000 AGXX40 KNHC 181944 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 344 PM EDT Tue Aug 18 2020 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 pressure pattern will prevail across the Gulf through Wed night before high pressure over the central Atlantic builds modestly across Florida and into the eastern basin Thu through Fri. Looking ahead, fresh to strong winds are possible Sun over the south central Gulf with and ahead of a tropical wave and potential low pressure approaching the region from the northwest Caribbean and Great Bahama Bank. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A strong tropical wave is moving west near 20 kt across the eastern Caribbean Sea this morning. This fast motion should limit development through Wed, but as the wave begins to slow down by late week in the western Caribbean, environmental conditions could become more favorable for the development of a tropical depression. There is a medium chance of tropical development Thu through Sat. Looking ahead, low pressure associated with another tropical wave is expected to approach the Atlantic waters off the Leeward Islands Fri or Sat. ...SW N ATLANTIC INCLUDING THE BAHAMAS... High pressure centered over the central Atlantic extends westward to the NW Bahamas and will dominate this week, bringing gentle to moderate mainly southerly winds north of 23N. An elongated area of low pressure associated with a tropical wave over the central tropical Atlantic is forecast to move W or WNW this week, and through an environment that is favorable for tropical development. A tropical depression is likely to form in the next day or two. This system is forecast to be near the Leeward Islands Fri or Sat. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Stripling. National Hurricane Center.