000
AGXX40 KNHC 200641
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 AM EST MON DEC 20 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.

RIDGE ACROSS THE EASTERN GULF OF MEXICO WITH INCREASING 
SOUTHERLY WINDS OVER THE WESTERN GULF. WINDS DECREASE WED AS THE 
PRES GRADIENT WEAKENS. WEAK COLD FRONT WILL MOVE ACROSS THE NE 
GULF  WED THEN MOVE RAPIDLY E OF THE AREA THU. WINDS WILL BE 
MOSTLY LIGHT WITH THE FRONT. ANTOTHER STRONGER FRONT WILL MOVE 
OFF THE TEXAS COAST FRI WITH WINDS INCREASING TO 20-25 KT. THE 
FRONT WILL EXTEND FROM THE CENTRAL LOUISIANA COAST TO SOUTH 
TEXAS FRI AFTERNOON.

ATLC COLD FRONT FROM 31N68W TO 1000 MB LOW PRES NEAR 27N69W TO 
THE WINDWARD PASSAGE. THE LOW WILL MOVE N OF THE AREA THIS 
MORNING. GALE FORCE WINDS N OF 27N  E OF THE FRONT EARLY THEN 
DECREASE AS THE FRONT MOVES E OF THE AREA. STRONG NLY WINDS WITH 
LARGE NLY SWELLS NE OF BAHAMAS WILL DECREASE W OF 75W TUE...WITH 
SWELLS UP TO 24 FT OVER THE FAR NE PORTION OF THE AREA. WINDS 
ARE FORECAST TO INCREASE TO GALE FORCE AGAIN BRIEFLY ON WED N OF 
28N E OF 69W AS ANOTHER FRONT MOVES ACROSS THE N PORTION OF THE 
AREA AND  EXTEND FROM 26N65W TO NORTHEN BAHAMAS THU AND E OF THE 
AREA ON FRI.

CARIBBEAN TROUGH EXTENDS FROM DOMINICAN REPUBLIC 15N71W WILL 
DRIFT E AND DISSIPATE TUE. TAIL END OF COLD FRONT MOVE INTO THE 
TROPICAL ATLC ZONE AND EXTEND FROM 22N58W TO 18N62W TUE THEN 
MOVE E OF THE AREA WED. LARGE NLY SWELLS MOVE INTO THE N PORTION 
OF TROPICAL ATLC ZONE WED AND N OF AROUND 10N BY FRI. 

WARNINGS..

ATLC...
.GALE WARNING N OF 27N E OF 69W...AMZ080.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS