000 FZNT31 KNHC 210845 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 345 AM EST Fri Dec 21 2018 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 ATLC from 07N to 19N between 55W and 64W .SYNOPSIS...Fresh to locally strong winds will continue across the south-central Caribbean through Tue, increasing to minimal gale force along the NW coast of Colombia during the overnight hours Sat night, Sun night and again on Tue night. A developing cold front from central Cuba to central Honduras will merge with a reinforcing front currently to the W. The merged boundary will reach from the Windward Passage to Costa Rica on Sat morning, then drift S and gradually dissipate through Sun. Strong northerly winds are expected W of the boundaries as well, increasing to near gale force along the coast of Nicaragua. NW Caribbean W of 85W .TODAY...S of 17N W of 87W, NW winds 20 to 25 kt, diminishing to 10 to 15 kt in the afternoon. Elsewhere, NW winds 20 to 25 kt. Seas 6 to 8 ft. .TONIGHT...NW to N winds 10 to 15 kt S of 17N W of 87W, and NW to N 15 to 20 kt elsewhere. Seas 6 to 8 ft. .SAT...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...NE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .MON...E winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Caribbean N of 15N between 72W and 85W .TODAY...NW winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and 5 to 7 ft elsewhere. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and 4 to 6 ft elsewhere. .SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NE 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 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W ...GALE WARNING... ...GALE CONDITIONS POSSIBLE SUN NIGHT... ...GALE CONDITIONS POSSIBLE TUE NIGHT... .TODAY...NE to E winds 20 to 25 kt within 90 nm of coast of Colombia, and NE to E 15 to 20 kt elsewhere. Seas 6 to 8 ft. .TONIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and NE to E 20 to 25 kt elsewhere. Seas 6 to 8 ft. .SAT...NE to E winds 20 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...NE to E winds 20 to 25 kt, except NE 25 to 35 kt within 90 nm of coast of Colombia. Seas 7 to 11 ft. .SUN...NE to E winds 20 to 25 kt. Seas 7 to 11 ft. .SUN NIGHT...NE to E winds 20 to 25 kt, except NE 25 to 35 kt within 90 nm of coast of Colombia. Seas 7 to 10 ft. .MON...NE to E winds 20 to 25 kt. Seas 7 to 11 ft. .MON NIGHT...NE to E winds 20 to 25 kt. Seas 7 to 10 ft. .TUE...NE to E winds 20 to 25 kt. Seas 7 to 10 ft. .TUE NIGHT...NE to E winds 20 to 25 kt, except NE 25 to 35 kt within 90 nm of coast of Colombia. Seas 7 to 10 ft. SW Caribbean S of 11N .TODAY...N winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...N to NE winds 20 to 25 kt. Seas 4 to 6 ft, building to 7 to 10 ft late. .SAT...N to NE winds 20 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...N to NE winds 20 to 25 kt. Seas 7 to 11 ft. .SUN...NE winds 20 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...NE winds 20 to 25 kt. Seas 6 to 9 ft. .MON...NE winds 20 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...NE winds 20 to 25 kt. Seas 6 to 9 ft. .TUE...NE winds 15 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds 20 to 25 kt. Seas 6 to 8 ft. Caribbean between 64W and 72W .TODAY...NE to E winds 20 to 25 kt Gulf of Venezuela, and E 15 to 20 kt elsewhere. Seas 6 to 8 ft. .TONIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 15 to 20 kt elsewhere. Seas 5 to 7 ft. .SAT...E winds 15 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE to E winds 20 to 25 kt Gulf of Venezuela, and E 15 to 20 kt elsewhere. Seas 4 to 6 ft. .SUN...E winds 15 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .MON...E winds 15 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 20 kt. Seas 4 to 6 ft. .TUE...E winds 15 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 20 to 25 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 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 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 20 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 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 15 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 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Synopsis for the the SW N ATLC including the Bahamas .SYNOPSIS...A developing cold front from 31N77W to central Cuba will be reinforced by another cold front over the eastern Gulf of Mexico. Near gale to gale force southerly flow from the Straits of Florida to the NW Bahamas and N of there will persist, shifting NE and diminishing by early Sat. The developing cold front will reach from near 31N74W to eastern Cuba this afternoon, from 31N70W to the eastern tip of Cuba late tonight, weaken from Bermuda to the Windward Passage on Sat, then stall from 27N65W to eastern Cuba on Sun. Remnants of the front will drift NW on Mon and Tue, with winds and seas diminishing across the region this weekend. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...SW winds 30 to 40 kt. Seas 13 to 20 ft. .TONIGHT...SW to W winds 30 to 40 kt, becoming W 25 to 30 kt early in the morning. Seas 14 to 21 ft. .SAT...W to NW winds 20 to 25 kt. Seas 9 to 14 ft, subsiding to 7 to 10 ft late in the afternoon. .SAT NIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft, subsiding to 3 to 5 ft early in the morning. .SUN...NW to N winds 5 to 10 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 3 ft or less. .MON...N winds 5 to 10 kt. Seas 3 ft or less. .MON NIGHT...N to NE winds 5 to 10 kt. Seas 3 ft or less. .TUE...NE winds 10 kt. Seas 3 ft or less. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...S winds 25 to 35 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 13 to 18 ft W of 70W, and 7 to 10 ft elsewhere. .TONIGHT...SW winds 25 to 35 kt W of 70W, and S 15 to 25 kt elsewhere. W of 70W, seas 15 to 20 ft. Elsewhere, seas 8 to 11 ft, building to 9 to 14 ft after midnight. .SAT...W winds 15 to 25 kt. W of 70W, seas 13 to 18 ft, subsiding to 10 to 15 ft in the afternoon. Elsewhere, seas 9 to 14 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 7 to 10 ft W of 70W, and 9 to 14 ft elsewhere. .SUN...N winds less than 10 kt. Seas 6 to 9 ft. .SUN NIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .MON...N winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .TUE...NE winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Bahamas N of 22N ...GALE WARNING... .TODAY...SW winds 25 to 35 kt, shifting to W late. Seas 7 to 10 ft ATLC Exposures, and 7 to 11 ft elsewhere. .TONIGHT...W to NW winds 20 to 30 kt. Seas 7 to 10 ft ATLC Exposures, and 7 to 11 ft elsewhere. .SAT...NW to N winds 15 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...NE winds 10 to 15 kt. Seas 3 ft or less. .SUN NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft. .MON...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .MON NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .TUE...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...S winds 15 to 25 kt W of 70W, and SE 10 to 20 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 7 ft elsewhere. .TONIGHT...SW winds 15 to 25 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 8 to 11 ft W of 70W, and 5 to 7 ft elsewhere. .SAT...SW winds 10 to 15 kt. Seas 7 to 10 ft W of 70W, and 6 to 9 ft elsewhere. .SAT NIGHT...N winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 6 to 9 ft. .SUN...NE winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...NE 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 5 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .TODAY...SE to S winds 15 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .SAT...NE winds 15 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .MON...E winds 15 to 20 kt. Seas 2 to 4 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 15 to 20 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 7 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .MON...E winds 10 to 15 kt. Seas 6 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.