000
AGXX40 KNHC 250827 CCA
MIMATS

Marine Weather Discussion...Corrected
NWS National Hurricane Center Miami FL
331 AM EDT Wed Apr 25 2018

Corrected Gulf of Mexico section

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...Corrected

A weak cold front extends from the Florida Keys southwest to
23N88W, where it becomes stationary to the eastern Bay of
Campeche and to Mexico near 18N94W as of 06Z. The cold front
portion will move to along NW Cuba and the Yucatan basin this
morning, and become diffuse tonight. Another weak cold front
will reach the Texas coast tonight, and move across the
northwest and north-central waters Thu and Thu night, then over
the eastern gulf late Thu night through Fri night as it slows
down. This front will then exit the southeast gulf on Sat
followed by weak high pres that will become centered over the
northwest gulf. The high pres will slide eastward to the far
north-central gulf by Sun night.

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

Latest satellite derived winds and seas and an overnight Ascat
pass reveal moderate to fresh trades over the south-central
Caribbean, with the exception of fresh to strong trades within 90
nm of the coast of Colombia. Gentle to moderate trades are
evident elsewhere across the Caribbean as well as across
the tropical N Atlc waters. Seas are in the 6-8 ft range over
the south-central Caribbean, 2-3 ft over the western Caribbean,
and 3-5 ft over the remainder of the Caribbean waters. Seas in
the 5-6 ft range prevail across the tropical N Atlc waters. The
gentle to moderate trades will pulse to fresh to strong mainly
over the south-central Caribbean during the overnight hours
through the rest of the week. Elsewhere, gentle to moderate
trades will continue through the period.

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

A cold front extends from 31N77.5W southwest to Miami, Florida
as of 06Z. Latest satellite derived winds and buoys indicate
strong SE to S winds to the east of the front north of 29N
between 69W and 74W. Latest altimeter data shows seas in the
range of 8-10 ft associated with these winds. Elsewhere north of
27N and to the northeast of the Bahamas, seas are in the 6-9 ft
range under fresh to strong SE to S winds. Seas are in the 5-6 ft
range over the remainder of the area, except for lower seas of
1-2 ft west of the Bahamas. Scattered thunderstorms are occurring
north of 27N and east of 74W, while similar activity with
frequent lightning, as observed in satellite imagery, is within
30 nm either side of a line from 31N77W to 30N79W.

The cold front will begin to slow down as it reaches from near
31N76W to to the Straits of Florida by early this afternoon, from
near 31N75W to NW Cuba tonight then stall into Thu and dissipate.
The strong SE to S winds will shift northeast of the forecast
waters tonight. The aforementioned thunderstorm activity is
expected to weaken as it shifts to just northeast of the forecast
waters tonight through Thu.

A second weak cold front will move over the northwest waters Fri
night. This front will reach from near 31N72W to the Straits of
Florida Sat night, and from near 31N66W to 25N72W to west-central
Cuba by Sun night. Weak high pressure will build across the area
behind the front, with generally gentle to moderate west to northwest
flow expected in the wake of this front.

$$

.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 Aguirre. National Hurricane Center.