Flash Flood Warning 15, NWS Charleston, SC

260 
WGUS72 KCHS 120218
FFSCHS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1018 PM EDT THU JUL 11 2013

SCC005-120445-
/O.CON.KCHS.FF.W.0015.000000T0000Z-130712T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLENDALE SC-
1018 PM EDT THU JUL 11 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
NORTHERN ALLENDALE COUNTY...

AT 1010 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
THUNDERSTORMS WITH TORRENTIAL RAINFALL FALLING ACROSS MUCH OF 
ALLENDALE COUNTY. RADAR ESTIMATES AS MUCH AS 3 TO 7 INCHES OF RAIN 
HAS FALLEN ACROSS MAINLY THE NORTHERN PART OF THE COUNTY THIS 
EVENING.

THUNDERSTORMS CONTINUE TO DEVELOP AND THERE IS A POTENTIAL FOR 
UPWARDS OF 2 TO 3 MORE INCHES OF RAIN TO FALL THROUGH
1245 AM. SHOULD THIS OCCUR...THE RISK FOR SUBSTANTIAL FLASH FLOODING
WILL INCREASE. THIS COULD POTENTIALLY DEVELOP INTO A VERY DANGEROUS 
AND LIFE THREATENING SITUATION.

FLASH FLOODING IS EXPECTED IN AND AROUND ALLENDALE...APPLETON...
MARTIN...SEIGLING...SYCAMORE AND ULMER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAJORITY OF FLOOD DEATHS ARE DUE TO PEOPLE DRIVING INTO WATER OF
UNKNOWN DEPTH. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO
SWEEP VEHICLES OFF THE ROAD. EVEN MODERN SPORT UTILITY VEHICLES ARE
VULNERABLE TO FLOODING. TO AVOID THE RISK OF DEATH...FIND AN
ALTERNATE ROUTE IF THE ROAD IS FLOODED.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH
TWITTER USING #WXREPORT.

&&

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

175 
WGUS72 KCHS 120259
FFSCHS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1059 PM EDT THU JUL 11 2013

SCC005-120445-
/O.CON.KCHS.FF.W.0015.000000T0000Z-130712T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLENDALE SC-
1059 PM EDT THU JUL 11 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
NORTHERN ALLENDALE COUNTY...

AT 1056 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
THUNDERSTORMS WITH TORRENTIAL RAINFALL FALLING ACROSS MUCH OF 
ALLENDALE COUNTY. RADAR ESTIMATES AS MUCH AS 3 TO 7 INCHES OF RAIN 
HAS FALLEN ACROSS MAINLY THE NORTHERN PART OF THE COUNTY THIS 
EVENING.

THUNDERSTORMS CONTINUE TO DEVELOP AND THERE IS A POTENTIAL FOR 
UPWARDS OF 1 TO 3 MORE INCHES OF RAIN TO FALL THROUGH
1245 AM. SHOULD THIS OCCUR...THE RISK FOR SUBSTANTIAL FLASH FLOODING
WILL INCREASE. THIS COULD POTENTIALLY DEVELOP INTO A VERY DANGEROUS 
AND LIFE THREATENING SITUATION.

THE ALLENDALE COUNTY WARNING POINT RECENTLY REPORTED SEVERAL
CARS HAD BEEN WASHED OFF HIGHWAY 278 NEAR MCMILLIAN MEMORIAL ROAD.

FLASH FLOODING IS EXPECTED IN AND AROUND ALLENDALE...APPLETON...
MARTIN...SEIGLING...SYCAMORE AND ULMER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAJORITY OF FLOOD DEATHS ARE DUE TO PEOPLE DRIVING INTO WATER OF
UNKNOWN DEPTH. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO
SWEEP VEHICLES OFF THE ROAD. EVEN MODERN SPORT UTILITY VEHICLES ARE
VULNERABLE TO FLOODING. TO AVOID THE RISK OF DEATH...FIND AN
ALTERNATE ROUTE IF THE ROAD IS FLOODED.

HOMES AND BUSINESSES MAY BEGIN TO FLOOD DUE TO THE TORRENTIAL
RAINFALL. IF YOU ARE IN A LOW-LYING AREA...BE PROACTIVE. RAISE
SENSITIVE ITEMS OFF THE GROUND BEFORE FLOODING BEGINS.

