000
AGXX40 KNHC 041801
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
201 PM EDT Tue Jul 4 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... 

A ridge along 30N across the northern Gulf will maintain gentle 
to moderate E to SE winds and seas 4 ft or less through Friday.

A weak thermal trough will develop each evening over the Yucatan
Peninsula then push offshore into the SW Gulf at night. A surge 
of fresh NE winds associated with the trough will briefly build 
seas to near 5 ft. 

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

A tropical wave along 80W is moving through the west Caribbean 
at 15-20 kt. TPW precipitable water imagery shows deep tropical 
moisture west of 75W. The wave will move across Central America 
through Wednesday. 

Another tropical wave along 64W is moving through the eastern
Caribbean at 15-20 kt. Satellite imagery continues to show a 
disctinct leading edge of clouds and showers racing ahead of the
wave axis. This wave will move into the western Caribbean Wed
night, and push across Central America Friday. Fresh winds and 
seas of 5-6 ft will accompany the wave.

Winds and seas will increase Friday and Saturday northeast of the
Lesser Antilles ahead of a vigorous tropical wave along 31W and
an elongated surface trough centered near 10N33W. The wave and
low are expected to come into phase together with improved upper
level dynamics overnight, enhancing its potential for tropical 
cyclone formation. This tropical disturbance will cross 55W Fri 
night, then approach the Leeward Islands on Saturday.

..SW N ATLANTIC INCLUDING THE BAHAMAS...

A ridge along 31N will support gentle to moderate breezes N of 
25N and moderate to fresh trade winds S of 25N. Periods of strong
winds can also be expected each evening along the northern coast
of Hispaniola. Looking ahead, winds and seas will increase Friday
and Saturday NE of the Lesser Antilles ahead of a tropical low
currently in the east-central Atlantic near 10N33W. The tropical
disturbance will approach the Leeward Islands on Saturday.

$$ 

.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 Mundell. National Hurricane Center.