000 FZNT31 KNHC 031505 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1105 AM EDT Thu May 3 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 trades across the eastern and central Caribbean will diminish briefly this afternoon as a trough develops north of Puerto Rico. E to SE tradewinds will become fresh to strong tonight through Sat night across the E half of the basin as the trough shifts W across the Bahamas and high pressure builds in its wake. An upper level disturbance will drift SW from the Bahamas across eastern and central Cuba to the north central Caribbean, and interact with the surface trough to produce scattered thunderstorms Fri through late Sat over the north central Caribbean, and impacting the Windward Passage. Winds and seas will subside on Mon and Mon night. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...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...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...N winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...N winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE 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 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...Within 90 nm of coast of Colombia, E winds 10 to 20 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...N winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. .SAT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SUN...Variable winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .MON...Variable winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .SAT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON 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 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 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 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A stationary front from 27N65W to the central Bahamas will meander and dissipate through tonight. Strong NE to E winds will persist north of front through the northern Bahamas between high pressure north of the area and a trough developing north of Puerto Rico. This trough will drift W and amplify tonight, reaching 74W Fri and 80W Sat. Active weather will accompany the trough, as it interacts with an upper level disturbance moving SW across the Bahamas and Cuba. Strong SE winds and building seas will follow in the wake of the trough through late Sun. A weak frontal boundary will stall off NE Florida Mon. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...S winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .MON...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 4 to 6 ft elsewhere. .SAT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...SE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...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 15 kt. Seas 4 to 6 ft. Bahamas N of 22N .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...S winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...E winds 15 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...SE winds 15 to 25 kt. Seas 8 to 11 ft. .SAT...SE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...SE winds 15 to 20 kt. Seas 7 to 9 ft. .SUN...SE winds 15 to 20 kt. Seas 7 to 9 ft. .SUN NIGHT...SE winds 15 to 20 kt. Seas 6 to 8 ft. .MON...SE winds 15 to 20 kt. Seas 6 to 7 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 5 to 6 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...SE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 15 to 20 kt. Seas 6 to 7 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 15 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 15 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .SUN...E winds 15 to 20 kt. Seas 6 to 7 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .MON...E winds 15 to 20 kt. Seas 6 to 7 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft.