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AGXX40 KNHC 091900
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
200 PM EST Sun Dec 9 2018

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 passes through 29N84W to 23N90W into the Bay of Campeche near 18N93W. A squall line 90 nm ahead of the front extends from 29N82W to 24N86W. Numerous moderate to strong convection are developing across the Florida peninsula into the Gulf of Mexico along and within the squall line. A warm front continues from the 1010 mb low east along the Florida panhandle to 31N79W.

the front will continue to shift SE across the remainder of the Gulf of Mexico through this evening. Fresh to strong southerly winds and thunderstorms will continue ahead of the front, mainly N of 25N. Fresh to strong winds will prevail W of the front through tonight, with gale force winds expected over the SW gulf today. High pres will build in the wake of the front. The next cold front will move into the NW Gulf Thu, quickly reaching the eastern Gulf late Thu night.


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

Upper level anticyclonic wind flow covers the Caribbean Sea with a surface ridge building across the the northeast Atlantic into the Caribbean. Under this ridge, a stable airmass remains over the region with dry conditions. No significant convection is noted across the Greater Antilles. Scattered showers are possible near the coast of Panama and Costa Rica associated to the proximity of the monsoon trough near the area. Moderate to fresh trade winds are noted in the latest scatterometer south of Hispaniola to the NW coast of Venezuela.

Fresh to strong trade winds will prevail in the S central Caribbean through Thu night, pulsing to near gale off the coast of Colombia at night. A cold front will move into the Yucatan Channel late tonight, reaching from near the Windward Passage to near the Honduras/Nicaragua border by Tue night where it will stall and dissipate through Wed. Fresh to strong winds will prevail behind the front Mon afternoon through early Wed.


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

A low pressure is centered near 30N84W over the Florida panhandle. A warm front extends east from the low into the southern Georgia coast near 31N81W to 31N61W, then transitions into a stationary front to 31N55W. Numerous moderate to strong convection extends south of 32N between 71W to 81 W associated to the approaching front over the Gulf of Mexico.

A cold front will move off the coast of northern Florida later today. A gale warning is in effect N of 29N ahead of the front in the southerly flow today through Mon. Another low pres system may develop off the Carolinas Mon night, potentially significantly impacting the waters N of 25N through the middle of the week, with conditions then improving by the end of the week.



$$


.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.


.CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None.


.SW N ATLANTIC INCLUDING THE BAHAMAS...
.AMZ111...ATLANTIC FROM 27N TO 31N W OF 77W... Gale Warning today.
.AMZ113...ATLANTIC FROM 27N TO 31N BETWEEN 70W AND 77W... Gale Warning today into tonight. GALE CONDITIONS POSSIBLE Tue night.
.AMZ115...ATLANTIC FROM 27N TO 31N BETWEEN 65W AND 70W... Gale Warning tonight. GALE CONDITIONS POSSIBLE Tue night.

$$

*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 Latto. National Hurricane Center.

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