946 FZNT31 KNHC 152143 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 543 PM EDT Sat Mar 15 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...High pressure over the northwest Atlantic will build while it shifts to the southeast to the central Atlantic waters. Fresh to locally strong winds will pulse at night offshore Colombia through early next week. Moderate to fresh NE to E winds are expected in the Windward Passage and south of the Dominican Republic through the weekend. Fresh to strong SE winds in the Gulf of Honduras will expand to the remaining northwest Caribbean ahead of a cold front forecast to move across the Yucatan Channel into the northwest basin Mon morning. Rough seas are expected with the strong winds preceding the front. Fresh to locally strong N to NE winds and moderate seas will be associated with the passage of the front, which is forecast to reach from eastern Cuba to NE Honduras by Tue morning, from the Windward Passage to NE Nicaragua Tue evening before dissipating late Wed. By Thu winds will pulse to fresh to strong speeds of the coast off Colombia. NW Caribbean W of 85W .TONIGHT...SE winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...SE winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...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 4 to 6 ft. .MON...NE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 20 kt. Seas 4 to 6 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...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .SUN...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .SUN NIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .MON...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...N 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 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .SUN...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .SUN NIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .MON...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .WED...E winds less than 10 kt. Seas 3 to 4 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 .TONIGHT...SE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .SUN...Variable winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .MON...Variable winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .TUE...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .WED...S winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...S winds less than 10 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt. Seas 6 to 8 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. .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 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. 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 4 to 6 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 10 to 15 kt. Seas 5 to 7 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...A developing low pressure east of the area will support strong to near-gale force winds east of 60W by Sun night. This pattern will also support rough to very seas east of 70W through mid week. Farther west, a strong cold front will push off the SE United States coast Sun late night preceded and followed by fresh to near-gale force winds and rough seas. The front will reach from 31N68W to the Turks and Caicos and eastern Cuba Tue morning, and from Bermuda to Puerto Rico Wed morning. ATLC waters from 27N to 31N W of 77W .TONIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft. .SUN...S winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...S winds 15 to 25 kt. Seas 6 to 9 ft. .MON...W winds 15 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...NW winds 20 to 25 kt. Seas 6 to 9 ft. .TUE...N winds 15 to 25 kt. Seas 7 to 9 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...NW winds 10 to 15 kt, shifting to W after midnight. Seas 6 to 9 ft. .THU...W winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft, building to 8 to 11 ft after midnight. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .SUN...SE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .MON...SE winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...NW winds 15 to 25 kt. Seas 8 to 11 ft. .TUE NIGHT...NW winds 20 to 30 kt. Seas 9 to 14 ft. .WED...NW winds 20 to 30 kt. Seas 13 to 18 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 11 to 16 ft. .THU...NW winds 10 to 15 kt. Seas 8 to 13 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. Bahamas N of 22N .TONIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...S winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...N winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED...N winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. .THU...N winds 10 to 15 kt, shifting to NW in the afternoon. Seas 5 to 7 ft. .THU NIGHT...NW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft W of 70W, and 6 to 9 ft elsewhere. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...SE winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...W winds 15 to 25 kt. Seas 7 to 10 ft. .TUE NIGHT...NW winds 15 to 25 kt. Seas 8 to 11 ft. .WED...NW winds 15 to 25 kt. Seas 11 to 16 ft. .WED NIGHT...NW winds 15 to 25 kt. Seas 13 to 18 ft. .THU...NW winds 10 to 20 kt. Seas 10 to 15 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 8 to 11 ft. ATLC waters S of 22N W of 65W .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 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...SW winds less than 10 kt, shifting to W in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. .WED...NW winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 8 to 11 ft. .THU...NW winds 10 to 15 kt. Seas 8 to 11 ft. .THU NIGHT...NW winds less than 10 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds less than 10 kt. Seas 6 to 8 ft. .SUN...N winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .MON...NE winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...NE winds less than 10 kt. Seas 7 to 10 ft. .TUE...S winds less than 10 kt. Seas 7 to 10 ft. .TUE NIGHT...SW winds 10 to 15 kt. Seas 7 to 10 ft. .WED...SW winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 7 to 10 ft. .THU...SW winds 10 to 15 kt. Seas 8 to 11 ft. .THU NIGHT...W winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 8 to 11 ft.