176 FZNT31 KNHC 120309 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1109 PM EDT Tue Sep 11 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 999 mb centered near 14.5N 52.3W at 11 PM EDT is moving W at 14 kt. Maximum sustained winds are 55 kt with gusts to 65 kt. Isaac will move across the Lesser Antilles on Thursday, and is expected to gradually weaken through Fri night. High winds and rough seas, primarily north of the center, will accompany the tropical storm as it moves across the region. NW Caribbean W of 85W .OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...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...E winds 10 to 15 kt. Seas 2 ft or less. .SAT...E winds less than 10 kt. Seas 2 to 3 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .SUN...NE winds 10 to 15 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .OVERNIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. .WED...E winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 2 ft or less. .THU...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 ft. .THU NIGHT...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 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...E winds 20 to 30 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. Caribbean from 11N to 15N W of 72W .OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...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...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...SW winds 10 kt within 90 nm of coast of Colombia, and W 20 to 30 kt elsewhere. Seas 3 to 5 ft. SW Caribbean S of 11N .OVERNIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .THU...E winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 ft. .FRI...E winds less than 10 kt, shifting to S in the afternoon. 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...Variable winds less than 10 kt, becoming W less than 10 kt after midnight. Seas 3 ft. .SUN...SW winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W ...TROPICAL STORM WARNING... .OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds less than 10 kt Gulf of Venezuela, and NE 10 to 20 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds less than 10 kt Gulf of Venezuela, and N 30 to 40 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...Variable winds less than 10 kt Gulf of Venezuela, and SE 20 to 30 kt elsewhere. Seas 4 to 6 ft. .SUN...SE winds SE 10 to 20 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...TROPICAL STORM WARNING... .OVERNIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to 25 kt. Seas 6 to 8 ft. .WED...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 8 to 11 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 8 to 13 ft. .THU...TROPICAL STORM CONDITIONS EXPECTED. E winds 35 to 45 kt. Seas 9 to 14 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 30 to 40 kt. Seas 8 to 11 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 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 4 to 6 ft. .SUN...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 ...TROPICAL STORM WARNING... .OVERNIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to 25 kt. Seas 4 to 6 ft. .WED...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 6 to 8 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 6 to 9 ft. .THU...TROPICAL STORM CONDITIONS EXPECTED. SE winds 35 to 45 kt. Seas 6 to 8 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 30 to 40 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 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N ATLC including the Bahamas .SYNOPSIS...Hurricane Florence 946 mb is centered near 28.4N 68.7W at 11 PM EDT, moving WNW at 15 kt. Maximum sustained winds are 120 kt gusts to 145 kt. Florence will move nortwest between the Bahamas and Bermuda through through Wed night, then move north of the area Thu morning. Outside of the path of Florence, large dangerous swell generated by the hurricane will affect the Bahamas and northern Florida. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...Variable winds less than 10 kt. Seas 4 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 5 to 7 ft, building to 7 to 10 ft in the afternoon. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 10 to 20 kt. Seas 9 to 14 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 10 to 20 kt. Seas 8 to 13 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...SW winds 15 to 25 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...HURRICANE WARNING... .OVERNIGHT...HURRICANE CONDITIONS. W of 70W, N winds 35 to 45 kt, increasing to 60 to 70 kt after midnight. Elsewhere, SE winds 75 to 95 kt. Seas 9 to 14 ft W of 70W, and 18 to 28 ft elsewhere. .WED...HURRICANE CONDITIONS EXPECTED. W of 70W, NW winds 85 to 105 kt,Seas 16 to 26 ft in the afternoon. Elsewhere, SE winds 80 to 100 kt, diminishing to 30 to 40 kt in the afternoon,Seas 11 to 16 ft in the afternoon. Seas 16 to 21 ft. .WED NIGHT...HURRICANE CONDITIONS EXPECTED. W of 70W, W winds 85 to 105 kt, becoming SW 45 to 55 kt after midnight,Seas 14 to 19 ft, subsiding to 11 to 16 ft after midnight. Elsewhere, SE winds 20 to 30 kt,Seas 8 to 13 ft, subsiding to 7 to 10 ft after midnight. .THU...TROPICAL STORM CONDITIONS EXPECTED. SW winds 20 to 30 kt W of 70W, and SE 10 to 20 kt elsewhere. W of 70W, seas 8 to 13 ft, subsiding to 7 to 10 ft in the afternoon. Elsewhere, seas 6 to 9 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 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...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...SW winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 6 to 8 ft. .SUN...S winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 6 to 8 ft. Bahamas N of 22N .OVERNIGHT...NE winds 10 kt. Seas 3 to 5 ft. .WED...E winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...SE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...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 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas ...TROPICAL STORM WARNING... .OVERNIGHT...TROPICAL STORM CONDITIONS EXPECTED. NW winds 15 to 25 kt W of 70W, and SW 20 to 30 kt elsewhere. Seas 8 to 11 ft. .WED...S winds 15 to 25 kt. Seas 6 to 9 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...W of 70W, SE winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft. .SAT NIGHT...W of 70W, SE winds 10 to 15 kt. Elsewhere, E winds less than 10 kt, shifting to SE after midnight. Seas 6 to 7 ft. .SUN...W of 70W, S winds 10 to 15 kt. Elsewhere, SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 6 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 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 15 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 15 to 25 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 8 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 9 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft. .SUN...SE winds 10 kt. Seas 5 ft.