000 FZNT31 KNHC 142031 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 431 PM EDT Tue Mar 14 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 below normal tradewinds across most of the basin. However winds will increase slightly through Wed, with fresh winds pulsing to strong winds at night in the south-central and southeast portions. Moderate northerly swell will move through the Atlantic waters and NE Caribbean Passages tonight then gradually subside through Thu morning. A cold front is forecast to sink S-SE across the northwestern basin Wed and Wed night, reach from the Windward Passage to Belize on Thu, and then from the northern Leeward Islands to the central Caribbean along 16N Fri. Strong winds will follow the front, locally higher in Atlantic passages, with Large N swell spreading through Atlantic passages through early Fri through Sat. Another front may stall near or just N of the Yucatan Channel for the end of the upcoming weekend. NW Caribbean W of 85W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 20 kt. Seas 4 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 ft. .WED...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...S of 18N, E winds less than 10 kt. Elsewhere, N winds less than 10 kt, increasing to 10 to 20 kt after midnight. Seas 3 to 4 ft. .THU...E winds less than 10 kt S of 18N, and NE 10 to 20 kt elsewhere. Seas 3 ft S of 18N, and 4 to 6 ft elsewhere. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .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. .WED...E winds 10 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .WED NIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...Within 90 nm of coast of Colombia, E winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NE 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 10 to 20 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TONIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .WED...N winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .THU...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE 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 10 to 15 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .TONIGHT...Gulf of Venezuela, NE winds 10 to 20 kt, becoming E 20 to 25 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .THU...SE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds less than 10 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .THU...SE winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...S winds less than 10 kt, shifting to SW after midnight. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN 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 .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN 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 SE of Bermuda to across the Central Bahamas to the Straits of Florida will continue moving SE, reaching from 31N59W to central Cuba Wed morning, from near 29N55W to the Windward Passage Thu morning, and from 20N55W through the Leeward Islands by Fri morning. Strong to gale-force northerly winds immediately behind the front will move through the Central and SE Bahamas Wed night, and then shift across the SE waters and into the Caribbean Islands Thu and Thu night. Another set of large N swell will accompany this front, with seas of 12 ft or greater N of 23N and E of 73W. Yet another cold front is expected to move off Florida this weekend, with fresh to strong southerly winds ahead of it Fri night through Sat. That front may reach from 31N70W to S Florida while possibly stalling. ATLC waters from 27N to 31N W of 77W .TONIGHT...N winds 10 to 20 kt. Seas 7 to 8 ft. .WED...N winds 10 to 15 kt. Seas 7 to 9 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 5 to 7 ft. .THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .FRI...S winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...S winds 20 to 30 kt. Seas 6 to 9 ft. .SAT...SW winds 20 to 30 kt. Seas 6 to 9 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...N winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...NW winds 10 to 20 kt. Seas 8 to 10 ft. .WED...NW winds 15 to 25 kt. Seas 8 to 13 ft. .WED NIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 8 to 13 ft W of 70W, and 10 to 15 ft elsewhere. .THU...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. 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 13 ft. .FRI...N winds less than 10 kt, shifting to SW in the afternoon. Seas 7 to 10 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...S winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...S winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. Bahamas N of 22N ...GALE WARNING WED NIGHT AND THU... .TONIGHT...N 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 15 to 25 kt, increasing to 25 to 35 kt behind front. Seas 5 to 7 ft, building to 6 to 10 ft Atlantic Exposures behind front. .THU...NE winds 15 to 25 kt, except 25 to 35 kt far SE part early. Seas 5 to 7 ft, except 6 to 10 ft Atlantic Exposures. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas ...GALE WARNING WED NIGHT AND THU... .TONIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft. .WED...NW winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 15 to 20 kt, becoming 25 to 35 kt behind front. Seas 6 to 9 ft. .THU...N to NE winds 20 to 25 kt, except 25 to 35 kt SE part early. Seas 8 to 11 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 8 to 12 ft. .FRI...E winds 10 to 15 kt. Seas 8 to 11 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. .SAT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters S of 22N W of 65W ...GALE WARNING... .TONIGHT...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...SE winds less than 10 kt. Seas 4 to 6 ft. .THU...NW winds 10 to 15 kt, becoming N 20 to 30 kt in the afternoon. Seas 4 to 6 ft, building to 6 to 9 ft in the afternoon. .THU NIGHT...NE winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W ...GALE CONDITIONS POSSIBLE WED NIGHT AND THU... .TONIGHT...Variable winds less than 10 kt. Seas 7 to 9 ft. .WED...SE winds 10 kt. Seas 7 to 8 ft. .WED NIGHT...SE winds less than 10 kt, becoming N to NE 25 to 35 kt behind front. Seas 6 to 7 ft. .THU...S winds 10 to 15 kt, except NE 25 to 35 kt behind front. Seas 6 to 7 ft, except 7 to 10 ft Atlantic Exposures. .THU NIGHT...NW winds 20 to 30 kt. Seas 7 to 10 ft. .FRI...N winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 9 to 11 ft. .SAT...E winds 15 to 20 kt. Seas 9 to 11 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 8 to 10 ft. .SUN...E winds 15 to 20 kt. Seas 8 to 10 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 7 to 9 ft.