&&

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

835 
WGUS72 KCHS 120407
FFSCHS

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1147 PM EDT THU JUL 11 2013

SCC005-120445-
/O.COR.KCHS.FF.W.0015.000000T0000Z-130712T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLENDALE SC-
1147 PM EDT THU JUL 11 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
NORTHERN ALLENDALE COUNTY...
...DANGEROUS FLASH FLOODING ONGOING...

AT 1144 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
THUNDERSTORMS WITH TORRENTIAL RAINFALL FALLING ACROSS MUCH OF 
ALLENDALE COUNTY. RADAR ESTIMATES AS MUCH AS 3 TO 8 INCHES OF RAIN 
HAS FALLEN ACROSS MAINLY THE NORTHERN PART OF THE COUNTY THIS 
EVENING.

THUNDERSTORMS CONTINUE TO DEVELOP AND THERE IS A POTENTIAL FOR 
UPWARDS OF 1 TO 3 MORE INCHES OF RAIN TO FALL THROUGH
1245 AM. LAW ENFORCEMENT RECENTLY REPORTED THAT SIGNIFICANT FLOODING
IS GOING ACROSS MAINLY THE NORTHERN PARTS OF THE COUNTY LATE
THIS EVENING. MANY CREEKS ARE OUT OF THEIR BANKS AND HAVE INUNDATED
SOME BRIDGES. SOUTH CAROLINA DEPARTMENT OF TRANSPORTATION IS ALSO 
IN THE PROCESS OF CLOSING SOME ROADWAYS DUE TO FLOOD WATERS. SEVERAL 
CARS HAVE ALREADY BEEN SWEPT OFF HIGHWAY 278. THIS IS A DANGEROUS 
SITUATION.

FLASH FLOODING IS EXPECTED IN AND AROUND ALLENDALE...APPLETON...
MARTIN...SEIGLING...SYCAMORE AND ULMER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAJORITY OF FLOOD DEATHS ARE DUE TO PEOPLE DRIVING INTO WATER OF
UNKNOWN DEPTH. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO
SWEEP VEHICLES OFF THE ROAD. EVEN MODERN SPORT UTILITY VEHICLES ARE
VULNERABLE TO FLOODING. TO AVOID THE RISK OF DEATH...FIND AN
ALTERNATE ROUTE IF THE ROAD IS FLOODED.

HOMES AND BUSINESSES MAY BEGIN TO FLOOD DUE TO THE TORRENTIAL
RAINFALL. IF YOU ARE IN A LOW-LYING AREA...BE PROACTIVE. RAISE
SENSITIVE ITEMS OFF THE GROUND BEFORE FLOODING BEGINS.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH
TWITTER USING #WXREPORT.

&&

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

514 
WGUS52 KCHS 120440
FFWCHS
SCC005-121045-
/O.EXT.KCHS.FF.W.0015.000000T0000Z-130712T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
1240 AM EDT FRI JUL 12 2013

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHERN ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 645 AM EDT

* AT 1236 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  MODERATE TO OCCASIONALLY HEAVY RAINS AFFECTING MUCH OF ALLENDALE
  COUNTY. ALTHOUGH THE HEAVIEST RAINS HAVE TEMPORARILY DIMINISHED...
  CONDITIONS FAVOR ADDITIONAL THUNDERSTORMS WITH TORRENTIAL RAINFALL
  REDEVELOPING LATER TONIGHT. GIVEN WIDESPREAD FLASH FLOODING IS 
  ONGOING AND ANY ADDITIONAL RAINFALL WILL ONLY AGGRAVATE FLOODING 
  THAT IS ALREADY IN PROGRESS...THE FLASH FLOOD WARNING HAS BEEN 
  EXTENDED UNTIL 645 AM EDT. THIS IS A PARTICULARLY DANGEROUS
  SITUATION.

* FLASH FLOODING IS EXPECTED IN AND AROUND...
  ULMER...SYCAMORE...ALLENDALE...MARTIN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAJORITY OF FLOOD DEATHS ARE DUE TO PEOPLE DRIVING INTO WATER OF
UNKNOWN DEPTH. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO
SWEEP VEHICLES OFF THE ROAD. EVEN MODERN SPORT UTILITY VEHICLES ARE
VULNERABLE TO FLOODING. TO AVOID THE RISK OF DEATH...FIND AN
ALTERNATE ROUTE IF THE ROAD IS FLOODED.

