000 FZNT31 KNHC 211520 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1020 AM EST Mon Jan 21 2019 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 strong trade winds will continue over the south-central Caribbean through Wed night, and increase to at or near gale force along the coast of Colombia each night through Thu night. Moderate to locally fresh trade winds will prevail elsewhere. A strong cold front extends across the NW Caribbean from SE Cuba to NE Honduras near 15.5N84W. The front will stall today and begin to weaken then drift north from Cuba westward Tue morning and night. Strong high pres building over the western Atlc will increase the pressure gradient over the basin Tue through Fri. This will result in strong trades over most of the eastern and central Caribbean. Strong offshore gap winds will affect the lee of Cuba, and also blow through the Mona and Windward passages, especially on Wed and Thu. NW Caribbean W of 85W .TODAY...N winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...SE winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...S winds 10 to 15 kt, shifting to W in the afternoon. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...N winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 7 to 10 ft. Caribbean N of 15N between 72W and 85W .TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .TUE...E winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .WED...E winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .THU...SE winds 15 to 25 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W ...GALE WARNING... ...GALE CONDITIONS POSSIBLE TUE NIGHT... .TODAY...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TONIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 7 to 10 ft. .TUE...E winds 20 to 30 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 7 to 10 ft. .TUE NIGHT...E winds 25 to 35 kt within 90 nm of coast of Colombia, and E 20 to 30 kt elsewhere. Seas 9 to 14 ft within 90 nm of coast of Colombia, and 8 to 13 ft elsewhere. .WED...E winds 20 to 30 kt. Seas 9 to 14 ft. .WED NIGHT...E winds 20 to 30 kt. Seas 9 to 14 ft. .THU...E winds 20 to 30 kt. Seas 9 to 14 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .FRI...E winds 15 to 25 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. SW Caribbean S of 11N .TODAY...NE winds 15 to 25 kt. Seas 7 to 10 ft. .TONIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .TUE...NE winds 15 to 25 kt. Seas 8 to 11 ft. .TUE NIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft. .WED...NE winds 10 to 20 kt. Seas 8 to 13 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 13 ft. .THU...NE winds 10 to 15 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 7 to 10 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. Caribbean between 64W and 72W .TODAY...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 7 to 10 ft elsewhere. .WED...E winds 15 to 25 kt. Seas 7 to 10 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .THU...E winds 15 to 25 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI 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 .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. 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. Seas 5 to 7 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...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...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. Synopsis for the the SW N ATLC including the Bahamas .SYNOPSIS...A strong cold front extends from 31N65W to the SE Bahamas near 23N74W to eastern Cuba near 21N76W. The front will continue SE and stall from N of Puerto Rico to near the Windward Passage by Wed evening. Strong winds will develop between the front and 25N on Tue as strong high pressure builds north of the front. These winds will persist until Thu as the strong high following the front slowly shifts E over the western Atlc north of the area. Another strong cold front will move off the Florida coast on Thu afternoon. Gales will be possible along the front N of 30N. The front will reach from near 31N70W to the central Bahamas and to central Cuba Fri afternoon, then from near 31N69W to the SE Bahamas and eastern Cuba Fri night. Strong NW to N winds and building seas will follow in the wake of the front. ATLC waters from 27N to 31N W of 77W ...GALE CONDITIONS POSSIBLE WED NIGHT AND THU... .TODAY...N winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft. .WED...SE winds 15 to 20 kt. Seas 7 to 9 ft. .WED NIGHT...S winds 20 to 30 kt. Seas 8 to 11 ft. .THU...SW winds 20 to 30 kt. Seas 8 to 13 ft. .THU NIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...NW winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NW winds 20 to 25 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE WED NIGHT AND THU... .TODAY...NW winds 15 to 25 kt. Seas 9 to 14 ft. .TONIGHT...N winds 15 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 9 to 14 ft. .TUE...NE winds 15 to 20 kt. Seas 8 to 12 ft W of 70W, and 10 to 15 ft elsewhere. .TUE NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft W of 70W, and 10 to 15 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED NIGHT...SE winds 15 to 25 kt. Seas 7 to 10 ft. .THU...S winds 15 to 25 kt. Seas 8 to 11 ft. .THU NIGHT...SW winds 15 to 25 kt. Seas 8 to 11 ft. .FRI...SW winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. Bahamas N of 22N .TODAY...N winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .TUE...E winds 15 to 25 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .WED...E winds 15 to 25 kt. Seas 6 to 8 ft. .WED NIGHT...SE winds 15 to 25 kt. Seas 6 to 8 ft. .THU...S winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SW winds less than 10 kt, shifting to NW in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 15 to 25 kt W of 70W, and N 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TUE...NE winds 20 to 25 kt W of 70W, and NE 15 to 25 kt elsewhere. Seas 8 to 11 ft. .TUE NIGHT...NE winds 20 to 25 kt. Seas 10 to 12 ft. .WED...E winds 15 to 25 kt. Seas 10 to 12 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 9 to 12 ft. .THU...SE winds 15 to 20 kt. Seas 8 to 10 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 7 to 9 ft. .FRI...S winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 6 to 7 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...NE winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .WED...E winds 15 to 25 kt. Seas 8 to 12 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 8 to 12 ft. .THU...E winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...E winds 10 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 6 ft, building to 6 to 9 ft after midnight. .WED...NE winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft, building to 11 to 13 ft after midnight. .THU...E winds 15 to 25 kt. Seas 10 to 12 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft. .FRI...E winds 15 to 20 kt. Seas 8 to 9 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.