000 AGXX40 KNHC 070701 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 301 AM EDT SUN AUG 7 2016 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: GLOBAL MODEL CONSENSUS BLENDED WITH OFFICIAL FOR WINDS. TAFB NWPS USED FOR WAVE PARAMETERS. LOW PRESSURE OVER SOUTHERN ALABAMA WILL LINGER THROUGH THE WEEK WITH TROUGHING EXTENDING S OF THE LOW INTO THE N CENTRAL OR NE GULF. THIS WILL ENHANCE CONVECTION ACROSS THE AREA. A TROUGH OF LOW PRESSURE WILL DEVELOP OVER THE YUCATAN PENINSULA EACH NIGHT BEFORE DRIFTING OFFSHORE INTO THE SW GULF DURING THE LATE NIGHT HOURS. OTHERWISE...HIGH PRESSURE RIDGING WILL EXTEND ACROSS MAINLY THE CENTRAL GULF THROUGH THE WEEK. MODERATE TO LOCALLY FRESH WINDS WILL PREVAIL IN THE NE GULF AND OFFSHORE OF THE YUCATAN PENINSULA NEAR THE TROUGHING...WITH LIGHT TO MODERATE WINDS ELSEWHERE. SEAS WILL BE 3-5 FT IN THE NE GULF...2-4 FT IN THE WESTERN GULF...AND 2 FT OR LESS ELSEWHERE. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... MODEL PREFERENCE: GLOBAL MODEL CONSENSUS BLENDED WITH OFFICIAL FOR WINDS. TAFB NWPS USED FOR WAVE PARAMETERS. A PAIR OF TROPICAL WAVES ARE PROPAGATING THROUGH THE CARIBBEAN WATERS. LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY... AND CMAN DATA DEPICT MAINLY MODERATE TO LOCALLY FRESH WINDS OVER THE CENTRAL CARIBBEAN...GENTLE TO MODERATE ACROSS THE EASTERN AND WESTERN CARIBBEAN...EXCEPT MODERATE TO FRESH IN THE GULF OF HONDURAS...AND LIGHT TO GENTLE WINDS OVER THE TROPICAL N ATLC WATERS. SEAS ARE IN THE 4-7 FT RANGE OVER THE CENTRAL CARIBBEAN...3-5 FT OVER THE EASTERN AND WESTERN CARIBBEAN...AND 4-6 FT OVER THE TROPICAL N ATLC WATERS. HIGH PRESSURE RIDGING TO THE N OF THE AREA IS FORECAST TO BUILD IN THE WAKE OF THE SECOND TROPICAL WAVE BY TONIGHT THROUGH THE EARLY PART OF THE WEEK. THIS WILL TIGHTEN THE PRESSURE GRADIENT IN THE CENTRAL CARIBBEAN WITH TRADES INCREASING TO FRESH TO STRONG BUILDING SEAS TO 8-11 FT AS A RESULT BY EARLY MON. THESE CONDITIONS WILL PERSIST THROUGH MID-WEEK WITH WINDS PEAKING AT NEAR GALE FORCE JUST OFFSHORE OF THE NW COAST OF COLOMBIA AND IN THE GULF OF VENEZUELA DURING THE LATE NIGHT INTO THE EARLY MORNING HOURS...STARTING MON NIGHT. WINDS WILL ALSO INCREASE TO FRESH TO STRONG IN THE GULF OF HONDURAS AND NEAR THE WINDWARD PASSAGE DURING THE OVERNIGHT HOURS STARTING MON NIGHT. THE PRESSURE GRADIENT WILL THEN WEAKEN BY THE END OF THE WEEK ALLOWING FOR DIMINISHING WINDS AND SUBSIDING SEAS. ...SW N ATLANTIC INCLUDING THE BAHAMAS... MODEL PREFERENCE: GLOBAL MODEL CONSENSUS BLENDED WITH OFFICIAL FOR WINDS. TAFB NWPS USED FOR WAVE PARAMETERS. A RIDGE OF HIGH PRESSURE PREVAILS OVER THE NORTHERN WATERS. A TROUGH EXTENDS FROM 25N69W TO N COAST OF HISPANIOLA NEAR 20N72W. LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY... AND CMAN DATA DEPICT MAINLY MODERATE WINDS ACROSS THE BASIN... EXCEPT FRESH NEAR THE COAST OF HISPANIOLA. SEAS ARE IN THE 3-5 FT TO THE N OF 25N...4-7 FT TO THE S OF 25N...AND 2 FT OR LESS TO THE W OF THE BAHAMAS. THE TROUGH IS FORECAST TO GRADUALLY LIFT TO THE NW-N THROUGH THE WEEK...DISRUPTING THE RIDGING. MODEL GUIDANCE CONTINUES TO ATTEMPT TO DEVELOP A WEAK LOW ALONG THIS TROUGH...ALTHOUGH THE MOST RECENT RUNS CONTINUE TO BACK OFF ON ANY SIGNIFICANT DEVELOPMENT. $$ .WARNINGS...ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE COORDINATED THROUGH AWIPS II COLLABORATION CHAT OR BY TELEPHONE: .GULF OF MEXICO... NONE. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... NONE. .SW N ATLANTIC INCLUDING THE BAHAMAS... NONE. $$ *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 LEWITSKY. NATIONAL HURRICANE CENTER.