TO REPORT FLOODING...CONTACT THE NATIONAL WEATHER SERVICE IN
CHARLESTON TOLL FREE AT 1-888-383-2024.

&&

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

920 
WGUS72 KCHS 120925
FFSCHS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
525 AM EDT FRI JUL 12 2013

SCC005-121045-
/O.CON.KCHS.FF.W.0015.000000T0000Z-130712T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLENDALE SC-
525 AM EDT FRI JUL 12 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 AM EDT FOR
NORTHERN ALLENDALE COUNTY...

AT 521 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE AREAS OF RAIN IN ALLENDALE COUNTY. THIS RAIN WAS LOCATED 
NEAR MARTIN...OR ABOUT 12 MILES WEST OF ALLENDALE...MOVING SOUTHEAST 
AT 5 MPH.

FLASH FLOODING IS EXPECT TO PERSIST IN AND AROUND 
ALLENDALE...APPLETON...MARTIN...SEIGLING...SYCAMORE AND ULMER.
THERE HAVE BEEN NUMEROUS REPORTS OF FLOODED ROADS. USE EXTREME
CAUTION IF YOU HAVE TO DRIVE THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

KEEP CHILDREN AWAY FROM STORM DRAINS...WATER CATCHMENTS...AND
STREAMS. ONLY A FEW INCHES OF MOVING WATER CAN KNOCK A CHILD OFF
THEIR FEET AND SWEEP THEM TO THEIR DEATH.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH
TWITTER USING #WXREPORT.

&&

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

542 
WGUS52 KCHS 121040
FFWCHS
SCC005-121345-
/O.EXT.KCHS.FF.W.0015.000000T0000Z-130712T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
640 AM EDT FRI JUL 12 2013

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHERN ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 945 AM EDT

* AT 637 AM EDT...RADAR INDICATED ADDITIONAL RAINFALL FALLING OVER   
  NORTHERN ALLENDALE COUNTY MOVING EAST AT 15 MPH.

  THE EMERGENCY MANAGER HAS REPORTED THAT DON HOUCK POND HAS 
  GIVEN WAY AND FLOOD WATERS HAD OVERTAKEN PARTS OF BREEZIE HILL 
  ROAD AND PORTIONS OF HIGHWAY 301. SIGNIFICANT FLOODING WAS 
  OCCURRING IN THIS AREA. ADDITIONAL RAINS WILL ONLY COMPOUND THE    
  ONGOING FLOOD PROBLEMS. FLOODING WILL CONTINUE THROUGH AT LAST MID 
  MORNING.

* FLASH FLOODING IS EXPECTED IN AND AROUND...
  MARTIN...APPLETON...SEIGLING...ALLENDALE...ULMER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAJORITY OF FLOOD DEATHS ARE DUE TO PEOPLE DRIVING INTO WATER OF
UNKNOWN DEPTH. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO
SWEEP VEHICLES OFF THE ROAD. EVEN MODERN SPORT UTILITY VEHICLES ARE
VULNERABLE TO FLOODING. TO AVOID THE RISK OF DEATH...FIND AN
ALTERNATE ROUTE IF THE ROAD IS FLOODED.

&&

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

349 
WGUS72 KCHS 121347
FFSCHS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
947 AM EDT FRI JUL 12 2013

SCC005-121357-
/O.EXP.KCHS.FF.W.0015.000000T0000Z-130712T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLENDALE SC-
947 AM EDT FRI JUL 12 2013

...THE FLASH FLOOD WARNING HAS EXPIRED FOR FOR NORTHERN ALLENDALE
COUNTY...

ALTHOUGH THE SIGNIFICANT FLOODING HAS ENDED...DRAINAGE SYSTEMS AND
CULVERTS WILL REMAIN FULL. PONDING WATER WILL PERSIST IN LOW-LYING
AREAS AND MAY POSE A HAZARD TO MOTORISTS. STAY TUNED TO NOAA WEATHER
RADIO ALL-HAZARDS FOR THE LATEST WEATHER INFORMATION.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH
TWITTER USING #WXREPORT.

