000 
FXUS62 KCHS 271939 CCA
AFDCHS

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE CHARLESTON SC
339 PM EDT WED AUG 27 2003

CORRECTED TO INCLUDE HEAT ADVISORY FOR THIS EVENING TO WWA LINES.

.PUBLIC...
NOT A LOT OF CHANGE OVER THE NEXT 24 HOURS. BERMUDA HIGH PRES WELL 
ENTRENCHED OVER THE SE CONUS WILL KEEP ABOVE NORMAL TEMPS AND HIGH 
HUMIDITY LEVELS OVER THE AREA. CRITERIA WAS BARELY REACHED FOR HEAT 
ADVISORY LEVELS TODAY AND WITH TEMPS SLIGHTLY ON THE DECLINE TMRW 
AND GRADUALLY FALLING THRU THE END OF THE WEEK... WILL NOT EXTEND 
THE ADVISORY PAST TODAY. BASED ON 19-20Z OBS...I WILL LET THE 
ADVISORY FOR TODAY EXPIRE SINCE ONLY ISOLATED AREAS HAVE REACHED 105 
FOR HEAT INDEX VALUES. FOR TMRW WITH TEMPS SLIGHTLY COOLER BUT 
EQUIVALENT DEWPOINTS...THE ISSUE MAY BE ADDRESSED IN A SPS BUT WILL 
LEAVE FOR FOLLOWING SHIFTS TO DETERMINE THAT. WILL INCLUDE LINE IN 
ZONE TEXT FOR TMRW FOR HEAT INDEX VALUES OF 100-105. AS FOR SENSIBLE 
WX...ATMOS IS RATHER UNSTABLE BUT IS ALSO WELL CAPPED...SO IF ANY 
TSTMS DO DECIDE TO FIRE THIS PM THEY WILL BE ISOLATED. WILL KEEP ALL 
ZONES DRY THRU TMRW NIGHT. WILL ADD SLGT CHC POPS FOR MY SOUTHERN GA 
COUNTIES FRI AS A SMALL VORT OVER S GA/N FL WILL RUN BETWEEN JAX/SAV 
AND WITH PLENTY OF MOISTURE IN THE ATMOS...IT MAY BE JUST ENOUGH TO 
SPARK OFF MORE THAN AN ISOLATED TSTM. XPCT SC COUNTIES TO REMAIN DRY 
THRU FRI NIGHT. WILL KEEP MENTION OF MAINLY PM SHWRS/TSTMS IN THE 
FORECAST THRU THE WEEKEND INTO EARLY NEXT WEEK AS BERMUDA HIGH BACKS 
OFF AND A FRONT APPROACHES THE AREA FROM THE NW BUT WILL STALL OUT 
BEFORE MOVING THRU. TEMPS TO SLOWLY FALL BACK TO NORMAL LEVELS BY 
THE END OF THE WEEK.

.MARINE...NOT MUCH CHANGE TO PREVIOUS FCST. SWLY FLOW TO RETURN 
TONIGHT THEN SHIFT TO S TO SERLY ON THU. EVEN LESS OF A DIURNAL 
CHANGE FOR FRI. AS HIGH PRES OFF THE COAST SLOWLY MOVES N...WINDS 
OVER THE WATERS WILL BECOME MORE E TO SE MAINLY BEGINNING SAT. WITH 
LONGER FETCH AREA BEGINNING FRI...WILL CONTINUE SLIGHT INCREASE IN 
SEAS AT THAT TIME. WINDS SHOULD REMAIN BELOW 15 KT WITH SEAS LESS 
THAN 4 FT THROUGH THE PERIOD. FRONTAL BNDRY TO APPROACH FROM THE NW 
OVER THE WEEKEND BUT NOT EXPECTED TO HAVE MUCH IMPACT ON THE WATERS.

.CHS...
GA...HEAT ADVISORY THROUGH THIS EVENING                              
     GAZ087-088-099>101-114>116-118-137-138-140.
SC...HEAT ADVISORY THROUGH THIS EVENING SCZ040-042>045-047>051.

$$

08/18