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AGXX40 KNHC 111933
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
233 PM EST Wed Dec 11 2019

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 extending from Tampa Bay to 25N91W and to the central Bay of Campeche as of 18Z will become stationary from Tampa Bay to the Bay of Campeche tonight. The front will weaken through Thu, with frontal remnants lifting back to the north through Fri night as low pressure forms over the west- central Gulf. This low will track northeastward across the north- central waters through early Sat, with the associated cold front sweeping across the eastern Gulf through Sat night. The front will leave behind a dissipating boundary across the far SE Gulf on Sun. High pressure will build southward across the central and eastern Gulf in the wake of this front with fresh to strong southerly flow setting up over the western Gulf by late Sun and expand eastward through early Mon. These winds will then diminish early Mon afternoon as the next front approaches the Texas coast.


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

Winds and seas will gradually diminish across the region through Fri as high pressure in the central Atlantic shifts eastward. Fresh trades along with moderate north to northeast swell are expected over the Tropical N Atlantic waters through late Fri afternoon, at which time a large set of central Atlantic northeast to east swell will begin to propagate into the eastern half of those waters. This swell will encompass just about the entire Tropical N Atlantic waters early next week.


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

A cold front extending from 31N78W to Cape Canaveral, Florida will reach from near 31N73W to West Palm Beach, Florida by late tonight and from near 31N70W to 28N76W and stationary to West Palm Beach on Thu and gradually weaken through Fri. Fresh to strong northeast winds are expected north of the front tonight through late Thu night, while large seas are expected over the water north and northeast of the Bahamas through early on Fri. Fresh to strong southerly winds will develop over the far north- central waters beginning late on Fri night. These winds will expand eastward through Sat night ahead of the next cold front forecast to move off the southeastern U.S. coast on Sat. This front will quickly move across the waters north of 27N through late Sun night, with the fresh to strong winds lifting NE of the area Sun night. High pressure in the wake of front will be centered near 32N as it shifts E to near 67W by Mon night. This will allow for return fresh southerly flow to develop over the northwest forecast waters. A tight gradient between the high pressure and relatively lower pressure over the Caribbean Sea will induce fresh to strong east winds over the far southern waters E of the Bahamas to include the Windward Passage and vicinity waters Mon and Mon night.

$$


.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 through late tonight.


.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.

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