526 FZNT31 KNHC 211156 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 656 AM EST Tue Jan 21 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...Long-period north swell will continue to result in large seas and hazardous marine conditions across the Tropical North Atlantic and along Atlantic facing parts of the Lesser Antilles and Puerto Rico into tonight, before gradually diminishing. A cold front that stretches from central Cuba to northern Belize early this morning will continue to move S and reach from eastern Cuba to Honduras by this evening, then from Hispaniola to Costa Rica by Wed night. Behind this front, strong north winds and higher seas are expected. NW Caribbean W of 85W .TODAY...N winds 15 to 25 kt. Seas 6 to 9 ft. .TONIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .WED...N winds 10 to 20 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 in the morning, subsiding to 2 ft or less. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .SAT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TODAY...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 20 kt S of 18N, and N 15 to 25 kt elsewhere. Seas 4 to 6 ft. .WED...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .SAT...NE winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less. Caribbean from 11N to 15N W of 72W .TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds less than 10 kt within 90 nm of coast of Colombia, and N 10 to 20 kt elsewhere. Seas 3 to 5 ft within 90 nm of coast of Colombia, and 5 to 7 ft elsewhere. .WED NIGHT...Within 90 nm of coast of Colombia, N winds 10 kt in the evening, becoming variable winds less than 10 kt. Elsewhere, N winds 10 to 20 kt. Seas 3 to 4 ft within 90 nm of coast of Colombia, and 5 to 7 ft elsewhere. .THU...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .FRI...N winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 ft. .SAT...NE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 ft. SW Caribbean S of 11N .TODAY...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. 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, diminishing to less than 10 kt after midnight. Seas 3 to 4 ft. .SAT...N winds less than 10 kt. Seas 3 ft. .SAT NIGHT...N winds 10 to 15 kt. Seas 3 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .TONIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...SE winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 4 to 6 ft. .WED NIGHT...SE winds less than 10 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .THU...SE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft. .FRI...E winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt. Seas 7 to 10 ft. .TONIGHT...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...SE winds 10 to 15 kt. Seas 4 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...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...E winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 7 to 10 ft. .TONIGHT...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 5 to 7 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. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front that extends early this morning from SE of Bermuda through the SE Bahamas and into central Cuba will slow down today as low pressure forms along it to the east of the Bahamas. As this low moves slowly NE toward Bermuda through Thu, a very tight pressure gradient will develop between it and strong high pressure over the SE U.S. This will result in gales developing by this evening off the N coast of Florida, then spreading across most areas N of 27N and W of 67W over the next several days. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...N winds 10 to 20 kt, increasing to 25 to 35 kt in the afternoon. Seas 7 to 10 ft. .TONIGHT...N winds 25 to 35 kt. Seas 9 to 14 ft, building to 12 to 17 ft after midnight. .WED...NE winds 25 to 35 kt. Seas 14 to 19 ft. .WED NIGHT...NE winds 20 to 25 kt. Seas 12 to 17 ft. .THU...NE winds 15 to 20 kt. Seas 10 to 14 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 9 to 11 ft. .FRI...SE winds 10 kt. Seas 8 to 9 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 8 to 9 ft. .SAT...W winds 10 to 15 kt. Seas 8 to 9 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 7 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...W of 70W, E winds 10 to 20 kt, becoming NE 25 to 35 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas 6 to 8 ft, building to 8 to 11 ft after midnight. .WED...NE winds 25 to 35 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 12 to 17 ft W of 70W, and 7 to 10 ft elsewhere. .WED NIGHT...NE winds 20 to 30 kt W of 70W, and NW 15 to 25 kt elsewhere. W of 70W, seas 14 to 19 ft. Elsewhere, seas 8 to 11 ft, building to 9 to 14 ft after midnight. .THU...N winds 20 to 30 kt. Seas 13 to 18 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 12 to 17 ft. .FRI...N winds 10 to 15 kt. Seas 9 to 14 ft. .FRI NIGHT...NE winds 10 to 15 kt, shifting to N after midnight. Seas 9 to 11 ft. .SAT...W winds less than 10 kt. Seas 8 to 10 ft. .SAT NIGHT...W winds 10 to 15 kt. Seas 7 to 9 ft. Bahamas N of 22N .TODAY...N winds less than 10 kt, shifting to NW in the afternoon. Seas 3 to 4 ft. .TONIGHT...NW winds 15 to 25 kt. Seas 4 to 6 ft. .WED...NW winds 15 to 25 kt. Seas 5 to 7 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 8 ft. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .SAT...Variable winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SW winds less than 10 kt. Seas 5 to 6 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. .WED...W winds 15 to 25 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 7 to 10 ft. .WED NIGHT...NW winds 15 to 25 kt W of 70W, and W 15 to 25 kt elsewhere. Seas 10 to 15 ft W of 70W, and 7 to 10 ft elsewhere. .THU...NW winds 10 to 20 kt. Seas 9 to 14 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 8 to 12 ft. .FRI...N winds 10 kt. Seas 9 to 11 ft. .FRI NIGHT...NE winds 10 kt. Seas 9 to 10 ft. .SAT...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 7 to 8 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 7 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SW winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NW winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...N winds less than 10 kt. Seas 5 to 7 ft. .FRI...Variable winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 5 to 7 ft. .SAT...Variable winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 7 to 10 ft. .TONIGHT...E 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 10 to 15 kt. Seas 5 to 6 ft. .FRI...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...SW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 6 to 8 ft. .SAT...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 5 to 6 ft.