000 AGXX40 KNHC 180802 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 302 AM EST Tue Dec 18 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 weak ridge associated with high pressure over Ohio Valley will weaken today as the high moves southeast into the Atlantic. A developing intense low pressure system will move E-NE from Texas to the Carolinas Wed through Thu night, dragging a strong cold front across the Gulf waters. Marine conditions are expected to rapidly deteriorate across the region Thu afternoon as the low pressure deepens. Model guidance is in good agreement, and they indicate gale force winds are likely north of 25N across the central and northern Gulf Thu night and Fri. Seas will build to a maximum of around 20 ft on Fri east of 90W. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A weakening stationary front extends from eastern Cuba to 16N85W will dissipate later today, with its remnants drifting westward into the Yucatan peninsula tonight as a surface trough. Fresh to strong winds will continue across the south-central Caribbean through Sat, with the strongest winds near the coast of Colombia each night. A cold front associated with an intense low pressure system north of the area will enter the NW Caribbean Thu night. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A cold front extends from 31N58W to eastern Cuba. The front will push eastward today to extend from 25N65W to Turks and Caicos by this evening. The western portion of the front will slowly drift northward Wed and Thu as an intense low pressure system develops over the southeast U.S. Model guidance is in good agreement, and they indicate gale force winds are likely north of 27N east of Florida Thu night through Fri night. Maximum seas will build to around 20 ft by Fri night west of 70W. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... .GMZ011...NW GULF INCLUDING STETSON BANK... GALE CONDITIONS POSSIBLE Thu night. .GMZ013...N CENTRAL GULF INCLUDING FLOWER GARDEN BANKS MARINE SANCTUARY... GALE CONDITIONS POSSIBLE Thu into Fri. .GMZ015...NE GULF N OF 25N E OF 87W... GALE CONDITIONS POSSIBLE Thu night into Fri. .GMZ017...W CENTRAL GULF FROM 22N TO 26N W OF 94W... GALE CONDITIONS POSSIBLE Thu night. .GMZ019...CENTRAL GULF FROM 22N TO 26N BETWEEN 87W AND 94W... GALE CONDITIONS POSSIBLE Thu night into Fri. .GMZ021...E GULF FROM 22N TO 25N E OF 87W INCLUDING STRAITS OF FLORIDA... GALE CONDITIONS POSSIBLE Thu night. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ111...ATLANTIC FROM 27N TO 31N W OF 77W... GALE CONDITIONS POSSIBLE Thu into Fri night. .AMZ113...ATLANTIC FROM 27N TO 31N BETWEEN 70W AND 77W... GALE CONDITIONS POSSIBLE Thu night into Fri night. .AMZ115...ATLANTIC FROM 27N TO 31N BETWEEN 65W AND 70W... GALE CONDITIONS POSSIBLE Fri night. $$ *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 Mundell. National Hurricane Center.