000 FZNT31 KNHC 310909 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 509 AM EDT Tue Oct 31 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...A trough of low pressure over the eastern Caribbean Sea continues to produce a large area of showers and thunderstorms. Environmental conditions appear conducive for further development during the next several days while the system moves westward over the central and southwestern Caribbean Sea, and a tropical depression is likely to form by the latter part of this week. Otherwise, light to gentle winds are expected across the basin through early Wed, with the exception of moderate to locally fresh E to SE winds over the eastern Caribbean behind the above mentioned trough. A cold front will enter the NW Caribbean late Wed morning, and begin to stall from eastern Cuba to the Gulf of Honduras on Thu, then drift westward Fri and Sat. Fresh to strong N to NE winds and rough seas will follow the front. NW Caribbean W of 85W .TODAY...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less. .TONIGHT...N winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .WED...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...NE winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. Caribbean N of 15N between 72W and 85W .TODAY...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt. Seas 2 ft or less. .WED...N winds less than 10 kt S of 18N, and NE 10 to 15 kt elsewhere. Seas 2 ft or less. .WED NIGHT...NE winds 10 to 20 kt. Seas 3 ft, building to 4 to 6 ft after midnight. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 15 to 25 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. Caribbean from 11N to 15N W of 72W .TODAY...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .WED...NW winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...NW winds less than 10 kt. Seas 2 ft or less. .THU...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, building to 3 to 4 ft in the afternoon. .THU NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .TODAY...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .WED...Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Seas 2 ft or less. .WED NIGHT...NW winds less than 10 kt. Seas 2 ft or less. .THU...NW winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...W winds 10 to 15 kt. Seas 2 ft or less. .FRI...W winds 10 to 15 kt. Seas 2 ft or less, building to 3 to 4 ft in the afternoon. .FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TODAY...E winds less than 10 kt Gulf of Venezuela, and SE 10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .WED...Gulf of Venezuela, E winds 10 kt in the morning, becoming variable winds less than 10 kt. Elsewhere, SE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .WED NIGHT...Gulf of Venezuela, Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Elsewhere, SE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .THU...SE winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT 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 .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...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 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 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TONIGHT...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 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. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A well-defined area of low pressure is located near 27N75.5W or about 80 miles east of the northwestern Bahamas. This system is forecast to turn slowly northward and then northeastward by the middle part of this week while weakening. A surface trough extends from the low southward across the central Bahamas. A strong cold front is expected to enter the NW waters early Wed morning, reach from Bermuda to the central Bahamas early Thu morning, then stall from 31N60W to the SE Bahamas on Thu. Strong winds, with gusts to gale-force, and rough seas are expected behind the front through Thu night. ATLC waters from 27N to 31N W of 77W .TODAY...N winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 15 kt. Seas 4 to 5 ft. .WED...N winds 20 to 30 kt. Seas 5 to 7 ft, building to 7 to 10 ft in the afternoon. .WED NIGHT...N winds 20 to 30 kt. Seas 8 to 12 ft. .THU...NE winds 20 to 25 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 8 to 10 ft. .FRI...NE winds 15 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 8 to 10 ft. .SAT...E winds 15 to 25 kt. Seas 8 to 10 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED...W winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...N winds 15 to 25 kt W of 70W, and W 15 to 25 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 7 ft elsewhere. .THU...NE winds 15 to 25 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 9 to 12 ft. .FRI...NE winds 15 to 25 kt. Seas 9 to 11 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 8 to 12 ft. .SAT...E winds 10 to 20 kt. Seas 8 to 12 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. Bahamas N of 22N .TODAY...W winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .TONIGHT...NW winds less than 10 kt. Seas 3 ft. .WED...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .THU...NE winds 20 to 30 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 20 to 30 kt. Seas 6 to 9 ft. .FRI...NE winds 15 to 25 kt. Seas 6 to 9 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 20 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...W of 70W, S winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Elsewhere, SE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...SW winds less than 10 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 4 to 5 ft. .WED...W winds less than 10 kt W of 70W, and S 10 to 15 kt elsewhere. Seas 3 to 5 ft. .WED NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft W of 70W, and 4 to 5 ft elsewhere. .THU...E winds 20 to 30 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 20 to 30 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. .SAT...E winds 10 to 15 kt. Seas 7 to 9 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 5 ft. .TONIGHT...E winds 10 kt. Seas 4 to 5 ft. .WED...E winds 10 kt. Seas 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.