144 FZNT31 KNHC 202111 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 511 PM EDT Thu Sep 20 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...A tropical wave along 71W-72W will move west across the central Caribbean through Fri, and then over central America Sun. Strong wind gusts are possible near showers and thunderstorms associated with this tropical wave across the eastern Caribbean through Fri. Meanwhile, high pressure building from the central Atlc into the central Bahamas will support moderate to fresh trade winds and building seas across the entire basin now through Fri, before winds diminish slightly Sat and then more significantly on Sun. NW Caribbean W of 85W .TONIGHT...E winds 10 to 20 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 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. 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. Caribbean N of 15N between 72W and 85W .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .FRI NIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .SAT...E winds 10 to 20 kt S of 18N, and E less than 10 kt elsewhere. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .FRI...E winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .SAT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. 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 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 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .TONIGHT...N winds less than 10 kt, shifting to NE after midnight. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt, shifting to W in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .SAT...W winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...N winds less than 10 kt. Seas 5 to 7 ft. .SUN...E winds less than 10 kt, shifting to NW in the afternoon. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .MON...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .TUE...SE winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TONIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .FRI...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .FRI NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .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 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 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 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 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 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Synopsis for the the SW N ATLC including the Bahamas .SYNOPSIS...Low pressure moving off the Carolinas overnight has dragged a weak early season frontal boundary from 31N66W to 29N79W. The front will sink SE to waters north of 27N through Fri before the front dissipates. The low will move SE to near 29N66W by Sat morning then drift W and should slowly weaken through Mon. NE swell will move into the open waters east of the Bahamas Fri through early next week. ATLC waters from 27N to 31N W of 77W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...E winds 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 kt. Seas 5 to 6 ft. .SUN...E winds 10 kt. Seas 5 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .MON...NE winds 10 to 15 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 5 to 6 ft. .TUE NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...W of 70W, NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Elsewhere, NW winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .MON...E winds 10 to 15 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...SE winds 10 to 15 kt. Seas 5 to 7 ft. Bahamas N of 22N .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .FRI...E winds 10 to 15 kt. Seas 2 ft or less. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SAT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SUN...E winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .MON...E winds less than 10 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...E winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...N winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft. .SUN...S winds less than 10 kt. Seas 6 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft. .MON...SE winds less than 10 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .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...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...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 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 kt. Seas 4 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...E winds 10 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 kt. Seas 4 to 6 ft. .SUN...E winds less than 10 kt. Seas 5 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .MON...E winds 10 kt. Seas 6 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 7 to 8 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.