000 FZNT31 KNHC 190249 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1049 PM EDT Fri Aug 18 2023 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 Atlantic from 07N to 19N between 55W and 64W .SYNOPSIS...Moderate to fresh trade winds will prevail over the eastern and central Caribbean through early next week, increasing to fresh to strong over the NE and north-central basin Sat night through Mon as a strong tropical wave moves across the E Caribbean. Looking ahead, a low pressure, AL99, will move NE of Puerto Rico early next week, supporting moderate to fresh SE winds in the far E Caribbean Mon night through mid- week. Although environmental conditions are only marginally conducive for further development, a tropical depression could form during the next day or so while it moves west-northwestward at 10 to 15 kt across the central tropical Atlantic. Thereafter, upper-level winds are forecast to become unfavorable for any further development. NW Caribbean W of 85W .OVERNIGHT...NE winds 10 to 15 kt. Seas 3 ft. .SAT...NE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. .SUN...Variable winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...E winds less than 10 kt. Seas 3 ft. .MON NIGHT...NE winds less than 10 kt. Seas 3 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...NE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .OVERNIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. S of 18N, seas 3 to 5 ft. Elsewhere, seas 3 ft in the morning, subsiding to 2 ft or less. .SAT NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. S of 18N, seas 3 to 5 ft. Elsewhere, seas 2 ft or less, building to 3 ft after midnight. .SUN...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE 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 less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .OVERNIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...S winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .OVERNIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .SAT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .SUN...N winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .MON...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...N winds less than 10 kt, shifting to S after midnight. Seas 3 to 5 ft. .TUE...SW winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. Caribbean between 64W and 72W .OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SAT NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SUN...Gulf of Venezuela, E winds 10 to 15 kt, shifting to NE in the afternoon. Elsewhere, E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .MON...SE winds 10 to 15 kt. Seas 6 to 8 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...SE winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .WED...E winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .OVERNIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...SE 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 5 ft. .TUE NIGHT...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 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Fresh to strong tradewinds will pulse off Hispaniola each evening into early next week. Fresh tradewinds south of 25N will persist through Sat. A strong tropical wave could enhance winds and seas near the Leeward and Virgin Islands over the weekend, and north of Puerto Rico early next week. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 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 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .WED...NE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .OVERNIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...W of 70W, SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, 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...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .WED...N winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. Bahamas N of 22N .OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 3 to 5 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 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 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 15 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft. .WED NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 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. .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 15 kt. Seas 5 to 7 ft. .WED...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .WED NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...E winds 15 to 20 kt. Seas 7 to 8 ft. .SAT...E winds 15 to 20 kt. Seas 7 to 8 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 15 to 20 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 6 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...SE winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .WED...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft. .WED NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.