429 AGXX40 KNHC 122017 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 417 PM EDT Thu Jul 12 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 high pressure will continue across the area through Mon. A weak surface trough along 89W north of 25N will move westward through Fri while dissipating. Another surface trough will move westward off the Yucatan Peninsula each evening through Mon. It will slightly enhance nocturnal winds and seas over the SW Gulf. A tropical wave will move westward across the Yucatan peninsula this evening and across the SW Gulf tonight through Fri. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A tropical wave across the NW Caribbean near 86W will move inland the Yucatan peninsula and Central America today. Elsewhere, Atlantic high pressure will build across the region behind the tropical wave to freshen tradewinds across the central Caribbean waters. Winds will pulse to strong to near gale force each night off Colombia, except to minimal gale force tonight and Fri night through Tue night. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A trough extends from the central Florida coast near Cape Canaveral east-northeastward to a weak 1016 mb low at 31N71W. The low will lift north of the 31N tonight, while the trough lingers across the northwestern waters through early Sun night. Central Atlantic high pressure will build westward across the eastern part of the basin Fri through Tue, with the resultant pressure gradient allowing for fresh to strong E winds south of 23N. East winds will pulse to strong between the southeastern Bahamas and Hispaniola from the afternoons to overnight hours during the period. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... Gale Warning tonight and Fri night. .AMZ033...CARIBBEAN S OF 15N BETWEEN 64W AND 72W INCLUDING VENEZUELA BASIN... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Aguirre. National Hurricane Center.