000 FZNT31 KNHC 111453 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1053 AM EDT Sun Mar 11 2018 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 22N between 55W and 64W, the SW N Atlantic S of 31N W of 65W including Bahamas, and the Caribbean Sea. Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Synopsis for Caribbean Sea and Tropical N ATLC from 07N to 19N between 55W and 64W .SYNOPSIS...Fresh to strong trades will continue across the waters east of 80W, except near gale force off the NW coast of Colombia and Gulf of Venezuela tonight. A strong cold front will enter the Yucatan channel and far NW Caribbean Mon night, reach from central Cuba to the Gulf of Honduras Tue, stall from Hispaniola to Nicaragua Tue night, and dissipate by Thu. NW Caribbean W of 85W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 5 ft. .MON NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .TUE...N winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere. .TONIGHT...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere. .MON...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere. .MON NIGHT...E winds 10 to 15 kt S of 18N, and S less than 10 kt elsewhere. Seas 6 to 9 ft S of 18N, and 4 to 6 ft elsewhere. .TUE...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 15 to 25 kt. Seas 8 to 11 ft. .TONIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 11 ft. .MON...E winds 15 to 25 kt. Seas 8 to 11 ft. .MON NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft. .TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .WED...NE winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .THIS AFTERNOON...N winds less than 10 kt. Seas 6 to 9 ft. .TONIGHT...N winds less than 10 kt. Seas 6 to 8 ft. .MON...N winds less than 10 kt. Seas 6 to 8 ft. .MON NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .TUE...N winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .WED...N winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU...N winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 15 to 25 kt. Seas 5 to 7 ft Gulf of Venezuela, and 8 to 11 ft elsewhere. .TONIGHT...E winds 25 to 30 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 8 to 11 ft. .MON...Gulf of Venezuela, E winds 20 to 30 kt, diminishing to 15 to 20 kt in the afternoon. Elsewhere, E winds 15 to 25 kt. Seas 6 to 8 ft Gulf of Venezuela, and 8 to 11 ft elsewhere. .MON NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft Gulf of Venezuela, and 7 to 10 ft elsewhere. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .WED...E winds 15 to 25 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...An area of numerous showers and thunderstorms over much of the Bahamas and surrounding waters is associated with a a trough both at the surface and aloft. This activity is capable of producing strong gusty winds and frequent lightning as it quickly moves ENE. A cold front will emerge off the Georgia and NE Florida coasts late tonight into early on Mon. The front will reach from near 31N79W to West Palm Beach early Mon afternoon, from near 31N75W to NW Cuba Mon evening, from near 31N67W to 26N70W to eastern Cuba early on Tue before stalling from near 27N65W to central Cuba Tue night. The cold front will gradually weaken through Thu as high pres builds eastward over the area. Minimal to strong gale force winds are expected N of about 29N E and W of the front Mon through Tue. ATLC waters from 27N to 31N W of 77W ...GALE WARNING N OF 30N E OF 79W... .THIS AFTERNOON...S winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .MON...SW to W winds 20 to 30 kt, except becoming W to NW 30 to 35 kt N of 30N in the afternoon. Seas 6 to 8 ft, building to 8 to 11 ft in the afternoon. .MON NIGHT...NW winds 20 to 30 kt, except 30 to 35 kt N of 30N E of 79W. Seas 10 to 12 ft. .TUE...NW winds 15 to 25 kt, becoming N 10 to 15 kt in the afternoon. Seas 7 to 10 ft. .TUE NIGHT...NW winds less than 10 kt. Seas 6 to 8 ft. .WED...NW winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. .THU...NW winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE WARNING N OF 29N... ...GALE CONDITIONS POSSIBLE N OF 29N E of 75W TUE... .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...S winds 10 to 20 kt. Seas 5 to 6 ft. .MON...SW winds 15 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...N of 29N, SW to W winds 25 to 35 kt Seas 10 to 13 ft. Elsewhere SW winds 20 to 30 kt. Seas 10 to 13 ft. .TUE...W winds 20 to 30 kt, except N of 29N E of 75W W to NW winds 30 to 40 kt. Seas 10 to 14 ft. Elsewhere W to NW winds 20 to 30 kt, except SW winds 30 to 35 kt E of 67W. Seas 10 to 14 ft. .TUE NIGHT...NW winds 10 to 15 kt. Seas 8 to 13 ft. .WED...NW winds 10 to 15 kt. Seas 8 to 11 ft. .WED NIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft. .THU...NW winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 7 to 10 ft. Bahamas N of 22N .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .MON...SW winds 10 to 20 kt. Seas 3 to 4 ft. .MON NIGHT...W winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...N winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .WED...N winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 6 to 7 ft. .TONIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .MON...S winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...SW winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...NW winds 10 to 15 kt, shifting to N after midnight. Seas 6 to 9 ft. .WED...NE winds less than 10 kt, shifting to SE in the afternoon. Seas 6 to 9 ft. .WED NIGHT...SW winds less than 10 kt, shifting to W after midnight. Seas 6 to 9 ft. .THU...NW winds 10 to 15 kt. Seas 7 to 9 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 15 kt. Seas 7 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. .MON...SE winds 15 kt. Seas 7 to 8 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. .TUE...SE winds 10 to 15 kt. Seas 6 to 7 ft. .TUE NIGHT...SE winds 10 kt. Seas 6 to 7 ft. .WED...SE winds 10 to 15 kt. Seas 6 to 7 ft. .WED NIGHT...SE winds 10 kt. Seas 6 to 7 ft. .THU...SE winds 10 kt. Seas 6 to 7 ft. .THU NIGHT...SE winds less than 10 kt. Seas 6 to 7 ft.