000
AGXX40 KNHC 130655
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
215 AM EST SUN FEB 13 2011

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...
A 1032 MB HIGH PRES CENTERED OVER THE NW PORTION OF THE GULF 
NEAR 28N94W WILL SLIDE E TO N CENTRAL GULF SUN THROUGH MON THEN 
WILL SHIFT NE OF THE AREA WITH A RIDGE EXTENDING FROM NW FLORIDA 
TO NE MEXICO WED AND THU. NE WINDS OF 20 KT ARE STILL NOTED S OF 
25N E OF 92W DUE TO THE PRES GRADIENT BETWEEN THE HIGH PRES AND 
A FRONTAL BOUNDARY OVER THE NW CARIBBEAN. THESE FRESH WINDS WILL 
PERSIST TODAY THEN DIMINISH BELOW 20 KT BY MON. WINDS WILL 
BECOME LIGHT AND VARIABLE N OF 25N AROUND HIGH CENTER EARLY NEXT 
WEEK...THEN INCREASE IN THE SLY RETURN FLOW NW OF RIDGE AXIS 
OVER NW WATERS DURING MID WEEK. EXPECT SE TO S WINDS OF 20 KT 
OVER THE FAR WESTERN GULF LATE WED INTO THU.    

SW N ATLC W OF 55W...
A COLD FRONT ENTERS THE FORECAST AREA NEAR 29N65W THEN CONTINUES 
SW TO NEAR 25N71W WHERE IT BECOMES STATIONARY TO CENTRAL CUBA. 
THE FRONT WILL REACH FROM 26N65W TO THE WINDWARD PASSAGE BY THIS 
EVENING...THEN SLOWLY MOVE SE MON THROUGH TUE WHILE WEAKENING. A 
SECOND COLD FRONT WILL MOVE INTO THE NW PORTION MON NIGHT... 
ACCELERATE SE AND MERGE WITH THE REMNANTS OF THE FIRST FRONT TUE 
NIGHT. THE MERGED FRONT WILL THEN MOVE SE OF THE AREA WED AS 
HIGH PRES RIDGE BUILDS W TO E ALONG 31N. THE 0204 UTC ASCAT PASS 
SHOWS NLY WINDS OF 20 KT WITH ISOLATED SPOTS OF 25 KT W OF FRONT 
BETWEEN THE BAHAMAS AND CUBA. THESE WINDS ARE FORECAST TO 
DIMINISH BELOW 20 KT BY LATE MON AS THE FRONT WEAKENS. AT THE 
SAME TIME...WINDS ARE EXPECTED TO INCREASE OVER THE N WATERS AS 
A SECOND COLD FRONT MOVES INTO THE AREA. EXPECT BUILDING SEAS OF 
8 TO 13 FT IN NW SWELL IN THE WAKE OF THE SECOND COLD FRONT WITH 
THE HIGHEST SEAS OVER THE NE PART OF THE FORECAST REGION.  

CARIBBEAN AND TROPICAL ATLC WATERS...
A STATIONARY FRONT EXTENDS FRONT CENTRAL CUBA TO THE GULF OF 
HONDURAS. THE FRONT WILL MOVE SE AS A COLD FRONT AS GRADIENT 
TIGHTENS NW OF THE BOUNDARY SUPPORTING N-NE OF 20 TO 25 KT TODAY 
WITH RAISING SEAS OF UP TO 10 FT W OF 85W INCLUDING THE YUCATAN 
CHANNEL. THE FRONT IS FORECAST TO GRADUALLY DISSIPATE TONIGHT. 
FRESH TO STRONG TRADE WINDS WILL PERSIST ACROSS THE EASTERN AND 
CENTRAL CARIBBEAN...AND THE TROPICAL N ATLC THROUGH TUE. A 
STRONG GRADIENT EXISTS ACROSS THE TROPICAL ATLC E OF 50W WHERE 
SCATTEROMETER WINDS ARE SHOWING A VERY LARGE AREA OF 20-25 KT NE 
WINDS. THIS IS GENERATING LARGE WIND SWELL THAT WILL DOMINATE 
THE TROPICAL ATLC AND MOVE THROUGH THE CARIB PASSAGES FOR THE 
NEXT FEW DAYS. THE GRADIENT WILL RELAX WED INTO THU AS HIGH 
PRES MOVES NE AND WEAKENS.    

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER GR