000 FZNT31 KNHC 151512 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1012 AM 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, 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 .TODAY...E winds less than 10 kt. Seas 3 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .WED...SE winds less than 10 kt. Seas 3 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .THU...NE winds less than 10 kt. Seas 2 ft or less. .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 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...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. .TONIGHT...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 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. Seas 3 to 5 ft. .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...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .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 8 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 15 kt, shifting to N in the afternoon. 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 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. Caribbean between 64W and 72W .TODAY...NE winds 10 to 15 kt. Seas 3 to 5 ft. .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 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED NIGHT...E winds 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 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 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 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 in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .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 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. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt, shifting to E after midnight. 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 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 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 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from 31N78W to North Florida near 28N80W and will sweep eastward across the waters north of 27N through Wed. Meanwhile, a deep layer trough will remain nearly stationary along about 57W- 58W through Tue before drifting westward and weakening Tue night through Thu. The next cold front will move into the NW waters Wed night then slide slowly SE and reach from near Bermuda through the NW Bahamas to W Cuba Fri morning, then drift southeast of the area through late Sat. Fresh to strong southwesterly winds will be ahead of the front in the western Atlantic. ATLC waters from 27N to 31N W of 77W .TODAY...NE winds 10 to 20 kt, shifting to S 10 to 15 kt in the afternoon. Seas 5 to 7 ft. .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 4 to 6 ft. .FRI...N winds 15 kt. Seas 5 to 6 ft. .FRI NIGHT...NE 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 kt. Seas 6 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...W of 70W, NW winds 10 to 15 kt, shifting to S in the afternoon. Elsewhere, SW winds 10 to 15 kt, shifting to W in the afternoon. Seas 6 to 8 ft. .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...NE winds 10 to 15 kt, shifting to E after midnight. Seas 7 to 10 ft. Bahamas N of 22N .TODAY...SE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt, shifting to SE after midnight. 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 15 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 20 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...W of 70W, S winds less than 10 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. .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 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 20 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft. .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, shifting to NE in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...W winds less than 10 kt. Seas 7 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...SE winds 10 kt. Seas 6 to 8 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 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.