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Marine Weather Discussion



253 
AGXX40 KNHC 251803
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
203 PM EDT Tue Sep 25 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...

Gentle to moderate winds will increase to between moderate and
fresh during the second half of this week as high pres builds N
of the region. A surface trough will develop over the Yucatan
peninsula each evening, shift W over the SW gulf each night,
then dissipate each morning. Moderate to fresh winds will
accompany the trough. 

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

A surface trough moving slowly westward over the eastern 
Caribbean extends from 18N62W to 12N63W. Scattered showers and
isolated thunderstorms are in the vicinity of the Leeward Islands.
The eastern Pacific monsoon trough combined with diffluence aloft
continues to enhance scattered moderate and isolated strong
convection in the SW Caribbean from 10N-14N between 77W-83W. 
Elsewhere, scattered showers are over Belize and the NW Caribbean
to the east of Belize. 

A tropical wave, the remnants of Kirk, extends from 04N48W to 
16N47W, moving W around 20 kt. Gale force winds are expected to 
continue along the northern portion of the wave for the next 
couple of days as it continues to move W to near 55W on Wed, then
just east of the Leeward Islands on Thu. There is a medium chance
for this system to re-develop into a tropical cyclone in the next
couple of days. Thereafter, the wave is expected to weaken as it
enters the eastern Caribbean late Thu. Elsewhere, fresh to 
strong winds will prevail over the central Caribbean through 
midweek. 

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

Low pres of 1014 mb centered near 32.5N75.5W will head northward
along the coastline of the Carolinas today and tonight. High 
pres ridging will set up just N of 30N in the wake of this low. 
Long period swell will cause seas to build E of 75W starting Wed.
This swell will reach the Atlc exposures of the Bahamas by this
weekend. 

$$

.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...
.AMZ035...OFFSHORE WATERS WINDWARD ISLANDS INCLUDING TRINIDAD
AND TOBAGO...
     GALE CONDITIONS POSSIBLE Thu.
.AMZ037...TROPICAL N ATLANTIC FROM 07N TO 15N BETWEEN 55W AND
65W...
     Gale Warning Wed into Thu. 
     GALE CONDITIONS POSSIBLE Thu.

.SW N ATLANTIC INCLUDING THE BAHAMAS...
     None.

$$

*For detailed zone descriptions, please visit:
www.nhc.noaa.gov/abouttafbprod.shtml#OWF

Note: gridded marine forecasts are available in the National
Digital Forecast Database (NDFD) at:
www.nhc.noaa.gov/marine/grids.php

For additional information, please visit:
http://www.nhc.noaa.gov/marine

$$

.Forecaster Latto. National Hurricane Center.