000 FZNT31 KNHC 171515 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1115 AM EDT Thu Aug 17 2017 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...A strong and broad tropical wave from E Hispaniola to NW Venezuela will move across the central Caribbean through Sat, and the western Caribbean through Sun. Low pres in the tropical Atlantic east of 55W will move into the eastern Caribbean midday Fri, as a possible tropical cyclone. This developing low will move through the central Caribbean through Sun, then continue through the NW Caribbean by late Mon, accompanied by strong winds and building seas. NW Caribbean W of 85W .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 kt. Seas 3 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 ft. .SAT...NE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less, building to 3 ft after midnight. .MON...NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 25 to 35 kt. Seas 8 to 11 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...S of 18N, NE winds 10 to 15 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. 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. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. .SUN...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .MON...E winds 20 to 30 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 20 to 30 kt, becoming SE 10 to 20 kt after midnight. Seas 7 to 10 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .SUN...NE winds 10 to 15 kt, shifting to S in the afternoon. Seas 6 to 8 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SAT...Variable winds less than 10 kt, becoming SW less than 10 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft. .SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .MON...S winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and NE 15 to 25 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .SAT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 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...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 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. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...The northern part of tropical wave in E Hispaniola will move W to the Windward Passage by early Fri, then W of the region through Sat, accompanied by fresh to locally strong winds and seas to 8 ft S of 22N. Low pressure in the tropical Atlc will pass N of the Leeward Islands late Sat, possibly as a tropical cyclone, and reach the southern Bahamas by early Mon bringing strong winds and building seas to the waters S of 25N. A ridge along 28N will move N of the area early next week. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...SW winds 10 kt. Seas 3 ft. .TONIGHT...S winds 10 kt. Seas 3 ft. .FRI...S winds 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 kt. Seas 3 to 4 ft. .SUN...SE winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .THIS AFTERNOON...S winds 10 kt. Seas 3 to 5 ft. .TONIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .FRI...S winds 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds less than 10 kt. Seas 4 ft. .SAT...S winds less than 10 kt. Seas 4 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SUN...SE winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. .MON...E winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. Bahamas N of 22N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 3 ft. .FRI...E winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SAT...SE winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 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 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 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 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E 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 6 to 9 ft. .SUN NIGHT...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 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 15 kt. Seas 6 to 7 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .FRI...E winds 15 to 20 kt. Seas 6 to 7 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .MON...E winds 15 to 20 kt. Seas 7 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.