
...CNTRL GULF COAST NEWD THROUGH CNTRL/SRN GA INTO SRN SC...
CLUSTERS OF TSTMS ARE EXPECTED TO BE ONGOING SUNDAY MORNING INVOF
FRONTAL ZONE OVER THE CNTRL AND ERN GULF STATES WITH REGION OF
LARGE-SCALE FORCING FOR ASCENT AHEAD OF SRN STREAM SHORT WAVE
TROUGH. DESPITE RELATIVELY POOR LAPSE RATES...INFLUX OF A MOIST
LOW-LEVEL AIR MASS SHOULD MAINTAIN THIS CONVECTION EWD TOWARD THE
ATLANTIC COAST SUNDAY AFTERNOON INTO EVENING. PRIMARY UNCERTAINTY
IS DEGREE OF INSTABILITY THAT WILL DEVELOP WITHIN THIS REGION OF
STRONGER SYNOPTIC-SCALE FORCING AHEAD OF MAIN SHORT WAVE TROUGH
GIVEN ANTICIPATED WIDESPREAD CLOUDS AND PRECIPITATION.
IT APPEARS BETTER POTENTIAL FOR AIR MASS DESTABILIZATION WILL OCCUR
ALONG SRN PERIPHERY OF CLOUD/PRECIPITATION SHIELD FROM ERN LA/SRN MS
INTO CNTRL/SRN PORTIONS OF AL AND GA WHERE LOCALLY STRONGER DIABATIC
HEATING COUPLED WITH DEWPOINTS IN THE 60S WILL CONTRIBUTE TO MLCAPES
OF 1000-1500 J/KG. WHILE STRONGER FORCING MAY HAVE ALREADY SHIFTED
E OF THE SRN APPALACHIANS...SUSTAINED LOW-LEVEL CONVERGENCE ALONG
FRONT SHOULD BE SUFFICIENT TO SUPPORT ORGANIZED STORM DEVELOPMENT.
LARGELY UNIDIRECTIONAL VERTICAL SHEAR OF 40-45 KTS SUGGESTS
POTENTIAL FOR BOWING SEGMENTS OR SPLITTING SUPERCELLS CAPABLE OF
LOCALLY DAMAGING WINDS...MARGINAL HAIL AND PERHAPS A COUPLE OF
TORNADOES.
CONDITIONAL SLIGHT RISK HAS BEEN EXTENDED EWD TO THE SC COAST GIVEN
POTENTIAL FOR SOME DESTABILIZATION NEAR DEEPENING SURFACE LOW WHERE
SHEAR PROFILES WILL BE SUPPORTIVE OF SUPERCELLS CAPABLE OF A COUPLE
TORNADOES AND DAMAGING WINDS.

Heres a forcast Disscusion for Beaufort SC:
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
330 PM EDT SAT MAY 6 2006
.SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/...FNTL BOUNDARY HAS
PUSHED BACK TO THE W THIS AFTN (PER PILOT BOAT RPTS) SUCH THAT IT IS
NOW CLOSER TO THE COAST. IT SHOULD CONTINUE TO DRIFT BACK W
TONIGHT AND END UP STATIONARY OVER THE AREA LATE TONIGHT INTO SUN.
ISENTROPIC ASCENT WILL SLOWLY INCREASE ALONG THIS BOUNDARY LATE
TONIGHT THROUGH SUNDAY AFTERNOON...GRADUALLY INCREASING LOWER
CLOUD COVER AND ALLOWING SHRA TO DEVELOP. THE SHORT RANGE MODELS
GENERALLY AGREE ON A LOW PRES AREA DEVELOPING ALONG THE FRONT AND
MOVING ALONG IT THROUGH SC/NC DURING THE DAY/EVE. HOWEVER QPF
AMOUNTS VARY CONSIDERABLY DEPENDING ON THE MODEL. THE WRF SEEMS TO
HAVE A DECENT HANDLE WITH THE SYSTEM...SHOWING THE BEST QPF OVER
THE NRN HALF OF OUR AREA WHERE THE BEST ISENTROPIC ASCENT WOULD
OCCUR. IT HAS NOT DONE WELL DURING THE PAST EVENTS PREDICTING
CONVECTIVE PRECIP AMOUNTS...BUT THIS WEAKNESS IS SURE BETTER THAN
THE GFS/S STANDARD EXPLOSIVE FEEDBACK PROBLEMS TAINTING MOST OF
THE FIELDS. HAVE OPTED TO RAMP POPS UP FROM THE W LATE TONIGHT
THROUGH SUN...WITH AN AREA OF CATEGORICAL POPS ACROSS THE NRN TIER
DURING THE AFTN DUE TO THE CLOSER PROXIMITY TO THE EXPECTED SFC
LOW TRACK. SVR WX IS DEFINITELY OF CONCERN...PRIMARILY DEPENDENT
ON THE AMOUNT OF INSOLATION. AT THIS POINT...CLOUD COVER LOOKS
LIKE IT WILL BE EXTENSIVE ALL DAY...BEGINNING WITH A LARGE SHIELD
OF CIRRUS BLOWING OFF CONVECTION TO THE W. THE BETTER CHC OF SOME
CLEARING WILL BE ACRS SE GEORGIA AND THAT IS ALREADY BEING PLAYED
UP IN THE HAZ WX OUTLOOK. LATEST DAY 2 OUTLOOK FROM SPS INCLUDES
ENTIRE AREA IN SLIGHT RISK...MENTIONING DAMAGING WINDS AND
TORNADOES AS THE PRIMARY THREATS. WILL HOLD OFF ON A SVR WX
OUTLOOK AND LET THE MID SHIFT REASSESS.
PRECIP WILL SLOWLY TAPER OFF FROM THE NW SUN NIGHT AS THE FRONTAL
BOUNDARY PUSHES E. HAVE POPS COMING DOWN TO 40-50 PCNT DURING THE
NIGHT.