712 
AGXX40 KNHC 281804
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
204 PM EDT Tue Aug 28 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...

A ridge continues to dominate the Gulf waters producing gentle 
to moderate E to SE winds, and seas in the 2-4 ft range based on
latest altimeter passes. Little change in this weather pattern 
is expected through Sat. A surface trough will develop each 
evening over the Yucatan Peninsula before pushing offshore into 
the SW Gulf. A surge of moderate to fresh NE to E winds will 
accompany this trough. 

...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, fresh winds over the north-central 
Caribbean, and gentle to moderate winds elsewhere across the 
basin as well as the tropical N Atlc forecast zones. Seas are in
the 8-10 ft range over the south-central Caribbean based on
altimeter data, 6-7 ft over the north-central Caribbean, and 3-5
ft elsewhere across the Caribbean waters. Over the tropical N 
Atlc forecast zones, seas are in the 4-6 ft range. The fresh to 
strong winds will prevail in the south- central Caribbean through
Wed before diminishing. Gentle to moderate winds will prevail 
elsewhere. A tropical wave currently approaching the waters E of 
the Lesser Antilles will cross the Lesser Antilles early on Wed, 
and reach Puerto Rico early on Thu. This wave is forecast to 
bring fresh to locally strong easterly winds and seas to around 8
ft. 

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

A ridge, with axis N of area, dominates the region. Latest 
surface observations indicate moderate to fresh winds S of 24N, 
and gentle to moderate winds N of 24N. Outside the Bahamas, seas 
are in the 4-6 ft range S of 24N, and 3-4 ft N of 24N. West of 
the Bahamas, seas are in the 1-3 ft range. High pres will prevail
across the area through the forecast period, supporting moderate
to fresh winds S of 24N and gentle to moderate winds N of 24N. 
The one exception is north of Hispaniola, including approach to
the Windward Passage, where winds will pulse to fresh to strong 
at night through Sat, with seas building to 6-7 ft.

Looking ahead, a tropical wave is forecast to move off the west 
coast of Africa on Thursday. Some development of this system is 
possible over the weekend while it moves westward across the 
eastern tropical Atlantic Ocean.

$$

.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 GR. National Hurricane Center.