138 FZNT31 KNHC 072021 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 321 PM EST Tue Mar 7 2023 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...Fresh to locally strong trades will persist near the coast of Colombia through tonight. Gentle to moderate winds will prevail elsewhere tonight and Wed. The pressure gradient will weaken across the basin on Wed as an Atlantic cold front sinks southward toward the Caribbean islands. The cold front is forecast to reach the Greater Antilles on Thu. The front will bring large N swell through the NE Caribbean passages and Tropical N Atlantic waters beginning Thu and lasting into the weekend. NW Caribbean W of 85W .TONIGHT...E winds 10 to 15 kt. Seas 3 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 ft. .THU...E winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...S of 18N, NE winds less than 10 kt. Elsewhere, E winds less than 10 kt, shifting to NE after midnight. Seas 3 to 4 ft. .WED...S of 18N, E winds less than 10 kt. Elsewhere, NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt S of 18N, and NE 10 to 15 kt elsewhere. Seas 3 ft. .THU...S of 18N, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT...SE winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. .SUN...SE winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...Within 90 nm of coast of Colombia, NE winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt within 90 nm of coast of Colombia, and NE less than 10 kt elsewhere. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 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. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 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, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TONIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .WED...Gulf of Venezuela, NE winds 10 to 20 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and NE less than 10 kt elsewhere. Seas 3 ft. .THU...NE winds 10 to 20 kt Gulf of Venezuela, and NE less than 10 kt elsewhere. Seas 3 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 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. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .WED...SW winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .THU...W winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...NW winds less than 10 kt. Seas 6 to 9 ft. .FRI NIGHT...NE 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 6 to 9 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 6 to 8 ft. .SUN...SE winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .THU...E winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt. Seas 4 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 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 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Westerly winds will begin to increase across the waters N of 29N by early this evening ahead of another cold front forecast enter the forecast region at same time. The front will reach from 31N53W to the NW Bahamas and central Florida by Wed morning, extending across the Greater Antilles by Thu morning. Gale force winds are expected on either side of the front early this evening, mainly N of 29N between 55W and 65W. Wind are forecast to diminish below gale force over the NE waters by late Wed morning, but strong NW winds will persist. A significant NW to N swell event will follow the front, with seas of 12 to 20 ft covering most of the waters N of 25N and E of 74W by early Wed afternoon. Seas of 12 ft will reach as far south as 22N by early Thu morning. Looking ahead, the next cold front is forecast to move off the southeast U.S. coast by Fri night, brining strong winds to waters east of Florida. ATLC waters from 27N to 31N W of 77W .TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 15 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. .THU...NE winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 kt. Seas 5 to 7 ft. .FRI...S winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...NW winds 20 to 25 kt, diminishing to 10 to 20 kt in the afternoon. Seas 7 to 10 ft. .SAT NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. .SUN...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 5 to 7 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TONIGHT...NW winds 15 to 25 kt W of 70W, and W 25 to 35 kt elsewhere. W of 70W, seas 5 to 7 ft, building to 7 to 10 ft after midnight. Elsewhere, seas 8 to 11 ft, building to 9 to 14 ft after midnight. .WED...N winds 15 to 25 kt W of 70W, and NW 20 to 30 kt elsewhere. Seas 8 to 13 ft W of 70W, and 11 to 16 ft elsewhere. .WED NIGHT...N winds 15 to 25 kt W of 70W, and NW 20 to 30 kt elsewhere. Seas 9 to 14 ft W of 70W, and 13 to 16 ft elsewhere. .THU...N winds 10 to 20 kt. Seas 8 to 13 ft W of 70W, and 11 to 14 ft elsewhere. .THU NIGHT...N winds 10 to 20 kt. Seas 8 to 12 ft. .FRI...N winds 10 to 15 kt, shifting to NW in the afternoon. Seas 8 to 13 ft. .FRI NIGHT...SW winds 10 to 15 kt, increasing to 15 to 25 kt after midnight. Seas 8 to 11 ft. .SAT...W winds 15 to 25 kt. Seas 9 to 12 ft. .SAT NIGHT...NW winds 15 to 25 kt. Seas 9 to 13 ft. .SUN...NW winds 10 to 20 kt. Seas 9 to 14 ft. .SUN NIGHT...W winds 10 to 15 kt. Seas 8 to 13 ft. Bahamas N of 22N .TONIGHT...NW winds less than 10 kt. Seas 2 ft or less. .WED...N winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE 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...SE winds less than 10 kt, shifting to S after midnight. Seas 3 to 5 ft. .SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .SUN...Variable winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...NW winds 10 to 20 kt. Seas 4 to 5 ft W of 70W, and 6 to 8 ft elsewhere. .WED...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 7 to 10 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft W of 70W, and 9 to 14 ft elsewhere. .THU...N winds 10 to 20 kt. Seas 9 to 14 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 8 to 11 ft. .FRI...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 7 to 10 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 8 to 11 ft. .SAT...SW winds 10 to 20 kt. Seas 8 to 10 ft. .SAT NIGHT...W winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...NW winds 10 to 15 kt. Seas 7 to 10 ft. .SUN NIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 6 to 9 ft. ATLC waters S of 22N W of 65W .TONIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .WED...NW winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...N winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...NE winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .SAT...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 5 to 7 ft. .SAT NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 5 to 7 ft. .SUN...SW 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 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...W 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 6 to 9 ft. .WED NIGHT...W winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NW winds 10 to 20 kt. Seas 8 to 12 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 10 to 12 ft. .FRI...NW winds 10 to 15 kt. Seas 9 to 11 ft. .FRI NIGHT...N winds 10 kt in the evening, becoming variable winds less than 10 kt. Seas 8 to 11 ft. .SAT...Variable winds less than 10 kt. Seas 9 to 11 ft. .SAT NIGHT...Variable winds less than 10 kt, becoming S 10 kt after midnight. Seas 9 to 10 ft. .SUN...SW winds 10 kt. Seas 7 to 9 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft.