000 FZNT31 KNHC 212113 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 513 PM EDT Sun Oct 21 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 NE winds are forecast to pulse back late tonight in the Windward Passage and within 30 nm of a line from 17.5N70W to 17N72W. The winds through the Windward Passage will diminish early Mon, and the winds south of Hispaniola will diminish by early Mon afternoon. NE winds through the Windward Passage increase to strong late Mon afternoon and diminish late Mon night. By early Tue afternoon, these winds diminish to fresh speeds. Elsewhere, moderate to fresh trades will continue through early Wed, then diminish to the gentle intensity through Thu night. A tropical wave over the far eastern Caribbean will slowly move across the eastern Caribbean through Wed as it weakens. East to southeast gentle to moderate winds will follow the wave. NW Caribbean W of 85W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 ft. .WED...NE winds less than 10 kt. Seas 3 ft. .WED NIGHT...E winds less than 10 kt. Seas 2 ft or less. .THU...E winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .FRI...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds less than 10 kt. Seas 3 ft. .THU...NE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .FRI...NE winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .MON...NE winds 10 to 15 kt. Seas 4 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...Within 90 nm of coast of Colombia, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .THU...NE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. SW Caribbean S of 11N .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N to NE winds less than 10 kt. Seas 3 to 4 ft. .TUE...NE winds 10 to 15 kt, shifting to N in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .WED...NW winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...N winds less than 10 kt. Seas 3 ft. .THU...N winds less than 10 kt. Seas 3 ft. .THU NIGHT...N winds less than 10 kt. Seas 3 ft. .FRI...N winds less than 10 kt. Seas 3 ft. .FRI NIGHT...N winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. Caribbean between 64W and 72W .TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .MON...NE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .TUE...Gulf of Venezuela, E winds 10 kt in the morning, becoming variable winds less than 10 kt. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .THU...E winds less than 10 kt. Seas 3 ft. .THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .WED...SE winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .THU...Variable winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .FRI...Variable winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Synopsis for the the SW N ATLC including the Bahamas .SYNOPSIS...A strong cold front extending from 31N69W to West Palm Beach Florida will reach from near Bermuda to Miami tonight, and from near 28N65W to the Florida Keys Mon morning and become stationary through the middle of next week. Fresh to strong winds and building seas are expected behind this front through Mon night as strong high pressure slides eastward off the U.S. east coast. The high pressure and front will weaken Tue through early Thu allowing for winds to diminish and seas to subside. The gradient is forecast to tighten beginning on Thu east of NE Florida between high pressure to the N across the eastern seaboard and low pressure that tracks northeastward from the Gulf of the Mexico to across northern Florida. ATLC waters from 27N to 31N W of 77W .TONIGHT...NE winds 15 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 15 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...E winds less than 10 kt. Seas 4 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 15 to 25 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .FRI...SE winds 15 to 25 kt. Seas 6 to 9 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...N winds 15 to 25 kt W of 70W, and NW 10 to 20 kt elsewhere. Seas 6 to 9 ft. .MON...NE winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...NE 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 15 kt. Seas 5 to 7 ft. .WED...NE winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds less than 10 kt. Seas 4 to 5 ft. .THU...NE winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 7 to 10 ft. Bahamas N of 22N .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .WED...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 ft. .THU...Variable winds less than 10 kt. Seas 3 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 3 ft. .FRI...Variable winds less than 10 kt, becoming SW less than 10 kt in the afternoon. Seas 3 ft. .FRI NIGHT...SW winds less than 10 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...NE winds less than 10 kt. Seas 4 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 6 to 8 ft W of 70W, and 4 to 5 ft elsewhere. .MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 kt. Seas 5 to 7 ft. .WED...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 5 ft. .WED NIGHT...NE winds less than 10 kt. Seas 4 to 5 ft. .THU...E winds less than 10 kt. Seas 4 to 5 ft. .THU NIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 4 to 5 ft. .FRI...SE winds 10 kt. Seas 4 to 6 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters S of 22N W of 65W .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .WED...E winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .FRI...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 kt. Seas 5 to 6 ft. .MON...E winds 10 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .TUE...E winds 10 kt. Seas 4 to 5 ft. .TUE NIGHT...E winds 10 kt. Seas 4 to 6 ft. .WED...E winds 10 kt. Seas 5 to 6 ft. .WED NIGHT...Variable winds less than 10 kt. Seas 5 to 6 ft. .THU...Variable winds less than 10 kt. Seas 4 to 5 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 4 to 5 ft. .FRI...Variable winds less than 10 kt. Seas 4 to 5 ft. .FRI NIGHT...E winds 10 kt. Seas 4 to 5 ft.