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AGXX40 KNHC 200538
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
138 AM EDT Fri Jul 20 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...

Latest surface observation show moderate to fresh winds prevail over the SW Gulf just off the coast of the Yucatan peninsula, while gentle to moderate winds prevail over the remainder of the western Gulf. Light to gentle winds prevail over the eastern Gulf. Seas are in the 2-3 ft range over the SW Gulf, and 1-2 ft over the remainder of the Gulf waters. High pressure ridge will prevail along 25N through early next week. A series of weak troughs will pass across the far NE Gulf through early next week. A surface trough will move off the Yucatan Peninsula into the Bay of Campeche each evening, accompanied by fresh nocturnal winds.


...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...

Latest surface observations indicate fresh to strong winds over the south central Caribbean...reaching near gale force off the coast of Colombia. Moderate to fresh winds prevail over the north central Caribbean as well as the eastern Caribbean, and the tropical N Atlc forecast zones, while light to gentle winds prevail across the western Caribbean. Seas are in the 8-10 ft range over the south central Caribbean, 5-7 ft over the north central Caribbean, 5-6 ft over the eastern Caribbean, and 2-4 ft over the western Caribbean. Over the tropical N Atlc forecast zones, seas are in the 7-8 ft range. High pressure north of the area will support strong to near gale force winds in the south- central Caribbean through Sat night. The ridge will start to lift northward on Sunday, weakening the pressure gradient and diminishing winds.




...SW N ATLANTIC INCLUDING THE BAHAMAS...

Latest surface observations indicate moderate to fresh winds over the waters S of 22N, and gentle to moderate winds elsewhere. Outside the Bahamas, seas are in the 5-7 ft range S of 22N and 4-5 ft N of 22N. West of the Bahamas, seas are in the 1-2 ft range. High pressure ridge across the northern waters will remain in place through Sunday before lifting northward.

$$


.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 AL. National Hurricane Center.

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