Severe Thunderstorm Warning 239, NWS Charleston, SC

248 
WWUS52 KCHS 212115
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
515 PM EDT SUN AUG 21 2011

GAC029-051-212200-
/O.CON.KCHS.SV.W.0239.000000T0000Z-110821T2200Z/
BRYAN GA-CHATHAM GA-
515 PM EDT SUN AUG 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR WEST CENTRAL CHATHAM AND CENTRAL BRYAN COUNTIES...

AT 514 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR
DANIEL...OR ABOUT 7 MILES WEST OF RICHMOND HILL...MOVING SOUTH AT 10
MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...DANIEL 
AND RICHMOND HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS
IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM
ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER...
YOU ARE WITHIN STRIKING DISTANCE.

TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE 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 3183 8134 3186 8136 3194 8141 3195 8146
      3197 8147 3197 8152 3209 8142 3197 8119
      3182 8131
TIME...MOT...LOC 2115Z 348DEG 10KT 3195 8141

$$


33

918 
WWUS52 KCHS 212126
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
526 PM EDT SUN AUG 21 2011

GAC029-051-212200-
/O.CON.KCHS.SV.W.0239.000000T0000Z-110821T2200Z/
BRYAN GA-CHATHAM GA-
526 PM EDT SUN AUG 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR WEST CENTRAL CHATHAM AND CENTRAL BRYAN COUNTIES...

AT 522 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM RICHMOND HILL TO 7 MILES NORTHWEST OF
DANIEL...OR ALONG A LINE EXTENDING FROM RICHMOND HILL TO 9 MILES WEST
OF RICHMOND HILL...MOVING SOUTH AT 10 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...DANIEL 
AND RICHMOND HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS
IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM
ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER...
YOU ARE WITHIN STRIKING DISTANCE.

&&

LAT...LON 3194 8141 3194 8142 3197 8147 3197 8152
      3206 8139 3197 8119 3185 8130 3184 8133
      3184 8134 3183 8134
TIME...MOT...LOC 2126Z 348DEG 10KT 3195 8131 3195 8146

$$


33

848 
WWUS52 KCHS 212131
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
531 PM EDT SUN AUG 21 2011

GAC051-212142-
/O.CAN.KCHS.SV.W.0239.000000T0000Z-110821T2200Z/
CHATHAM GA-
531 PM EDT SUN AUG 21 2011

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL CHATHAM COUNTY
HAS BEEN CANCELLED...

LAT...LON 3183 8134 3194 8140 3194 8142 3197 8147
      3197 8149 3198 8149 3203 8138 3191 8126
      3190 8126 3185 8130 3184 8134
TIME...MOT...LOC 2132Z 348DEG 10KT 3191 8129 3195 8144

$$

GAC029-212200-
/O.CON.KCHS.SV.W.0239.000000T0000Z-110821T2200Z/
BRYAN GA-
531 PM EDT SUN AUG 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL BRYAN COUNTY...

AT 530 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM PORT ROYAL TO DANIEL...OR ALONG A LINE
EXTENDING FROM RICHMOND HILL TO 8 MILES WEST OF RICHMOND HILL...
MOVING SOUTH AT 10 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS
IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM
ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER...
YOU ARE WITHIN STRIKING DISTANCE.

TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE 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 3183 8134 3194 8140 3194 8142 3197 8147
      3197 8149 3198 8149 3203 8138 3191 8126
      3190 8126 3185 8130 3184 8134
TIME...MOT...LOC 2132Z 348DEG 10KT 3191 8129 3195 8144

$$


33

677 
WWUS52 KCHS 212143
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
543 PM EDT SUN AUG 21 2011

GAC029-212200-
/O.CON.KCHS.SV.W.0239.000000T0000Z-110821T2200Z/
BRYAN GA-
543 PM EDT SUN AUG 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL BRYAN COUNTY...

AT 538 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR
DANIEL...OR ABOUT OVER RICHMOND HILL...MOVING SOUTH AT 10 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE....
DANIEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS
IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM
ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER...
YOU ARE WITHIN STRIKING DISTANCE.

TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE 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 3183 8134 3194 8140 3194 8134 3191 8127
      3190 8126 3185 8130 3184 8134
TIME...MOT...LOC 2143Z 348DEG 10KT 3190 8136

$$


33

578 
WWUS52 KCHS 212147
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
547 PM EDT SUN AUG 21 2011

GAC029-212158-
/O.CAN.KCHS.SV.W.0239.000000T0000Z-110821T2200Z/
BRYAN GA-
547 PM EDT SUN AUG 21 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BRYAN COUNTY HAS BEEN
CANCELLED...

AT 546 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED
THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELED.

ALTHOUGH THE IMMEDIATE THREAT FOR DAMAGING WINDS AND LARGE HAIL HAS
ENDED...THUNDERSTORMS ARE STILL PRODUCING FREQUENT CLOUD TO GROUND
LIGHTNING STRIKES. THE SAFEST COURSE OF ACTION IS TO REMAIN INDOORS
UNTIL THE STORMS HAVE PASSED.

TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE 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 3183 8134 3194 8140 3194 8134 3191 8127
      3190 8126 3185 8130 3184 8134
TIME...MOT...LOC 2148Z 347DEG 11KT 3188 8135

$$


33

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
355 PM EDT SUN AUG 21 2011

.SYNOPSIS...
HIGH PRESSURE WILL GIVE WAY TO A COLD FRONT FROM THE NW LATE MONDAY.
THE FRONT WILL STALL OVER OR NEAR THE AREA TUESDAY...THEN DISSIPATE
WEDNESDAY AS HIGH PRESSURE BUILDS FROM THE NORTH. TROPICAL CYCLONE
IRENE MAY HAVE AN IMPACT ON THE AREA LATE IN THE WEEK.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
SCATTERED CONVECTION SHOULD CONTINUE THROUGH THE EVENING WITH A
DECENT STRENGTH SHORTWAVE FOR AUGUST PASSING BY TO THE NORTH. BEST
COVERAGE WILL BE INLAND FOR THE NEXT FEW HOURS BEFORE DAYTIME
HEATING ENDS AND INSTABILITY DECREASES DRAMATICALLY. I DO EXPECT
SOME WIDELY SCATTERED ACTIVITY TO CONTINUE UNTIL MIDNIGHT OR SHORTLY
AFTER DUE TO THE UPPER LEVEL SUPPORT...BUT MOST OF IT SHOULD WIND
DOWN AFTER 2 AM. THE EXCEPTION MAY BE RIGHT ALONG THE BEACHES OF
SOUTH CAROLINA AS THE LAND BREEZE CONVERGENCE LINE WILL BE JUST
OFFSHORE NEAR SUNRISE. LOW TEMPS SHOULD BE SEASONABLY MILD IN THE
70S...LOWER AS ONE MOVES INLAND.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH WEDNESDAY/...
MONDAY...THE PERSISTENT MID AND UPPER TROUGH OVER THE EASTERN
SEABOARD BEGINS TO PUSH EAST INTO THE ATLANTIC...AS THE ANTICYCLONE
ALOFT REMAINS ANCHORED OVER THE SOUTHERN PLAINS...STRETCHING EAST-SE
TO FLORIDA. ONE SHORT WAVE EMBEDDED WITHIN THE WEST-NW FLOW ALOFT
OVER OUR AREA SHIFTS EAST INTO THE ATLANTIC DURING THE EARLY
MORNING...WITH NVA TO FOLLOW FOR MUCH OF THE DAY. HOWEVER...ANOTHER
WEAK SHORT WAVE WILL MOVE IN LATE IN THE DAY AND PUSHES THROUGH
EARLY MONDAY NIGHT. AT THE SAME TIME A COLD FRONT WILL SHIFT TOWARD
THE AREA FROM THE NW DURING THE AFTERNOON/EVENING...AND THE SET UP
IS IN PLACE FOR SOME STRONG TO SEVERE THUNDERSTORMS TO DEVELOP
AND/OR ADVECT IN.

