000 AGXX40 KNHC 221817 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 217 PM EDT TUE APR 22 2014 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...AND THE SW N ATLANTIC INCLUDING THE BAHAMAS. ...GULF OF MEXICO... MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL. FOR WAVES BLENDED THE PREVIOUS FORECAST WITH THE LATEST MWW3 AND NWPS. HIGH CONFIDENCE. HIGH PRESSURE PREVAILS OVER THE FORECAST AREA. LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY...AND CMAN DATA DEPICT LIGHT TO GENTLE WINDS PREVAIL OVER MUCH OF THE FORECAST AREA. SEAS ARE IN THE 1 TO 2 FT RANGE OVER MUCH OF THE AREA EXCEPT FOR THE SW GULF WATERS WHERE SEAS IN THE 2 TO 3 FT RANGE PREVAIL. A WEAK COLD FRONT WILL SKIRT THE FAR NORTHERN WATERS TONIGHT BEFORE DISSIPATING ON WED. HIGH PRES WILL REMAIN CENTERED OVER THE FORECAST AREA THROUGH EARLY THU BEFORE SHIFTING EASTWARD. WITH THE HIGH PRES CENTER SHIFTING EASTWARD...SOUTHERLY RETURN FLOW WILL SET UP OVER THE ENTIRE WATERS BY THU NIGHT. THE SOUTHERLY RETURN FLOW WILL THEN PREVAIL OVER THE FORECAST AREA THROUGH SAT NIGHT. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL. FOR WAVES BLENDED THE PREVIOUS FORECAST WITH THE LATEST MWW3 AND NWPS. HIGH CONFIDENCE. BROAD TROUGHING PREVAILS NORTH OF THE AREA KEEPING THE PRESSURE GRADIENT OVER THE FORECAST AREA WEAK. LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY...AND CMAN DATA DEPICT GENTLE TO MODERATE WINDS OVER THE CENTRAL AND EASTERN CARIBBEAN WATERS WITH SEAS IN THE 4 TO 7 FT RANGE. LIGHT TO GENTLE WINDS PREVAIL OVER THE WESTERN CARIBBEAN WITH SEAS IN THE 1 TO 3 FT RANGE. THE BROAD TROUGHING WILL PREVAIL N OF THE AREA THROUGH EARLY FRI BEFORE WEAK HIGH PRESSURE STARTS BUILDING N OF THE AREA. THIS WILL SLIGHTLY TIGHTEN THE PRESSURE GRADIENT AND FRESHEN WINDS IN THE S CENTRAL CARIBBEAN WITH SEAS BUILDING NEAR 8 FT BY LATE FRI INTO SAT. MODERATE TO FRESH TRADE WINDS PREVAIL OVER THE TROPICAL N ATLC WATERS WITH SEAS IN THE 6 TO 8 FT RANGE IN NE TO E SWELL. SEAS WILL SUBSIDE TO LESS THAN 8 FT BY TONIGHT...AND WILL CONTINUE BELOW 8 FT THROUGH THE REMAINDER OF THE FORECAST PERIOD. ...SW N ATLANTIC INCLUDING THE BAHAMAS... MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL. FOR WAVES BLENDED THE PREVIOUS FORECAST WITH THE LATEST MWW3 AND NWPS. HIGH CONFIDENCE. A COLD FRONT EXTENDS ACROSS THE FAR SE WATERS. LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY...AND CMAN DATA DEPICT GENTLE TO MODERATE WINDS OVER THE FORECAST AREA. SEAS ARE IN THE 4 TO 6 FT RANGE E OF THE BAHAMAS AND 1 TO 3 FT W OF THE BAHAMAS. THE FRONT WILL SHIFT E OF THE AREA TONIGHT. A SECOND COLD FRONT WILL CLIP THE NORTHERN WATERS WED NIGHT THROUGH THU. THIS WILL BRING AN INCREASE IN WINDS AND SEAS MAINLY N OF 29N AND E OF 75W. NW SWELLS ASSOCIATED TO THIS FEATURE WILL BUILD SEAS TO NEAR 12 FT OVER THE FAR NE WATERS BY LATE THU NIGHT. WEAK HIGH PRESSURE WILL THEN BUILD ACROSS THE AREA ON FRIDAY. SEAS OVER THE FAR NE WATERS WILL SUBSIDE BELOW 8 FT BY EARLY SAT AS THE NW SWELL PROPAGATES E OF THE AREA. $$ .WARNINGS...ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE COORDINATED THROUGH AWIPS 12 PLANET CHAT OR BY TELEPHONE: .GULF OF MEXICO... NONE. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... NONE. .SW N ATLANTIC INCLUDING THE BAHAMAS... NONE. $$ *FOR DETAILED ZONE DESCRIPTIONS PLEASE VISIT: HTTP://WWW.NHC.NOAA.GOV/ABOUTTAFBPROD.SHTML#OWF NOTE: GRIDDED MARINE FORECASTS ARE AVAILABLE IN THE NATIONAL DIGITAL FORECAST DATABASE (NDFD) AT: HTTP://WWW.NHC.NOAA.GOV/MARINE/GRIDS.PHP FOR ADDITIONAL INFORMATION PLEASE VISIT: HTTP://WWW.HURRICANE WARNINGS.GOV/MARINE $$ .FORECASTER AL. NATIONAL HURRICANE CENTER.