000 AGXX40 KNHC 050822 AAA MIMATS Marine Weather Discussion...UPDATED NWS National Hurricane Center Miami FL 322 AM EST Mon Nov 5 2018 Updated SW N Atlantic including the Bahamas 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... A warm front extending from Fort Myers to 25N84W will lift north to the NE Gulf this afternoon and dissipate as central Atlantic high pressure builds westward to the eastern Gulf through Tue. What last night was a weak cold front extending from south- central Louisiana to the lower Texas coast has become stationary as of 03Z. It is forecast to lift back north as a warm front today. A surface trough is out ahead of the front along a position from just west of Mobile, Alabama to near 28N93W and to Brownsville, Texas. Satellite imagery shows large clusters of scattered moderate to strong convection increasing in coverage as they quickly move in a northeastward direction over the south- central waters from just north of the Yucatan Peninsula, northward to 26N and between 86W and 91W. This activity is mostly attributed to ripples of shortwave energy riding northeastward along a very pronounced jet stream branch that extends from the eastern Pacific to across the Gulf. The shower and thunderstorms activity is expected to continue through early Tue. Winds over the area will become mainly southerly, gentle to moderate in speeds today through Thu. Models suggest that a rather strong cold front will move over the NW Gulf coast late Thu night, and reach from the NE Gulf to near 26N93W and to SW Gulf by Fri night. A pre-frontal trough or a line of scattered showers and thunderstorms attended by a sharp wind shift should precede the front a. Strong northerly winds and building seas are expected behind this front. Scattered showers and thunderstorms are likely to precede the front. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... High pressure over the central Atlantic will weaken as it shifts eastward through Tue night. Moderate to fresh trades diminish to mainly gentle to moderate speeds Tue. They will change little through Fri night under a rather weak pressure gradient. A mid to upper-level trough with its axis near 69W will continue to bring scattered showers and thunderstorms, some with gusty winds, over much of the eastern Caribbean through Tue. ...SW N ATLANTIC INCLUDING THE BAHAMAS...Updated A warm front extending from 31N81W to NE Florida will lift north of the area this morning. Scattered showers and isolated thunderstorms associated with the front, and further supported by upper-level jet stream, will continue across the northwest waters through early this evening. Fresh to locally strong northeast winds along with long period NE swell are over the southeastern waters. These winds will diminish to mainly moderate winds today, and the swell will subside through tonight. High pressure over the area will weaken through Wed night. East winds will then become gentle to moderate winds S of 27N and gentle southeast to south winds N of 27N. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.