LAT...LON 3313 8142 3311 8136 3312 8119 3306 8113
      3305 8110 3288 8148 3290 8147 3290 8148
      3292 8148 3295 8151 3301 8149 3302 8150
      3301 8151 3303 8151 3305 8154 3304 8156
      3305 8156

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
857 PM EDT THU JUL 11 2013

...FLASH FLOOD WATCH FOR ALL OF SOUTHEAST SOUTH CAROLINA AND
SOUTHEAST GEORGIA TONIGHT...

.SYNOPSIS...
BERMUDA HIGH PRESSURE WILL REMAIN OFFSHORE AS A WEAKENING COLD
FRONT APPROACHES THE REGION FROM THE NORTHWEST THROUGH FRIDAY.
THIS FRONT IS EXPECTED TO STALL OVER OR CLOSE TO THE REGION THIS
WEEKEND. HIGH PRESSURE WILL THEN GRADUALLY BUILD INTO THE AREA
THROUGH MID WEEK.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
UPDATED GRIDS/TEXT PRODUCTS TO INCREASE POPS FURTHER INLAND AND TO
EXPAND FLASH FLOOD WATCH TO THE COASTAL ZONES.

A PRONOUNCED MID-LEVEL CIRCULATION CAN BE SEEN ON KJGX RADAR AS
WELL AS VISIBLE SATELLITE LOOPS SOUTHEAST OF THE ATLANTA METRO
EARLY THIS EVENING. THIS FEATURE COUPLED WITH NUMEROUS MESOSCALE
BOUNDARY INTERACTIONS ARE SUPPORTING AN INCREASE IN SHOWERS AND
TSTMS ACROSS CENTRAL GEORGIA AS WELL AS THE MIDLANDS OF SOUTH
CAROLINA. ITS UNCLEAR HOW THE CONVECTIVE PATTERN WILL EVOLVE OVER
THE NEXT SEVERAL HOURS AS THIS FEATURE MEANDERS EAST AND INTERACTS
WITH AN INCREASINGLY MOIST ATMOSPHERE /PWATS FORECAST TO CLIMB TO
NEAR 2.3 INCHES AFTER MIDNIGHT/. WOULD NORMALLY THINK CONVECTION
WOULD BEGIN TO WANE AFTER SUNSET WITH THE LOSS OF INSOLATION...
WHICH IS STILL POSSIBLE...HOWEVER FORCING AHEAD OF THE
APPROACHING SHORTWAVE AND THE MID-LEVEL CIRCULATION WILL LIKELY
KEEP CONVECTION GOING FOR MUCH OF THE NIGHT...ESPECIALLY GIVEN HOW
TROPICAL THE RESIDENT AIRMASS IS ACROSS THE SOUTHEAST UNITED
STATES.

SEE THE HYDROLOGY SECTION BELOW CONCERNING THE POTENTIAL FOR
FLOODING.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/...
FRIDAY THROUGH SATURDAY...THE UPPER TROUGH WILL DOMINATE THE
WEATHER PATTERN ALONG THE EASTERN SEABOARD AS ITS ASSOCIATED COLD
FRONT NEARS AND THEN STALLS NEAR THE FORECAST AREA. THIS SETUP
WILL CONTINUE TO ALLOW PLENTY OF DEEP TROPICAL MOISTURE FROM BOTH
THE GULF AND THE ATLANTIC TO STREAM ACROSS THE SOUTHEAST. AS A
RESULT...PWATS WILL REMAIN BETWEEN 2.0 TO 2.3 INCHES THROUGH THIS
TIME PERIOD. THIS ABUNDANT MOISTURE IS EXPECTED TO LEAD TO AT
LEAST SCATTERED SHOWERS...ESPECIALLY DURING THE AFTERNOON HOURS.
IN FACT...MODELS CONTINUE TO HINT THAT CONVECTION COULD GET AN
EARLY START ON FRIDAY DUE TO PREVIOUS LATE NIGHT CONVECTION OVER
THE REGION LINGERING OR REIGNITING AFTER SUNRISE. AS TEMPERATURES
RISE INTO THE MID 80S AND INDISCREET BOUNDARIES INTERACT WITH THE
SEA BREEZE...CONDITIONS WILL BE FAVORABLE FOR CONVECTION TO
POTENTIALLY FLOURISH DURING BOTH AFTERNOON HOURS. ALTHOUGH MODELS
DO HINT AT SOME POCKETS OF INSTABILITY...OVERALL...INDICES REMAIN
LESS THAN IMPRESSIVE FOR SEVERE POTENTIAL BOTH AFTERNOONS.
THEREFORE...THE MAIN HAZARD REMAINS THE POTENTIAL FOR HEAVY
RAINFALL...WHICH COULD RESULT IN LOCALIZED FLOODING.

