000 AGXX40 KNHC 100724 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 324 AM EDT Mon Jul 10 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 prevails over the northern Gulf waters. Latest satellite derived winds and seas along with ship, buoy, and CMAN data depict light and variable winds over the northern Gulf with light to gentle winds prevailing over the southern Gulf. Seas are in the 2-4 ft range over the southwest Gulf and 1-2 ft elsewhere. High pressure will prevail over the northern waters through the week. A thermal trough will develop each evening over the Yucatan Peninsula before pushing offshore into the SW Gulf each night, where it will dissipate each morning. A surge of moderate to fresh N-NE winds will accompany this trough, with seas briefly peaking at 5 ft in association with these winds. Otherwise, gentle to moderate E to SE winds and seas of 4 ft or less will continue over most of the Gulf through the forecast period. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A ridge of high pressure prevails north of the area. Latest satellite derived winds and seas along with ship, buoy, and CMAN data depict fresh to strong winds over the south central Caribbean and moderate to fresh winds over the north central Caribbean. Gentle to moderate winds prevail over the remainder of the Caribbean as well as the tropical north Atlantic forecast zones. Seas are in the 6-9 ft range over the central Caribbean, 3-6 ft over the eastern and western Caribbean, and 4-5 ft over the tropical north Atlantic forecast zones. The ridge to the north of the area will weaken in response to a surface trough moving westward into the Bahamas. This will reduce the pressure gradient over the Caribbean and decrease winds and seas during the second half of the week. ..SW N ATLANTIC INCLUDING THE BAHAMAS... High pressure prevails over the forecast waters, while the remnants of Tropical Depression Four are moving through the southeast waters. Latest satellite derived winds and seas along with ship, buoy, and CMAN data depict light to gentle winds over the NW waters and gentle to moderate winds over the SE waters. Winds are fresh just to the north of Hispaniola in conjunction with the passage of the remnants of Tropical Depression Four. Seas are in the 3-4 ft range over the northern waters, 4-7 ft over the southern waters outside the Bahamas, and 1-3 ft west of the Bahamas. The ridge over the forecast waters will shift northward as the remnants of Tropical Depression Four move westward across the forecast area through midweek. The remnants of Tropical Depression Four will move west of the area by Friday as ridging from the central Atlantic remains in place in the vicinity of 32N. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 McElroy. National Hurricane Center.