000 AGXX40 KNHC 261849 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 149 PM EST Sun Nov 26 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... A surface trough is over the eastern Gulf anchored by a 1014 mb low centered at the southern extent of the surface trough near 25N86W. Latest surface observations and a 26/1556 UTC ASCAT pass indicates moderate to fresh winds within 120 nm of center excluding the southern quadrant. Light to gentle winds prevail elsewhere. Seas are in the 1-2 ft range across the NE Gulf with seas in the 2-3 ft range prevailing elsewhere. The trough will drift slowly westward through Wed night and likely merge with a cold front moving into the NW Gulf late Thu into Thu night. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A weakening stationary front extends from eastern Cuba to the waters adjacent to Grand Cayman island near 18N82W with broader synoptic troughing persisting across the western Caribbean focused on a surface trough extending from 11N to 18N along 81W. Latest surface observations and ASCAT data indicate moderate to fresh winds off the coast of Nicaragua as well as the south central Caribbean. Gentle to moderate winds prevail elsewhere across the Caribbean as well as the tropical N Atlantic forecast waters. Seas are in the 4-6 ft range across much of the central Caribbean with seas in the 2-4 ft range elsewhere in the Caribbean. Generally seas will remain 5-7 ft across the tropical N Atlc forecast zones through Thu. The front is forecast to dissipate through tonight, while the broad trough will continue to linger the next several days along 81W/82W. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A cold front extends from near 31N61W to the SE Bahamas and becomes stationary across eastern Cuba and into the NW Caribbean Sea. Latest surface observations indicate gentle to moderate northerly winds west of the front and gentle to moderate southerly winds east of the front. Seas are in the 4-6 ft range across the eastern waters, 3-5 ft elsewhere outside the Bahamas, and 1-2 ft W of the Bahamas. The front will slowly drift eastward through Mon, gradually dissipating and becoming diffuse Mon night into early Tue. High pressure will build in wake of the front Mon and prevail across the forecast waters through Wed. Thereafter for the remainder of the week ahead...an area of low pressure is expected to develop across the eastern half of the region. Depending on depth of the forming trough/low...winds are expected to increase into fresh to occasional strong breeze levels N of 26N between E of 72W as the pressure gradient strengthens. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 HUFFMAN. National Hurricane Center.