000 FZNT31 KNHC 120915 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 515 AM EDT Mon Apr 12 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 Thu. Elsewhere, generally moderate to fresh east winds will change little through Fri night. NW Caribbean W of 85W .TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...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 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 5 ft. .FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt S of 18N, and SE less than 10 kt elsewhere. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft. .TUE NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to 20 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 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...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. .TONIGHT...NE winds 15 to 20 kt within 90 NM of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 15 to 20 kt within 90 NM of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TUE NIGHT...NE winds 15 to 20 kt within 90 NM of coast of Colombia, and NE 10 to 20 kt elsewhere. 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 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. 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. SW Caribbean S of 11N .TODAY...NE winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt, shifting to NW in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TODAY...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. .TONIGHT...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...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. 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 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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...E winds less than 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 NM S of 16N. .TONIGHT...E winds less than 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 NM S of 16N. .TUE...SE winds less than 10 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 NM S of 16N. .TUE NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. Volcanic ash reducing visibility to 4 NM S of 16N. .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 4 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .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. 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...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 NM, except to less than 4 NM W of 58W. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 NM, except to less than 4 NM W of 58W. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash reducing visibility to 4 NM, except to less than 4 NM W of 58W. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Volcanic ash reducing visibility to 4 NM, except to less than 4 NM W of 57W. .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. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Fresh to strong southwest winds east of northern and central Florida will shift eastward today ahead of a cold front that will move off the southeastern U.S. coast. The front will reach from near 31N73W to the northern Bahamas and to South Florida early this afternoon, from near 31N67W to the southeastern Bahamas and to eastern Cuba by late tonight and the southeastern waters on Tue. The front will move east of the forecast waters on Wed as weak high pressure builds in behind it and as another cold front approaches the far northwest waters. This front will move across the water N and NE of the Bahamas from late Wed night through Fri night. Fresh to strong southwest winds are expected ahead of this front. Scattered showers and thunderstorms will continue to move offshore the South Florida coast this morning. ATLC waters from 27N to 31N W of 77W .TODAY...NW winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 kt. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .THU...W winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...N winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...W winds 10 to 20 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 6 to 8 ft. .TONIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 6 to 8 ft. .WED...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...W winds less than 10 kt. Seas 6 to 8 ft. .THU...SW winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...W winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft. Bahamas N of 22N .TODAY...SW winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...S winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .FRI...SW winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SW winds 10 to 20 kt. Seas 5 to 6 ft. .TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NW winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .WED...N winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .THU...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...S winds less than 10 kt. Seas 4 to 6 ft. .FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 5 to 6 ft. ATLC waters S of 22N W of 65W .TODAY...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...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...N winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE 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. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 8 ft. .TONIGHT...Variable winds less than 10 kt, becoming S 10 kt after midnight. Seas 5 to 7 ft. .TUE...S winds 10 kt. Seas 4 to 6 ft. .TUE NIGHT...S winds less than 10 kt. Seas 4 to 5 ft. .WED...W winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. .THU...Variable winds less than 10 kt. Seas 4 to 5 ft. .THU NIGHT...SE winds 10 kt. Seas 4 to 5 ft. .FRI...SE winds 10 kt. Seas 4 to 5 ft. .FRI NIGHT...SE winds 10 kt. Seas 5 ft.