000 FZNT31 KNHC 271500 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1100 AM EDT Fri Oct 27 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...Low pressure continues to develop off eastern Honduras along a stalled frontal boundary reaching from the Windward Passage. The low may become a tropical cyclone before moving over western Cuba through late Sat, accompanied by strong winds, building seas and scattered to numerous showers an thunderstorms. A new cold front will penetrate the NW Caribbean in the wake of low, bringing fresh northerly winds and seas to 8 ft to the Yucatan Channel. Winds and seas will diminish elsewhere through early next week as high pressure N of the region is impacting by the emerging low pressure. NW Caribbean W of 85W .THIS AFTERNOON...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...NW winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...NW winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .MON...N winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S of 18N, SE winds 10 to 15 kt, shifting to E after midnight. Elsewhere, SW winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...Within 90 nm of coast of Colombia, 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. .SAT...Within 90 nm of coast of Colombia, E winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...NE winds 10 to 15 kt within 90 nm of coast of Colombia, and N less than 10 kt elsewhere. Seas 3 to 4 ft. .SUN...NE winds less than 10 kt. Seas 3 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 3 ft. .MON...NE winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. SW Caribbean S of 11N .THIS AFTERNOON...W winds less than 10 kt. Seas 3 to 4 ft, subsiding to 2 ft or less. .TONIGHT...N winds less than 10 kt. Seas 2 ft or less. .SAT...NW winds less than 10 kt. Seas 3 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...NW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...NW winds less than 10 kt. Seas 3 ft. .MON...NW winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .TUE...W winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. 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...E winds 10 to 15 kt. Seas 3 to 4 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .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. .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 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 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...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 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 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 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A cold front extending from just E of Bermuda to the Windward Passage will stall, weaken then lift northward through the central Bahamas by late today ahead of low pressure developing in the NW Caribbean. The low pressure will move across western Cuba into the Bahamas by late Sat, ahead of a cold front moving through the Gulf of Mexico. The front will reach from 30N75W to central Cuba by Sun afternoon. Gale force winds are possible along the front N of 27N at that time as another area of low pressure develops along the front and lifts N of the area. Winds and seas diminish through mid week as the front weakens and stalls the low pressure becomes diffuse along the front. ATLC waters from 27N to 31N W of 77W .TODAY...NE to E winds 10 kt. Seas 3 to 4 ft. .TONIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 15 kt. Seas 4 ft. .SAT NIGHT...SE to S winds 15 to 20 kt. Seas 4 to 6 ft. .SUN...S to SW winds 20 to 25 kt, shifting to W to NW behind front. Seas 6 to 9 ft. .SUN NIGHT...NW winds 20 to 25 kt. Seas 7 to 10 ft in NW swell. .MON...N winds 15 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .SUN...S winds 25 to 35 kt, diminishing to 20 to 30 kt and shifting NW behind the front. Seas building to 8 to 10 ft. Scattered showers and isolated thunderstorms. .SUN NIGHT...SW winds 20 to 30 kt, becoming W to NW 20 to 25 kt behind front. Seas 7 to 10 ft in S swell. .MON...NW winds 20 to 25 kt, becoming N 15 kt in the afternoon. Seas 7 to 10 ft in SW to W swell. .MON NIGHT...N to NE winds 10 to 15 kt. Seas 6 to 8 ft in W to NW swell. .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. Bahamas N of 22N .THIS AFTERNOON...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft. .SAT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft. Scattered showers. .SUN...S winds 20 to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...SW winds 15 to 20 kt, shifting to NW late. Seas 3 to 5 ft. .MON...N winds 15 to 20 kt. Seas 3 to 4 ft. .MON NIGHT...N to NE winds 15 to 20 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...NE winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 5 to 6 ft. .TONIGHT...E winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 5 to 6 ft. .SAT...E winds less than 10 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SW winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. ATLC waters S of 22N W of 65W .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. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 6 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 ft. .SUN...E winds 10 kt. Seas 4 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.