FORCING WILL BE ENHANCED DURING THE MID/LATE AFTERNOON INTO THE
EVENING AS AN UPPER LEVEL JET PUSHES IN FROM THE OH/TN
VALLEYS...RESULTING IN SOME DECENT DIVERGENCE ALOFT. PLUS THERE IS
SUFFICIENT LOW LEVEL FORCING FROM NOT ONLY THE SEA BREEZE...BUT ALSO
THE NEARBY FRONT AND VARIOUS OUTFLOWS THAT FORM AS CONVECTION GETS
GOING. OUR CONVECTIVE TEMPS ARE IN THE LOWER 90S...SO LOOK FOR AN
EARLY AFTERNOON START TO ACTIVITY...WHICH WILL ONLY INCREASE IN
COVERAGE AS POSSIBLE CONSOLIDATION OF CONVECTION DEVELOPS UPSTREAM
WITHIN THE WEST-NW FLOW ALOFT. ALTHOUGH OUR MID LEVEL LAPSE RATES
ARE WEAK...LOW LEVEL LAPSE RATES ARE QUITE IMPRESSIVE AND MANY
THERMODYNAMIC PARAMETERS ARE QUITE FAVORABLE. FOR INSTANCE...SBCAPES
ARE AS HIGH AS 2500-3500 J/KG...MUCAPES ARE OVER 4000 J/KG...LIFTED
INDICES ARE AS LOW AS -6/-7. WITH 0-6 KM BULK SHEAR AS MUCH AS 25-30
KT THERE COULD BE SOME CLUSTERS OF STORMS THAT ALSO
DEVELOP...ESPECIALLY AS INTERACTIONS OF BOUNDARIES TAKES PLACE. THE
MAIN WEATHER HAZARD WOULD BE DAMAGING DOWNBURSTS OF WIND WITH DCAPES
AS MUCH AS 1200-1400 J/KG...GIVEN THE DRY AIR ABOUT 12K FEET.
CONFIDENCE/PROBABILITIES ARE HIGH ENOUGH TO ADD TO THE HAZARDOUS
WEATHER OUTLOOK...ALTHOUGH AN ORGANIZED SEVERE WEATHER EVENT IS NOT
EXPECTED AT THIS TIME.

WE/LL SHOW COVERAGE INCREASING TO THE 40-50 PERCENT RANGE DURING THE
MID/LATE AFTERNOON...WITH CONVECTION TO LIKELY CONTINUE THROUGH
LATE EVENING GIVEN SUPPORT FROM DYNAMICS ALOFT AND FURTHER AIDED BY
A 20-25 KT LOW LEVEL JET THAT SCRAPS THE AREA TO THE SOUTH.

COMPRESSIONAL HEATING AHEAD OF THE FRONT AND 850 MB TEMPS THAT ARE
19-20C WILL SUPPORT MAX TEMPS MONDAY IN THE LOWER AND MIDDLE 90S
AWAY FROM THE BEACHES. HOURLY GRIDS WILL NEED TO BE ADJUSTED AT A
LATER TIME AS RAIN-COOLED AIR DEVELOPS...BUT THAT WILL HELP IN
DROPPING MIN TEMPS MONDAY NIGHT DOWN INTO THE LOWER AND MIDDLE 70S.

TUESDAY...THE TROUGH ALOFT REMAINS JUST OFFSHORE...BUT SOLID NVA
PREVAILS THROUGH MUCH OF THE DAY AS A SHORT WAVE EXITS THE AREA
BEFORE DAYBREAK. THE COLD FRONT MEANWHILE SAGS INTO THE CENTRAL OR
SOUTHERN CWFA...WITH QUITE A BIT OF DRIER AIR TO MOVE IN FROM THE
NORTH BEHIND THE FRONT. HOWEVER...THERMODYNAMIC PROFILE AND
SUFFICIENT LOW LEVEL MOISTURE POINTS TO 20-30 POPS...HIGHEST SOUTH
OF I-16 IN SE GA WHERE INTERACTION OF SEA BREEZE WILL COME INTO
PLAY. 850 MB TEMPS DROP DOWN TO 17-18C...AND WITH AN EAST TO NE
SYNOPTIC FLOW DEVELOPING IN WAKE OF THE FRONT WE ARE LOOKING AT
LOWER TEMPS. UPPER 80S TO AROUND 90 NORTH...BUT STILL SOME LOWER AND
PERHAPS MID 90S SOUTH.

