000 AGXX40 KNHC 061827 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 230 PM EDT SAT APR 6 2013 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... HIGH PRESSURE RIDGE PREVAILS OVER THE SE UNITED STATES. WINDS AND SEAS HAVE DECREASED BELOW ADVISORY CRITERIA ACROSS THE GULF WATERS. LATEST SURFACE OBSERVATIONS DEPICT ANTICYCLONIC FLOW PREVAILING WITH GENTLE TO MODERATE NE TO E WINDS OVER THE EASTERN HALF OF THE GULF AND GENTLE TO MODERATE E TO SE WINDS PREVAILING OVER THE WESTERN GULF...EXCEPT OVER THE FAR NW GULF WHERE FRESH SE WINDS PREVAIL. THE HIGH PRESSURE RIDGE WILL PREVAIL N OF THE AREA THROUGH TUE ENABLING FOR SE RETURN FLOW TO CONTINUE OVER THE GULF WATERS. SE RETURN FLOW WILL INCREASE OVER THE WESTERN GULF TUE AND WED AHEAD OF THE NEXT COLD FRONT EXPECTED TO MOVE INTO THE NW GULF WATERS LATE WED. SW N ATLC S OF 31N W OF 55W... A COLD FRONT EXTENDS FROM 31N68W TO SURFACE LOW PRESSURE 1012 MB NEAR 29.5N74W TO CENTRAL CUBA. LATEST SURFACE OBSERVATIONS INDICATE FRESH TO STRONG WINDS N OF 29N W OF THE FRONT...WITH MODERATE TO FRESH WINDS S OF 29N W OF THE FRONT. ELSEWHERE MODERATE TO FRESH SOUTHERLY WINDS PREVAIL E OF THE FRONT. SEAS TO 8 FT PREVAIL OVER THE REGION OF STRONG WINDS W OF THE FRONT...AND 4-7 FT OVER THE REMAINDER OF THE FORECAST WATERS. THE SURFACE LOW WILL LIFT NE AND SHIFT N OF THE AREA OVER THE NEXT 24 HOURS WITH THE ASSOCIATED COLD FRONT ENTERING THE AREA NEAR 31N65W TO THE WINDWARD PASSAGE EARLY SUN. THE FRONT WILL REACH FROM 28N55W TO 25N60W WHERE IT BECOMES STATIONARY TO 25N72W EARLY MON. THE FRONT WILL THEN DRIFT SOUTHWARD WHILE DISSIPATING THROUGH WED. THE PRESSURE GRADIENT WILL TIGHTEN BETWEEN THE SURFACE LOW AND HIGH PRESSURE SHIFTING OFF THE N ATLC COAST TONIGHT. THE TIGHTER GRADIENT WILL BRING GALE FORCE WINDS N OF THE AREA W OF THE LOW...WITH STRONG WINDS POSSIBLY REACHING NEAR GALE FORCE OVER THE FORECAST AREA N OF 30N WITHIN 180 NM W OF THE FRONT BY EARLY SUN. THE PARENT LOW WILL CONTINUE TO LIFT FURTHER N OF THE AREA THROUGH MON WHICH WILL LIFT THE STRONGER WINDS N OF THE AREA. SEAS WILL REACH NEAR 15 FT IN THE AREA OF STRONGEST WINDS ON SUN BEFORE STARTING TO SUBSIDE LATE SUN. CARIBBEAN SEA AND TROPICAL N ATLC S OF 22N W OF 55W... A STATIONARY FRONT EXTENDS FROM CENTRAL CUBA TO THE HONDURAS- NICARAGUA BORDER. LATEST OBSERVATIONS INDICATE FRESH NORTHERLY WINDS W OF THE FRONT. LATEST SURFACE OBSERVATIONS SHOW THE STRONG WINDS OVER THE CENTRAL CARIBBEAN HAVE DIMINISHED BELOW ADVISORY CRITERIA. SEAS ACROSS THE MAJORITY OF THE CARIBBEAN ARE IN THE 4-6 FOOT RANGE. FRESH TRADES PREVAIL OVER THE TROPICAL N ATLC WATERS WITH SEAS IN THE 7-8 FT RANGE. THE STALLED FRONT WILL DISSIPATE OVER THE NEXT 24 HOURS. HIGH PRESSURE WILL BUILD N OF THE SW N ATLC WATERS SUN NIGHT. THIS WILL BRING AN INCREASE IN TRADE WINDS OVER THE S CENTRAL CARIBBEAN WATERS MON THROUGH WED. OTHERWISE MODERATE TO FRESH TRADES WILL PREVAIL OVER THE REMAINDER OF THE FORECAST WATERS. WARNINGS... GULF OF MEXICO... .NONE. CARIBBEAN SEA AND TROPICAL N ATLC... .NONE. SW N ATLC... .NONE. EFFECTIVE 20 MARCH 2013...TAFB GRIDDED MARINE FORECASTS FOR 10-M WINDS...10-M WIND GUSTS...SIGNIFICANT WAVE HEIGHTS AND HAZARDS ARE AVAILABLE IN THE NATIONAL DIGITAL FORECAST DATABASE (NDFD) ON AN EXPERIMENTAL BASIS AT: HTTP://PREVIEW.WEATHER.GOV/GRAPHICAL ADDITIONAL INFORMATION IS AVAILABLE AT WWW.NWS.NOAA.GOV/OM/NOTIFICATION/PNS13OFFSHORE_HIGHSEAS.HTM NOTE...GRIDDED MARINE FORECASTS AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE WILL BE DISCONTINUED ONCE THE "OCEANIC" VIEW IS ADDED TO THE EXPERIMENTAL NDFD GRAPHICAL INTERFACE. $$ FORECASTER AL