000 AGXX40 KNHC 091843 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 243 PM EDT Mon Apr 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 frontal boundary undulates WSW from N of Tampa Florida near 28N83W to just SE of the Mouth of the Mississippi near 29N89W to 26N92W to the coast of Mexico near 24N98W. The front has shifted northward over the western Gulf and currently possesses no associated deep convection. Warm air overrunning the boundary is producing extensive cloudiness and patchy rain north of the front. Gentle to locally moderate winds generally prevail across the basin. A low is expected to develop along the stationary front and move E of N Florida tonight. The low will continue E-NE on Tue, transitioning the fronts to a cold front that will move SE across the southern Gulf Tue then across S Florida through late Wed. The front will then dissipate in the Straits of Florida on Thu. Fresh to locally strong winds are expected just before and after the frontal passage. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A relatively dry weather pattern is currently in place and mid to upper-level ridging extends northwestward over the basin from South America with strong subsidence noted over the eastern Caribbean. Fresh to strong winds are forecast in the S-central Caribbean near the coast of Colombia tonight through Wed morning then resuming Fri night. Fresh to strong winds are forecast in the Gulf of Honduras Mon and Tue nights then resuming Fri night. Moderate to fresh trades will prevail over the remainder of Caribbean tonight through Fri, except gentle to moderate over the NW Caribbean. Fresh to strong trades will support seas greater than 8 ft over the tropical Atlc waters Tue through Fri night. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A cold front enters the discussion area over the W Atlantic near 32N60W, curves SW to 26N69W and 27N75W, then continues as a stationary boundary to Cape Canaveral Florida near 28.5N81W. Cloudiness and patchy rain are generally seen N of the front and W of 71W. However, Scattered showers and isolated thunderstorms are concentrated E of Florida and Georgia between 29N and 31N between 75W and 78W. Elsewhere, a large 1035 mb high centered over the northeast Atlantic SW of the Azores near 35N30W dominates the remainder of the area. The stationary front will lift back N as a warm front tonight as low pres develops over the NE Gulf of Mexico and moves E of N Florida. The low will drag a cold front SE Tue through Thu, reaching from 31N75W to 27N80W Tue night and from 31N66W to 25N78W Wed night. The front will then dissipate Thu. Fresh to strong winds and building seas will precede and follow the front N of 28N Tue night through Wed night. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Latto. National Hurricane Center.