WEDNESDAY...THIS APPEARS TO BE A PIVOTAL DAY IN REGARDS TO
IRENE...AS A SHORT WAVE NOW IN THE CANADIAN ROCKIES LOOKS TO DROP
INTO THE TROUGH OVER OR NEAR THE EAST COAST. IF THIS WERE TO OCCUR
IT MIGHT KEEP THE TROUGH IN THE AREA LONGER...WHICH IN TURN COULD
PULL IRENE MORE NORTH AND QUICKER. MANY OF THE MODEL GUIDANCE IS
SUPPORTIVE OF THIS IDEA WITH SOME INDICATIONS THAT IRENE COULD STAY
OVER THE ATLANTIC. THIS MAY BE OPTIMISTIC...BUT IS CERTAINLY A
POSSIBILITY. STILL...YOU ARE STRONGLY ADVISED TO REFER TO THE
NATIONAL HURRICANE CENTER FOR THE LATEST INFORMATION ON IRENE.

FOR OUR AREA WEDNESDAY...THE COLD FRONT WASHES OUT AN LOW LEVEL
MOISTURE AND CONVERGENCE FROM THE ATLANTIC SHOULD EB ENOUGH TO
SUPPORT 20-30 POPS. MAX TEMPS WILL BE HELD DOWN WITH THE ONSHORE
SYNOPTIC FLOW...UPPER 80S NORTH AND LOWER 90S SOUTH.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
MUCH OF THE EXTENDED FORECAST WILL BE HIGHLY DEPENDENT ON THE
DEVELOPMENT AND PROGRESSION OF TROPICAL CYCLONE IRENE. ALTHOUGH
NUMERICAL MODELS HAVE BEEN FAIRLY CONSISTENT IN TRACKING THE
SYSTEM TOWARD THE FLORIDA AND/OR SOUTHEAST COAST...THERE REMAINS
CONSIDERABLE UNCERTAINTY REGARDING THE EVOLUTION OF THIS SYSTEM.
THUS WE PREFER TO REMAIN RATHER GENERIC REGARDING PRECIPITATION
POTENTIAL AND HAVE INDICATED SOLID RAIN CHANCES IN THE 30 TO 40
PERCENT RANGE THROUGH THE LATE WEEK AND WEEKEND PERIOD. WILL
FORECAST HIGH TEMPERATURES RIGHT AROUND SEASONAL NORMALS IN THE
UPPER 80S TO LOWER 90S.

IT IS RECOMMENDED THAT ALL RESIDENTS AND VISITORS OF SOUTHEAST SOUTH
CAROLINA AND SOUTHEAST GEORGIA CONTINUE TO MONITOR FORECASTS FROM
THE NATIONAL HURRICANE CENTER REGARDING TROPICAL CYCLONE IRENE.

&&

.AVIATION /20Z SUNDAY THROUGH FRIDAY/...
VFR FORECAST THROUGH TONIGHT. SCATTERED TSTMS ARE POSSIBLE THIS
AFTERNOON AND EVENING WHICH COULD IMPACT BOTH THE KCHS AND KSAV
TERMINALS BUT CONFIDENCE IS TOO LOW TO FORECAST A DIRECT HIT AT
ONE OF THE TERMINALS. WILL KEEP AN WATCHFUL EYE.

EXTENDED AVIATION OUTLOOK...SHOWERS AND THUNDERSTORMS COULD
BRIEFLY REDUCE VSBYS AND/OR CIGS EACH AFTERNOON/EVENING THIS
WEEK. BREEZY CONDITIONS ARE POSSIBLE LATER IN THE WEEK CONSIDERING
POTENTIAL IMPACTS FROM TROPICAL CYCLONE IRENE.

&&

.MARINE...
WINDS AND SEAS MAY PICK UP JUST A BIT TONIGHT AS PRESSURE
GRADIENT INCREASES A TAD AHEAD OF THE COLD FRONT MOVING TOWARD THE
REGION FOR EARLY IN THE WEEK.

MONDAY WILL BE THE LAST DAY WITH SOUTH AND SW WINDS FOR AWHILE...AS
THE SUB TROPICAL ATLANTIC RIDGE GIVES WAY TO A COLD FRONT FROM THE
NW. LINGERING NOCTURNAL SURGE WILL BE WANING EARLY MONDAY...SO
SPEEDS WILL GENERALLY DROP TO 15 KT OR LESS BY MID MORNING. SEAS
WILL BE A MIX OF SMALL SWELLS AND SMALL WIND WAVES...BUT NO MORE
THAN 3 OR 4 FT.

WINDS WILL STEADILY SHIFT AROUND TO THE NE AND EAST AS THE COLD
FRONT DROPS INTO THE AREA MONDAY NIGHT/TUESDAY...AND THERE ARE SOME
INDICATIONS THAT AS HIGH PRESSURE BUILDS TO THE NORTH THERE COULD BE
SOME MODEST PINCHING OVER THE AMZ350 WATERS. EVEN SO...CONDITIONS DO
LOOK TO REMAIN BELOW ANY SCA CRITERIA THROUGH TUESDAY.

THE FRONT WILL DISSIPATE WEDNESDAY AS HIGH PRESSURE TO THE NORTH
TEMPORARILY SPREADS ACROSS THE WATERS. THIS KEEPS AN EASTERLY FLOW
IN PLACE AT LESS THAN 15 KT...ALTHOUGH SEAS MAY SLOWLY BEGIN TO
BUILD WITH THE LONG DURATION ONSHORE FETCH.

FOR LATE IN THE WEEK THERE ARE POTENTIAL IMPACTS FROM IRENE...BUT
THERE IS TOO MUCH UNCERTAINTY REGARDING HER STRENGTH AND HER TRACK
WE HAVE OPTED TO CAP WINDS AT 25 OR 30 KT AND SEAS NO MORE THAN
6-8 FEET. BUT THIS COULD CHANGE CONSIDERABLY IN LATER FORECASTS.
MARINERS ARE ADVISED THAT SCA/S...GALES OR EVEN TROPICAL HEADLINES
COULD BE REQUIRED LATER IN THE WEEK. ALL MARINERS ARE THUS
STRONGLY ADVISED TO CONTINUE TO MONITOR THE PROGRESS OF IRENE FROM
ADVISORIES ISSUED BY NHC.

MARINERS ARE ALSO ADVISED THAT WITH A WESTERLY STEERING FLOW THERE
COULD BE SOME STRONG TO SEVERE STORMS THAT IMPACT THE MARINE AREA
FROM OFF THE LAND AREAS LATE MONDAY INTO MONDAY NIGHT. DAMAGING
WINDS AND FREQUENT LIGHTNING STRIKES ARE POSSIBLE.

&&

.TIDES/COASTAL FLOODING...
ASTRONOMICAL HIGH TIDES WILL DEVELOP ACROSS THE AREA LATE THIS
WEEK...AND DEPENDENT UPON WHAT IF ANY IMPACTS WE RECEIVE FROM IRENE
THERE MAY BE SOME COASTAL FLOODING AND BEACH EROSION CONCERNS
BEGINNING FRIDAY.

RIP CURRENTS...SWELLS FROM IRENE COULD ARRIVE AS EARLY AS
MID-WEEK...AND CONTINUE FOR SEVERAL DAYS. THIS WILL RESULT IN AN
ENHANCED RISK OF RIP CURRENTS.

&&

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

&&

07/33

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
409 PM EDT SUN AUG 21 2011

GAZ087-088-099>101-114>116-118-137-138-140-SCZ040-042>045-047-052-
222015-
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-
409 PM EDT SUN AUG 21 2011

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THROUGH THIS EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS WILL
CONTINUE ACROSS MUCH OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST
GEORGIA THROUGH THIS EVENING. A FEW THUNDERSTORMS COULD BECOME
SEVERE WITH DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOP ACROSS MUCH OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST
GEORGIA MONDAY AFTERNOON AND EVENING. A FEW THUNDERSTORMS COULD
BECOME SEVERE WITH DAMAGING WINDS AND POSSIBLY LARGE HAIL. THE
RISK FOR SEVERE WEATHER WILL BE GREATEST BETWEEN 3 PM AND 10 PM.

TROPICS...TROPICAL STORM IRENE IS EXPECTED TO MOVE WEST/NORTHWEST
FOR THE NEXT SEVERAL DAYS AND POSSIBLY IMPACT PORTIONS OF THE
SOUTHEAST UNITED STATES BY THE END OF THE WEEK. WHILE ITS TOO SOON
TO SAY WHETHER IRENE WILL DIRECTLY IMPACT THE REGION...PEOPLE
ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA SHOULD
CONTINUE TO CAREFULLY MONITOR THE PROGRESS OF THIS STORM
THROUGHOUT THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.

