Marine Interpretation Message
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000
AGXX40 KNHC 280759
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
359 AM EDT Fri Apr 28 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...

An earlier frontal boundary over the Gulf has dissipated,
leaving weak ridging in place along roughly 28N. Moderate to
fresh southeast winds are noted north of 26N west of 90W, with
gentle to moderate breezes elsewhere and slightly seas. Southerly
flow will increase over much of the central and western Gulf
through late today, between the stronger ridging over the western
Atlantic, and developing low pressure over the Southern Plains.
The low pressure will move into the the Central Plains by
Saturday, supporting strong southeast winds across the Gulf. Seas
will build to 7 to 12 ft with highest seas over the northwest
Gulf. A trailing cold front will move off the Texas coast early
Sunday, bringing the possibility of winds to minimal gale force
to the Mexican coast of Tampico and Veracruz Sunday. The front
will move east, with winds and seas diminishing through Monday as
the front eventually stalls and dissipates from the Big Bend
area of Florida to east central Mexico Tuesday.

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

A 03 UTC scatterometer pass indicated fresh to strong southeast
winds off the north coast of Honduras. Ship observations indicate
strong winds are also pulsing off the coast of Colombia. Moderate
to fresh trade winds persist elsewhere. These pulses will grow
in strength and areal extent through tonight as the gradient
tightens between stronger ridging over the western Atlantic and
troughing over the Gulf of Mexico. By late Saturday, the building
ridge to the north will support strong winds in the Windward
Passage and south of Hispaniola near Cabo Beata. Fresh trade
winds and building seas will generally prevail across the
remainder of the region. Low pressure moving eastward into the
Western Atlantic will weaken the ridge to the north and allow
winds and seas to subside on through early next week.

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

Ridging will persist along roughly 28N through Sunday. This will
support gentle to moderate breezes north of 24N, with moderate
to fresh trade winds farther south, pulsing to fresh to strong at
night near the approaches to the Windward Passage through Monday
night. Southeast to south return flow will increase east of
Florida north of 27N and west of 75W by late Sunday as a cold
front approaches the area from the eastern Gulf of Mexico.
Looking ahead, the gradient will relax again early next week as
the high to the north weakens and the front dissipates.

$$

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

.GULF OF MEXICO...
.GMZ017...W CENTRAL GULF FROM 22N TO 26N W OF 94W...
     GALE CONDITIONS POSSIBLE Sun.
.GMZ023...SW GULF S OF 22N W OF 94W...
     GALE CONDITIONS POSSIBLE Sun into Sun 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 Christensen. National Hurricane Center.


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