662 FZNT31 KNHC 130855 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 455 AM EDT Thu Sep 13 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...Tropical Storm Isaac 1006 mb is centered near 15.4N 59.7W at 5 AM EDT, moving W at 15 kt. Maximum sustained winds are 40 kt with gusts to 50 kt. Isaac will move across the Lesser Antilles today, and is expected to gradually weaken as it moves further west across the Caribbean Sea through Sun night. High winds and rough seas will be primarily north of the center. NW Caribbean W of 85W .TODAY...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 kt. Seas 3 to 4 ft. .FRI...E winds 10 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 kt. Seas 2 ft or less. .SAT...E winds 10 kt. Seas 2 ft or less. .SAT NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .SUN...NE winds 10 kt. Seas 2 ft or less. .SUN NIGHT...NE winds 10 kt. Seas 2 ft or less. .MON...NE winds less than 10 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 ft. .TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 ft. .FRI...E winds 10 to 15 kt S of 18N, and NE less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .FRI NIGHT...NE winds 10 to 20 kt S of 18N, and NE less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 25 to 35 kt S of 18N, and NE less than 10 kt elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE winds 15 to 25 kt S of 18N, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. .SAT...NW winds 10 to 15 kt within 90 nm of coast of Colombia, and N 15 to 25 kt elsewhere. Seas 4 to 6 ft. .SAT NIGHT...W winds 10 to 15 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 4 to 6 ft. .SUN...S winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. SW Caribbean S of 11N .TODAY...NE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...SE winds 10 kt. Seas 3 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 ft. .SAT...Variable winds less than 10 kt. Seas 3 ft. .SAT NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .MON...S winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. NE winds 10 kt Gulf of Venezuela, and N 25 to 35 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .FRI...TROPICAL STORM CONDITIONS EXPECTED. Gulf of Venezuela, Variable winds less than 10 kt, becoming NE 10 kt in the afternoon. Elsewhere, NW winds 25 to 35 kt. Seas 2 ft or less Gulf of Venezuela, and 6 to 8 ft elsewhere. .FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. Gulf of Venezuela, variable winds less than 10 kt. Elsewhere, S winds 25 to 35 kt. Seas 2 ft or less Gulf of Venezuela, and 6 to 9 ft elsewhere. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds less than 10 kt Gulf of Venezuela, and SE 25 to 35 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 6 to 9 ft elsewhere. .SAT NIGHT...Gulf of Venezuela, N winds 10 kt. Elsewhere, SE winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .SUN...Gulf of Venezuela, Variable winds less than 10 kt, becoming N 10 kt in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .SUN NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. E winds 30 to 40 kt. Seas 9 to 14 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt. Seas 9 to 14 ft, subsiding to 8 to 11 ft after midnight. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...SE 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 20 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 25 to 35 kt. Seas 6 to 8 ft. .TONIGHT...SE winds 20 to 30 kt. Seas 5 to 7 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 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 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. Synopsis for the the SW N ATLC including the Bahamas .SYNOPSIS...Hurricane Florence 956 mb is centered north of the area near 32.8N 74.7W at 5 AM EDT, moving NW at 13 kt. Maximum sustained winds are 95 kt with gusts to 115 kt. Large swell generated by the hurricane will affect the waters north of the Bahamas and northern Florida. ATLC waters from 27N to 31N W of 77W .TODAY...NW winds 10 to 20 kt. Seas 9 to 14 ft, subsiding to 8 to 11 ft in the afternoon. .TONIGHT...SW winds 15 to 25 kt. Seas 7 to 10 ft. .FRI...SW winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...W winds 15 to 25 kt. Seas 5 to 7 ft. .SAT NIGHT...S winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...S winds 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W ...TROPICAL STORM WARNING... .TODAY...SW winds 20 to 30 kt W of 70W, and SE 10 to 20 kt elsewhere. Seas 8 to 13 ft W of 70W, and 6 to 9 ft elsewhere. .TONIGHT...S winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 7 to 10 ft W of 70W, and 6 to 7 ft elsewhere. .FRI...SE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...SW winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 6 to 8 ft. .SAT NIGHT...SE winds 15 to 25 kt W of 70W, and NE 10 to 15 kt elsewhere. 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 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. Bahamas N of 22N .TODAY...SE winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...E winds 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SAT...SE winds less than 10 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 3 to 5 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. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SE winds 10 to 15 kt. Seas 6 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 7 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. .SAT...SE winds less than 10 kt. Seas 6 to 7 ft. .SAT NIGHT...S winds less than 10 kt. Seas 6 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 5 ft.