GAZ117-119-139-141-SCZ048>051-222015-
COASTAL BRYAN-COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH-
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
409 PM EDT SUN AUG 21 2011

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THROUGH THIS EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS WILL
CONTINUE ACROSS MUCH OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST
GEORGIA THROUGH THIS EVENING. A FEW THUNDERSTORMS COULD BECOME
SEVERE WITH DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOP ACROSS MUCH OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST
GEORGIA MONDAY AFTERNOON AND EVENING. A FEW THUNDERSTORMS COULD
BECOME SEVERE WITH DAMAGING WINDS AND POSSIBLY LARGE HAIL. THE
RISK FOR SEVERE WEATHER WILL BE GREATEST BETWEEN 3 PM AND 10 PM.

RIP CURRENTS...SWELLS BEING GENERATED BY TROPICAL STORM IRENE
COULD BEGIN TO IMPACT THE BEACHES BY MID-WEEK. THIS WILL RESULT IN
AN ELEVATED RISK FOR RIP CURRENTS.

TROPICS...TROPICAL STORM IRENE IS EXPECTED TO MOVE WEST/NORTHWEST
FOR THE NEXT SEVERAL DAYS AND POSSIBLY IMPACT PORTIONS OF THE
SOUTHEAST UNITED STATES BY THE END OF THE WEEK. WHILE ITS TOO SOON
TO SAY WHETHER IRENE WILL DIRECTLY IMPACT THE REGION...PEOPLE
ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA SHOULD
CONTINUE TO CAREFULLY MONITOR THE PROGRESS OF THIS STORM
THROUGHOUT THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.

AMZ330-350-352-354-374-222015-
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-
409 PM EDT SUN AUG 21 2011

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THROUGH THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS...A FEW THUNDERSTORMS COULD MOVE INTO THE
COASTAL WATERS FROM OFF LAND AREAS THIS EVENING...POSSIBLY
RESULTING IN DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOP ACROSS MUCH OF SOUTHEAST SOUTH CAROLINA AND SOUTHEAST
GEORGIA MONDAY AFTERNOON AND EVENING. A FEW THUNDERSTORMS MAY MOVE
INTO THE COASTAL WATERS AND THEY COULD BECOME SEVERE WITH DAMAGING
WINDS. THE RISK FOR SEVERE WEATHER WILL BE GREATEST BETWEEN 4 PM
AND 11 PM.

TROPICS...TROPICAL STORM IRENE IS EXPECTED TO MOVE WEST/NORTHWEST
FOR THE NEXT SEVERAL DAYS AND POSSIBLY IMPACT PORTIONS OF THE
SOUTHEAST UNITED STATES BY THE END OF THE WEEK. WHILE ITS TOO SOON
TO SAY WHETHER IRENE WILL DIRECTLY IMPACT THE REGION...PEOPLE
ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA SHOULD
CONTINUE TO CAREFULLY MONITOR THE PROGRESS OF THIS STORM
THROUGHOUT THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.

33

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
209 PM EDT SUN AUG 21 2011

GAZ088-099>101-114-115-SCZ042-211900-
BULLOCH-CANDLER-EFFINGHAM-EVANS-HAMPTON-SCREVEN-TATTNALL-
209 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF TATTNALL...SCREVEN...
EVANS...BULLOCH...CANDLER...EFFINGHAM AND HAMPTON COUNTIES THROUGH
300 PM EDT...

AT 207 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...SCATTERED ALONG A LINE EXTENDING FROM
SYLVANIA TO WESTSIDE...MOVING EAST AT 15 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
ALTMAN...BELLVILLE...BROOKLET...CAPTOLO...CLAXTON...COLLINS...
DAISY...DENMARK...DOVER...EGYPT...GEORGIA SOUTHERN...GLENNVILLE...
GORDONIA ALTAMAHA STATE PARK...HAGAN...HOPEULIKIT...HUNTERS...
KILDARE...LEEFIELD...MANASSAS...MENDES...MIDDLEGROUND...MIDWAY...
NEVILS...NEWINGTON...OLIVER...PULASKI...REGISTER...REIDSVILLE...
STATESBORO...STILSON...SYLVANIA...WESTSIDE...ESTILL...LENA...LURAY...
SCOTIA AND SHIRLEY...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
STRONG WINDS OF 45 TO 55 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

WINDS HAVE ALREADY GUSTED TO 46 MPH THIS AFTERNOON WITH A
THUNDERSTORM NEAR SYLVANIA. WINDS OF THIS STRENGTH COULD CAUS
LIGHT...LOOSE ITEMS SUCH AS SMALL BRANCHES TO BLOW AROUND AND
POTENTIALLY STRIKE OTHER OBJECTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED TALL OBJECTS. IF INDOORS...STAY
AWAY FROM WINDOWS AND DOORS. AVOID USING PLUMBING AND ELECTRICAL
APPLIANCES UNLESS IT IS AN EMERGENCY.

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 3217 8219 3282 8165 3282 8142 3277 8142
      3277 8143 3274 8140 3283 8128 3283 8109
      3217 8169 3215 8178 3210 8175 3182 8201
      3184 8209 3188 8212 3191 8223
TIME...MOT...LOC 1808Z 261DEG 15KT 3277 8161 3248 8194

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
303 PM EDT SUN AUG 21 2011

GAZ100-114>116-137-138-211930-
BULLOCH-EVANS-INLAND BRYAN-INLAND LIBERTY-LONG-TATTNALL-
303 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF TATTNALL...EVANS...
BULLOCH...LIBERTY...BRYAN AND LONG COUNTIES THROUGH 330 PM EDT...

AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM CLAXTON EVANS
COUNTY AIRPORT TO MENDES...MOVING EAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BELLVILLE...CLAXTON...DAISY...GROVELAND...HAGAN...MENDES AND
MIDWAY...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
STRONG WINDS OF 45 TO 55 MPH...

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 3220 8162 3192 8183 3199 8208 3228 8190
TIME...MOT...LOC 1904Z 285DEG 7KT 3218 8185 3204 8197

33

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
316 PM EDT SUN AUG 21 2011

GAZ088-211945-
SCREVEN-
316 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SCREVEN COUNTY
THROUGH 345 PM EDT...

AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR HILLTONIA...MOVING EAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
HILLTONIA AND MILLHAVEN...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...
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 3282 8179 3283 8178 3288 8178 3288 8177
      3291 8177 3301 8160 3301 8159 3276 8154
      3278 8179
TIME...MOT...LOC 1916Z 261DEG 7KT 3289 8167

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
341 PM EDT SUN AUG 21 2011

GAZ100-116-212015-
BULLOCH-INLAND BRYAN-
341 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BULLOCH AND BRYAN
COUNTIES THROUGH 415 PM EDT...

AT 336 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR REKA...MOVING EAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BAY...BLITCHTON...DENMARK...ELLABELL...GROVELAND...LANIER...NEVILS...
PEMBROKE AND STILSON...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...
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 3230 8179 3235 8149 3231 8145 3222 8143
      3221 8141 3212 8141 3210 8139 3206 8138
      3207 8168 3209 8170 3210 8175 3212 8177
TIME...MOT...LOC 1941Z 278DEG 11KT 3220 8165

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
437 PM EDT SUN AUG 21 2011

GAZ114-137-212115-
LONG-TATTNALL-
437 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF TATTNALL AND LONG
COUNTIES THROUGH 515 PM EDT...

AT 433 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...6 MILES SOUTHWEST OF FIVE POINTS...MOVING
NORTHEAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
DONALD...FIVE POINTS...GLENNVILLE...MENDES AND MIDWAY...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
STRONG WINDS OF 45 TO 55 MPH...

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 3205 8190 3182 8174 3177 8195 3178 8196
      3178 8198 3181 8202 3182 8205 3186 8211
      3188 8212 3190 8215 3190 8219
TIME...MOT...LOC 2037Z 244DEG 10KT 3185 8207

33

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
445 PM EDT SUN AUG 21 2011

GAZ116-118-212115-
INLAND BRYAN-INLAND CHATHAM-
445 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN AND CHATHAM
COUNTIES THROUGH 515 PM EDT...

AT 441 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...7 MILES NORTH OF DANIEL...MOVING EAST AT 10
MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
I-16/I-95 INTERCHANGE...KELLER AND RICHMOND HILL...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
STRONG WINDS OF 45 TO 55 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED TALL OBJECTS. IF INDOORS...STAY
AWAY FROM WINDOWS AND DOORS. AVOID USING PLUMBING AND ELECTRICAL
APPLIANCES UNLESS IT IS AN EMERGENCY.

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 3192 8141 3193 8140 3194 8141 3194 8144
      3197 8147 3198 8148 3211 8144 3211 8114
      3181 8126
TIME...MOT...LOC 2045Z 290DEG 7KT 3201 8139

33