000
AGXX40 KNHC 160753
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
400 AM EDT MON APR 16 2012

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

GULF OF MEXICO...
SURFACE HIGH PRES CENTER 1027 MB OVER WESTERN ATLC 31N66W 
EXTENDS RIDGE W ALONG 30N ACROSS GULF WATERS.  PRES GRADIENT 
BETWEEN HIGH PRES AND COLD FRONT MOVING ACROSS TEXAS RESULTS IN 
FRESH TO STRONG BREEZE WITH SEAS UP TO 10 FT REPORTED ACROSS 
ALMOST ENTIRE GULF BASIN.  WINDS DIMINISH LATER TODAY AS HIGH 
PRES WEAKENS TO 1021 MB DRIFTS S AND WEAKENS TO 1021 MB.  COLD 
FRONT EXPECTED TO MOVE OFF COAST OF TEXAS LATE TODAY AND STALL 
ALONG 90W LATE TUE HEN LIFT NE AND DISSIPATE WED.  ATLC RIDGE 
REBUILDS W OVER NORTHERN GULF WATERS THU. 

CARIBBEAN SEA...
ATLC HIGH PRES CENTER 1027 MB N OF AREA FORCES SURGE OF STRONG 
TO NEAR GALE FORCE NE WINDS AND SEAS TO 10-12 FT ACROSS ATLC 
PASSAGES INTO CARIBBEAN SEA BEHIND DYING COLD FRONT/SHEAR LINE 
EXTENDING FROM 16N62W TO 13N73W.  CONDITIONS SPREAD ACROSS 
ENTIRE BASIN TODAY UNTIL HIGH PRES WEAKENS TUE.  WINDS DIMINISH 
LATE TUE THROUGH THU. 

TROPICAL NORTH ATLANTIC S OF 19N W OF 55W...
WEAKENING COLD FRONT CROSSES NORTHERN LEEWARD ISLANDS WITH 
STRONG NE BREEZE AND SEAS 9-10 FT JUST BEHIND FRONT.  FRONT MOVE 
SE AND DISSIPATE N OF 15N LATE TODAY.  HIGH PRES BUILD IN WAKE 
OF FRONT WITH MODERATE NE BREEZE PREVAILS AND NE SWELL DECAYING 
TO 5-6 FT N OF 15N BY LATE THU.

SW NORTH ATLANTIC S OF 31N W OF 55W...
BROAD SURFACE HIGH PRES 1028 MB AT 31N67W EXTEND RIDGE ALONG 31N 
PRODUCING MODERATE TO FRESH NE BREEZE E OF 70W WHILE DIMINISHING 
E TO SE MODERATE FLOW COVER W OF 70W EXCEPT STRONGER E WINDS 
OVER THE BAHAMAS.  DECAYING NE SWELLS LINGER S OF 25N E OF 
BAHAMAS EXPECTED TO SUBSIDE BELOW 8 FT WED AS WEAKENING HIGH 
PRES CENTER SETTLES NEAR 28N75W.  COLD FRONT BRUSHES NE PORTION 
OF ZONE POSSIBLY INCREASING NW WINDS E OF 70W THU AND FRI. 

NOTE... EFFECTIVE APR 3, 2012 AT 1800 UTC THE OFFSHORE WATERS
FORECAST ZONES CHANGED FOR THE CARIBBEAN AND SW N ATLANTIC AND
THE GULF OF MEXICO. ISSUANCE TIME FOR THE GULF OF MEXICO OFFSHORE
WATERS FORECASTS IS REFERENCED TO THE EASTERN TIME ZONE. FOR
DETAILS SEE WWW.NHC.NOAA.GOV/ABOUTTAFBPROD.SHTML#OWF

GRIDDED MARINE OUTPUT IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE (LOWER CASE).

GULF OF MEXICO...
.NONE.

.CARIBBEAN SEA AND TROPICAL N ATLC...
.NONE.

.SW N ATLC...
.NONE.
    
FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER WALLY BARNES