000 FZNT31 KNHC 170849 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 449 AM EDT Tue Sep 17 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 Atlantic from 07N to 19N between 55W and 64W .SYNOPSIS...Moderate to fresh trade winds will dominate much of the basin. Long period northerly swell will starting pushing through the Atlantic Ocean passages today. A tropical wave over the western Caribbean Sea will move west of the basin through mid week. Scattered thunderstorms and gusty winds accompany a second tropical wave currently in the eastern Caribbean that will move across the central Caribbean Sea Wed and Thu, and through the western Caribbean Sea Fri and Sat. A low pressure center developing east of the area will move toward the Atlantic Ocean offshore waters of the Leeward Islands by late Thu and Fri, possibly as a tropical cyclone. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .WED...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. .THU...N winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 ft. Caribbean N of 15N between 72W and 85W .TODAY...S of 18N, NE winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .WED...N winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...NE winds 10 to 20 kt. Seas 2 ft or less. .THU...NE winds 10 to 20 kt. Seas 3 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .SAT...E winds 10 to 15 kt. Seas 3 ft. Caribbean from 11N to 15N W of 72W .TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .WED...N winds less than 10 kt. Seas 3 ft. .WED NIGHT...Within 90 nm of coast of Colombia, NW winds 10 kt in the evening, becoming variable winds less than 10 kt. Elsewhere, N winds 10 to 15 kt. Seas 3 ft. .THU...N winds less than 10 kt, shifting to NW in the afternoon. Seas 3 ft. .THU NIGHT...NW winds 10 to 15 kt, shifting to SW after midnight. Seas 3 to 4 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...Within 90 nm of coast of Colombia, SW winds less than 10 kt, shifting to E after midnight. Elsewhere, S winds 10 to 15 kt, shifting to SE after midnight. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 3 ft. SW Caribbean S of 11N .TODAY...NW winds less than 10 kt. Seas 3 ft. .TONIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 ft in the evening, subsiding to 2 ft or less. .WED...W winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...W winds 10 to 15 kt. Seas 3 ft. .THU...W winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft. .SAT...S winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or less. Caribbean between 64W and 72W .TODAY...NE winds 10 to 15 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...N winds less than 10 kt Gulf of Venezuela, and SE 15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .THU...Gulf of Venezuela, Variable winds less than 10 kt, becoming SW 10 kt in the afternoon. Elsewhere, SE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .THU NIGHT...Gulf of Venezuela, Variable winds less than 10 kt, becoming NE less than 10 kt after midnight. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .FRI...SE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .FRI NIGHT...Gulf of Venezuela, NE winds 10 kt in the evening, becoming variable winds less than 10 kt. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .SAT...Variable winds less than 10 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 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 15 to 25 kt. Seas 5 to 7 ft. .FRI...SE winds 15 to 25 kt. Seas 6 to 9 ft. .FRI NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 7 to 10 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 15 to 25 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 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 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 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Hurricane Humberto is near 30.6N 74.3W 966 mb at 5 AM EDT moving ENE at 7 kt. Maximum sustained winds 80 kt gusts 100 kt. Humberto will move to 31.0N 73.0W this afternoon, 31.6N 70.7W Wed morning, then north of area to 32.5N 68.0W Wed afternoon. Humberto will move north of Bermuda Wed night and farther into the central north Atlantic waters through Sat, before weakening to an extratropical cyclone Sun. Northerly swell will follow across the open waters in the wake of Humberto. Looking ahead, a low pressure center developing tropical Atlantic will move toward waters off the Leeward Islands by late Thu and Fri, then north of the Virgin Islands by Sat, possibly as a tropical cyclone. ATLC waters from 27N to 31N W of 77W .TODAY...N winds 20 to 30 kt. Seas 8 to 13 ft. .TONIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. .WED...NE winds 10 to 20 kt. Seas 8 to 12 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 9 to 12 ft. .THU...NE winds 15 to 25 kt. Seas 11 to 13 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 11 to 13 ft. .FRI...E winds 15 to 25 kt. Seas 12 to 14 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 11 to 15 ft. .SAT...E winds 10 to 20 kt. Seas 11 to 14 ft. ATLC waters from 27N to 31N between 65W and 77W ...HURRICANE WARNING... .TODAY...HURRICANE CONDITIONS. SW winds 65 to 80 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 13 to 18 ft W of 70W, and 8 to 11 ft elsewhere. .TONIGHT...HURRICANE CONDITIONS EXPECTED. W of 70W, W winds 70 to 80 kt, becoming NW 50 to 60 kt after midnight. Elsewhere, SW winds 30 to 40 kt. Seas 12 to 17 ft W of 70W, and 9 to 14 ft elsewhere. .WED...TROPICAL STORM CONDITIONS POSSIBLE. W winds 25 to 35 kt. Seas 12 to 17 ft. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to 30 kt W of 70W, and W 20 to 30 kt elsewhere. Seas 12 to 17 ft. .THU...NE winds 15 to 25 kt W of 70W, and N 15 to 25 kt elsewhere. Seas 12 to 16 ft W of 70W, and 13 to 18 ft elsewhere. .THU NIGHT...NE winds 15 to 25 kt W of 70W, and N 10 to 20 kt elsewhere. Seas 12 to 16 ft W of 70W, and 14 to 19 ft elsewhere. .FRI...NE winds 15 to 25 kt W of 70W, and N 10 to 15 kt elsewhere. Seas 12 to 16 ft. .FRI NIGHT...NE winds 15 to 25 kt W of 70W, and NE 10 to 15 kt elsewhere. Seas 11 to 15 ft. .SAT...NE winds 10 to 20 kt. Seas 10 to 14 ft. Bahamas N of 22N .TODAY...W winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...S winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 7 to 9 ft. .WED...W winds 10 to 20 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 7 to 9 ft. .WED NIGHT...N winds 10 to 20 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 8 to 11 ft. .THU...SE winds 10 to 20 kt. Seas 8 to 12 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 8 to 13 ft. .FRI...E winds 15 to 25 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 11 to 13 ft. .FRI NIGHT...E winds 15 to 25 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 10 to 13 ft. .SAT...E winds 10 to 20 kt. Seas 10 to 13 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 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. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds 10 to 20 kt. Seas 8 to 9 ft. .TONIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. .WED...E winds 10 to 15 kt. Seas 7 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .THU...E winds 10 to 20 kt. Seas 6 to 7 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...E winds 15 to 25 kt. Seas 8 to 11 ft, building to 9 to 14 ft in the afternoon. .FRI NIGHT...E winds 15 to 25 kt. Seas 10 to 15 ft. .SAT...SE winds 15 to 25 kt. Seas 10 to 15 ft.