IN REGARDS TO TEMPERATURES...WILL CONTINUE TO UNDERCUT THICKNESS
VALUES DUE TO DECENT CLOUD COVERAGE ON BOTH FRIDAY AND SATURDAY.
OVERALL...TEMPERATURES WILL TOP OFF IN THE MID 80S.
STILL...OCCASIONAL BREAKS IN THE CLOUDS COULD ALLOW A FEW AREAS TO
CLIMB INTO THE UPPER 80S...ESPECIALLY FOR AREAS SOUTH OF INTERSTATE
16.

SATURDAY NIGHT INTO SUNDAY...THE UPPER TROUGH ALONG THE EASTERN
SEABOARD WILL RETROGRADE WESTWARD AS A LARGE WESTERN ATLANTIC UPPER
RIDGE BUILDS EASTWARD. DURING THIS TRANSITIONS...PWATS WILL BEGIN TO
SLOWLY DIMINISH AS THE BULK OF THE DEEPEST MOISTURE IS FORCED
INLAND. STILL...A PREVAILING ONSHORE FLOW WILL ALLOW FOR A
PROGRESSIVE SEA BREEZE...WHICH COULD STILL IGNITE SOME SCATTERED
CONVECTION ACROSS THE AREA SUNDAY AFTERNOON. IN ADDITION...IT
APPEARS THERE WILL BE A LITTLE MORE SUNSHINE SUNDAY...ALLOWING
TEMPERATURES TO CLIMB SLIGHTLY HIGHER THAN PREVIOUS DAYS. IN
ALL...EXPECT UPPER 80S WITH SOME AREAS REACHING 90 DEGREES.
LASTLY...OVERNIGHT LOWS WILL DIP INTO THE LOWER TO MID 70S EACH
NIGHT.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
EXPECT FAIRLY NORMAL SUMMERTIME CONDITIONS DURING THIS TIME PERIOD.
PERSISTENT ONSHORE DEEP ONSHORE FLOW WILL RESULT IN TEMPERATURES
SLIGHTLY BELOW NORMAL WITH HIGHS MAINLY NOT TOO FAR FROM 90 DEGREES.
LOWS WILL BE IN THE LOWER TO MID 70S AWAY FROM THE COAST. THE SEA
BREEZE WILL MAKE QUICK WESTWARD PROGRESS EACH DAY DURING THIS TIME
PERIOD...SO GENERALLY LOWER END CHANCE POPS WERE INCLUDED IN THE
FORECAST AS IT WOULD APPEAR THAT THE BEST CHANCE FOR SHOWERS AND
THUNDERSTORMS WOULD BE WEST OF OUR COUNTY WARNING AREA.

&&

.AVIATION /01Z FRIDAY THROUGH TUESDAY/...
VERY DIFFICULT FORECAST FOR THE NEXT 24 HOURS WITH THE PRIMARY
CONCERNS CENTERED ON CHANCES FOR SHOWERS/TSTMS. CURRENT ACTIVITY
DEVELOPING SOUTHWEST OF KSAV IS EXPECTED TO FOCUS WEST OF THE KSAV
TERMINAL OVER THE NEXT FEW HOURS. HOWEVER...MID-LEVEL CIRCULATION
SPINNING SOUTHEAST OF KATL WILL LIKELY ENHANCE CONVECTION OVER THE
NEXT FEW HOURS. ATTM OUR THINKING IS THAT THE BULK OF THE
OVERNIGHT CONVECTION WILL REMAIN WEST OF THE KCHS-KSAV
CORRIDOR...BUT IT MAY BE CLOSE. WILL OPT FOR A CONSERVATIVE
FORECAST RIGHT NOW KEEPING CONDITIONS VFR. NUMEROUS SHOWERS AND
TSTMS APPEAR LIKELY ON FRIDAY AS SHORTWAVE ENERGY BEGINS TO
INTERACT WITH A TROPICAL AIRMASS. IT IS NEARLY IMPOSSIBLE TO KNOW
WHEN DIRECT IMPACTS WILL AFFECT THE TERMINALS IN THIS TYPE OF
PATTERN SO WILL OPT FOR VCTS AT BOTH TERMINAL BEGINNING AT 14Z.
SUSPECT IMPACTS WILL OCCUR AT SOME POINT BETWEEN 12Z AND 00Z
TOMORROW...BUT CONFIDENCE IS NOT HIGH ENOUGH ON TIMING TO JUSTIFY
PREVAILING OR TEMPO TSRA CONDITIONS.

