000 FZNT31 KNHC 312002 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 402 PM 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...Shower and thunderstorm activity in association with a trough of low pressure over the E Caribbean Sea has diminished and not become any better organized this afternoon. Although environmental conditions appear marginally conducive for further development during the next several days while the system moves westward over the central and SW Caribbean Sea, a tropical depression could form by the latter part of this week. Otherwise, moderate or weaker winds are expected across the basin through tomorrow morning. At that time, a strong cold front will enter the NW Caribbean, move from E Cuba to the Gulf of Honduras Thu morning, then drift westward Fri morning, before dissipating on Sat. Strong to near gale NE winds and rough seas will follow the front through Fri night before diminishing on Sat. NW Caribbean W of 85W .TONIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. 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 AND THU...NE winds 15 to 25 kt. Seas 6 to 8 ft. .THU THROUGH SUN...E winds 15 to 25 kt. Seas 6 to 9 ft. Caribbean N of 15N between 72W and 85W .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 AND THU...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 4 to 6 ft. .THU THROUGH SUN...E winds 15 to 25 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .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 AND THU...N winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .FRI THROUGH SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TONIGHT...Variable winds less than 10 kt, becoming NW less than 10 kt after midnight. Seas 2 ft or less. .WED...NW winds less than 10 kt. Seas 2 ft or less. .WED NIGHT AND THU...W winds 10 to 15 kt. Seas 2 ft or less. .THU THROUGH SUN...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...Variable winds less than 10 kt, becoming SW less than 10 kt after midnight. Seas 3 to 4 ft. Caribbean between 64W and 72W .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .WED...Gulf of Venezuela, NE 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 AND THU...S winds less than 10 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .THU THROUGH SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .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 AND THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU THROUGH SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .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 AND THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU THROUGH SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A weak low is centered just northeast of the NW Bahamas this afternoon. This system will move northeastward ahead of an approaching strong cold front. The front is expected to enter the NW waters late tonight, reach from near Bermuda to the central Bahamas Thu morning, then gradually move back westward to the NW Bahamas by Fri morning, before dissipating on Sat. Strong to near gale NE winds are expected behind the front through Sat. ATLC waters from 27N to 31N W of 77W .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 AND THU...NE winds 20 to 30 kt. Seas 8 to 13 ft. .THU THROUGH SUN...E winds 15 to 25 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...W winds 10 to 15 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 4 to 6 ft. .WED...W winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT AND THU...NE winds 20 to 30 kt W of 70W, and N 15 to 25 kt elsewhere. Seas 7 to 10 ft. .THU THROUGH SUN...E winds 15 to 25 kt. Seas 7 to 10 ft. Bahamas N of 22N .TONIGHT...NW winds less than 10 kt. Seas 3 ft. .WED...N winds 10 to 20 kt. Seas 3 ft. .WED NIGHT AND THU...NE winds 20 to 30 kt. Seas 5 to 7 ft. .THU THROUGH SUN...E winds 20 to 30 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. .WED...W of 70W, SW winds 10 to 15 kt, shifting to W in the afternoon. Elsewhere, S winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft W of 70W, and 4 to 5 ft elsewhere. .THU...NE winds 20 to 30 kt W of 70W, and SE less than 10 kt elsewhere. Seas 7 to 10 ft W of 70W, and 4 to 6 ft elsewhere. .THU THROUGH SUN...E winds 20 to 30 kt. Seas 6 to 9 ft. ATLC waters S of 22N W of 65W .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 AND THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU THROUGH SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT AND THU...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU THROUGH SUN...SE winds 10 to 20 kt. Seas 5 to 7 ft.