000 AGXX40 KNHC 040525 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 125 AM EDT Sat Nov 4 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 over the northern Gulf is maintaining light to gentle breezes across the NE and N central Gulf with slight seas. Gentle to moderate SE winds are ongoing over the NW Gulf with 2 to 4 ft seas. Moderate NE winds are active across the SE Gulf and Straits of Florida, between a westward moving trough in the Bahamas and the high pressure centered over the western Florida Panhandle. NE winds off western Cuba and the Yucatan peninsula are may be reaching 20 kt with seas of 5 to 6 ft. A weak thermal trough will develop over NW Yucatan each of the next several evenings and drift W through the SW Gulf through the early mornings. No significant showers or thunderstorms are noted or expected for a few days. No major changes are noted through early next week. Looking ahead, a cold front is will move off the coast of Texas by mid week, followed by strong northerly winds and building seas over the NW Gulf through Wed night. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A surface trough south of Jamaica is moving into the western Caribbean, in phase with another trough north of the region W moving through the Bahamas. This is interacting with high pressure over the NE Gulf to support fresh NE winds in the lee of Cuba and near the Yucatan Channel, with seas to 7 ft in the NW Caribbean. Gentle trades persist elsewhere from the tropical N Atlantic W of 55W through the central Caribbean, except for fresh winds pulsing off Colombia. Winds and seas will diminish through late Sun as the Caribbean trough drifts W. High pressure building into the western Atlantic in the wake of the trough N of the area will allow trades to increase slightly from the tropical N Atlantic into the central Caribbean through early next week. Looking ahead, fresh NE to E winds will prevail in most areas by mid week as the ridge builds N of the region. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A surface trough along 75W and a 1012 mb low pressure area are moving into the central and northern Bahamas currently. Moderate to fresh NE winds are noted over waters between the trough and NE Florida allowing seas to build to 5 ft the Gulf Stream. The trough will linger in the area through early next week, but these winds will diminish through late today as high pressure over the Carolinas dissipates as a cold front moves off the coast well N of the region. High pressure will build from the central Atlantic into the western Atlantic in the wake of the trough, Sun through early next week. This will support moderate trade winds S of 22N and overnight pulses of fresh trades off the N coast of Hispaniola with seas to 6 ft at times. Otherwise modest winds and seas will persist into mid week N of 22N. Looking ahead, winds may veer SW off the NE Florida coast late Wed ahead of an approaching cold 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.