000 AGXX40 KNHC 301823 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 223 PM EDT Thu May 30 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... High pressure extending into the northern Gulf will maintain moderate easterly winds over most of the basin through Mon. A broad area of low pressure across Central America in combination with a diurnal trough moving off the coast of Yucatan each night will enhance easterly winds in the SW Gulf this weekend. Expect for scattered showers and thunderstorms, associated with the low pressure, to move offshore southeastern Mexico and into the southwestern Gulf this weekend. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... High pressure north of the region will maintain moderate to fresh trades across the Caribbean through the weekend. A broad area of low pressure over Central America will produce widespread showers and thunderstorms in the western Caribbean during the next few days. Ample divergence occurring to the southeast of a a mid to upper-level trough north of the area, that is moving to the southeast, in combination with very moist southeasterly flow, is resulting in numerous showers and scattered thunderstorms over much of the north-central and northeastern Caribbean waters. The mid to upper-level trough is forecast to induce a surface trough over the far northeastern Caribbean beginning late Fri night and into early Sat. A tight pressure gradient will develop between this trough and strengthening Atlantic high pressure to its northeast increasing the present moderate east trades over the northeastern Caribbean to strong speeds. These trades are then expected to diminish Sat afternoon. Ample divergence found to the southeast of the mid/upper-level trough combined with very moist southeast flow will be favorable for scattered showers and thunderstorms to continue over the far southeast waters through at least Fri night, at which time the trough is expected to have shifted east of the forecast area. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A ridge along 28N will remain in place the next several days maintaining fairly tranquil conditions over much of the forecast waters. A mid to upper-level trough, with ample divergence to its southeast, will support unsettled weather over the far southeast part of the area through Fri evening, at which time the trough is expected to have shifted to the east of the far southeast waters. The mid/upper trough is forecast to induce a surface trough that will extend from the far southeast part of the area into the northeast Caribbean by late Fri. A tight pressure gradient is expected to develop between this trough and strengthening Atlantic high pressure to its northeast allowing for strong east winds to materialize over the northeastern Caribbean late Fri night into Sat. These winds are then expected to diminish by Fri evening as the gradient slackens some. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.