000 FZNT31 KNHC 151935 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 335 PM EDT Thu Apr 15 2021 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...An Ashfall Advisory is in effect for La Soufriere Volcano on the island of St. Vincent near 13.3N 61.2W. Mariners transiting the nearby waters should exercise caution, and are encouraged to report volcanic ash to the National Hurricane Center by calling 305-229-4424. A stationary front northeast of the Windward Islands will continue to weaken tonight. Moderate to fresh trade winds, locally strong, will prevail across the Caribbean through Sun. Fresh to strong SE winds are expected in the NW Caribbean this weekend, and then again Tue night. Fresh to strong trade winds will prevail across the central Caribbean Sun night through early next week. NW Caribbean W of 85W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds 10 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft. .SUN...SE winds 15 to 25 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds 10 to 20 kt. 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. S of 18N, seas 4 to 6 ft. Elsewhere, seas 3 to 4 ft in the evening, subsiding to 2 ft or less. .FRI...S of 18N, E winds 10 to 15 kt. Elsewhere, SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .FRI NIGHT...SE winds 10 to 15 kt. S of 18N, seas 3 to 5 ft. Elsewhere, seas 2 ft or less, building to 3 ft after midnight. .SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...SE 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 .TONIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 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 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .TUE...E winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. SW Caribbean S of 11N .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt, shifting to S after midnight. Seas 3 to 5 ft. .SAT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SUN...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or less. .SUN NIGHT...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON...NE winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .TUE...N winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 5 to 7 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 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .FRI...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .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 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...ASHFALL ADVISORY... .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Volcanic ash possible with reduced visibilities. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 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 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 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...ASHFALL ADVISORY... .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Volcanic ash possible with reduced visibilities. .FRI...E winds 10 to 20 kt. Seas 4 to 6 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 6 to 9 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 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 Atlantic including the Bahamas .SYNOPSIS...A dissipating cold front north of Puerto Rico will stall and weaken through tonight. A cold front will move east of northern Florida into the northern waters by early Fri, then stall north of the Bahamas this weekend into early next week. ATLC waters from 27N to 31N W of 77W .TONIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...W winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NW winds 10 to 15 kt, shifting to W after midnight. Seas 3 to 5 ft. .SAT...SW winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...W winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...W winds less than 10 kt. Seas 3 to 4 ft. .MON...W winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .TUE...S winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...W of 70W, SW winds 10 to 20 kt. Elsewhere, SW winds less than 10 kt, increasing to 10 to 20 kt after midnight. Seas 6 to 8 ft. .FRI...SW winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...W winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...SW winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .MON NIGHT...SW winds less than 10 kt. Seas 4 to 5 ft. .TUE...SW winds less than 10 kt. Seas 4 to 5 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. Bahamas N of 22N .TONIGHT...Atlc Exposures, variable winds less than 5 kt, becoming SE to S 10 kt late. Elsewhere, SE winds 10 kt. Seas 2 to 4 ft Atlc Exposures, and 3 ft or less elsewhere. .FRI...S winds 10 kt. Seas 2 to 4 ft Atlc Exposures, and 3 ft or less elsewhere. .FRI NIGHT...SE to S winds 10 kt. Seas 2 to 4 ft Atlc Exposures, and 3 ft or less elsewhere. .SAT...S winds 10 kt. Seas 2 to 4 ft Atlc Exposures, and 3 ft or less elsewhere. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .SUN...S winds 10 kt. Seas 3 ft or less. .SUN NIGHT...SE winds 10 kt. Seas 3 ft or less. .MON...SE to S winds 10 kt. Seas 3 ft or less. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .TUE...SE to S winds 10 to 15 kt. Seas 3 ft or less. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...S winds 10 to 15 kt W of 70W, and S less than 10 kt elsewhere. Seas 4 to 6 ft. .FRI NIGHT...S winds less than 10 kt. Seas 4 to 6 ft. .SAT...SW winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...S winds less than 10 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...S winds 10 kt. Seas 3 to 4 ft. .MON...S winds 10 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .SUN...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...E winds 10 kt. Seas 5 to 6 ft. .FRI NIGHT...SE winds 10 kt. Seas 5 to 6 ft. .SAT...SE winds 10 kt. Seas 5 to 6 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .SUN...SE winds 10 kt. Seas 4 to 5 ft. .SUN NIGHT...E winds 10 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 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.