000 FZNT31 KNHC 170337 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1137 PM EDT Thu Mar 16 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 surface ridge extending from the east-central Atlantic to the southeastern Caribbean will shift eastward through the weekend. A cold front has entered the north-central and northeastern basin from just south of Puerto Rico westward to near Jamaica. This front will sink farther southward Fri and Fri night to near 15N on Sat before gradually dissipating by Sun. Strong winds will follow the front, locally higher in Atlantic passages with large N swell spreading through Atlantic passages early Fri through Sat. Another front is expected to move slowly southeastward through the southeastern Gulf of Mexico Sun and stall across the Yucatan Channel Mon night. NW Caribbean W of 85W .OVERNIGHT...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 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 15 kt, shifting to SW in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .MON...E winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .TUE...E winds less than 10 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 .OVERNIGHT...E winds 10 to 15 kt S of 18N, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE 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. Caribbean from 11N to 15N W of 72W .OVERNIGHT...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. .FRI...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .FRI NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .SAT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. 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 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 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 6 to 8 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. SW Caribbean S of 11N .OVERNIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt. 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 4 to 6 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 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 6 to 8 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. Caribbean between 64W and 72W .OVERNIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and NE 10 to 15 kt elsewhere. Seas 4 to 5 ft. .FRI...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .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. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .OVERNIGHT...Variable winds less than 10 kt, becoming N less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SUN...E winds 10 to 20 kt. Seas 8 to 11 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 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 Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .OVERNIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .MON...E winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from the north-central Atlantic across 31N50W to the Virgin Islands. The front will continue moving southeastward and reach from 31N45W to 20N55W through the northern Leeward Islands by Fri morning. Strong to gale-force NW winds immediately behind the front will continue across the waters east of 60W through tonight. Large N swell behind this front will spread southward to 20N and east of 75W. The next cold front is expected to move off northeastern Florida on Sat, with fresh to strong southerly winds ahead of it Fri evening through Sat. This front is expected to reach from 31N72W to S Florida late Sun before stalling. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...S winds 10 to 20 kt. Seas 4 to 5 ft. .FRI NIGHT...S winds 15 to 25 kt. Seas 6 to 8 ft. .SAT...SW winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...N winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NE winds 15 to 25 kt. Seas 6 to 8 ft. .MON NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...NE winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 10 to 20 kt, shifting to NW 10 to 15 kt after midnight. Seas 7 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W .OVERNIGHT...NE winds less than 10 kt W of 70W, and N 10 to 20 kt elsewhere. Seas 7 to 10 ft W of 70W, and 11 to 15 ft elsewhere. .FRI...W of 70W, SE winds less than 10 kt, shifting to S in the afternoon. Elsewhere, N winds 10 to 15 kt, shifting to NW in the afternoon. Seas 6 to 9 ft W of 70W, and 8 to 13 ft elsewhere. .FRI NIGHT...W of 70W, S winds 10 to 20 kt. Elsewhere, NW winds less than 10 kt, shifting to S after midnight. Seas 6 to 9 ft. .SAT...W of 70W, S winds 10 to 20 kt. Elsewhere, S winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. 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...S winds 10 to 15 kt. Seas 5 to 7 ft. .MON...S winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...SE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. Bahamas N of 22N .OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 15 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. Seas 3 ft. .MON...S winds less than 10 kt. Seas 3 ft. .MON NIGHT...SE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft. .TUE...Variable winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .OVERNIGHT...NE winds 10 to 15 kt W of 70W, and N 10 to 20 kt elsewhere. Seas 8 to 11 ft W of 70W, and 11 to 14 ft elsewhere. .FRI...W of 70W, E winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 7 to 10 ft W of 70W, and 9 to 12 ft elsewhere. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. .SAT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 6 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...NE winds 10 to 20 kt. 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...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE 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. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...N winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 10 to 11 ft. .SAT...NE winds 15 to 20 kt. Seas 9 to 11 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 8 to 11 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. .MON...E winds 15 to 20 kt. Seas 7 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.