000
AGXX40 KNHC 060630
MIMATS

MARINE WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 AM EST THU DEC 06 2007

MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA
AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

GULF OF MEXICO...
A WEAK REMNANT FRONTAL BOUNDARY/TROUGH IS CURRENTLY LOCATED OVER 
THE SE GULF ACCORDING TO SATELLITE IMAGERY AND SOUTHERLY TO 
NORTHWESTERLY WIND SHIFTS NOTED IN BUOY AND CMAN STATIONS. THIS 
BOUNDARY WILL CONTINUE TO DISSIPATE WITH A SECOND FRONT JUST 
GETTING READY TO MOVE OFF THE N GULF COAST AS IT EXTENDS FROM 
SRN GEORGIA TO COASTAL LOUISIANA TO S/CENTRAL TEXAS. THE MAIN 
ENERGY ASSOCIATED WITH THE FRONT SHIFTS QUICKLY E LATER TODAY 
WITH THIS BOUNDARY ALSO DISSIPATING OVER THE GULF AS WINDS 
ALREADY TURN BACK TO THE E. THE REMNANT BOUNDARY LIFTS N AS A 
WARM FRONT BY TONIGHT AS WINDS BECOME SE TO S OVER THE ENTIRE 
AREA. WINDS WILL REMAIN SOUTHERLY THROUGH FRI...THEN TURN A BIT 
MORE E TO SE SAT THROUGH MON AS A SURFACE RIDGE BECOMES 
ENTRENCHED ACROSS THE REGION. WINDS ARE LIKELY TO INCREASE TO 20 
KT THROUGH THE STRAITS OF FLORIDA SUN AND MON WITH SEAS BUILDING 
TO 8 FT OR SO WITH THE UNINHIBITED FETCH. OTHERWISE...A LACK OF 
ANY FRONTS WILL KEEP THE FCST FAIRLY EASY.

SW N ATLC...
SURFACE RIDGE IS LOCATED ALONG 23N WITH SW TO W FLOW LOCATED TO 
THE N DUE TO AN AREA OF LOW PRES LOCATED ABOUT 400 NM E OF THE 
DELMARVA PENINSULA. WINDS WITHIN THE UNDERBELLY OF THE LOW ARE 
RUNNING ABOUT 20 KT N OF 26N WITH THE INCREASED PRES GRADIENT 
AGAINST THE RIDGE. THE LOW WILL BE QUICK-MOVING HOWEVER...AND 
ALL WINDS GREATER THAN 20 KT SHOULD BE NE OF THE REGION BY THIS 
EVENING EVEN AS THE ASSOCIATED FRONT TRAILS BACK TOWARDS 
FLORIDA. RIDGING SETS BACK IN BY FRI WITH EASTERLY FLOW 
DEVELOPING ACROSS MUCH OF THE AREA. A BROAD TROUGH IS EXPECTED 
TO MOVE W ACROSS THE TROPICS AND APPROACH THE AREA OVER THE 
WEEKEND...AND THE NET EFFECT WILL BE TO INCREASE THE GRADIENT 
OVER THE SRN PARTS OF THE ZONE...ESPECIALLY BY SUN AND MON WHEN 
20-25 KT WILL LIKELY SPREAD FROM E TO W S OF 26N. SINCE THIS 
FETCH OF STRONG WINDS WILL HAVE ORIGINATED FROM WELL E OVER THE 
OPEN ATLC...SIGNIFICANT EASTERLY SWELLS ARE EXPECTED TO BUILD 
OVER THE SE PART BY SUN AND BY MON SEAS COULD BE 10-15 FT E OF 
THE BAHAMAS.

CARIBBEAN...
GENERALLY LIGHT WINDS DOMINATE THE CARIBBEAN WATERS DUE TO A 
LACK OF RIDGING TO THE N. THAT WILL CHANGE BY TONIGHT AS THE 
RIDGE REBUILDS TO THE W AND WINDS INCREASE TO 20 KT ESPECIALLY 
OVER THE E AND CENTRAL PARTS OF THE CARIBBEAN...THEN TO 20-25 KT 
FRI NIGHT. WHEN THIS HAPPENS...WOULD NOT BE SURPRISED TO SEE A 
SPOTTY 30 KT WIND ESPECIALLY IN THE USUALLY FAVORED ZONE JUST W 
OF HISPANIOLA. SEAS WILL LIKELY BUILD UP TO 12 FT IN E SWELL AS 
THE EVENT BECOMES SUSTAINED FOR 2 DAYS OR SO...THEN DIMINISHES A 
BIT ON MON AS THE TROUGH OVER THE ATLC WATERS MOVES INTO THE 
CARIBBEAN AND THE PRES GRADIENT RELAXES.

WARNINGS...
ATLANTIC...
NONE.   

CARIBBEAN...
NONE. 

GULF OF MEXICO...
NONE.

FORECASTER BERG