000 AGXX40 KNHC 120618 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 118 AM EST Thu Jan 12 2017 Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea, and Tropical North Atlantic from 07N to 19N between 55W and 64W and the Southwest North Atlantic including the Bahamas ...GULF OF MEXICO... MODEL PREFERENCE: Global model consensus. Medium-high confidence. Fresh to locally strong e winds will continue from 23N to 25N to the e of 86W...including across the Fl Straits...through Fri afternoon, with these conditions expanding a little further w on Sat before diminishing to a fresh breeze on Sun. The gradient will tighten again on Mon with patches of strong e winds developing along the coast of Cuba. An inverted trough will develop during the late afternoons over the Yucatan Peninsula, then move wnw offshore during the evenings and continue nw during the overnight hours eventually dissipating over the sw gulf waters during the late mornings. Expect a fresh to locally strong ne-e-se wind shift along this trough through Mon evening. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... MODEL PREFERENCE: Global model consensus. Medium-high confidence. A weakening cold front extends sw across the tropical waters e of the Leewards, and continues wsw nearly stalling across the e-central Caribbean accompanied by isolated showers. Nocturnal minimal gale conditions are forecast along the nw coast of Colombia through Sat night. Strong ne winds are are observed elsewhere between 67W and 81W. The pressure gradient will relax some today, then strengthen again tonight, with strong ne-e winds forecast to the lee of Cuba through Sat night, then the gradient will relax some on Sun and Mon. ...SW N ATLANTIC INCLUDING THE BAHAMAS... MODEL PREFERENCE: Global model consensus. Medium confidence. A 1009 mb surface low is occluding near 27N55W and trails a weak cold front sw across the tropical waters to the ne of the Leewards. Northerly gale winds, and seas to 23 ft, will persist across the discussion waters roughly to the n of 26N between 57W and 62W through late morning today. These gale conditions are surrounded by a large band of strong to near gale force ne flow across the subtropics to the e of 68W, with fresh to strong ne flow across the entire tropical waters. The pressure gradient will relax as the low continues moving e of the area allowing the northerly winds to diminish from the n through the upcoming weekend, but still expect fresh to locally strong ne-e winds across the tropics well into next week. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... Gale Warning early today. Gale Warning tonight. Gale Warning Fri night. GALE CONDITIONS POSSIBLE Fri night. GALE CONDITIONS POSSIBLE Sat night. .AMZ039...SW CARIBBEAN S OF 11N INCLUDING APPROACHES TO PANAMA CANAL... GALE CONDITIONS POSSIBLE Fri night. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.nhc.noaa.gov/marine $$ .Forecaster Nelson. National Hurricane Center.