000 FZNT31 KNHC 170212 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1012 PM EDT Mon Sep 16 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 by Tuesday. A tropical wave entering the central Caribbean Sea will move through the western Caribbean Sea by Wed. Scattered thunderstorms and gusty winds accompany a second tropical wave that is in the eastern Caribbean. The second tropical wave will move across the central Caribbean Sea by Wed, and into the western Caribbean Sea late Thu to Fri. 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 .OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...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 in the morning, subsiding to 2 ft or less. .WED NIGHT...NE winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft after midnight. .THU...N winds 10 to 20 kt. Seas 3 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .OVERNIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. .TUE...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. .TUE NIGHT...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 to 4 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. .FRI NIGHT...E winds 10 to 20 kt. Seas 2 ft or less. .SAT...E winds 10 to 20 kt. Seas 3 ft. Caribbean from 11N to 15N W of 72W .OVERNIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...Within 90 nm of coast of Colombia, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 ft. .WED...Within 90 nm of coast of Colombia, E winds less than 10 kt, shifting to S in the afternoon. Elsewhere, NE winds less than 10 kt, shifting to N in the afternoon. Seas 3 ft. .WED NIGHT...N winds less than 10 kt within 90 nm of coast of Colombia, and N 10 to 15 kt elsewhere. Seas 3 ft. .THU...Within 90 nm of coast of Colombia, SW winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Elsewhere, N winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...NW winds 10 to 15 kt, shifting to S 10 to 20 kt after midnight. Seas 3 ft. .FRI...SW winds 10 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt, shifting to SE after midnight. Seas 3 to 4 ft. .SAT...E winds less than 10 kt within 90 nm of coast of Colombia, and SE 10 to 15 kt elsewhere. Seas 3 ft. SW Caribbean S of 11N .OVERNIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .TUE...N winds 10 to 15 kt, shifting to NW in the afternoon. Seas 3 ft. .TUE NIGHT...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, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less. .WED NIGHT...NW winds 10 to 15 kt. Seas 2 ft or less. .THU...W winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .THU NIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. .FRI...S winds 10 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .SAT...S winds 10 to 15 kt. Seas 2 ft or less. Caribbean between 64W and 72W .OVERNIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .TUE...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. .TUE NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED...N winds less than 10 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED NIGHT...Gulf of Venezuela, NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .THU...SW winds less than 10 kt Gulf of Venezuela, and SE 10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .THU NIGHT...NE winds less than 10 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .FRI...SE winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .FRI NIGHT...Gulf of Venezuela, W winds less than 10 kt, shifting to SE after midnight. Elsewhere, E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .SAT...N winds less than 10 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 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 20 kt, becoming NE 20 to 30 kt after midnight. Seas 5 to 7 ft. .FRI...E winds 20 to 30 kt. Seas 7 to 10 ft. .FRI NIGHT...SE winds 20 to 30 kt. Seas 7 to 10 ft. .SAT...SE winds 10 to 20 kt. Seas 6 to 9 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .OVERNIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .TUE...E winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 20 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 4 to 6 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 near 30.3N 75.1W 966 mb at 11 PM EDT moving ENE at 7 kt. Maximum sustained winds 80 kt gusts 100 kt. Humberto will move to 30.7N 74.0W Tue morning, 31.1N 72.2W Tue evening, 31.6N 70.0W Wed morning, 32.8N 66.6W Wed evening, and 37.1N 60.7W Thu evening. Humberto will change little in intensity as it moves near 40.5N 58.0W late Fri, and weaken as an extratropical cyclone over 43.0N 50.0W Sat. The center of Humberto is expected to approach Bermuda Wednesday night. Additional strengthening is expected during the next 48 hours, and Humberto is forecast to become a major hurricane by Tuesday night or Wednesday morning. Northerly swell will follow across the open waters in the wake of Humberto. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...NW winds 20 to 30 kt. Seas 9 to 14 ft. .TUE...N winds 20 to 30 kt. Seas 9 to 14 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 8 to 12 ft. .WED...NE winds 10 to 20 kt. Seas 9 to 12 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft. .THU...NE winds 15 to 25 kt. Seas 8 to 13 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 11 to 12 ft. .FRI...E winds 15 to 25 kt. Seas 10 to 13 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 9 to 13 ft. .SAT...E winds 15 to 25 kt. Seas 9 to 12 ft. ATLC waters from 27N to 31N between 65W and 77W ...HURRICANE WARNING... .OVERNIGHT...HURRICANE CONDITIONS. S winds 65 to 75 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 12 to 17 ft W of 70W, and 7 to 8 ft elsewhere. .TUE...HURRICANE CONDITIONS EXPECTED. SW winds 70 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. .TUE NIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, W winds 75 to 85 kt,Seas 12 to 17 ft. Elsewhere, SW winds 20 to 30 kt, becoming S 30 to 40 kt after midnight,Seas 8 to 12 ft, building to 10 to 15 ft after midnight. .WED...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, NW winds 50 to 60 kt, becoming N 20 to 30 kt in the afternoon. Elsewhere, SW winds 35 to 45 kt, diminishing to 25 to 35 kt in the afternoon. Seas 11 to 16 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 17 ft. .THU NIGHT...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 11 to 14 ft. .FRI...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 9 to 13 ft. .FRI NIGHT...E winds 15 to 25 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 9 to 13 ft W of 70W, and 8 to 10 ft elsewhere. .SAT...E winds 15 to 25 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 8 to 10 ft. Bahamas N of 22N .OVERNIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...W winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...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 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...E winds 15 to 25 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .OVERNIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...S winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...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 11 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 9 to 11 ft. .FRI...E winds 15 to 25 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 9 to 11 ft. .FRI NIGHT...E winds 15 to 25 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 8 to 11 ft. .SAT...E winds 15 to 25 kt. Seas 8 to 10 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...SE 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 15 to 25 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 8 to 9 ft. .TUE NIGHT...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 15 kt. Seas 6 to 7 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...E winds 20 to 30 kt. Seas 8 to 11 ft, building to 9 to 14 ft in the afternoon. .FRI NIGHT...E winds 20 to 30 kt. Seas 10 to 15 ft. .SAT...E winds 20 to 30 kt. Seas 10 to 15 ft.