000 FZNT31 KNHC 121402 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1002 AM EDT Sun Mar 12 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...A weak pressure pattern is yielding a below normal tradewinds across the basin. Tradewinds will increase again Mon night through Wed. Large northerly swell impacting the regional Atlantic waters, including passages of the NE Caribbean, will gradually subside through early Mon. New northerly swell will arrive Tue. Fresh to strong ESE winds are expected across the Gulf of Honduras tonight through Tue morning. A cold front is forecast to enter the northwestern basin early Wed, and reach from the Windward Passage to northern Gulf of Honduras Thu. NW Caribbean W of 85W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less. .TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt S of 18N, and SE less than 10 kt elsewhere. Seas 3 to 4 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SE winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt, shifting to NE after midnight. Seas 3 to 5 ft. .THU...NE winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .MON...E winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .TUE...NE winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .THU...N winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .MON...Gulf of Venezuela, E winds 15 to 20 kt, diminishing to 10 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...SE winds less than 10 kt. Seas 6 to 9 ft. .TONIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .MON...E winds less than 10 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 6 to 9 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...S winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .MON...E winds 10 to 15 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 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .THU...E winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front from near 31N56W to the northern Bahamas will move quickly ESE across the northern waters. The front will extend from near 28N55W to the southern Bahamas by this evening, then dissipate. During this time, gale-force SW to W winds are expected ahead of the front, N of 28.5N, and W gales behind the front N of 30N and E of 67W. Moderate to large N to NE swell currently dominating the regional waters will gradually subside through tonight S of 25N, while seas N of 25N will remain 10 ft and higher through early next week. Another cold front will enter the far NW waters Mon, then continue SE, reaching the NW Bahamas Tue morning, and from near 29N55W to the Windward Passage by Thu morning. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...S winds 10 to 20 kt. Seas 6 to 7 ft. .TONIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. .MON...W winds 15 to 25 kt. Seas 8 to 11 ft. .MON NIGHT...NW winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...NW winds 10 to 20 kt. Seas 7 to 9 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 7 to 9 ft. .WED...N winds 10 to 15 kt. Seas 7 to 9 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 8 to 11 ft W of 70W, and 10 to 15 ft elsewhere. .TONIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft W of 70W, and 12 to 17 ft elsewhere. .MON...SW winds 15 to 25 kt W of 70W, and SW 10 to 20 kt elsewhere. Seas 8 to 12 ft W of 70W, and 11 to 15 ft elsewhere. .MON NIGHT...SW winds 15 to 25 kt. Seas 9 to 13 ft. .TUE...W winds 15 to 25 kt. Seas 8 to 13 ft. .TUE NIGHT...NW winds 10 to 20 kt. Seas 8 to 11 ft. .WED...NW winds 10 to 20 kt. Seas 8 to 13 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 9 to 14 ft. .THU...NW winds 15 to 25 kt. Seas 9 to 14 ft. .THU NIGHT...N winds 15 to 25 kt. Seas 8 to 13 ft. Bahamas N of 22N .THIS AFTERNOON...SW winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...SE winds less than 10 kt, shifting to S after midnight. Seas 3 to 5 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...W winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...NW winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 7 to 10 ft. .MON...S winds 10 to 20 kt W of 70W, and S less than 10 kt elsewhere. Seas 8 to 11 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 8 to 11 ft. .TUE...SW winds 10 to 20 kt. Seas 7 to 9 ft. .TUE NIGHT...W winds 10 to 15 kt. Seas 7 to 10 ft. .WED...NW winds 10 to 15 kt. Seas 7 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .THU...N winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 8 to 12 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...W winds less than 10 kt. Seas 5 to 7 ft. .TONIGHT...N winds less than 10 kt, shifting to E after midnight. Seas 4 to 6 ft. .MON...S winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 5 to 7 ft. .TUE...S winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .WED...SE winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...S winds 10 to 15 kt, shifting to NW after midnight. Seas 4 to 6 ft. .THU...N winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...SW winds 10 to 15 kt. Seas 8 to 9 ft. .TONIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft. .MON...W winds less than 10 kt. Seas 6 to 8 ft. .MON NIGHT...NE winds less than 10 kt. Seas 8 to 11 ft. .TUE...E winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 8 to 11 ft. .TUE NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 8 to 10 ft. .WED...SE winds 10 kt. Seas 7 to 9 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 7 to 8 ft. .THU...S winds 10 to 20 kt. Seas 7 to 8 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 7 to 10 ft.