000
AGXX40 KNHC 301828
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
125 PM EST THU DEC 30 2010

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

GULF OF MEXICO...
BUOYS AND SHIP DATA SHOW FRESH TO STRONG SE TO S FLOW OVER MOST 
OF THE GULF OF MEXICO TODAY...BETWEEN A 1022 MB SURFACE HIGH 
PRES AREA NE OF THE BAHAMAS...AND A DEEP LAYER TROUGH DIGGING 
INTO THE SOUTHERN PLAINS. AN ASSOCIATED COLD FRONT WILL MOVE OFF 
THE TEXAS COAST LATE FRI NIGHT/EARLY SAT MORNING...FOLLOWED BY 
STRONG N TO NE WINDS. THE FRONT WILL MOVE SE AND EXTEND FROM 
MOBILE BAY TO VERACRUZ MEXICO BY LATE SAT...AND FROM THE FLORIDA 
BIG BEND AREA TO 22N94W TO 18N94W BY LATE SUN. NW TO N WINDS TO 
30 KT ARE POSSIBLE ALONG THE VERACRUZ COAST SAT NIGHT AND SUN. 
THE UPPER SUPPORT FOR THE FRONT WILL LIFT OUT THROUGH NEW 
ENGLAND BY LATE SUN. THE STRONG N FLOW OVER THE FAR WESTERN GULF 
WILL DIMINISH MON AS THE FRONT DISSIPATES OVER THE WESTERN GULF. 
SIMILARLY THE FRONT WILL PUSH AS FAR AS 26N OVER THE EASTERN 
GULF FOLLOWED BY 20 KT N FLOW...AND THIS WILL DIMINISH MON AS 
THE UPPER SUPPORT LIFTS OUT. WINDS DIMINISH TO 10 TO 15 KT AND 
VEER SE TO S MON AND TUE. SEAS SUBSIDE TO 3 TO 5 FT.

CARIBBEAN AND TROP N ATLC W OF 55W...
HIGH PRES CENTERED OVER THE WESTERN ATLC WILL MAINTAIN FRESH TO 
STRONG TRADES OVER MOST OF THE CARIBBEAN SEA AND THE TROP ATLC 
WATERS E OF THE LEEWARDS THROUGH EARLY NEXT WEEK. THIS WILL 
INCLUDE FRESH TO STRONG NE FLOW THROUGH THE WINDWARD AND MONA 
PASSAGES. SEAS WILL BE 8 TO 13 FT IN NE SWELL OVER THE 
CARIBBEAN...AND 8 TO 11 FT IN N SWELL OVER THE TROP N ATLC.

SW N ATLC S OF 31N W OF 65W...
LIGHT FLOW DOMINATES MUCH OF THE DISCUSSION AREA W OF 
75W...UNDER THE INFLUENCE OF A 1022 MB SURFACE HIGH PRES AREA 
CENTERED NE OF THE BAHAMAS NEAR 28N74W. BUOYS CONFIRM RESIDUAL N 
SWELL E OF 70W WITH HEIGHTS OF 8 TO 10 FT. A 15Z ASCAT PASS 
SHOWS 20 KT FLOW NEAR THE APPROACHES TO THE WINDWARD PASSAGE S 
OF GREAT INAGUA ISLAND IN THE SOUTHERN BAHAMAS. THE SWELL 
SUBSIDES BELOW 8 FT THROUGH FRI...JUST AS THE HIGH PRES BUILDS 
AND ALLOWS WINDS TO INCREASE S OF 24N TO 15 TO 20 KT. SW FLOW N 
OF THE BAHAMAS AN E OF N FLORIDA WILL INCREASE BY LATE SUN AHEAD 
OF A COLD FRONT THAT WILL MOVE OFF THE N FLORIDA COAST BY LATE 
SUN NIGHT/EARLY MON MORNING. THE FRONT WILL EXTEND FROM BERMUDA 
TO SOUTH FLORIDA BY LATE MON FOLLOWED BY FRESH N TO NE FLOW. THE 
WINDS DIMINISH TUE AS THE FRONT STALLS AND DISSIPATES ALONG 27N.

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER CHRISTENSEN