000 AGXX40 KNHC 070754 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 254 AM EST Tue Nov 7 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... High pressure centered over the northern Gulf is supporting light breezes and near calm conditions over the NE Gulf, with moderate SE return flow over the NW Gulf, and gentle to moderate NE to E winds elsewhere with 2 to 4 ft seas. Fresh to strong northerly winds will follow a cold front currently over central Texas that will move into the NW Gulf tonight. The ridge behind the front is not especially strong and will stay mostly stationary over the southern Plains through Thu. This will cause the front to be weak and make only slow progress through the northern Gulf, reaching from near Tampa Florida to 25N96W to Veracruz Mexico by late Thu. Pulses of strong winds will funnel between the front and the coast of Mexico through late Fri. The front generally stalls and weakens across the southern Gulf late in the week. A reinforcing front moving across the eastern seaboard will bring a new round of fresh to possibly strong NE winds over the eastern Gulf late Fri into Sat. Seas will be 5 ft or less over much of the eastern Gulf Sat due to limited fetch and duration, with the exception of the Straits of Florida and off western Cuba where fresh to strong NE to E winds will interact with the Florida Current to build seas to at least 7 ft. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A sharp upper trough from eastern Cuba to Nicaragua will support development of broad low pressure over the SW Caribbean through late week. This will maintain moderate NE winds in the lee of Cuba, but generally gentle NE to E winds elsewhere W of 75W. Moderate to fresh E to SE winds will persist into late in the week between the low pressure and ridging N of the area, with sustained 20 kt winds and seas approaching six feet off Haiti by late Wed. The ridge will weaken starting Fri as a cold front moves into the western Atlantic, allowing winds to diminish E of 75W. Winds and seas will increase over the NW Caribbean especially the near the Yucatan Channel Fri night as winds surge across western and central Cuba. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A sharp upper trough through the central Bahamas and western Cuba and an associated surface trough from Haiti to the southern Bahamas are supporting scattered showers and thunderstorms north of Hispaniola. Outflows from this convection is causing a pulse of strong easterly winds between the coast of Hispaniola and the Turks/Caicos Islands. Light breezes are noted elsewhere N of 22N under the dominance of a ridge along 28N. Little change is expected through Wed. The surface trough will amplify through Thu as the ridge shifts east, ahead of a cold front moving off the NE Florida coast late Thu. Moderate to fresh northerly flow will follow the front, as it moves to a position from 31N75W to South Florida by early Fri. A reinforcing front will overtake and re-energize the frontal boundary late Fri, bringing fresh to strong NE winds and seas to at least 9 ft off NE Florida Fri night. The merged front will reach from Bermuda to the Straits of Florida Sat, with fresh to strong NE winds over most of the area W of the front. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.nhc.noaa.gov/marine $$ .Forecaster Christensen. National Hurricane Center.