000 FZNT31 KNHC 201512 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1112 AM EDT Tue Apr 20 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...Fresh to strong trade winds over the central Caribbean will diminish by late in the week as high pressure over the central Atlantic shifts eastward, except near the coast of Colombia where these winds will persist through the week. NW Caribbean W of 85W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 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. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .TONIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt S of 18N, and NE less than 10 kt elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 5 ft elsewhere. .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. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 15 to 25 kt. Seas 6 to 9 ft. .TONIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 11 ft within 90 nm of coast of Colombia, and 6 to 8 ft elsewhere. .WED...E winds 20 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .WED NIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 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. SW Caribbean S of 11N .THIS AFTERNOON...NE winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .WED...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .WED NIGHT...NE winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 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 5 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 5 ft. .SAT 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 .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 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 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A weak cold front extending from 31N70W to West Palm Beach, Florida will stall E of 75W near 30N tonight, while W of 75W it will slowly continue southward. By early Wed, the stationary front will have lifted back to the N as a warm front, while the cold front will extend from NE of the Bahamas to the Florida Keys, and from near 31N69W to the central Bahamas and to west-central Cuba by late Wed night as another cold front moves over the NW waters. By late Thu, both fronts will be weakening NE of the Bahamas as high pressure builds in over the area. The high pressure will shift eastward through Sat night as a stronger cold front approaches the southeastern U.S. coast preceded by fresh to strong southerly winds over the far NW waters along with possible scattered showers and thunderstorms. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds less than 10 kt, shifting to SW late. Seas 3 to 5 ft. .WED...W winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 3 to 5 ft. .THU...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SE winds 15 to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 15 to 25 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...E winds less than 10 kt W of 70W, and W 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...W of 70W, SE to S winds less than 10 kt. Elsewhere, S winds less than 10 kt. Seas 4 to 6 ft. .WED...SW winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NW winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. Bahamas N of 22N .THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...S winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .THU...E winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...S winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 3 to 4 ft. .WED...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...S winds 10 kt. Seas 4 to 5 ft. .THU...S winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt. Seas 4 to 5 ft. .FRI NIGHT...NE 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 5 to 6 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...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 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. .SAT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds 10 kt. Seas 4 to 6 ft. .SAT...E winds 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.