE SOUTH OF THE REGION...STRONG
ONSHORE WINDS WILL LIKELY DEVELOP MID TO LATE WEEK INTO NEXT
WEEKEND. THIS PATTERN COULD PRODUCE HIGH SURF...AN ELEVATED RISK
FOR RIP CURRENTS...BEACH EROSION AND SHALLOW COASTAL FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

GAZ087-088-099>101-114>116-118-137-138-140-SCZ040-042>045-047-052-
300830-
JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-INLAND CHATHAM-LONG-INLAND LIBERTY-INLAND MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-INLAND BERKELEY-
INLAND JASPER-TIDAL BERKELEY-
427 AM EDT MON APR 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND
SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

DENSE FOG...AREAS OF FOG ARE EXPECTED AFTER MIDNIGHT TONIGHT. FOG
COULD BECOME LOCALLY DENSE...AND DENSE FOG ADVISORIES COULD
EVENTUALLY BE ISSUED.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

DENSE FOG...AREAS OF FOG ARE EXPECTED TO PERSIST INTO TUESDAY
MORNING. LOCALLY DENSE FOG IS POSSIBLE...AND DENSE FOG ADVISORIES
COULD EVENTUALLY BE ISSUED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

AMZ330-350-352-354-374-300830-
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 AM EDT MON APR 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

GALES...BETWEEN BUILDING HIGH PRESSURE NORTH AND WEST OF THE
WATERS AND LOW PRESSURE TO THE SOUTH OF THE REGION...STRONG
ONSHORE WINDS WILL DEVELOP MID TO LATE WEEK AND WILL PERSIST INTO
THIS WEEKEND. GALES AND HIGH SEAS ARE POSSIBLE...AND GALE WATCHES
AND WARNINGS COULD EVENTUALLY BE POSTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
255 PM EDT MON APR 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0255 PM     HAIL             HALFMOON LANDING        31.70N  81.28W
04/29/2013  M0.70 INCH       LIBERTY            GA   PUBLIC

&&

EVENT NUMBER CHS1300228

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
305 PM EDT MON APR 29 2013

SCZ043>045-048>050-292000-
BEAUFORT-CHARLESTON-COASTAL COLLETON-DORCHESTER-INLAND
BERKELEY-INLAND COLLETON-
305 PM EDT MON APR 29 2013

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF DORCHESTER...
CHARLESTON...BERKELEY...COLLETON AND BEAUFORT COUNTIES THROUGH 400 PM
EDT...

AT 302 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM SIDNEY TO
WIGGINS...MOVING EAST AT 30 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
ADAMS RUN...ASHEPOO...CHARLESTON INTL AIRPORT...CHARLESTON AIRPORT...
COLLEGE PARK...COTTAGEVILLE...GIVHANS...GREEN POND...
HOLLYWOOD...JACKSONBORO...JEDBURG...JOHNS
ISLAND...KNIGHTSVILLE...LADSON...MEGGETT...RAVENEL...RIDGEVILLE...RIT
TER...ROUND O...SANGAREE...SHADOWMOSS...SUMMERVILLE...WADMALAW
ISLAND...WEST ASHLEY...YONGES ISLAND...ARCHDALE...BEARS
BLUFF...GIVHANS FERRY STATE PARK...MAGNOLIA GARDENS...MIDDLETON
PLACE...AND SLANDS BRIDGE...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...

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 3322 8019 3272 7994 3255 8061 3299 8068
TIME...MOT...LOC 1905Z 264DEG 25KT 3304 8053 3259 8054

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
311 PM EDT MON APR 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0240 PM     TSTM WND DMG     SOUTH NEWPORT           31.64N  81.40W
04/29/2013                   MCINTOSH           GA   EMERGENCY MNGR

            THE MCINTOSH COUNTY EMERGENCY MANAGER REPORTED TREES
            AND POWERLINES BLOWN DOWN ALONG HIGHWAY 17 JUST INSIDE
            THE MCINTOSH AND LIBERTY COUNTY LINE. TIME ESTIMATED
            BASED ON RADAR.

&&

EVENT NUMBER CHS1300229

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
337 PM EDT MON APR 29 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0329 PM     TSTM WND DMG     SAPELO ISLAND           31.48N  81.24W
04/29/2013                   MCINTOSH           GA   PARK SERVICE

            NUMEROUS TREES DOWN ACROSS THE SOUTH END OF SAPELO
            ISLAND INCLUDING A 100-YEAR OLD 60 FT OAK. REPORTED BY
            GEORGIA DEPARTMENT OF NATURAL RESOURCES.

&&

EVENT NUMBER CHS1300230

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
402 PM EDT MON APR 29 2013

SCZ044-045-049-050-052-292115-
CHARLESTON-COASTAL COLLETON-DORCHESTER-INLAND BERKELEY-TIDAL
BERKELEY-
402 PM EDT MON APR 29 2013

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF DORCHESTER...
CHARLESTON...BERKELEY...COLLETON AND GEORGETOWN COUNTIES THROUGH 515
PM EDT...

AT 357 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM GREGGS LANDING TO
EDISTO ISLAND...MOVING EAST AT 20 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
AWENDAW...DOWNTOWN CHARLESTON...CHARLESTON...DANIEL ISLAND...EDISTO
ISLAND...FOLLY BEACH...GOOSE CREEK...HANAHAN...JAMES ISLAND...JOHNS
ISLAND...KIAWAH ISLAND...LADSON...MCCLELLANVILLE...MOUNT
PLEASANT...NORTH CHARLESTON...RAVENEL...ROCKVILLE...SEABROOK
ISLAND...SULLIVANS ISLAND...WADMALAW ISLAND...WEST ASHLEY...CAPE
ROMAIN...ISLE OF PALMS...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD-TO-GROUND LIGHTNING IS OCCURRING. POSTPONE OUTDOOR
ACTIVITIES PROMPTLY. SEEK SHELTER INSIDE AN ENCLOSED BUILDING.

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 3308 7933 3300 7936 3299 7950 3303 7953
      3298 7955 3301 7957 3294 7961 3297 7955
      3290 7957 3279 7973 3275 7986 3268 7988
      3261 7998 3259 8011 3247 8033 3249 8036
      3247 8042 3300 8017 3325 7951 3314 7926
TIME...MOT...LOC 1959Z 258DEG 16KT 3294 8011 3260 8029

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
411 PM EDT MON APR 29 2013

GAZ101-118-119-SCZ047-048-051-292045-
BEAUFORT-COASTAL CHATHAM-COASTAL JASPER-EFFINGHAM-INLAND
CHATHAM-INLAND JASPER-
411 PM EDT MON APR 29 2013

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF EFFINGHAM...JASPER...
CHATHAM AND BEAUFORT COUNTIES THROUGH 445 PM EDT...

AT 406 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM SWITZERLAND TO
MEINHARD...MOVING EAST AT 15 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BLUFFTON...BURTON...GRAHAMVILLE...HARDEEVILLE...JASPER...LAUREL
BAY...OLD HOUSE...PRITCHARDVILLE...PURYSBURGH...RIDGELAND...
SWITZERLAND...GARDEN CITY...MEINHARD...MONTEITH...PORT WENTWORTH...
SAVANNAH AIRPORT...BEAUFORT...BELLINGER HILL AREA...CALAWASSIE
ISLAND...LEMON ISLAND...ROSE HILL...SHELL POINT AND SUN CITY...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...

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 3246 8064 3208 8100 3215 8134 3250 8104
TIME...MOT...LOC 2011Z 278DEG 14KT 3241 8099 3218 8123