000 FZNT31 KNHC 160921 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 421 AM EST Wed Dec 16 2020 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...Weak high pressure centered NE of the Bahamas is supporting moderate to fresh winds across the central Caribbean. High pressure will begin to strengthen to the north of the area Wed night through Thu, and will freshen tradewinds across most of the basin. Winds near Colombia will begin to pulse to strong each night through Sat night. A weakening cold front will move slowly SE across the Yucatan Channel and NW Caribbean Thu night through Fri before dissipating. Strong high pressure north of the front will produce fresh to strong NE tradewinds across much of the area through Sun. NW Caribbean W of 85W .TODAY...SE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt. Seas 3 ft. .THU...NE winds less than 10 kt. Seas 3 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE 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 5 ft. Caribbean N of 15N between 72W and 85W .TODAY...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt S of 18N, and NE less than 10 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. .THU...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. .THU NIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .THU...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds less than 10 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 15 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 8 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A weak frontal boundary extends from a 1013 mb low offshore of Georgia near 31N79.5W S-SW to near Fort Pierce, Florida. The low will lift northeastward today with the frontal boundary remaining nearly stationary and dissipating. Meanwhile, a deep layer trough from 25N58W to the NE Caribbean will drift westward across the SE waters and weaken by Thu morning. The next cold front will move off the northeast Florida coast tonight, then slide slowly SE and reach from near Bermuda through the central Bahamas to central Cuba Fri. Expect fresh to strong southwesterly winds ahead of the front N of 28N this evening through Thu. The front will gradually weaken and become E to W aligned along 24N Sun morning. ATLC waters from 27N to 31N W of 77W .TODAY...SW winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft. .THU...W winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 ft. .FRI...N winds 10 to 20 kt. Seas 6 to 7 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 6 ft. .SAT NIGHT...E winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 5 to 6 ft. .SUN...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .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 6 to 9 ft. .TONIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SW winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NW winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 15 kt. Seas 7 to 9 ft. .SAT NIGHT...E winds less than 10 kt. Seas 6 to 8 ft. .SUN...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 6 to 8 ft. Bahamas N of 22N .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 kt. Seas 3 to 5 ft. .THU...S winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...NE winds 10 to 20 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, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SE winds less than 10 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .THU...SE winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .FRI...E winds less than 10 kt, shifting to N in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. 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 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds less than 10 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 kt. Seas 5 to 6 ft. .THU...E winds 10 kt. Seas 5 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 7 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 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.