653 
AGXX40 KNHC 030730
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
330 AM EDT Fri Aug 3 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 surface trough extends from the NW Gulf near 28N84W to 26N95W
to the Bay of Campeche near 19N96W. Scattered showers and
thunderstorms are near the trough axis along and offshore of
Veracruz. This feature will shift westward and inland through
tonight. The northern extent of a tropical wave will move through
the Straits of Florida tonight and across the southern Gulf this
weekend. Thermally induced surface troughs moving W from the 
Yucatan Peninsula will produce fresh to locally strong winds over
the eastern waters of the Bay of Campeche from sunset to around 
midnight. Otherwise, high pressure ridging will prevail in the 
wake of the tropical wave. Gentle to moderate anticyclonic flow 
will dominate the basin along with 1 to 3 ft seas. 

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

Fresh to locally strong trades are expected in the central
Caribbean and the Gulf of Honduras through Tue night. The
strongest winds will pulse to 30 kt near 12N74W during the
overnight hours where seas will occasionally build to 10-12 ft.
Trades will strengthen late Tue night through Wed night as the
pressure gradient tightens, possibly reaching minimal gale in 
the Gulf of Venezuela and NW of the coast of Colombia just beyond
the 5 day forecast period.

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

Winds will pulse to strong speeds near the northern coast of 
Hispaniola each night through Tue night. Otherwise, trade winds 
across the region will gradually diminish through early next week
as a ridge across the Atlantic weakens with a backdoor cold 
front dropping down from the N. The front will dissipate to a 
trough through the end of the weekend. Weak low pressure may 
develop along the trough through early next week. Ridging will 
develop by the middle of the week as the troughing dissipates.

$$

.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 Lewitsky. National Hurricane Center.