000 AGXX40 KNHC 290744 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 344 AM EDT Sun Apr 29 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 dissipating frontal boundary extending from Straits of Florida west-southwest across the Yucatan Channel to the NE Yucatan Peninsula will drift eastward through Sun morning. High pressure over the NW gulf extends a ridge southeastward to the Straits of Florida and will track to the northeast and inland on Sun then move east off the Georgia coast on Mon with the ridge extending west-southwest across the northern gulf waters through Thu. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... An old frontal trough extending from the Gulf of Honduras northeastward across central Cuba will meander through Sun morning then dissipate. A reinforcing cold front has stalled from NW Cuba to the NE Yucatan Peninsula and will drift SE tonight into the NW Caribbean and slowly dissipated through Mon. Atlantic high pressure will maintain fresh trades across the entire area south of 17N, with locally strong trades across S central Caribbean along the north coast of South America through Thu. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A weak cold front extending from 31N71W south- southwest across the NW Bahamas to NW Cuba will move slowly SE and reach from near Bermuda to the central Bahamas by Sun night. Active weather will shift eastward along front through Sun night. A cold front will enter the NW waters Sun, move quickly eastward and merge with the weak front along a position from near 28N65W to west- central Cuba Mon night, then become stationary from near 27N65W to west-central Cuba by early Wed. Strong high pressure will slide eastward near 31N Mon night through Wed, with the resulting tight gradient between it and the front. Deep layered troughing along about 60W Wed will carve out llvl inverted trough that is forecast to shift W on Thu and into far SE waters. GFS is farthest E and slowest of global models and have followed EC beyond day 5. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.