000 FZNT31 KNHC 110844 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 444 AM EDT Sun Apr 11 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 waters under the emitted ash should exercise caution. Fresh southeast winds will continue over the northwestern Caribbean through the period, while fresh to strong east to southeast winds continue in the Gulf of Honduras. Winds will pulse to strong speeds over a small area near the coast of Colombia during the afternoons and at night through Wed. Elsewhere, generally moderate to fresh east winds will change little through Thu night. NW Caribbean W of 85W .TODAY...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...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...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU...SE winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E to SE winds 10 to 15 kt. 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 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .MON NIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 5 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .TODAY...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .MON...NE winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. 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 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...ASHFALL ADVISORY... LA SOUFRIERE ST VINCENT VOLCANO AT POSITION 13.3N 61.2W IS CURRENTLY UNDERGOING FREQUENT ERUPTIONS. ASH MAY BE REACHING THE SURFACE OF THE OCEAN AND LOW LEVEL VISIBILITY MAY BE REDUCED. MARINERS TRAVELING IN THE VICINITY OF THE VOLCANO ARE URGED TO EXERCISE CAUTION. IF MARINERS ENCOUNTER VOLCANIC ASH OR FLOATING VOLCANIC DEBRIS...YOU ARE ENCOURAGED TO REPORT THE OBSERVATION TO THE NATIONAL HURRICANE CENTER BY CALLING 305-229-4424. .TODAY...NE winds 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 6 nm or less S of 16N. .TONIGHT...NE winds 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 6 nm or less S of 16N. .MON...E winds less than 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 6 nm or less S of 16N. .MON NIGHT...E winds 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 6 nm or less S of 16N. .TUE...SE 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 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...SE winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...ASHFALL ADVISORY... LA SOUFRIERE ST VINCENT VOLCANO AT POSITION 13.3N 61.2W IS CURRENTLY UNDERGOING FREQUENT ERUPTIONS. ASH MAY BE REACHING THE SURFACE OF THE OCEAN AND LOW LEVEL VISIBILITY MAY BE REDUCED. MARINERS TRAVELING IN THE VICINITY OF THE VOLCANO ARE URGED TO EXERCISE CAUTION. IF MARINERS ENCOUNTER VOLCANIC ASH OR FLOATING VOLCANIC DEBRIS...YOU ARE ENCOURAGED TO REPORT THE OBSERVATION TO THE NATIONAL HURRICANE CENTER BY CALLING 305-229-4424. .TODAY...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Volcanic ash reducing visibility to 4 nm or less. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 nm or less. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 nm or less. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 nm or less. .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. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Fresh to strong southerly winds east of Florida will shift eastward through Mon ahead of a cold front that will move off the southeastern U.S. coast tonight. The front will reach from near 31N75W to east-central Florida early Mon, from near 31N70W to the central Bahamas and to east-central Cuba Mon evening and the southeast waters by late Tue. The front will move east of the forecast waters on Wed as weak high pressure builds in behind it. The high pressure will be displaced southeastward through Thu night as yet another cold front moves across the northwest and north-central waters. Fresh to strong southwest winds are expected to precede this front. Scattered to numerous showers and thunderstorms, some strong to severe, are expected to push off the Florida coast today. ATLC waters from 27N to 31N W of 77W .TODAY...SW winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NW winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NW winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 ft. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .THU...W winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...W of 70W, SW winds 10 to 20 kt. Elsewhere, Variable winds less than 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 6 to 8 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. .MON...SW winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NW winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...SW to W winds less than 10 kt. Seas 5 to 7 ft. .THU...SW winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. Bahamas N of 22N .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 10 to 15 kt. Seas 3 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .WED...E winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less. .THU...S winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...SW winds less than 10 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SE winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 6 to 8 ft. .TONIGHT...S winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 5 to 7 ft. .MON...S winds 10 to 20 kt. Seas 5 to 6 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED...N winds 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE...W winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 8 ft. .TONIGHT...NE winds less than 10 kt. Seas 7 to 8 ft. .MON...Variable winds less than 10 kt. Seas 6 to 8 ft. .MON NIGHT...Variable winds less than 10 kt, becoming SE 10 kt after midnight. Seas 5 to 7 ft. .TUE...S winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...S winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .WED...W winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .THU...Variable winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 kt. Seas 4 to 5 ft.