EXTENDED AVIATION OUTLOOK...AT LEAST MODERATE CHANCES FOR DIRECT
IMPACTS FROM MAINLY AFTERNOON/EVENING CONVECTION FRIDAY THROUGH
SATURDAY EVENING. LOW CHANCES FOR DIRECT IMPACTS SUNDAY THROUGH
TUESDAY.

&&

.MARINE...
LOW-LEVEL WINDS WILL INCREASE THIS EVENING AHEAD OF AN UPPER
TROUGH. WINDS WILL CAP OUT IN THE 15-20 KT RANGE BEYOND 20 NM FROM
THE COAST WITH SEAS BRIEFLY BUILDING AS HIGH AS 5 FT.

A COLD FRONT WILL APPROACH AND THEN STALL JUST WEST OF THE
COASTAL WATERS FRIDAY THROUGH SATURDAY. MARINE CONDITIONS ARE
EXPECTED TO REMAIN BELOW SCA CRITERIA THROUGH FRIDAY EVENING WITH
SOUTHERLY WINDS REMAINING 15 KNOTS OR LESS AND SEAS CAPPED AT 4
FEET. THEREAFTER...THE WESTERN ATLANTIC UPPER RIDGE WILL BEGIN TO
NUDGE ONSHORE...FORCING THE UPPER TROUGH TO RETROGRADE WESTWARD.
AT A RESULT...A TIGHTENING PRESSURE GRADIENT WILL RESULT IN A
SLIGHT INCREASE IN WIND SPEEDS. IN GENERAL...EXPECT SOUTH TO
SOUTHEASTERLY WINDS TO REMAIN AT OR BELOW 20 KNOTS. SWELL ENERGY
COMBINED WITH WIND WAVES COULD PRODUCE SOME 6 TO 7 FOOT SEAS
ACROSS AT LEAST SOME PORTIONS OF THE COASTAL WATERS SATURDAY
AFTERNOON AND SATURDAY NIGHT. RIGHT NOW IT APPEARS THAT THIS IS
MOST LIKELY IN AMZ350 AND AMZ374 AND SMALL CRAFT ADVISORIES FOR
ELEVATED SEAS MAY BE NEEDED. THEREAFTER...CONDITIONS WILL SUBSIDE
A BIT AS HIGH PRESSURE DOMINATES THE WEATHER PATTERN ACROSS THE
MARINE AREA.

&&

.HYDROLOGY...
CONVECTION CONTINUES TO LINE UP FROM THE SOUTH AND WEST. HAVE GONE
AHEAD AND EXPANDED THE FLASH FLOOD WATCH TO INCLUDE THE REMAINING
COASTAL ZONES FOR TONIGHT. WATCHING SAVANNAH CAREFULLY AS HEAVY
RAINS COULD FALL AROUND HIGH TIDE.

THERE IS AN INCREASING CONCERN FOR FLASH FLOODING OVERNIGHT...
ESPECIALLY THIS EVENING ACROSS INLAND AREAS. A NUMBER OF MESOSCALE
BOUNDARIES COUPLED WITH AN APPROACHING MID-LEVEL CIRCULATION WILL
LIKELY SUPPORT AREAS OF HEAVY RAIN. PWATS ARE FORECAST TO RISE TO
NEAR 2.3 INCHES BY MIDNIGHT WHICH WILL MAKE ANY CONVECTIVE
CLUSTERS EFFICIENT RAIN PRODUCERS. BASED ON BEHAVIOR OF TSTMS
EARLIER IN THE AFTERNOON...A QUICK 2-3 INCHES WILL BE POSSIBLE
WHERE CONVECTIVE TRAINING OCCURS...WHICH COULD EASILY SURPASS 1-HR
AND 3-HR FLASH FLOOD GUIDANCE. THE WATCH MAY NEED TO BE EXTENDED
INTO THE DAY FRIDAY.

