000 FZNT31 KNHC 111539 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1139 AM EDT Sun Aug 11 2024 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 19N W of 55W, the N Atlantic from 19N to 31N W of 55W including the 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 Atlantic from 07N to 19N W of 55W .SYNOPSIS...Moderate to locally fresh trades will prevail across the basin through Mon. A robust tropical wave currently in the central Atlantic is expected to gradually develop over the next few days, and a tropical depression is likely to form within the next couple of days while the system approaches and then moves near or over the Leeward Islands. Interests on these islands should continue to monitor the progress of this system, and watches or warnings could be required for portions of the area as soon as later today. The system could approach portions of the Greater Antilles by the middle of the week. Regardless of development, gale conditions are expected to begin affecting the extreme NE tropical waters beginning Mon night. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...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 less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds less than 10 kt. Seas 3 ft. .WED...E winds less than 10 kt. Seas 3 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 ft. .THU...NE winds less than 10 kt. Seas 3 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...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...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...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...NE winds less than 10 kt. Seas 3 to 5 ft. .THU...E winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...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 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 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 to 4 ft. SW Caribbean S of 11N .THIS AFTERNOON...SW winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .MON...Variable winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 3 ft. .TUE...Variable winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .WED...W winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .THU...Variable winds less than 10 kt. Seas 3 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 3 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds less than 10 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft after midnight. Elsewhere, seas 3 to 5 ft. .MON...Gulf of Venezuela, E winds 10 to 20 kt, becoming W less than 10 kt in the afternoon,Seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, E winds 10 to 20 kt, seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...GALE WARNING... .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 15 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...In the Caribbean, NE winds 15 to 20 kt, shifting to S to SW in the afternoon. In the Atlc, E winds 20 to 35 kt. Seas 6 to 8 ft in the Caribbean, and 9 to 13 ft in the Atlc. .TUE NIGHT...In the Caribbean, S to SW winds 20 to 25 kt. Seas 6 to 9 ft. In the Atlc, SE to S winds 30 to 40 kt. Seas 8 to 12 ft. .WED...SE winds 15 to 25 kt. Seas 7 to 10 ft. .WED NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .THU...SE winds 10 to 20 kt. Seas 5 to 7 ft. .THU 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...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...S winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Atlantic high pressure centered NE of Bermuda extends a ridge southwestward across the Northern Bahamas and central Florida, and will remain in place through Mon, then shift NE and weaken through Wed. This pattern will promote gentle to moderate winds and slight to moderate seas, except for fresh to strong winds during the evening and nighttime hours along the north coast of Hispaniola through Mon. A robust tropical wave currently in the central Atlantic is expected to gradually develop over the next few days, and a tropical depression is likely to form by within the next couple of days while the system approaches and then moves near or over the Leeward Islands. Interests on these islands should continue to monitor the progress of this system, and watches or warnings could be required for portions of the area as soon as later today. The system could approach portions of the Greater Antilles by the middle of the week. Regardless of development, gale conditions are expected to begin affecting the SE Atlantic waters and portions of the extreme NE Caribbean beginning early Wed morning. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...SW winds 10 kt. Seas 3 to 4 ft. .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .MON...S winds 10 to 15 kt, shifting to SW in the afternoon. Seas 3 to 4 ft. .MON NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .TUE...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft. .WED...W winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .THU...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...SE winds 10 kt. Seas 4 to 5 ft. .TONIGHT...SE winds 10 kt. Seas 4 to 5 ft. .MON...S winds 10 kt. Seas 4 to 5 ft. .MON NIGHT...S winds less than 10 kt. Seas 4 ft. .TUE...SW winds less than 10 kt. Seas 4 ft. .TUE NIGHT...SW winds less than 10 kt. Seas 4 to 5 ft. .WED...SW winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...SW winds less than 10 kt. Seas 5 to 7 ft. .THU...SW winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...E to SE winds 20 to 25 kt, shifting to E 25 to 35 kt late. Seas 10 to 16 ft. Bahamas N of 22N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 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, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft. .WED...E winds less than 10 kt. Seas 3 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...S of 23N, NE to E winds 25 to 35 kt, increasing to 35 to 45 kt late. N of 23N, E winds 20 to 30 kt. Seas 11 to 17 ft. .THU...E winds 35 to 45 kt, shifting to SE to S in the afternoon. Seas 12 to 18 ft. .THU NIGHT...SW winds 20 to 30 kt S of 23N, and SW 35 to 45 kt N of 23N. Seas 12 to 18 ft. ATLC waters S of 22N W of 65W ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...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 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .WED...S of 21N, NE winds 25 to 30 kt, becoming N to NE 35 to 45 kt in the afternoon. N of 21N, NE to E winds 20 to 30 kt. Seas 9 to 13 ft. .WED NIGHT...S of 21N, W winds 35 to 45 kt. N of 21N, NE winds 35 to 45 kt, shifting to W late. Seas 10 to 16 ft. .THU...S of 21N, SW winds 20 to 30 kt. N of 21N, SW winds 35 to 45 kt, diminishing to 20 to 30 kt in the afternoon. Seas 11 to 17 ft. .THU NIGHT...SW winds 15 to 25 kt. Seas 7 to 10 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 15 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .TUE...E winds 15 to 25 kt. Seas 8 to 12 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .WED...SE winds 20 to 30 kt. Seas 8 to 11 ft. .WED NIGHT...SE winds 15 to 25 kt. Seas 7 to 10 ft. .THU...SE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft.