000 FZNT31 KNHC 091434 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1034 AM EDT Sun Mar 9 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...Weak high pressure prevails across the western Atlantic north of the area. This pattern supports moderate to fresh NE to E trade winds offshore of northwestern Colombia and in the Gulf of Venezuela pulsing to fresh to strong during the evening and early morning hours through Tue morning. A similar scenario is also expected across the Gulf of Honduras through Sun morning. Looking ahead, a cold front will move across the Gulf of America and enter the northwestern Caribbean on Mon evening, reach from central Cuba to the Gulf of Honduras Tue morning, then dissipate from the N coast of Haiti to the Gulf of Honduras early Wed. Expect fresh to locally strong N winds and locally rough seas behind the front through Tue morning. NW Caribbean W of 85W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 5 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt S of 18N, and SE less than 10 kt elsewhere. Seas 3 to 5 ft. .MON NIGHT...S of 18N, SE winds 10 to 15 kt, shifting to E after midnight. Elsewhere, SW winds less than 10 kt, shifting to W after midnight. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...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. .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. .MON...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. .MON NIGHT...NE winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...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...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 5 ft. .MON NIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU 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 .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .WED NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .THU...E winds less than 10 kt. Seas 4 to 6 ft. .THU 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 .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E 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 less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Fresh to strong W to SW winds and rough seas will prevail over the waters north of 29N and east of 70W through this afternoon as a cold front moves N of the area. Rough to very rough seas in large W to NW swell dominates the waters E of 63W this morning, and will shift eastward and gradually subside through tonight. On Mon, a complex low and frontal system will move off the Carolina coasts and induce fresh to strong S to SW winds ahead of the front and strong W to NW winds and very rough seas behind the front. The front will reach from 31N70W to the central Bahamas Tue morning, and from 31N62W to the N coast of Hispaniola by Wed morning, then drift SE and weaken quickly through Thu morning. NW gales are possible behind the front and N of 28N early Tue. High pressure will dominate the area waters late Wed through Thu. ATLC waters from 27N to 31N W of 77W ...GALE CONDITIONS POSSIBLE TUE... .THIS AFTERNOON...SW winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .MON...SW winds 15 to 25 kt. Seas 5 to 7 ft. .MON NIGHT...W winds 20 to 30 kt. Seas 7 to 10 ft, building to 8 to 13 ft after midnight. .TUE...NW winds 25 to 35 kt. Seas 9 to 14 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft. .WED...NE winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .THU...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE TUE... .THIS AFTERNOON...W of 70W, SW winds less than 10 kt. Elsewhere, W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .TONIGHT...SW winds less than 10 kt. Seas 5 to 7 ft. .MON...W of 70W, S winds 10 to 20 kt. Elsewhere, SE winds less than 10 kt, shifting to S in the afternoon. Seas 5 to 7 ft. .MON NIGHT...SW winds 20 to 30 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 7 ft elsewhere. .TUE...SW winds 25 to 35 kt. Seas 9 to 14 ft. .TUE NIGHT...NW winds 20 to 30 kt. Seas 11 to 16 ft. .WED...N winds 20 to 30 kt. Seas 10 to 15 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 13 ft, subsiding to 7 to 10 ft after midnight. .THU...E winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...SE winds 10 kt. Seas 5 to 7 ft. Bahamas N of 22N .THIS AFTERNOON...S winds less than 10 kt. Seas 3 ft. .TONIGHT...SE winds less than 10 kt. Seas 2 ft or less. .MON...S winds 10 to 15 kt. Seas 2 ft or less, building to 3 to 4 ft in the afternoon. .MON NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...NW winds 15 to 25 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...S winds less than 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 5 to 7 ft. .TONIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 4 to 6 ft. .MON...SE winds less than 10 kt, shifting to S in the afternoon. Seas 3 to 5 ft. .MON NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SW winds 15 to 25 kt. Seas 7 to 10 ft. .TUE NIGHT...W winds 15 to 25 kt. Seas 8 to 11 ft. .WED...N winds 10 to 20 kt. Seas 8 to 13 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 8 to 11 ft. .THU...E winds 10 to 15 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .MON...SE winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NW winds 10 to 15 kt, shifting to N in the afternoon. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...SE winds less than 10 kt. Seas 7 to 8 ft. .TONIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. .MON...E winds less than 10 kt. Seas 5 to 7 ft. .MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 6 ft. .WED...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...SW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .THU...SW winds less than 10 kt, shifting to NW in the afternoon. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft.