000 AGXX40 KNHC 010816 CCA MIMATS Marine Weather Discussion...CORRECTED NWS National Hurricane Center Miami FL 316 AM EST Thu Mar 1 2018 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... Weak ridging extending from Tampa Florida to Tampico Mexico is supporting light to gentle winds over the eastern Gulf with 2 to 4 ft seas, and moderate to fresh southerly flow over the western Gulf with 4 to 6 ft seas. The moist southerly flow over the western Gulf is maintaining dewpoints into the lower 70s over the northwest Gulf, where platforms are indicated 4 to 5 nm in fog. The fresh southerly flow will diminish later this morning and the fog will lift as the ridge shifts eastward ahead of a cold front moving across the southern plains. The front will move into the northwest Gulf later this morning. Strong northerly winds will follow the front along the coast of Mexico until Fri evening. The front will stall from western Cuba to near Veracruz Mexico Fri night, then dissipate Sat. A ridge will build across the northern Gulf Sun and Mon. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Buoy and scatterometer satellite data indicate moderate trade winds across the region currently. This is due to weakening high pressure north of the area, although the gradient is tight enough to support pulses of fresh to strong winds off Colombia this morning, and support fresh NE winds in the lee of Hispaniola. Seas are generally 3 to 5 ft, but range 5 to 7 ft in areas of stronger winds. Divergence aloft related to an upper level trough reaching from the Mona Passage to Panama is supporting a few trade wind showers from the Leeward Islands to the ABC Islands. Subsidence along the trough axis and to the west of the trough is inhibiting showers elsewhere. Looking ahead, high pressure north of the area will support moderate to locally fresh trade winds across the basin, with strong winds pulsing at night off Colombia through late week. Large NE swell will impact the tropical Atlantic waters through Sat, with an even more significant N swell event penetrating the NE Caribbean Sun night. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Light to gentle winds persist across the region associated with weak ridging along 29N. Farther south, a dissipating trough persists along 24N through the central Bahamas. No significant shower or thunderstorm activity is noted. Recent buoy observations and a recent altimeter satellite pass indicated 7 to 9 ft seas north of 22N and east of the Bahamas, related to northeast swell. The weak ridging along 29N will shift east ahead of a cold front moving off the NE Florida coast late today. The front will reach from Bermuda to SE Florida Fri afternoon, just ahead of a reinforcing front which will generate strong to gale force winds north of 27N east of 75W as deep low pressure moves off the Virginia coast. The fronts will merge Sat and stall from 22N65W to the Windward Passage by Sun before dissipating Mon. A significant swell event and likely the largest of this winter season will accompany this system, affecting all waters E of Florida and the Bahamas by the end of this week. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ113...ATLANTIC FROM 27N TO 31N BETWEEN 70W AND 77W... GALE CONDITIONS POSSIBLE Fri night into Sat night. .AMZ115...ATLANTIC FROM 27N TO 31N BETWEEN 65W AND 70W... GALE CONDITIONS POSSIBLE Fri night into Sun. $$ *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 Christensen. National Hurricane Center.