Marine Interpretation Message
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000
AGXX40 KNHC 180515
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
115 AM EDT Wed Oct 18 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 quasi-stationary front extending from Tampa Bay to 25N90W to
the central Bay of Campeche will creep S across the S Fl
Peninsula throughout today and gradually lose identity W OF 80W.
Strong to near gale NW flow will continue along the coast of
Veracruz today. A strong NE breeze is expected across the NE
waters today. A fresh to locally strong E breeze is expected
across the northern Gulf waters on Thu and Fri, becoming SE
across the NW Gulf waters on Thu night and continuing through
Sat night, with the next cold front expected on Sun.

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

A tropical wave currently along 82W will move W across Central
America today. Fresh to locally strong trades have set up E of
this wave. A second tropical wave is along 67W and will continue
W accompanied by ISOL TS. A third tropical wave accompanied by
considerable convection and will pass W through the Windwards
today and effectively reinforce the existing trade flow
resulting in strong E trades, and seas of 7-11 ft, spreading W
across the Caribbean E of 73W by sunrise on Thu. These strong
conditions will shift further W and extend across the Central
Caribbean beginning on Fri and persisting well into next week.

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

A broad surface trough continues between 68W and 73W. A cold
front is approaching the trough along a position from 31N70W to
SE Fl. Strong post-frontal NE flow with seas to 12 ft expected W
of a line from 31N72W to Post Canaveral Fl today and diminishing
tonight. The northern portion of the front is expected to merge
with trough tonight, becoming quasi-stationary along a position
from 31N67W to the NW Bahamas to the Fl Straits. The merged
boundary will drift W on Thu with global models agreeing that a
surface low will develop along the front near 31N71W around
sunrise on Thu, and immediately begin to move N-NE while
dragging the cold front E to a position from Bermuda to the
Central Bahamas around sunrise on Fri. A second low may develop
along the front near 30N62W on Sat as the front begins to stall
again.  The front expected to dissipate W of 65W by Sun as fresh
SE return sets up across the waters N of 23N W of 72W.

$$

.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 Nelson. National Hurricane Center.



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