000 AGXX40 KNHC 140759 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 359 AM EDT THU MAY 14 2015 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: A BLEND OF THE OFFICIAL WITH GFS AND ECMWF. A BLEND OF THE OFFICIAL WITH THE MWW3 AND NWPS FOR THE SEAS. A RIDGE EXTENDS FROM THE NE CORNER OF THE GULF INTO THE SW CORNER OF THE AREA. THE RIDGE WILL CONTINUE ALONG THE SAME LINE UNTIL SATURDAY. A WEAKENING COLD FRONT WILL MOVE SOUTHWARD TO THE NE COASTAL PLAINS LATE TUE AND REMAIN THERE THROUGH THU...BEFORE LIFTING N AND OUT OF REGION THU LATE. SURFACE TROUGH WILL DEVELOP EACH EVENING ACROSS THE YUCATAN PENINSULA THEN SHIFT W-NW ACROSS SW SECTIONS OF GULF DURING THE LATE NIGHT AND EARLY MORNING HOURS. THE WIND SPEEDS WILL INCREASE TO 20 TO 25 KT...AND THE SEA HEIGHTS WILL REACH THEIR COMPARATIVELY HIGHEST VALUES OF 6 TO 7 FT...AS THE TROUGH IS SHIFTING TOWARD THE W-NW ON A DAILY AND CYCLICAL BASIS. THE SEA HEIGHTS IN GENERAL WILL RANGE FROM A LOWER VALUE OF 1 FOOT IN THE EASTERN PART OF THE GULF OF MEXICO...TO 4 TO 5 FEET IN THE CENTRAL WATERS...TO 6 TO 7 FT IN THE SW CORNER OF THE GULF OF MEXICO. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...UPDATED MODEL PREFERENCE: A BLEND OF THE OFFICIAL WITH GFS AND ECMWF. A BLEND OF THE OFFICIAL WITH THE MWW3 AND NWPS FOR THE SEAS. ONE LAST SHOT OF GALE-FORCE WINDS IS IN STORE FOR THE COLOMBIA COASTAL WATERS FOR TODAY FROM 0600 UTC UNTIL 1200 UTC. THE ATLC OCEAN HIGH CENTER/RIDGE HAS SHIFTED MORE AND MORE EASTWARD. A COLD FRONT IS SET TO MOVE INTO THE ATLC WATERS/ZONES. THE PRESSURE GRADIENT FROM THE ATLC HIGH TOWARD THE SOUTH CENTRAL CARIBBEAN SEA WILL BE RELAXED COMPARATIVELY...RELAXING THE WIND SPEEDS. THE 25 TO 30 KT WINDS THAT HAVE BEEN PRESENT IN THE GULF OF VENEZUELA FOR THE LAST FEW DAYS WILL CONTINUE FOR THE NEXT 6 TO 12 HOURS OR SO...AND THEN LIGHTEN UP TO 20 TO 25 KT FOR THE REST OF THE FORECAST PERIOD...AS THE PRESSURE GRADIENT RELAXES. THE GULF OF HONDURAS WILL EXPERIENCE PERIODS OF 20 TO 25 KNOT WINDS...DURING THE LATE NIGHT/EARLY MORNING HOURS FROM FRIDAY UNTIL EARLY MONDAY. ...SW N ATLANTIC INCLUDING THE BAHAMAS... MODEL PREFERENCE: A BLEND OF THE OFFICIAL WITH GFS AND ECMWF. A BLEND OF THE OFFICIAL WITH THE MWW3 AND NWPS FOR THE SEAS. THE HIGH PRESSURE CENTER THAT HAS BEEN COVERING THE WESTERN SECTIONS OF THE FORECAST AREA HAS SHIFTED EASTWARD. THE MOVE OF THE CURRENT COLD FRONT INTO THE OFFSHORE ZONES IS IMMINENT. THE FRONT WILL MOVE ACROSS THE NORTHERN ZONES TODAY AND FRIDAY...HAVING EXITED THE AREA COMPLETELY BY SATURDAY. HIGH PRESSURE BUILDS INTO NW AREA OF ATLANTIC OCEAN FOLLOWING THE COLD FRONT. $$ .WARNINGS...ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE COORDINATED THROUGH AWIPS 12 PLANET CHAT OR BY TELEPHONE: .GULF OF MEXICO... NONE. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... GALE WARNING EARLY TODAY. .SW N ATLANTIC INCLUDING THE BAHAMAS... NONE. $$ *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 MT. NATIONAL HURRICANE CENTER.