000 FZNT31 KNHC 152052 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 352 PM EST Tue Dec 15 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...Weakening high pressure north of the area is supporting modest winds and seas across the basin. By Wed night through Thu morning, high pressure will begin to re-strengthen to the north, and tradewinds offshore of 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 Fri and Sat. NW Caribbean W of 85W .TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .WED...SE winds less than 10 kt. Seas 3 ft. .WED NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .THU...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, building to 3 ft in the afternoon. .THU NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 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 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, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...S of 18N, E winds 10 to 15 kt,Seas 3 to 5 ft. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt after midnight,Seas 2 ft or less, building to 3 to 4 ft after midnight. .WED...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED 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 3 to 4 ft in the evening, subsiding to 2 ft or less. .THU...NE winds 10 to 15 kt S of 18N, and NE less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .THU NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 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 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. 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 8 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...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 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 8 ft. .SUN...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. Caribbean between 64W and 72W .TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 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 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 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .WED...E winds less than 10 kt. Seas 4 to 6 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 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 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 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .WED...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 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 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from 30N69W to 29N74W. A 1013 mb low is located off the northeast Florida coast near 30N80W with a warm front extending east of the low to 29N74W. A weak cold front is over Florida. The low is expected to lift northward tonight and drag the cold front across the Atlantic waters near the Bahamas through Wed. By Wed night, the cold front is expected to dissipate. The next cold front will move off the northeast Florida coast by Wed, then slide slowly SE and reach from near Bermuda through the NW Bahamas to W Cuba Thu, then drift southeast of the area through late Sat. Fresh to strong southwesterly winds will be ahead of the front in the western Atlantic N of 28N. ATLC waters from 27N to 31N W of 77W .TONIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 8 ft. .WED...SW winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. .THU...NW winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NW winds 10 to 20 kt. Seas 5 to 6 ft. .FRI...N winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft. .SUN...SE winds less than 10 kt, shifting to S in the afternoon. Seas 5 to 6 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 5 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...S winds less than 10 kt. Seas 6 to 8 ft. .WED...S winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 6 to 8 ft. .WED NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .THU...SW winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...SW 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 9 ft. .SUN...SE winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...SE winds less than 10 kt, shifting to S after midnight. Seas 5 to 7 ft. Bahamas N of 22N .TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .THU...S winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .FRI...N winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SE winds less than 10 kt W of 70W, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt. Seas 4 to 5 ft. .FRI...SE winds less than 10 kt, shifting to NW in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...N winds 10 to 15 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 .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...E winds 10 to 15 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, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds less than 10 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 3 to 5 ft. .SAT NIGHT...NE 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 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .WED...SE winds 10 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 kt. Seas 5 to 6 ft. .THU...E winds 10 kt. Seas 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 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...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.