000 FZNT31 KNHC 211435 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1035 AM EDT Fri Mar 21 2025 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 19N W of 55W, the N Atlantic from 19N to 31N W of 55W including the 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 W of 55W .SYNOPSIS...Fresh to strong E to NE winds offshore of Colombia and Venezuela will pulse to gale force offshore of Colombia each night and early morning into early next week. A cold front entering the northwestern Caribbean will support moderate to fresh NE winds and moderate seas in the wake of the front through this morning. The front will dissipate this afternoon. Fresh to occasionally strong NE winds will pulse in the Windward Passage and in the lee of Cuba into early next week. Fresh to strong SE winds will develop across the Gulf of Honduras late this weekend into early next week. NW Caribbean W of 85W .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TONIGHT...NE winds 10 to 15 kt. S of 18N, seas 4 to 6 ft. Elsewhere, seas 2 ft or less, building to 3 ft after midnight. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to 5 ft elsewhere. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Caribbean from 11N to 15N W of 72W ...GALE WARNING TONIGHT AND SAT NIGHT... ...GALE CONDITIONS POSSIBLE SUN NIGHT... .TODAY...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE to E winds 25 to 35 kt S of 13N, and E 20 to 25 kt N of 13N. Seas 6 to 9 ft. .SAT...NE to E winds 20 to 30 kt. Seas 7 to 10 ft. .SAT NIGHT...NE to E winds 25 to 35 kt S of 13N, and E 20 to 25 kt N of 13N. Seas 8 to 12 ft. .SUN...NE to E winds 25 to 30 kt. Seas 9 to 14 ft. .SUN NIGHT...NE to E winds 25 to 35 kt S of 13N, and E 20 to 25 kt N of 13N. Seas 9 to 13 ft. .MON...E winds 25 to 30 kt. Seas 9 to 13 ft. .MON NIGHT...NE to E winds 25 to 30 kt. Seas 8 to 12 ft. .TUE...E winds 20 to 25 kt. Seas 8 to 12 ft. .TUE NIGHT...E winds 20 to 30 kt. Seas 7 to 11 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...NE winds 10 to 20 kt. Seas 8 to 11 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 8 to 13 ft. .MON...NE winds 10 to 20 kt. Seas 8 to 11 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 8 to 11 ft. .TUE...NE winds 10 to 15 kt. Seas 7 to 10 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 7 to 10 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .SAT...E winds 15 to 25 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 25 to 30 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...SE winds less than 10 kt. Seas 5 to 7 ft. .TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 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 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 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 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE 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 extending from 31N72W to northeast Cuba will reach from Bermuda to central Cuba this evening. The northern portion of the front will reach from 31N55W to 26N65W early Sat, with the southern portion stalling and starting to dissipate through central Cuba. Fresh to strong NW winds will follow the front north of 25N through tonight, then diminish. Rough to very rough seas will also follow the front and subside to moderate seas by late Sat. The northern portion of the front will shift east of 55W by late Sat, followed by high pressure building over the western Atlantic along 30N. This pattern will support gentle breezes and slight to moderate seas north of 22N into early next week. Looking ahead, the high pressure will shift eastward Mon ahead of a weak cold front moving off the northeast Florida coast. Fresh to strong winds may pulse off the northern coast of Hispaniola late Sun through Tue. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...NW winds 15 to 25 kt. Seas 8 to 11 ft. .TONIGHT...N winds 10 to 15 kt in the evening, becoming variable winds less than 10 kt. Seas 6 to 9 ft. .SAT...Variable winds less than 10 kt, becoming SW less than 10 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...W winds less than 10 kt. Seas 3 to 4 ft. .SUN...NE winds less than 10 kt, shifting to SE in the afternoon. Seas 3 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...S winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SW winds 10 to 15 kt, shifting to NW in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...W winds 15 to 25 kt. Seas 8 to 11 ft W of 70W, and 6 to 8 ft elsewhere. .TONIGHT...NW winds 15 to 25 kt. Seas 8 to 11 ft. .SAT...W of 70W, NE winds less than 10 kt, shifting to S in the afternoon. Elsewhere, N winds 10 to 15 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 9 ft W of 70W, and 7 to 10 ft elsewhere. .SAT NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft. .SUN...NW winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .MON...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...S winds less than 10 kt. Seas 3 to 5 ft. Bahamas N of 22N .THIS AFTERNOON...NW winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...N winds 10 to 15 kt, shifting to NE after midnight. Seas 3 to 5 ft. .SAT...E winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SUN...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft. .MON...SE winds 10 to 15 kt. Seas 3 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...W winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...E winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 5 to 7 ft. .SUN...E winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...Variable winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SAT...E winds less than 10 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 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...SW winds less than 10 kt. Seas 7 to 9 ft. .TONIGHT...Variable winds less than 10 kt. Seas 6 to 8 ft. .SAT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .TUE...E winds 15 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 7 to 8 ft.