LONG DURATION RIVER FLOODING WILL PERSIST ACROSS THE MAIN RIVERS
OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA. SIGNIFICANT
UPSTREAM RELEASES FROM LAKE THURMOND WILL KEEP THE SAVANNAH RIVER
ESPECIALLY HIGH. MORE SIGNIFICANT RIVER FLOODING WILL BE POSSIBLE
OVER THE WEEKEND SHOULD HEAVY RAIN FALL OVER AND UPSTREAM OF THE
AREA.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...FLASH FLOOD WATCH UNTIL 5 AM EDT FRIDAY FOR GAZ087-088-099>101-
     114>119-137>141.
SC...FLASH FLOOD WATCH UNTIL 5 AM EDT FRIDAY FOR SCZ040-042>045-
     047>052.
MARINE...NONE.

&&

ST

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
900 PM EDT THU JUL 11 2013

AMZ330-350-352-354-374-130100-
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-
900 PM EDT THU JUL 11 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-130100-
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-
900 PM EDT THU JUL 11 2013

...FLASH FLOOD WATCH IN EFFECT UNTIL 5 AM EDT FRIDAY...

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

.DAY ONE...TONIGHT.

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

   FLASH FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

FLOODING...SCATTERED TO NUMEROUS AFTERNOON AND EVENING SHOWERS
AND THUNDERSTORMS WILL BE LIKELY ACROSS THE AREA FRIDAY THROUGH
SATURDAY EVENING. A COLD FRONT THAT IS EXPECTED TO APPROACH AND
THEN STALL NEAR THE AREA MAY PROVIDE A FOCUS FOR HEAVY RAINFALL.
IF HEAVY RAINFALL DEVELOPS OVER AREAS THAT HAVE ALREADY RECEIVED
RECEIVED RAIN....FLASH FLOODING WOULD BE POSSIBLE. A FLASH FLOOD
WATCH MAY BE NEEDED FOR ALL OR PORTIONS OF THE AREA. IN
ADDITION...RIVER FLOODING WILL PERSIST ACROSS MANY OF THE MAIN
RIVERS IN SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA.

.SPOTTER INFORMATION STATEMENT...

PLEASE RELAY ANY REPORTS OF HAZARDOUS WEATHER INCLUDING...BUT NOT
LIMITED TO LARGE HAIL...DAMAGING WINDS...AND FLOODING TO THE
NATIONAL WEATHER SERVICE IN CHARLESTON AT 1-888-383-2024.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
348 PM EDT THU JUL 11 2013

SCZ045-112030-
INLAND BERKELEY-
348 PM EDT THU JUL 11 2013

...MARINERS ON LAKE MOULTRIE SHOULD SEEK SAFE HARBOR...

AT 346 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SHOWERS AND THUNDERSTORMS DEVELOPING AROUND LAKE MOULTRIE. THESE
STORMS WILL CONTINUE TO INTENSIFY AND BECOME MORE SCATTERED ACROSS
THE LAKE THROUGH 430 PM.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 25 TO 30 KNOTS...
CLOUD TO WATER LIGHTNING...
HEAVY RAINFALL PRODUCING VISIBILITIES LESS THAN 1 NM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS ARE EXPECTED TO IMPACT LAKE MOULTRIE. 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 3333 8014 3339 8008 3339 8000 3332 7997
      3325 7999 3320 8004 3326 8010 3329 8015
TIME...MOT...LOC 1947Z 220DEG 4KT 3324 8005

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
912 PM EDT THU JUL 11 2013

SCZ045-120145-
INLAND BERKELEY-
912 PM EDT THU JUL 11 2013

...MARINERS ON EASTERN LAKE MARION SHOULD SEEK SAFE HARBOR...

AT 910 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
THUNDERSTORMS...ALONG A LINE EXTENDING FROM 14 MILES NORTH OF
EASTERN LAKE MARION TO 7 MILES WEST OF EASTERN LAKE MARION...MOVING
EAST AT 20 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 25 TO 30 KNOTS...
CLOUD TO WATER LIGHTNING...
HEAVY RAINFALL PRODUCING VISIBILITIES LESS THAN 1 NM...

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 3340 8015 3339 8023 3345 8022 3345 8021
      3346 8021 3346 8020 3345 8020 3346 8018
      3345 8017 3346 8017
TIME...MOT...LOC 0111Z 276DEG 15KT 3363 8012 3344 8031