Marine Interpretation Message
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000
AGXX40 KNHC 230750
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
350 AM EDT Mon Oct 23 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 cold front extends from a coastal Mississippi 1013 mb low
pressure center, to the Mexico coast near 22N98W. 20 kt to 30 kt
NW winds are from 23N to 28N from the front westward. Expect the
front to extend from the FL west coast near 29N toward the NE
corner of the Yucatan Peninsula just after midnight on tuesday.
20 kt-to-30 kt NW winds are forecast for the next 18 hours or so
along the coast of Mexico near Veracruz for the next 18 hours. NW
gale-force winds are forecast to continue until 48 hours. The
cold front will be moving through the Straits of Florida by the
end of the next 48 hours. Expect moderate-to-fresh northerly winds
during day one, and fresh-to-strong northerly winds during day
two.

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

A tropical wave is along 91W/92W from the SW corner of the Gulf
of Mexico, through Guatemala, into the eastern Pacific Ocean.
Scattered moderate to isolated strong rainshowers cover the area
from 20N southward between 84W and 96W. The wave will be absorbed
by a broader area of cyclonic wind flow that spans Central
America.

The tropical wave is combining with a western Atlantic Ocean ridge
in order to generate a large area of fresh to strong winds and
seas of 8 to 11 ft in much of the Caribbean Sea. The winds and
seas will diminish by Tue afternoon as a cold front heads SE from
the U.S.A. This front will enter the NW Caribbean on Wed
morning, then stall on Thursday. Prevailing winds in the
Caribbean Sea are expected to remain light to moderate on Thu
and Fri, with a weak ridge remaining in place to the north. A
surface trough will develop in the western Caribbean Sea on
Friday.

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

Strong high pres building across the W Atlc will maintain fresh
to locally strong E to SE winds, especially S of 22N through
Monday. A cold front is forecast to move off the SE U.S.A. coast
Tuesday morning. Strong S winds and seas building to 8 ft can be
expected N of 30N W of 75W. The front may be accompanied by
rainshowers and thunder, that are capable of producing strong
gusty winds and rough seas. The front will weaken as it moves SE
Wed through Thu night. High pressure will slide NE from the Gulf
of Mexico, along the SE coast of the United States on Friday,
supporting light to moderate winds in the region.

$$

.WARNINGS...Any changes impacting coastal NWS offices will be
coordinated through AWIPS II Collaboration Chat, or by
telephone:

.GULF OF MEXICO...
.GMZ023...SW GULF S OF 22N W OF 94W...
     Gale Warning today into Tue night.
     GALE CONDITIONS POSSIBLE Wed into Wed night.

.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 MT. National Hurricane Center.



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