000 FZNT31 KNHC 200839 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 339 AM EST Mon Jan 20 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...As the pressure gradient between low pressure over N Colombia and high pressure centered NE of the Caribbean weakens, gales will end this morning off the coast of Colombia. Long- period N swell will continue to create very large seas and hazardous marine conditions across the Tropical North Atlantic and along Atlantic facing parts of the Lesser Antilles and Puerto Rico today, before gradually diminishing into mid- week. A cold front will enter the NW Caribbean this afternoon and reach a line from eastern Cuba to the N Coast of Honduras by Tue evening, bringing strong N winds and higher seas. NW Caribbean W of 85W .TODAY...NE winds less than 10 kt, shifting to N in the afternoon. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...N winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED...N winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .THU...E winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .FRI...Variable winds less than 10 kt. Seas 3 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 20 kt S of 18N, and NE less than 10 kt elsewhere. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .TODAY...Within 90 nm of coast of Colombia, E winds 20 to 30 kt, diminishing to 15 to 20 kt in the afternoon. Elsewhere, NE winds 15 to 25 kt. Seas 8 to 11 ft. .TONIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 6 to 8 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. SW Caribbean S of 11N .TODAY...N winds 10 to 15 kt. Seas 7 to 10 ft. .TONIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...N winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .WED...N winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU...N winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...N winds less than 10 kt. Seas 4 to 5 ft. .FRI...N winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TODAY...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .TUE...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .TUE NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...E winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...E winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE 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 20 kt. Seas 8 to 13 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .TUE...E winds 10 to 15 kt. Seas 7 to 10 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt, shifting to SE after midnight. Seas 4 to 6 ft. .THU...SE winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...E winds 10 to 15 kt. Seas 8 to 11 ft. .TUE...E winds 10 to 15 kt. Seas 7 to 10 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...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, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Large seas E of the Turks and Caicos Islands will gradually subside today from W to E. A cold front from W of Bermuda to Melbourne, Florida early this morning will reach the NW Bahamas this afternoon, then move through the Bahamas and into eastern Cuba by Tue evening. Low pressure is forecast to develop along this front to the east of the Bahamas Tue into Wed. The pressure gradient between this low and high pressure building into the SE U.S. will be quite tight, causing gale force northerly winds to develop by Tue evening N of the Bahamas. Strong to near gale force N winds are also possible along the east coast of Florida and the NW Bahamas. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...N winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...N winds 15 to 25 kt. Seas 7 to 10 ft. .TUE NIGHT...N winds 25 to 35 kt. Seas 9 to 14 ft. .WED...NE winds 20 to 30 kt. Seas 12 to 16 ft. .WED NIGHT...NE winds 20 to 25 kt. Seas 11 to 12 ft. .THU...NE winds 15 to 20 kt. Seas 9 to 11 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 8 to 9 ft. .FRI...SE winds 10 kt. Seas 7 to 8 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 7 to 8 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE WED THROUGH THU... .TODAY...W winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...NE winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...NE winds 15 to 25 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .WED...NE winds 25 to 35 kt. Seas 8 to 11 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 10 to 15 ft. .THU...N winds 15 to 25 kt. Seas 12 to 17 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 11 to 16 ft. .FRI...NE winds 10 to 15 kt. Seas 10 to 15 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 9 to 12 ft. Bahamas N of 22N .TODAY...SE winds less than 10 kt, shifting to NE in the afternoon. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NW winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SW winds less than 10 kt. Seas 7 to 10 ft. .TONIGHT...SW winds less than 10 kt. Seas 6 to 8 ft. .TUE...SW winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .WED...W winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 8 to 11 ft. .THU...N winds 10 to 20 kt. Seas 9 to 14 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 10 to 14 ft. .FRI...NE winds 10 kt. Seas 9 to 12 ft. .FRI NIGHT...NE winds 10 kt. Seas 9 to 11 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 7 to 10 ft. .TONIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 8 ft. .TUE...SE winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SW winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. .THU...N winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...N winds less than 10 kt. Seas 6 to 8 ft. .FRI...NE winds less than 10 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 10 to 13 ft. .TONIGHT...E winds 10 to 15 kt. Seas 8 to 11 ft. .TUE...SE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .WED...SE winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .THU...S winds 10 to 15 kt. Seas 5 to 6 ft. .THU NIGHT...SW winds less than 10 kt. Seas 5 to 7 ft. .FRI...W winds less than 10 kt. Seas 6 to 9 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming N less than 10 kt after midnight. Seas 6 to 9 ft.